Hartzell HC-A6A-3 Series Overhaul Manual

Six blade lightweight turbine propeller

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HARTZELL PROPELLER INC.

One Propeller Place

Piqua, Ohio 45356-2634 U.S.A.

Telephone: 937.778.4200

Fax: 937.778.4215

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MANUAL REVISION TRANSMITTAL

Manual 144 (61-10-44)

Six-Blade Lightweight Turbine Propeller

Overhaul Manual

REVISION 5 dated April 2023

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Page 1 HARTZELL PROPELLER INC. One Propeller Place Piqua, Ohio 45356-2634 U.S.A. Telephone: 937.778.4200 Fax: 937.778.4215 MANUAL REVISION TRANSMITTAL Manual 144 (61-10-44) Six-Blade Lightweight Turbine Propeller Overhaul Manual REVISION 5 dated April 2023 Remove Pages: Insert Pages: Entire Manual Entire Manual NOTE 1: When the manual revision has been inserted in the manual, record the information required on the Record of Revisions pages in this manual.
Page 2 (This page is intentionally blank.) page 2 of 2...
Page 3 Manual No. 144 61-10-44 Revision 5 April 2023 Six Blade Lightweight Turbine Propeller Overhaul Manual HC-A6A-3( ) Hartzell Propeller Inc. One Propeller Place Piqua, Ohio 45356-2634 U.S.A. Phone: 937.778.4200 Fax: 937.778.4215...
Page 5 Front matter (Cover, Revision Highlights, etc.), has been revised to match this revision. Updated the Hartzell Propeller Inc. logo on the cover and revised the header on all pages. Minor language/format changes and renumbering, if applicable are marked with a revision bar, but are not listed below.
Page 6 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 2 REVISION HIGHLIGHTS Rev. 5 Apr/23...
Page 7 HARTZELL PROPELLER OVERHAUL MANUAL REVISION 5 HIGHLIGHTS 1. Introduction A. General (1) This is a list of current revisions that have been issued against this manual. Please compare to RECORD OF REVISIONS page to make sure that all revisions have been added to the manual.
Page 8 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 4 REVISION HIGHLIGHTS Rev. 5 Apr/23...
Page 9 HARTZELL PROPELLER OVERHAUL MANUAL RECORD OF REVISIONS This is a record of revisions inserted into this manual. Revision 5 includes all prior revisions. Revision Number Issue Date Date Inserted Inserted By Apr/23 Apr/23 61-10-44 Page 1 Rev. 5 Apr/23 RECORD OF REVISIONS...
Page 10 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 2 Rev. 5 Apr/23 RECORD OF REVISIONS...
Page 11 HARTZELL PROPELLER OVERHAUL MANUAL RECORD OF TEMPORARY REVISIONS Update this page to show all temporary revisions inserted into this manual. Revision 2 includes all prior temporary revisions, up to and including TR-009. Temporary Section/ Issue Date Inserted Date Removed Revision No.
Page 12 HARTZELL PROPELLER OVERHAUL MANUAL RECORD OF TEMPORARY REVISIONS Update this page to show all temporary revisions inserted into this manual. Revision 2 includes all prior temporary revisions, up to and including TR-009. Temporary Section/ Issue Date Inserted Date Removed Revision No.
Page 13 HARTZELL PROPELLER OVERHAUL MANUAL SERVICE DOCUMENT LIST CAUTION 1: DO NOT USE OBSOLETE OR OUTDATED INFORMATION. PERFORM ALL INSPECTIONS OR WORK IN ACCORDANCE WITH THE MOST RECENT REVISION OF THE SERVICE DOCUMENT. INFORMATION CONTAINED IN A SERVICE DOCUMENT MAY BE SIGNIFICANTLY CHANGED FROM EARLIER REVISIONS.
Page 14 HARTZELL PROPELLER OVERHAUL MANUAL Service Document Incorporation Service Document Incorporation Number Rev./Date Number Rev./Date 61-10-44 Page 2 SERVICE DOCUMENT LIST Rev. 5 Apr/23...
Page 15 1. Airworthiness Limitations A. Life Limits (1) Certain component parts, as well as the entire propeller, may have specific life limits established by the FAA. Such limits require replacement of items after a specific number of hours of use. (2) For airworthiness limitations information, refer to Hartzell Propeller Inc. Owner's Manual 154 (61-00-54). 61-10-44 Page 1 AIRWORTHINESS LIMITATIONS...
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Page 17 HARTZELL PROPELLER OVERHAUL MANUAL LIST OF EFFECTIVE PAGES Chapter Page Rev. Level Date Cover/Inside Cover Cover/Inside Cover Rev. 5 Apr/23 Revision Highlights 1 thru 4 Rev. 5 Apr/23 Record of Revisions 1 and 2 Rev. 5 Apr/23 Record of Temporary Revisions 1 and 2 Rev.
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Page 19: Table Of Contents
HARTZELL PROPELLER OVERHAUL MANUAL TABLE OF CONTENTS REVISION HIGHLIGHTS ....................1 RECORD OF REVISIONS ....................1 RECORD OF TEMPORARY REVISIONS ................1 SERVICE DOCUMENT LIST....................1 AIRWORTHINESS LIMITATIONS ..................1 LIST OF EFFECTIVE PAGES ..................1 TABLE OF CONTENTS ....................1 INTRODUCTION ......................1 DESCRIPTION AND OPERATION ...................1 TESTING AND FAULT ISOLATION ................1-1...
Page 20: Table Of Contents
HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 2 TABLE OF CONTENTS Rev. 5 Apr/23...
Page 21: Introduction
9. Propeller Critical Parts ..................11 A. Propeller Critical Parts..................11 10. Warranty Service ....................11 A. Warranty Claims ..................... 11 11. Hartzell Propeller Inc. Contact Information ............12 A. Product Support Department................12 B. Technical Publications Department ..............12 C. Recommended Facilities ................12 12. Definitions ......................13...
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Page 23: General
Letters, Service Advisories, and Service Instructions for information that may have not yet been incorporated into the latest revision of this manual. (4) This manual makes reference to other Hartzell Propeller Inc. manuals that provide important details for procedures such as anodizing, penetrant inspection, and overhaul procedures for hub units.
Page 24: Item References
HARTZELL PROPELLER OVERHAUL MANUAL B. Item References (1) Item references throughout the text in this manual refer to item numbers in the Illustrated Parts List chapter of this manual. The item numbers appear in parentheses directly following the part name. Only the item base number will appear in the text of the manual.
Page 25: Reference Publications
Manual No. Available at Hartzell Propeller Inc. Manual Title (ATA No.) www.hartzellprop.com Active Hartzell Propeller Inc. Service Bulletins, Service Letters, Service Instructions, and Service Advisories Manual 135F Composite Propeller Blade (61-13-35) Maintenance Manual...
Page 26: Personnel Requirements
(Rev. 1) A. Special Tooling (1) Special tooling may be required for procedures in this manual. For further tooling information, refer to Hartzell Propeller Inc. Illustrated Tool and Equipment Manual 165A (61-00-65). (a) Tooling reference numbers appear with the prefix “TE” directly following the tool name to which they apply. For example, a template that is reference number 133 will appear as: template TE133.
Page 27: Safe Handling Of Paints And Chemicals
B. Long Term Storage (1) Propellers that have been in storage have additional inspection requirements before installation. Refer to the Packaging and Storage chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). 61-10-44 Page 7 INTRODUCTION...
Page 28: Component Life And Overhaul
(a) It is a regulatory requirement that a record of the Time Since New (TSN) be maintained for all life limited parts. (b) Refer to the Airworthiness Limitations chapter in the applicable Hartzell Propeller Inc. Owner's Manual for a list of life limited components.
Page 29: Overhaul
(a) Parts that are not replaced at overhaul must be inspected in accordance with the check criteria in the applicable Hartzell Propeller Inc. component maintenance manual. (b) Parts that must be replaced at overhaul are identified by a "Y" in the O/H column of the Illustrated Parts List in the applicable Hartzell Propeller Inc.
Page 30: Damage/Repair Types
Federal Aviation Administration (FAA) or international equivalent. Hartzell recommends that individuals performing major repairs also have a Factory Training Certificate from Hartzell Propeller Inc. The repair station must meet facility, tooling, and personnel requirements and is required to participate in Hartzell Propeller Inc. Sample Programs as defined in the Approved Facilities chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). 61-10-44...
Page 31: Propeller Critical Parts
(Rev. 1) A. Warranty Claims (1) If you believe you have a warranty claim, contact the Hartzell Propeller Inc. Product Support Department to request a Warranty Application form. Complete this form and return it to Hartzell Product Support for evaluation before proceeding with repair or inspection work.
Page 32: Hartzell Propeller Inc. Contact Information
(937) 778-4379 or at (800) 942-7767, toll free from the United States and Canada. (b) Hartzell Propeller Inc. Product Support can also be reached by fax at (937) 778-4215, and by e-mail at techsupport@hartzellprop.com. After business hours, you may leave a message on our 24 hour product support line at (937) 778-4376 or at (800) 942-7767, toll free from the United States and Canada.
Page 33: Definitions
HARTZELL PROPELLER OVERHAUL MANUAL 12. Definitions (Rev. 4) A basic understanding of the following terms will assist in maintaining and operating Hartzell Propeller Inc. propeller systems. Term Definition Annealed Softening of material due to overexposure to heat Aviation Certified Intended for FAA or international equivalent type certificated aircraft applications. A TC and PC number...
Page 34 HARTZELL PROPELLER OVERHAUL MANUAL Term Definition Bulge An outward curve or bend Camber The surface of the blade that is directed toward the front of the aircraft. It is the low pressure, or suction, side of the blade. The camber side is convex in shape over the entire length of the blade.
Page 35 HARTZELL PROPELLER OVERHAUL MANUAL Term Definition Corrosion Product A white or dull gray powdery material that has an (Aluminum) increased volume appearance (compared to non-corroded aluminum). Corrosion product is not to be confused with damage left in the base aluminum such as pits, worm holes, and etched surface finish.
Page 36 HARTZELL PROPELLER OVERHAUL MANUAL Term Definition Face The surface of the blade that is directed toward the rear of the aircraft. The face side is the high pressure, or thrusting, side of the blade. The blade airfoil sections are normally cambered or curved such that the face side of the blade may be flat or even concave in the midblade and tip region.
Page 37 HARTZELL PROPELLER OVERHAUL MANUAL Term Definition Major Propeller Effect The major propeller effects are defined in Title 14 CFR section 35.15(g)(2) Minor Deformation Deformed material not associated with a crack or missing material Monocoque A type of construction in which the outer skin carries all or a major part of the load...
Page 38 HARTZELL PROPELLER OVERHAUL MANUAL Term Definition Pitting (Linear) The configuration of the majority of pits forming a pattern in the shape of a line Porosity An aggregation of microvoids. See “voids”. Propeller Critical Parts A part on the propeller whose primary failure can result in a hazardous propeller effect, as determined by the safety analysis required by Title 14 CFR section 35.15...
Page 39 HARTZELL PROPELLER OVERHAUL MANUAL Term Definition Track In an assembled propeller, a measurement of the location of the blade tip with respect to the plane of rotation, used to verify face alignment and to compare blade tip location with respect to the locations of the other blades in the...
Page 40: Abbreviations
HARTZELL PROPELLER OVERHAUL MANUAL 13. Abbreviations (Rev. 2) Abbreviation Term Airworthiness Directives Aircraft Maintenance Manual Aircraft on Ground As Required Air Transport Association Constant Speed Unit Federal Aviation Administration Flight Hour Flight Manual Flight Manual Supplement Ft-Lb Foot-Pound Human Machine Interface...
Page 41 HARTZELL PROPELLER OVERHAUL MANUAL Abbreviation Term Newtons Not Applicable National Aerospace Standards NASM National Aerospace Standards, Military Nondestructive Testing NIST National Institute of Standards and Technology N•m Newton-Meters Outside Diameter Optional Production Certificate Propeller Critical Part Programmable Logic Controller Plastic Media Blasting (Cleaning) Pilot’s Operating Handbook...
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Page 43: Description And Operation
HARTZELL PROPELLER OVERHAUL MANUAL DESCRIPTION AND OPERATION - CONTENTS 1. General ........................3 A. Propeller/Blade Model Designation ..............3 2. Operation .......................4 A. HC-A6A-3( ) ......................4 B. Feathering the Propeller ...................5 C. Unfeathering the Propeller ................5 D. Reversing the Propeller ..................6 61-10-44...
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Page 45: General
1. General (Rev. 1) A. Propeller/Blade Model Designation (1) Hartzell Propeller Inc. uses a model number designation system to identify specific propeller and blade assemblies. The propeller model number and blade model number are separated by a slash ( / ).
Page 46: Operation
HARTZELL PROPELLER OVERHAUL MANUAL 2. Operation CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS CHAPTER MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST CHAPTER OF THIS MANUAL FOR THE IDENTIFICATION OF SPECIFIC PROPELLER CRITICAL PARTS.
Page 47: Feathering The Propeller
HARTZELL PROPELLER OVERHAUL MANUAL (9) The piston engages beta rods at predetermined settings. Movement of the blades to a lower pitch causes the rods to move the beta ring away from the engine. (10) A carbon block assembly rides in the groove of the beta ring. Linear motion...
Page 48: Reversing The Propeller
HARTZELL PROPELLER OVERHAUL MANUAL D. Reversing the Propeller (1) In the reverse mode of operation, the governor is reset to act as a source of pressurized oil. Control of the propeller then is transferred to the beta valve which controls blade angle rather than RPM.
Page 49 HARTZELL PROPELLER OVERHAUL MANUAL TESTING AND FAULT ISOLATION - CONTENTS 1. Troubleshooting Guide ..................1-3 A. Too much Friction in the Hub Mechanism .............1-3 B. Too much Friction in the Piston ..............1-3 C. Failure to Change Pitch .................1-4 D. Surging RPM or Torque .................1-4 E.
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Page 51: Troubleshooting Guide
HARTZELL PROPELLER OVERHAUL MANUAL 1. Troubleshooting Guide CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS CHAPTER MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST IN THIS MANUAL FOR IDENTIFICATION OF PROPELLER CRITICAL PARTS.
Page 52: Failure To Change Pitch
HARTZELL PROPELLER OVERHAUL MANUAL Problem Probable Cause Remedy C. Failure to Change Pitch There is too much friction in the Refer to the problem, "Too Much (Sluggish rpm in both moving parts. Friction in the Hub Mechanism" in directions) this chapter.
Page 53: Slight Vibration
HARTZELL PROPELLER OVERHAUL MANUAL Problem Probable Cause Remedy E. Abnormal Propeller There is a bent, cracked, or Refer to Hartzell Propeller Inc. Vibration damaged blade. Composite Propeller Blade Maintenance Manual 135F (61-13-35). or There is a cracked or damaged Refer to the Aluminum Hub hub.
Page 54: Oil Leakage
HARTZELL PROPELLER OVERHAUL MANUAL Grease leakage at any lubrication fitting Grease leakage at blade socket in hub Oil leakage at the seal between the pitch change rod and the piston Grease leakage at any lubrication fitting bleeder Oil leakage at the pitch...
Page 55 HARTZELL PROPELLER OVERHAUL MANUAL Problem Probable Cause Remedy Oil Leakage There is a defective O-ring seal Remove the propeller from the (Refer to Figure 1-1) between the piston and the engine and inspect the O-ring and cylinder. the sealing surface. Replace any defective O-ring.
Page 56: End-Play Of The Blade
HARTZELL PROPELLER OVERHAUL MANUAL Problem Probable Cause Remedy End-Play of the Blade There is a buildup of Disassemble the propeller and Refer to Figure 8-2 and manufacturing tolerances. reset the preload. Table 8-2, Blade Tolerances or The blade retention bearing Inspect and/or replace the blade is worn.
Page 57: Lightning Strike On Hub Or Blade
(a) A lightning strike on the propeller usually leaves arcing damage on the blade, as evidence of where it entered or left the tip of the blade. (b) Refer to the Special Inspections chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02) for lightning strike inspection criteria.
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Page 59: Automatic Test Requirements
HARTZELL PROPELLER OVERHAUL MANUAL AUTOMATIC TEST REQUIREMENTS (NOT APPLICABLE) (Rev. 1) NOTE: In accordance with ATA iSpec 2200 specification, this space is reserved for automatic test requirements. Such requirements are not applicable to the Hartzell Propeller Inc. propellers included in this manual. 61-10-44 Page 2-1 AUTOMATIC TEST REQUIREMENTS Rev. 5 Apr/23...
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Page 61 HARTZELL PROPELLER OVERHAUL MANUAL DISASSEMBLY - CONTENTS Page Important Information .....................3-3 A. Removing the Propeller...................3-3 B. Record Serial Numbers/Blade Location Before Disassembly ......3-3 C. Ice Protection System (if applicable) ...............3-4 Propeller Disassembly ..................3-4 A. General ......................3-4 B. Disassembly of the Propeller ................3-5 C.
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Page 63: Important Information
(a) For the location of the serial number on the hub, refer to the Parts Identification and Marking chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). CAUTION 1: DO NOT ETCH, SCRIBE, PUNCH MARK, OR SIMILARLY IDENTIFY PARTS IN ANY MANNER THAT MAY BE HARMFUL TO THE STRENGTH OR FUNCTION OF THE PROPELLER.
Page 64: Ice Protection System (If Applicable)
HARTZELL PROPELLER OVERHAUL MANUAL C. Ice Protection System (if applicable) (1) If the propeller is equipped with an ice protection system supplied by Hartzell, refer to Hartzell Propeller Inc. Ice Protection System Manual 180 (30-61-80) for technical information about the applicable ice protection system.
Page 65: Disassembly Of The Propeller
HARTZELL PROPELLER OVERHAUL MANUAL B. Disassembly of the Propeller (1) Disassemble the beta feedback block assembly (900). (a) Remove and discard the T-head cotter pin (950) from the clevis pin (920). (b) Remove and discard the clevis pin (920) from the yoke unit (910) and the carbon block unit (930).
Page 66 HARTZELL PROPELLER OVERHAUL MANUAL (16) Manually turn the blades of the propeller to reverse blade pitch to raise the cylinder (200) off of the hub unit (500). (17) Using the modified deep well socket TE120 or an applicable crowfoot adapter on the hex section of the pitch change rod (380), turn the pitch change rod (380) from the fork (430).
Page 67 HARTZELL PROPELLER OVERHAUL MANUAL CAUTION: MAKE SURE THAT THE BLADES ARE LOOSE IN THE SOCKETS OF THE HUB UNIT (500) BEFORE SEPARATING THE HALVES OF THE HUB (UNIT (500) (29) Loosen the thin hex nut (1570) and the set screw (1560) until the blades become loose in the blade sockets of the hub unit (500).
Page 68 HARTZELL PROPELLER OVERHAUL MANUAL CAUTION: DO NOT PERMIT THE PROPELLER BLADE ASSEMBLIES TO FALL OUT OF THEIR SOCKETS WHEN THE CYLINDER-SIDE HALF OF THE HUB UNIT (500) IS REMOVED. (32) Remove the cylinder-side half of the hub unit (500). (a) If a hub lifting tool and hoist were used, remove them from the cylinder-side half of the hub unit (500).
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Page 70 HARTZELL PROPELLER OVERHAUL MANUAL Split Keeper (370) Disassembly of the Feathering Compression Spring Figure 3-1 61-10-44 Page 3-10 DISASSEMBLY Rev. 5 Apr/23...
Page 71: Disassembly Of The Cylinder And Feathering Spring Assembly
HARTZELL PROPELLER OVERHAUL MANUAL C. Disassembly of the Cylinder and Feathering Spring Assembly - Refer to Figure 3-1 WARNING: THE FEATHERING SPRING ASSEMBLY IS PRELOADED TO APPROXIMATELY 800 POUNDS (362.4 KG) FORCE. MAKE SURE OF THE SAFETY OF PERSONNEL IN THE AREA DURING DISASSEMBLY PROCEDURES.
Page 72: Disassembly
HARTZELL PROPELLER OVERHAUL MANUAL D. Disassembly of the Blade Retention Parts (1) Remove and discard the blade O-ring (1640). (2) Remove the hub-side race (1620) from the blade. (3) Remove and discard the bearing balls (1610) from the blade. (4) Remove and discard the ball spacer (1630) from the blade.
Page 73: Blade Disassembly
E. Blade Disassembly (1) For composite blade overhaul procedures, counterweight disassembly, and balance weight disassembly, refer to Hartzell Propeller Inc. Composite Propeller Blade Maintenance Manual 135F (61-13-35). F. Hub Disassembly (1) For a hub unit (500) that uses a 105450 rod hub bushing (550) in the hub bore,...
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Page 75: Cleaning
HARTZELL PROPELLER OVERHAUL MANUAL CLEANING - CONTENTS Cleaning Procedures ..................4-3 A. General Cleaning ..................4-3 B. Cleaning Steel Parts for Magnetic Particle Inspection ........4-3 C. Cleaning Steel Parts for Cadmium Replating Procedures ......4-3 D. Cleaning Aluminum Parts for Penetrant Inspection ........4-3 E.
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Page 77 (1) Refer to the Penetrant Inspection chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). F. Cleaning Aluminum Parts for Chromic Acid Anodizing Procedures (1) Refer to the Chromic Acid Anodizing chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). G. Cleaning Cylinder Threads (Propellers with screw-on cylinders only)
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Page 79 HARTZELL PROPELLER OVERHAUL MANUAL CHECK - CONTENTS 1. Inspection Interval Requirements ............... 5-5 A. General ....................... 5-5 2. Dimensional Inspection ..................5-5 A. Diameter Measurements ................5-5 B. Decimal Places ................... 5-5 3. Inspection Criteria/Procedures ................5-6 A. Propeller Components ................5-6 B.
Page 80 HARTZELL PROPELLER OVERHAUL MANUAL CHECK - CONTENTS 4. Propeller Component Checks ................5-7 A. PISTON UNIT (Item 110) ................5-9 B. CYLINDER UNIT (Item 200) ..............5-13 C. PITCH STOP SHIM (Item 240) ..............5-17 D. STOP RING (Item 250) ................5-19 E.
Page 81 HARTZELL PROPELLER OVERHAUL MANUAL LIST OF FIGURES Piston Unit ................Figure 5-1 .....5-8 Cylinder Unit ................Figure 5-2 ....5-12 Pitch Stop Shim ...............Figure 5-3 ....5-16 Stop Ring .................Figure 5-4 ....5-18 Feathering Compression Spring ..........Figure 5-5 ....5-20 Rear Spring Retainer ...............Figure 5-6 ....5-22 Pitch Change Rod ..............Figure 5-7 ....5-24...
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Page 83 (1) For information about life limited components and mandatory inspections, refer to the Airworthiness Limitations chapter of the applicable Hartzell Propeller Inc. owner's manual. (2) For overhaul periods of Hartzell Propeller Inc. propellers, refer to Hartzell Propeller Inc. Service Letter HC-SL-61-61Y. 2. Dimensional Inspection (Rev.
Page 84 (1) For ice protection systems supplied by Hartzell, refer to Hartzell Propeller Inc. Ice Protection System Manual 180 (30-61-80). (2) For ice protection systems not supplied by Hartzell, refer to the applicable TC or STC holder’s Instructions for Continued Airworthiness (ICA).
Page 85: Propeller Component Checks
HARTZELL PROPELLER OVERHAUL MANUAL 4. Propeller Component Checks CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS CHAPTER MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST IN THIS MANUAL FOR IDENTIFICATION OF PROPELLER CRITICAL PARTS.
Page 86: Piston Unit (Item 110)
HARTZELL PROPELLER OVERHAUL MANUAL Threads "G" Piston Piston Insert (40) Groove Bore "C" "D" Width "F" Outboard Corner of the Piston Boss Groove Side Wall "B" Thickness Piston "E" Groove "A" End Wall Thickness "A" "B" "C" "D" "E" "F"...
Page 87 If there is corrosion the corrosion product. Refer to piston unit for corrosion product, remove it in accordance the Cleaning chapter of Hartzell product, pitting, or other with the corrective action repair Propeller Inc. Standard Practices damage.
Page 88 Chromic Acid Anodizing chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). (6) Measure the end wall The minimum permitted end wall...
Page 89 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action PISTON UNIT, CONTINUED (Item 110) Refer to Figure 5-1. (9) Penetrant inspect the A relevant indication is not If there is relevant indication, piston unit in accordance permitted.
Page 90: Cylinder Unit (Item 200)
HARTZELL PROPELLER OVERHAUL MANUAL Pitch Stop Shim Attachment Holes (Total of 3) Bore Bore "C" "E" Bore Groove "F" "D" Cylinder Mounting Hole Area "G" "B" "A" "B" "C" "D" "E" "F" MAXIMUM MAXIMUM MAXIMUM MAXIMUM MAXIMUM DIAMETER DIAMETER DIAMETER...
Page 91 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action CYLINDER UNIT (Item 200) Refer to Figure 5-2. (1) Before beginning the inspection of the cylinder unit (200), make sure that the two rod cylinder bushings (210, 220) have been removed.
Page 92 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action CYLINDER UNIT, CONTINUED (Item 200) Refer to Figure 5-2. (8) Using white light, A crack is not permitted. If there is a crack, replace the visually examine the cylinder.
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Page 94: Pitch Stop Shim
HARTZELL PROPELLER OVERHAUL MANUAL Surface B Surface A Slot Width Pitch Stop Shim Figure 5-3 61-10-44 Page 5-16 CHECK Rev. 5 Apr/23...
Page 95: Pitch Stop Shim (Item 240)
If the pitch stop shim is equivalent. Refer to the Cleaning damaged, measure the depth chapter of Hartzell Propeller Inc. of the damage. The maximum Standard Practices Manual 202A permitted depth of pitting or (61-01-02). If the corrosion product other damage is 0.001 inch...
Page 96: Stop Ring (Item 250)
HARTZELL PROPELLER OVERHAUL MANUAL TPI-144011 Attachment Hole Counterbore of the Attachment Hole Stop Ring Figure 5-4 61-10-44 Page 5-18 CHECK Rev. 5 Apr/23...
Page 97 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action D. STOP RING (Item 250) Refer to Figure 5-4. Except for the If there is damage, measure Remove material that is raised attachment hole and the depth of the damage. The...
Page 98: Feathering Compression Spring (Item 340, 350)
HARTZELL PROPELLER OVERHAUL MANUAL Feathering Compression Spring Figure 5-5 61-10-44 Page 5-20 CHECK Rev. 5 Apr/23...
Page 99 Refer spring material. If no If the feathering compression to the Cleaning chapter of Hartzell nylon coating is missing, spring has pitting or is damaged, Propeller Inc. Standard Practices then further inspection measure the depth of pitting Manual 202A (61-01-02).
Page 100: Rear Spring Retainer (Item 360)
HARTZELL PROPELLER OVERHAUL MANUAL "B" "A" Shoulder C Rear Spring Retainer Figure 5-6 61-10-44 Page 5-22 CHECK Rev. 5 Apr/23...
Page 101 If there is corrosion glass bead cleaning. Refer to corrosion product and product, remove it in accordance the Cleaning chapter of Hartzell pitting. with the corrective action repair Propeller Inc. Standard Practices limits. The maximum permitted Manual 202A (61-01-02).
Page 102: Pitch Change Rod (Item 380)
HARTZELL PROPELLER OVERHAUL MANUAL 0.13 ± 0.03 inch (3.3 ± 0.7 mm) 0.13 ± 0.03 inch 0.13 ± 0.03 inch (3.3 ± 0.7 mm) (3.3 ± 0.7 mm) Area "A" Area "B" Area "C" Area Area Groove "H" Area "C"...
Page 103 "H". of groove "H" is 0.157 inch than the permitted serviceable (3.98 mm). limits, send the pitch change rod to Hartzell Propeller Inc. for modification. Visually examine Minor wear on corners and If the chrome plating coverage the pitch change rod...
Page 104 Visually examine the The pitch change rod must If there is bending, return the pitch pitch change rod for be straight; bending is not change rod to Hartzell Propeller Inc. straightness. permitted. for repair. Visually examine the Displaced material must not Using an abrasive pad CM47 or wrenching flats "G"...
Page 105 OD of area "B" is serviceable limits, send the 1.432 inch (36.38 mm). pitch change rod to Hartzell Area "N", that has a length Propeller Inc. for chrome of 0.25 ± 0.030 inch re-plating.
Page 106 Remove all unwanted material. of the pitch change rod permitted. Refer to the Cleaning chapter for unwanted material. of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). (14) Penetrant inspect the A relevant indication is not If there is a relevant indication, pitch change rod in permitted.
Page 107 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 5-29 CHECK Rev. 5 Apr/23...
Page 108: Hex Head Bolt (Items 410, 420)
HARTZELL PROPELLER OVERHAUL MANUAL AREA "A" Threads Fillet AREA "A" Fillet Hex Head Hex Head Bolt Figure 5-8 61-10-44 Page 5-30 CHECK Rev. 5 Apr/23...
Page 109 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action H. HEX HEAD BOLT (Items 410, 420) Refer to Figure 5-8. Visually examine Corrosion product is not Remove corrosion product using the hex head bolt for permitted.
Page 110: Check
HARTZELL PROPELLER OVERHAUL MANUAL CAUTION: DO NOT USE MODIFIED A-2043-1 NUTS ON THE PROPELLER ASSEMBLY. A-2043-1 NUTS THAT HAVE BEEN MODIFIED ARE TO BE USED ONLY FOR THE HEX HEAD BOLT THREAD CHECK. Metal Housing Plastic Locking Element Nut may be machined to remove the plastic...
Page 111 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action H. HEX HEAD BOLT, CONTINUED (Items 410, 420) Refer to Figure 5-8. Visually examine the A maximum total accumulation of Limited thread file repair is threads of the hex head...
Page 112 HARTZELL PROPELLER OVERHAUL MANUAL Pitch Change Rod Engagement Threads of the Channel Fork Insert (440) Width Fork Insert (440) Fork Channel Tapered Part of the Fork Insert (440) Fork Figure 5-10 61-10-44 Page 5-34 CHECK Rev. 5 Apr/23...
Page 113: Fork And Fork Insert (Item 430 And Item 440)
Using plastic media cleaning, remove the Xylan coating from the channels of the fork. Refer ® to the Cleaning chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). When all the inspections are satisfactory, reinstall the Xylan coating to the channels of the fork ®...
Page 114 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action FORK AND FORK INSERT, CONTINUED (Item 430 and Item 440) Refer to Figure 5-10. Visually examine the There must be complete carbide If the carbide coating coverage is walls of the channel for coating coverage.
Page 115: Hub Unit (Item 500)
(Item 500) Complete the inspection of the hub in accordance with the Aluminum Hub Overhaul chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). Instructions for modification to install a new pitch change rod hub bushing in the pitch change rod bore on the engine side hub half of a D-1066 propeller hub, refer to the section "Modifying...
Page 116: Hub Bushing P/N 105450
HARTZELL PROPELLER OVERHAUL MANUAL TI-354-105450_ "C" "A" "D" "D" "E" "A" "F" "B" Hub Bushing P/N 105450 Figure 5-11 61-10-44 Page 5-38 CHECK Rev. 5 Apr/23...
Page 117: Hub Bushing, Rod, Part Number 105450 (Item 550)
HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action HUB BUSHING, ROD, PART NUMBER 105450 (Item 550) Refer to Figure 5-11. Visually examine Minor scratches are permitted. If there are scratches or damage and measure the...
Page 118 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action HUB BUSHING, ROD, PART NUMBER 105450, CONTINUED (Item 550) Refer to Figure 5-11. Visually examine and Minor scratches are permitted. If a scratch is greater than the...
Page 119 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 5-41 CHECK Rev. 5 Apr/23...
Page 120: Hub-To-Bushing Interface Inspection
HARTZELL PROPELLER OVERHAUL MANUAL "E" Chamfer "C" "D" 0.110 inch (2.79 mm) 0.310 inch (7.87 mm) "A" "B" Hub-to-Bushing Interface Inspection Figure 5-12 61-10-44 Page 5-42 CHECK Rev. 5 Apr/23...
Page 121: D-1066-1 Aluminum Hub Engine Side Interface With 105450 Bushing (Item 500)
HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action D-1066-1 ALUMINUM HUB ENGINE SIDE INTERFACE WITH 105450 BUSHING (Item 500) Refer to Figure 5-12. Visually examine the A smooth surface is required. If the wear or damage is greater...
Page 122 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action D-1066-1 ALUMINUM HUB ENGINE SIDE INTERFACE WITH 105450 BUSHING, CONTINUED (Item 380) Refer to Figure 12. Measure the width The minimum permitted If the width of the hub shoulder...
Page 123 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 5-45 CHECK Rev. 5 Apr/23...
Page 124: C-1055 Beta Ring
HARTZELL PROPELLER OVERHAUL MANUAL Thread "K" Thread "J" Area "H" Area "G" Width "C" Area "D" Surface Area "F" Surface Area "B" Width "I" Surface Area "F" Surface Area "A" C-1055 Beta Ring Figure 5-13 61-10-44 Page 5-46 CHECK Rev. 5 Apr/23...
Page 125: Beta Ring (Item 700)
HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action BETA RING (Item 700) Refer to Figure 5-13. Visually examine the A crack is not permitted. If there is a crack, replace the beta ring for a crack.
Page 126: Repair
HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action BETA RING, CONTINUED (Item 700) Refer to Figure 5-13. Measure any depression A depression or gouge must Using emery cloth, blend a or gouge on the outside be removed.
Page 127 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 5-49 CHECK Rev. 5 Apr/23...
Page 128: Beta Rod (Item 720)
HARTZELL PROPELLER OVERHAUL MANUAL Wrenching Flats Rod End Ring-Support Threads Minimum permitted OD is 0.370 inch (9.40 mm) Minimum permitted OD is 0.370 inch (9.40 mm) Beta Ring Engagement Threads Set Screw Flat Beta Rod Figure 5-14 61-10-44 Page 5-50 CHECK Rev.
Page 129 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action BETA ROD (Item 720) Refer to Figure 5-14. Visually examine each Bending or distortion is not If there is bending or distortion, beta rod for bending or permitted.
Page 130 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action BETA ROD, CONTINUED (Item 720) Refer to Figure 5-14. Visually examine the set Sufficient flat must exist without If the damage is greater than screw flat of the beta...
Page 131 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 5-53 CHECK Rev. 5 Apr/23...
Page 132: Beta Spring Retainer (Item 770)
HARTZELL PROPELLER OVERHAUL MANUAL Threads Flat Area of the Threads OD of the Threaded Area Threaded Area Beta Spring Retainer Figure 5-15 61-10-44 Page 5-54 CHECK Rev. 5 Apr/23...
Page 133 If there is corrosion glass bead cleaning. Refer to for corrosion product product, remove it in accordance the Cleaning chapter of Hartzell and pitting. with the corrective action repair Propeller Inc. Standard Practices limits. The maximum permitted Manual 202A (61-01-02).
Page 134 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action BETA SPRING RETAINER, CONTINUED (Item 770) Refer to Figure 5-15. Magnetic particle A relevant indication is not If there is a relevant indication, inspect the beta permitted.
Page 135 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 5-57 CHECK Rev. 5 Apr/23...
Page 136: Beta Rod Support Ring (Item 820)
HARTZELL PROPELLER OVERHAUL MANUAL Beta Rod Support Ring Figure 5-16 61-10-44 Page 5-58 CHECK Rev. 5 Apr/23...
Page 137 If there is corrosion glass bead cleaning. Refer to for corrosion product product, remove it in accordance the Cleaning chapter of Hartzell and pitting. with the corrective action repair Propeller Inc. Standard Practices limits. The maximum permitted Manual 202A (61-01-02).
Page 138: Yoke Unit (Item 910)
HARTZELL PROPELLER OVERHAUL MANUAL Pin Portion Diameter Yoke Wear Yoke Portion Hole Hole Yoke Unit Figure 5-17 61-10-44 Page 5-60 CHECK Rev. 5 Apr/23...
Page 139 If there is corrosion glass bead cleaning. Refer to product and pitting. product, remove it in accordance the Cleaning chapter of Hartzell with the corrective action repair Propeller Inc. Standard Practices limits. The maximum permitted Manual 202A (61-01-02). If the depth of pitting is 0.005 inch...
Page 140: Pitch Change Knob Bracket (Item 1400)
HARTZELL PROPELLER OVERHAUL MANUAL Dowel Pin (1410) OD Dowel Pin (1410) Height Dowel Pin (1410) Pitch Change Knob Bracket (1400) Pitch Adjust Block Seal Surface OD Pitch Change Knob Pitch Adjust Block Threaded Hole OD Interface Surface Step Height Wear That Causes a Step...
Page 141 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action PITCH CHANGE KNOB BRACKET (Item 1400) Refer to Figure 5-18. If dowel pin removal is not required, apply masking material to protect the dowel pin from penetrant inspection materials.
Page 142 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action PITCH CHANGE KNOB BRACKET, CONTINUED (Item 1400) Refer to Figure 5-18. Measure step height The maximum permitted step If the step height of the wear on the of the wear on the height is 0.013 inch (0.33 mm).
Page 143 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action PITCH CHANGE KNOB BRACKET, CONTINUED (Item 1400) Refer to Figure 5-18. Visually examine the If the pitch change knob The maximum permitted depth of pitch change knob bracket is damaged, measure repair is 0.005 inch (0.12 mm).
Page 144: Pitch Adjust Block
HARTZELL PROPELLER OVERHAUL MANUAL Spacer (1490) O-ring (1500) Needle Rollers (1470) Inner Ring (1460) Width O-ring (1140) Spacer (1450) Outer Ring (1480) ID of the Outer Ring (1480) Pitch Adjust Block Figure 5-19 61-10-44 Page 5-66 CHECK Rev. 5 Apr/23...
Page 145: Block, Pitch Adjust Unit (Item 1430)
HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action BLOCK, PITCH ADJUST UNIT (Item 1430) Refer to Figure 5-19. Make sure that the pitch change block adjust unit has been disassembled in accordance with the instructions in the Disassembly chapter of this manual and that each part has been cleaned using MEK CM106 or MPK CM219.
Page 146 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action BLOCK, PITCH ADJUST UNIT, CONTINUED (Item 1430) Refer to Figure 5-19. Magnetic particle A relevant indication is not If there is a relevant indication, inspect the inner ring permitted.
Page 147 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 5-69 CHECK Rev. 5 Apr/23...
Page 148: Preload Plate Assembly (Item 1540)
HARTZELL PROPELLER OVERHAUL MANUAL Internal Threads Inner Bearing Race OD Preload Plate Assembly Figure 5-20 61-10-44 Page 5-70 CHECK Rev. 5 Apr/23...
Page 149 Refer to for corrosion product. with the corrective action repair the Cleaning chapter of Hartzell limits. Propeller Inc. Standard Practices Manual 202A (61-01-02). If the corrosion product cannot be removed, replace the preload plate assembly.
Page 150 (1550) for corrosion remove it in accordance with the glass bead cleaning. Refer to product, brinelling, corrective action repair limits. the Cleaning chapter of Hartzell pitting, and damage. Propeller Inc. Standard Practices Raised material is not permitted. Manual 202A (61-01-02).
Page 151 Refer to preload plate spindle with the corrective action repair the Cleaning chapter of Hartzell for corrosion product, limits. Propeller Inc. Standard Practices raised material, and Manual 202A (61-01-02).
Page 152 HARTZELL PROPELLER OVERHAUL MANUAL Preload Plate Area "B" Lip Height Area "A" Preload Plate Lip Thickness Lip Thickness Maximum Permitted Depth of Damage in Area "A" in Area "B" 0.060 inch (1.53 mm) 0.013 inch (0.33 mm) or less 0.061 inch (1.55 mm) 0.014 inch (0.35 mm)
Page 153 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action PRELOAD PLATE ASSEMBLY, CONTINUED (Item 1540) Refer to Figure 5-21. Visually examine the The minimum permitted lip Remove any rough edges or preload plate lip for height is 0.040 inch (1.02 mm).
Page 154: Bearing Retaining Ring (Item 1580)
HARTZELL PROPELLER OVERHAUL MANUAL Area "A" 4.550 inches nominal (115.57 mm nominal) 0.540 inch nominal (13.72 mm nominal) B-7071 B-7071 BEARING RETAINING RING BEARING RETAINING RING 0.080 inch nominal (2.03 mm nominal) NOTE: Dimensions are for identification purposes only Bearing Retaining Ring...
Page 155 If there is corrosion glass bead cleaning. Refer to bearing retaining ring product, remove it in accordance the Cleaning chapter of Hartzell for corrosion product with the corrective action repair Propeller Inc. Standard Practices and pitting.
Page 156: Bearing Race (Item 1600, 1620)
HARTZELL PROPELLER OVERHAUL MANUAL Hub Contact Surface Hub-side Race Radial Ball Bearing Groove (dashed lines) Blade-side Race Outer Diameter Blade Contact Surface Cracks Chips Race Mating Surface Chips Bearing Race Figure 5-23 61-10-44 Page 5-78 CHECK Rev. 5 Apr/23...
Page 157 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action BEARING RACE (Item 1600, 1620) Refer to Figure 5-23. Visually examine the Corrosion product is not Remove corrosion product ball bearing groove in permitted. If there is corrosion using glass bead cleaning.
Page 158 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action BEARING RACE, CONTINUED (Item 1600, 1620) Refer to Figure 5-23. Except for the ball Corrosion product is not Remove corrosion product bearing groove, permitted. If there is corrosion using glass bead cleaning.
Page 159 HARTZELL PROPELLER OVERHAUL MANUAL Component Inspection Criteria Table 5-1 Inspect Serviceable Limits Corrective Action BEARING RACE, CONTINUED (Item 1600, 1620) Refer to Figure 5-23. Visually examine the Chips or cracks that are adjacent If there are chips or cracks bearing race for...
Page 160: Synchrophasing Target Bracket (Item 1100)
HARTZELL PROPELLER OVERHAUL MANUAL Synchrophasing Target Bracket Figure 5-24 61-10-44 Page 5-82 CHECK Rev. 5 Apr/23...
Page 161: Synchrophasing Target Bracket
If there is corrosion glass bead cleaning. Refer to bracket for corrosion product, remove it in accordance the Cleaning chapter of Hartzell product and pitting. with the corrective action repair Propeller Inc. Standard Practices limits. The maximum permitted Manual 202A (61-01-02).
Page 162: Balance Weight (Item 1310)
HARTZELL PROPELLER OVERHAUL MANUAL A-2424 A-2424A A-2424-1 Balance Weight Figure 5-25 61-10-44 Page 5-84 CHECK Rev. 5 Apr/23...
Page 163 Remove corrosion glass bead cleaning. Refer to corrosion product. product in accordance with the the Cleaning chapter of Hartzell corrective action instructions. Propeller Inc. Standard Practices Manual 202A (61-01-02). If the corrosion product cannot be removed, replace the balance weight.
Page 164: Counterweight Slug
HARTZELL PROPELLER OVERHAUL MANUAL Counterweight Slug Through Hole Counterweight Slug Figure 5-26 61-10-44 Page 5-86 CHECK Rev. 5 Apr/23...
Page 165: Counterweight Slug B-1933 (Brass Base Metal) (Item 2000)
Before inspection of the B-1933 counterweight slug, remove the cadmium plating by mechanically stripping using glass bead cleaning, in accordance with the Cleaning chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). Visually examine the Cadmium plating must be...
Page 166: Counterweight Slug Through Hole Wear
HARTZELL PROPELLER OVERHAUL MANUAL Counterweight Slug Through Hole Repair less than or equal to 0.020 (0.50 mm) Wear less than or equal to Wear less than or equal to 0.015 (0.38 mm) 0.015 (0.38 mm) Through Hole Through Hole VIEW 1 - Section A-A...
Page 167 After successfully completing the inspections required in paragraphs Y.(1) through Y.(5), cadmium plate to Type II, Class 1, the B-1933 counterweight slug in accordance with the Cadmium Replating chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). Visually examine the...
Page 168 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 5-90 CHECK Rev. 5 Apr/23...
Page 169 HARTZELL PROPELLER OVERHAUL MANUAL REPAIR - CONTENTS 1. General Repair Requirements ................6-3 A. Shot Peening ....................6-3 B. Aluminum and Steel Parts ................6-4 2. Repair/Modification Procedures................6-5 A. Propeller Components (Except for those listed separately in this section) ...6-5 B. Hubs ......................6-5 C. Blades ......................6-5 D. Spinner Assemblies ..................6-5 E. Ice Protection Systems..................6-5 3. Specific Repair Requirements ................6-7 A. Modification of the D-1036 Cylinder to a D-4904 Cylinder ......6-7...
Page 170 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 6-2 REPAIR Rev. 5 Apr/23...
Page 171: General Repair Requirements
WARNING 1: DO NOT ATTEMPT IN THE FIELD ANY REPAIR, REPLACEMENT, REPLATING, RE-ANODIZING, OR RE-SHOT PEENING PROCEDURE NOT SPECIFICALLY AUTHORIZED BY HARTZELL PROPELLER INC. OR NOT SPECIFICALLY REFERRED TO IN HARTZELL PROPELLER INC. MANUALS. CONTACT THE FACTORY FOR GUIDANCE ABOUT THE AIRWORTHINESS OF ANY PART WITH UNUSUAL WEAR OR DAMAGE.
Page 172: Aluminum And Steel Parts
HARTZELL PROPELLER OVERHAUL MANUAL WARNING: FAILURE TO CORRECTLY SHOT PEEN APPLICABLE PROPELLER PARTS MAY CREATE AN UNSAFE CONDITION THAT MAY RESULT IN DEATH, SERIOUS BODILY INJURY, AND/OR SUBSTANTIAL PROPERTY DAMAGE. A QUALITY SHOT PEENING PROCESS IS CRITICAL FOR FLIGHT SAFETY. SHOT PEENING OF PROPELLER PARTS REQUIRES SPECIAL TECHNIQUES, TRAINING, MATERIALS, AND EQUIPMENT.
Page 173: Repair/Modification Procedures
HARTZELL PROPELLER OVERHAUL MANUAL 2. Repair/Modification Procedures (Rev. 2) A. Propeller Components (Except for those listed separately in this section) (1) For repair and modification procedures of propeller components (except for those listed separately in this section), refer to the applicable section in this chapter. B. Hubs (1) Aluminum Hubs: Refer to the Aluminum Hub Overhaul chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). C. Blades (1) Composite Blades: Refer to Hartzell Propeller Inc. Composite Propeller Blade Maintenance Manual 135F (61-13-35). D. Spinner Assemblies (1) Composite Spinners: Refer to Hartzell Propeller Inc. Composite Spinner Maintenance Manual 148 (61-16-48). E. Ice Protection Systems (1) For ice protection systems supplied by Hartzell, refer to Hartzell Propeller Inc. Ice Protection System Manual 180 (30-61-80). (2) For ice protection systems not supplied by Hartzell, refer to the applicable TC or STC holder’s Instructions for Continued Airworthiness (ICA). 61-10-44...
Page 174: Modification Of The D-1036 Cylinder To A D-4904 Cylinder
HARTZELL PROPELLER OVERHAUL MANUAL Tapped holes Modification of the D-1036 Cylinder to a D-4904 Cylinder Figure 6-1 61-10-44 Page 6-6 REPAIR Rev. 5 Apr/23...
Page 175 HARTZELL PROPELLER OVERHAUL MANUAL 3. Specific Repair Requirements A. Modification of the D-1036 Cylinder to a D-4904 Cylinder CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST IN THIS MANUAL FOR IDENTIFICATION OF PROPELLER CRITICAL PARTS.
Page 176 HARTZELL PROPELLER OVERHAUL MANUAL (f) Using a 10-32UNF-GH3 tap, thread each of the three holes with complete threads to a depth of 0.425 inch (10.79 mm). Partial threads are permitted at greater than the 0.425 inch (10.79 mm) depth. (g) Check the threaded depth of the hole. Sufficient threaded depth can be checked by measuring a screw threaded into the hole. (h) Visually examine for burrs or raised edges. CAUTION: DO NOT DAMAGE THE SURROUNDING AREA WHEN REMOVING BURRS. (i) Making sure to not damage surrounding material, remove any burrs or raised edges by lightly sanding or filing the affected edge. (j) Clean the cylinder (200) to remove metal particles. Refer to the Cleaning chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). 61-10-44 Page 6-8 REPAIR Rev. 5 Apr/23...
Page 177 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 6-9 REPAIR Rev. 5 Apr/23...
Page 178 HARTZELL PROPELLER OVERHAUL MANUAL 1.254 ± 0.010 inch (31.85 ± 0.25 mm) Safety Screw Hole Safety Screw Hole 1.250 ± 0.010 inch (31.75 ± 0.25 mm) NOTE: Not drawn to scale. Template for Modification of the D1035 Piston Unit for Safety Screws Figure 6-2 61-10-44 Page 6-10 REPAIR Rev. 5 Apr/23...
Page 179: Modification Of The D-1035 Piston Unit For Safety Screws
HARTZELL PROPELLER OVERHAUL MANUAL B. Modification of the D-1035 Piston Unit for Safety Screws CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST IN THIS MANUAL FOR IDENTIFICATION OF PROPELLER CRITICAL PARTS.
Page 180 HARTZELL PROPELLER OVERHAUL MANUAL CAUTION: DO NOT DAMAGE THE SURROUNDING AREA WHEN REMOVING BURRS. (h) Making sure not to damage surrounding material, remove any burrs or raised edges by lightly sanding or filing the affected edge. (i) Clean the piston unit (110) to remove metal particles. Refer to the Cleaning chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). 61-10-44 Page 6-12 REPAIR Rev. 5 Apr/23...
Page 181: Replacement Of The A-1079 Piston Insert In The D-1035 Piston
HARTZELL PROPELLER OVERHAUL MANUAL C. Replacement of the A-1079 Piston Insert in the D-1035 Piston CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST IN THIS MANUAL FOR IDENTIFICATION OF PROPELLER CRITICAL PARTS.
Page 182 HARTZELL PROPELLER OVERHAUL MANUAL 0.813 ± 0.010 inch (20.63 ± 0.25 mm) R.0.030 ± 0.020 inch (0.76 ± 0.50 mm) 1.800 ± 0.010 inch X 40°±5° 2.625 ± 0.010 inch (45.72 ± 0.25 mm X 40°±5°) (66.67 ± 0.25 mm) .005 1.752 ± 0.001 inch .020 (44.50 ± 0.025 mm) .003 3.100 ± 0.010 inch X 90°±10° (78.74 ± 0.25 mm X 90°±10°) .020 Hub Bore Modification Dimensions Figure 6-3 61-10-44 Page 6-14 REPAIR Rev. 5 Apr/23...
Page 183: Modification Of A D-1066 Hub To Use A 105450 Pitch Change Rod Hub Bushing
HARTZELL PROPELLER OVERHAUL MANUAL D. Modification of a D-1066 Hub to Use a 105450 Pitch Change Rod Hub Bushing CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST IN THIS MANUAL FOR IDENTIFICATION OF PROPELLER CRITICAL PARTS.
Page 184: New Pitch Change Rod Hub Bushing Installation
HARTZELL PROPELLER OVERHAUL MANUAL External Spiral Rod Hub Bushing (550) Retaining Ring (570) O-ring (560) Engine-side of the Hub Unit (500) New Pitch Change Rod Hub Bushing Installation Figure 6-4 61-10-44 Page 6-16 REPAIR Rev. 5 Apr/23...
Page 185 HARTZELL PROPELLER OVERHAUL MANUAL (e) Inspect all newly machined dimensions in accordance with this modification procedure. At this point other overhaul procedures can be performed in accordance with Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02) and this manual. If anodizing is completed before machining, chemical conversion coating must be applied to the machined areas of the hub unit (500) in accordance with the Chromic Acid Anodizing chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). (f) Perform the other overhaul procedures of the hub unit (500) that are specified in Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02) for the D-1066-1 propeller hub unit and in this manual. (4) Installation of the Rod Hub Bushing (550) (a) Using lubricant CM12, lubricate the O-ring (560). (b) Install the O-ring (560) on the outside diameter O-ring groove of the rod hub bushing (550). (c) Using lubricant CM12, lubricate the bore of the hub unit (500) before installing the rod hub bushing (550). (d) Install the rod hub bushing (550) into the hub unit (500) with the external spiral retaining ring groove on the inside of the hub unit. (500). Refer to Figure 6-4. (e) Install the external spiral retaining ring (570) in the groove on the rod hub bushing (550). (f) Using pressure check tools TE441-5 and TE441-3, complete a leak inspection in accordance with the Aluminum Hub Overhaul chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02).
Page 186: Repair Of The Brass Counterweight Slug Mounting Hole
HARTZELL PROPELLER OVERHAUL MANUAL E. Repair of the Brass Counterweight Slug Mounting Hole CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST IN THIS MANUAL FOR...
Page 187 HARTZELL PROPELLER OVERHAUL MANUAL CAUTION: MAKE SURE THAT THE BRASS COUNTERWEIGHT SLUG (2000) IS HELD TIGHTLY IN THE END MILL WITH THE THROUGH HOLE CENTERED UNDER THE END MILL CUTTER. (c) Center the through hole that will be repaired under the end mill cutter and make sure that the brass counterweight slug (2000) is held tightly in the end mill. CAUTION: DO NOT SPOTFACE DEEPER THAN THE MAXIMUM PERMITTED DEPTH. (d) Spotface the brass counterweight slug (2000) to remove wear damage. The maximum permitted depth of repair is 0.020 inch (0.50 mm).
Page 188 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 6-20 REPAIR Rev. 5 Apr/23...
Page 189 HARTZELL PROPELLER OVERHAUL MANUAL ASSEMBLY - CONTENTS 1. General .......................7-5 A. Important Information ..................7-5 B. Ice Protection Systems..................7-6 C. O-rings ......................7-6 D. Blade Bore Plug/Bearing Installation .............7-6 E. Blade Angle Information ................7-6 2. Assembly of HC-A6A-3( ) Propeller Models ............7-9 A.
Page 190 HARTZELL PROPELLER OVERHAUL MANUAL ASSEMBLY - CONTENTS, CONTINUED 3. Counterweight Slug Installation ................7-61 A. General......................7-61 B. Procedure ....................7-61 4. Leak Test ......................7-63 A. Leak Test Procedure ...................7-63 5. Propeller Disassembled for Shipping..............7-64 A. General......................7-64 B. Preparing the Propeller for Shipping ............7-64 6.
Page 191 HARTZELL PROPELLER OVERHAUL MANUAL LIST OF FIGURES Installing the Dowel Pin into the Pitch Change Knob Bracket ... Figure 7-1 ....7-8 Assembling the Pitch Adjust Block Unit ........Figure 7-2 ....7-10 Installing the Pitch Change Knob Bracket and Pitch Adjust Block..............Figure 7-3 ....7-11 Installing the Blade Bearing Balls ..........
Page 192 HARTZELL PROPELLER OVERHAUL MANUAL LIST OF FIGURES, CONTINUED Installing the Nut for Setting Low Pitch Angle ......Figure 7-31 ....7-56 Assembling the Carbon Block ........... Figure 7-32 ....7-58 Installing the Counterweight Slugs ..........Figure 7-33 ....7-60 Hub Leak Test ................Figure 7-34 ....7-62 LIST OF TABLES Pitch Adjust Block Unit Dimensions ...........
Page 193: General
HARTZELL PROPELLER OVERHAUL MANUAL 1. General (Rev. 5) WARNING 1: ANY PART IDENTIFIED IN THIS MANUAL AS AN EXPERIMENTAL OR NON-AVIATION PART MUST NOT BE USED IN AN FAA OR INTERNATIONAL EQUIVALENT TYPE CERTIFICATED PROPELLER. A PART IDENTIFIED AS EXPERIMENTAL OR...
Page 194: Ice Protection Systems
(1) If installing an ice protection system supplied by Hartzell, refer to Hartzell Propeller Inc. Ice Protection System Manual 180 (30-61-80). (2) If installing an ice protection system not supplied by Hartzell, refer to the applicable TC or STC holder’s Instructions for Continued Airworthiness (ICA).
Page 195 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 7-7 ASSEMBLY Rev. 5 Apr/23...
Page 196 HARTZELL PROPELLER OVERHAUL MANUAL Optional configuration Chamfered End of dowel pin (1410) Dowel Pin (1410) Chamfered End Dowel pin exposed Pitch Change Knob Bracket (1400) Installing the Dowel Pin into the Pitch Change Knob Bracket Figure 7-1 61-10-44 Page 7-8 ASSEMBLY...
Page 197: Assembly Of Hc-A6A-3( ) Propeller Models
Hartzell Propeller Inc. Composite Propeller Blade Maintenance Manual 135F (61-13-35). (2) Install the dowel pin (1410), if applicable. Refer to Figure 7-1.
Page 198 (a) Make sure that the surfaces of the butt of the blade and the pitch change knob bracket (1400) are clean and free of oil, dirt, and other foreign materials. Refer to the Cleaning chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02).
Page 199 HARTZELL PROPELLER OVERHAUL MANUAL Making sure that the needle rollers (1470) do not fall to the side, install the inner ring (1460) over the needle bearing rollers (1470) in the ID of the outer ring (1480). (d) Install the remaining 20 needle bearing rollers (1470) between the inner ring (1460) and the outer ring (1480).
Page 200 HARTZELL PROPELLER OVERHAUL MANUAL CAUTION: DO NOT PERMIT ADHESIVE OR PRIMER TO GET ON THE BEARINGS OF THE PITCH ADJUST BLOCK UNIT (1430). (a) Optional recommended primer CM127 application. WARNING: ADHESIVES AND SOLVENTS ARE FLAMMABLE AND TOXIC TO THE SKIN, EYES, AND RESPIRATORY TRACT. SKIN AND EYE PROTECTION ARE REQUIRED.
Page 201 ALL BEARING BALLS (1610) INSTALLED IN A SINGLE BEARING MUST BE OF THE SAME GAUGE. BEARING BALLS (1610) SUPPLIED BY HARTZELL PROPELLER INC. ARE OF THE SAME GAUGE. Put the bearing balls (1610) in the openings of the ball spacer (1630) on the blade-side bearing race (1600).
Page 202 HARTZELL PROPELLER OVERHAUL MANUAL Flange-side of the Cylinder (200) Stop Ring (250) Pitch Stop Shims (240) Holes in the Stop Ring (250) Beveled Side of the Stop Ring (250) Installing the Pitch Stop Shims and Stop Ring Figure 7-6 61-10-44...
Page 203: Rod Cylinder Bushings, Pitch Stop Shims, And Stop Ring Assembly Procedures
"Bonding of A-1186 and A-1799 Delrin ® Bushings into a D-1036 or D-4904 Cylinder" in the Adhesive and Bonding chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02) (2) Installing the Pitch Stop Shims, and Stop Ring - Refer to Figure 7-6 (a) Put the cylinder unit (200) on a padded surface with the flange-side of the cylinder unit (200) pointing upward.
Page 204 HARTZELL PROPELLER OVERHAUL MANUAL Split Keeper (370) Rear Spring Retainer (360) Locally Fabricated Spring Compressor Cylinder/Spring Unit Assembly Figure 7-7 61-10-44 Page 7-16 ASSEMBLY Rev. 5 Apr/23...
Page 205: Cylinder/Spring Unit Assembly Procedures
HARTZELL PROPELLER OVERHAUL MANUAL (e) Align the holes in the stop ring (250) with the holes in the pitch stop shims (240) and with the holes in the cylinder unit (200). Using three 10-32 cap screws (260), attach the stop ring (250) and the pitch stop shims (240) to the cylinder unit (200).
Page 206: Piston Unit
"Bonding of A-1079 Insert into D-1035 Piston" in the Special Adhesive and Bonding Procedures chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). (2) Install the piston O-ring (180) in the groove in the piston unit (110). Refer to Figure 7-8, View A-A.
Page 207 HARTZELL PROPELLER OVERHAUL MANUAL (4) Soak the piston dust seal (170) in aviation grade turbine engine oil until the dust seal (170) is completely saturated. (5) Squeeze the excess oil from the piston dust seal (170). CAUTION: MAKE SURE THAT THE PISTON DUST SEAL (170) IS FREE OF FUZZ.
Page 208 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 7-20 ASSEMBLY Rev. 5 Apr/23...
Page 209: Synchrophasing Target Bracket Installation
HARTZELL PROPELLER OVERHAUL MANUAL E. Synchrophasing Target Bracket Installation (1) If the propeller will have ice protection, install the synchrophasing target bracket (1100) on the spinner bulkhead. (a) Put the synchrophasing target bracket (1100) on the inside of the spinner bulkhead as shown in Figure 7-9.
Page 210: Hub Assembly Procedures
F. Hub Assembly Procedures NOTE: Specific Hartzell Propeller Inc. manuals and service documents are available on the Hartzell website at www.hartzellprop.com. Refer to the Required Publications section in the Introduction chapter of this manual for the identification of these publications. (1) For assembly procedures of the hub unit (500) before following the propeller assembly procedures in this manual, refer to the Aluminum Hub Overhaul chapter of Hartzell Propeller Inc.
Page 211 (500) that are 180 degrees apart, install the engine-side half of the hub unit (500) on the rotatable fixture on the propeller assembly table TE129 or equivalent. Refer to Figure 7-11. (11) Torque the bolts (1200) until tight. (a) For the mounting torque values, refer to Hartzell Propeller Inc. Owner's Manual 154. Engine-side Half of the...
Page 212 HARTZELL PROPELLER OVERHAUL MANUAL Center the preload plate slot at the parting line of the hub unit (500). 90 degrees Centerline of the hub unit (500) NOTE: For illustration purposes, a five bladed propeller is shown and the fork assembly (430) has been removed. Installing a Blade in the Hub Socket...
Page 213: Blade Installation
HARTZELL PROPELLER OVERHAUL MANUAL G. Blade Installation WARNING: ADHESIVES AND SOLVENTS ARE FLAMMABLE AND TOXIC TO THE SKIN, EYES, AND RESPIRATORY TRACT. SKIN AND EYE PROTECTION ARE REQUIRED. AVOID PROLONGED CONTACT AND BREATHING OF VAPORS. USE SOLVENT RESISTANT GLOVES TO MINIMIZE SKIN CONTACT AND WEAR SAFETY GLASSES FOR EYE PROTECTION.
Page 214 HARTZELL PROPELLER OVERHAUL MANUAL Split in outer races of the blade retention bearing 90° Position of the Split in the Blade Retention Bearing Races Figure 7-14 61-10-44 Page 7-26 ASSEMBLY Rev. 5 Apr/23...
Page 215 HARTZELL PROPELLER OVERHAUL MANUAL CAUTION: THE SPLIT IN THE OUTER RACES OF THE BLADE RETENTION BEARING MUST BE AT A 90 DEGREE ANGLE TO THE PARTING SURFACES OF THE HUB UNIT (500). (b) Align the split in the outer races of the blade retention bearing 90 degrees from the parting line of the hub unit (500).
Page 216 HARTZELL PROPELLER OVERHAUL MANUAL (9) Using the guide hub bushings (520), align the halves of the hub unit (500). (10) Making sure the blade O-rings (1640) are in the blade O-ring grooves of the hub unit (500), put the cylinder-side half of the hub unit (500) on the engine-side half of the hub unit (500).
Page 217 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 7-29 ASSEMBLY Rev. 5 Apr/23...
Page 218 HARTZELL PROPELLER OVERHAUL MANUAL Thin Hex Nut (1570) Set Screw (1560) Tightening Preload Plate Hex Head Screw and Jam Nut Figure 7-17 61-10-44 Page 7-30 ASSEMBLY Rev. 5 Apr/23...
Page 219: Setting The Blade Preload
HARTZELL PROPELLER OVERHAUL MANUAL H. Setting the Blade Preload (1) Tighten the preload set screw (1560) until the tip of the blade stops moving vertically. Refer to Figure 7-17 (2) Gently push on the tip of each blade to make sure the blade is correctly seated in the retention socket of the hub unit (500).
Page 220: Installing The Fork
HARTZELL PROPELLER OVERHAUL MANUAL I. Installing the Fork (1) By hand, rotate all of the blades to the same blade angle. (2) Turn all of the pitch adjust block units (1430) so that they are parallel to the surface of the hub unit (500).
Page 221 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 7-33 ASSEMBLY Rev. 5 Apr/23...
Page 222 HARTZELL PROPELLER OVERHAUL MANUAL Cylinder-side End of the Beta Rod 3/8-24, Hex,Self-Locking Nut (800) Beta Spring Retainer (770) Beta Compression Spring (760) Crimped Retaining Ring (750) Beta Rod (720) Assembled Beta Rod Engine-side End of the Beta Rod Assembling the Beta Rods...
Page 223: Assembly And Installation Of The Beta Rods
HARTZELL PROPELLER OVERHAUL MANUAL J. Assembly and Installation of the Beta Rods - Refer to Figure 7-18 (1) Install the two crimped retaining rings (750) in the groove provided for them in the beta rod (720). (a) Using the special tool TE65 (AST-2849), crimp the retaining rings together by compressing them to a 0.550 inch (13.97 mm) maximum outside...
Page 224 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 7-36 ASSEMBLY Rev. 5 Apr/23...
Page 225: Installing The Assembled Cylinder
HARTZELL PROPELLER OVERHAUL MANUAL K. Installing the Assembled Cylinder - Refer to Figure 7-20 (1) Install the cylinder mounting O-ring (400) in the groove provided for it on the top of the cylinder-side half of the hub unit (500). (2) Apply a thin layer of anti-seize compound CM118 to the external threads of the pitch change rod (380) that extend from the pitch change rod/cylinder unit and that will turn into the fork assembly (430).
Page 226 HARTZELL PROPELLER OVERHAUL MANUAL Centerline of Hub Reference Blade Radius Location Measure the distance from the centerline of the hub to the reference blade radius location on the face side of the blade. Reference Blade Radius Location (Face side) Blade Angle...
Page 227: Blade Angle Reference Tape Application (Optional)
HARTZELL PROPELLER OVERHAUL MANUAL L. Blade Angle Reference Tape Application (Optional) Rev. 2 CAUTION: DO NOT CONFUSE REFERENCE BLADE RADIUS WITH BLADE STATION. REFERENCE BLADE RADIUS AND BLADE STATION OF THE SAME NUMBER MAY NOT ALWAYS INDICATE THE SAME LOCATION ON THE BLADE.
Page 228 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 7-40 ASSEMBLY Rev. 5 Apr/23...
Page 229: Checking The Blade-To-Blade Angle Tolerance
HARTZELL PROPELLER OVERHAUL MANUAL M. Checking the Blade-to-Blade Angle Tolerance NOTE: The purpose of checking the blade angles is to verify that the blade angles of all six blades are within 0.2 degree of each other at the reference blade radius.
Page 230 HARTZELL PROPELLER OVERHAUL MANUAL Approximately 2 inches (51 mm) 0.3643 inch (9.253 mm) Greater than 0.4755 inch (12.077 mm) Tool to Change a Pitch Adjust Block Unit Figure 7-23 Part Number "A" B-1034 0.000 B-1034-2 0.002 "A" B-1034-4 0.004 B-1034-6 0.006...
Page 231 HARTZELL PROPELLER OVERHAUL MANUAL (3) Using a protractor, measure to make sure that the angle of each blade within the propeller varies no more than 0.2 degree from highest to lowest angle measurement. (a) If the difference between the highest blade angle and the lowest blade angle is greater than 0.2 degree: Rotate the pitch adjust block unit(s) (1430) 180°...
Page 232 HARTZELL PROPELLER OVERHAUL MANUAL Remeasure the blade-to-blade angle tolerance until the tolerance is achieved on all six blades. NOTE: Each blade has tolerances for blade angles at the various blade stations. The ultimate effects of these tolerances upon vibration during operation are magnified by the blade-to-blade tolerances in the assembled propeller. Maintaining a blade- to-blade tolerance within 0.2 degree at the reference blade radius has been found to be an acceptable limit.
Page 233 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 7-45 ASSEMBLY Rev. 5 Apr/23...
Page 234: Installing The Piston
HARTZELL PROPELLER OVERHAUL MANUAL Self-locking, Hex, 1 1/8 Nut (Piston) (10) Piston (110) Drilled Thin Hex Nuts (780, 790) Installing the Piston Figure 7-25 61-10-44 Page 7-46 ASSEMBLY Rev. 5 Apr/23...
Page 235 HARTZELL PROPELLER OVERHAUL MANUAL N. Installing the Piston - Refer to Figure 7-25 and Figure 7-26 (1) Install the drilled thin hex nuts (780, 790) on each beta rod (720) and turn the drilled thin hex nuts (780, 790) until they touch the flange of the cylinder (200). (2) Align the holes in the flange of the piston (110) with the beta rods (720). (3) Install the piston (110).
Page 236: Setting The Reverse Pitch Blade Angle
HARTZELL PROPELLER OVERHAUL MANUAL O. Setting the Reverse Pitch Blade Angle (1) Refer to the applicable Aircraft Type Certificate Data Sheet or Hartzell Propeller Inc. Application Guide Manual 159 (61-02-59) for the specific reverse pitch blade angle and reference blade radius required. (2) Move the propeller blades to reverse pitch blade angle. (3) Measure the reverse pitch blade angle at the reference blade radius.
Page 237: Installing The Spinner Bulkhead
0.0020 inch (0.0508 mm) within any 4.0 inch (101.5 mm) arc of slip ring travel. If the slip ring run-out is not within tolerance, the slip ring may need to be resurfaced. Refer to Hartzell Propeller Inc. Propeller Ice Protection System Component Maintenance Manual 181 (30-60-81). Hex Head...
Page 238: Installing The Beta Ring
HARTZELL PROPELLER OVERHAUL MANUAL Q. Installing the Beta Ring CAUTION: DO NOT TURN THE BETA RODS (720) MORE THAN TWO TURNS IN SUCCESSION. TURNING A THE BETA ROD (720) MORE THAN TWO TURNS IN SUCCESSION CAN CAUSE WARPING OF THE BETA RING (700) .
Page 239 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 7-51 ASSEMBLY Rev. 5 Apr/23...
Page 240: Beta Ring Height And Run-Out
HARTZELL PROPELLER OVERHAUL MANUAL The maximum permitted total run-out of the beta ring (700) is 0.010 inch (0.25 mm). Flange Beta Ring Height at Full Feather is 2.370 inches +0.005/-0.020 (60.20 +0.13/-0.51 mm) Height Gauge with Dial Indicator Flange Beta Ring Height...
Page 241 HARTZELL PROPELLER OVERHAUL MANUAL R. Beta Ring Height and Run-out CAUTION: THE MAXIMUM PERMITTED TOTAL RUN-OUT OF THE BETA RING (700) IS 0.010 INCH (0.25 mm). (1) Set the height and run-out of the beta ring (700). Refer to Figure 7-29.
Page 242: Setting The Feather Pitch Blade Angle
HARTZELL PROPELLER OVERHAUL MANUAL Piston (110) Drilled Thin Hex Nuts (780, 790) Setting the Feather Pitch Blade Angle Figure 7-30 61-10-44 Page 7-54 ASSEMBLY Rev. 5 Apr/23...
Page 243 HARTZELL PROPELLER OVERHAUL MANUAL S. Setting the Feather Pitch Blade Angle - Refer to Figure 7-30 (1) Refer to the applicable Aircraft Type Certificate Data Sheet or Hartzell Propeller Inc. Application Guide Manual 159 (61-02-59) for the specific feather pitch blade angle and reference blade radius required. (2) Move the propeller to the approximate feather pitch angle. (a) This requires approximately 100 psi (6.8 bars) of pressure. Adjust the pressure as required for feather pitch blade angle.
Page 244 HARTZELL PROPELLER OVERHAUL MANUAL T. Setting the Low Pitch Blade Angle - Refer to Figure 7-31 (1) Refer to the applicable Aircraft Type Certificate Data Sheet or Hartzell Propeller Inc. Application Guide Manual 159 (61-02-59) for the specific low pitch blade angle and reference blade radius required. (2) Move the propeller to the approximate low pitch angle. (a) This requires approximately 100 psi (6.8 bars) of pressure. Adjust the pressure as required for low pitch blade angle.
Page 245 HARTZELL PROPELLER OVERHAUL MANUAL (7) Using a digital protractor TE97 or equivalent, measure the low pitch blade angle. (a) If the low pitch blade angle is not correct, reduce the pressure from the propeller. (b) Turn the self-locking, 3/8-24, hex nut (830) either clockwise to increase the low pitch blade angle or counterclockwise to decrease the low pitch blade angle.
Page 246 HARTZELL PROPELLER OVERHAUL MANUAL Yolk Unit (910) Snap Ring (940) T-head Cotter Pin (950) Carbon Block Unit (930) Clevis Pin (920) Assembling the Carbon Block Figure 7-32 61-10-44 Page 7-58 ASSEMBLY Rev. 5 Apr/23...
Page 247: Carbon Block Reassembly
V. Propeller Lubrication NOTE: Specific Hartzell Propeller Inc. manuals and service documents are available on the Hartzell website at www.hartzellprop.com. Refer to the Required Publications section in the Introduction chapter of this manual for the identification of these publications. (1) Lubricate the propeller in accordance with the Propeller Lubrication chapter of the Hartzell Propeller Inc.
Page 248 HARTZELL PROPELLER OVERHAUL MANUAL Nuts (2020) for Counterweight Slug Installation Bolts (2010) for Counterweight Slug Installation Counterweight Slugs (2000) Installing the Counterweight Slugs Figure 7-33 61-10-44 Page 7-60 ASSEMBLY Rev. 5 Apr/23...
Page 249: Counterweight Slug Installation
A. General (1) For the applicable blade counterweight slugs to be installed on each propeller model, refer to Hartzell Propeller Inc. Application Guide Manual 159 (61-02-59). (2) Use of corrosion protection thin film compounds (a) The steel bolts that attach the brass counterweight slugs to the blade mounted counterweight clamps can experience severe corrosion in the grip area near the bolt head.
Page 250 HARTZELL PROPELLER OVERHAUL MANUAL Leak Detector CM122 Hub Leak Test Figure 7-34 61-10-44 Page 7-62 ASSEMBLY Rev. 5 Apr/23...
Page 251: Leak Test
HARTZELL PROPELLER OVERHAUL MANUAL 4. Leak Test (Rev. 3) A. Leak Test Procedure NOTE: Refer to the Illustrated Parts List chapter of this manual for the location of the lubrication fittings and lubrication plugs (engine-side/cylinder-side) for the applicable propeller model. (1) Install the lubrication fittings (650) in the applicable side of the hub. (a) Tighten each lubrication fitting (650) until finger-tight, then tighten one additional 360 degree turn.
Page 252: Propeller Disassembled For Shipping
During propeller disassembly for shipping, it is not necessary to replace O-rings unless damaged during component installation or removal. NOTE 3: Specific Hartzell Propeller Inc. manuals and service documents are available on the Hartzell Propeller Inc. website at www.hartzellprop.com. Refer to the Required Publications section in the Introduction chapter of this manual for the identification of these publications.
Page 253 (b) Reassemble the propeller without the blade assemblies. Refer to the Assembly section in this chapter. (7) Packing the Propeller and Blades for Shipping (a) Refer to the Packaging and Storage chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02), for packing the propeller and blades for shipping.
Page 254: Reassembly Of A Propeller Disassembled For Shipping
HARTZELL PROPELLER OVERHAUL MANUAL 6. Reassembly of a Propeller Disassembled for Shipping A. Unpacking the Propeller and Blades (1) Carefully unpack the propeller and blades from shipping. (2) Visually inspect all propeller components for shipping damage. If there is damage, refer to the Check chapter of this manual for specific inspection, serviceable limits, and corrective action criteria.
Page 255 HARTZELL PROPELLER OVERHAUL MANUAL FITS AND CLEARANCES - CONTENTS 1. Torque Values .....................8-4 A. Important Information ..................8-4 2. Blade Tolerances ....................8-7 A. Blade Play .....................8-7 B. Blade Track ....................8-7 C. Blade Pitch Tolerance ..................8-7 LIST OF FIGURES Calculating Torque When Using a Torque Wrench Adapter ..Figure 8-1 ....8-3 Blade Play .................
Page 256 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 8-2 Rev. 5 Apr/23 FITS AND CLEARANCES...
Page 257 HARTZELL PROPELLER OVERHAUL MANUAL Torquing Adapter Standard Torque Wrench 1.00 foot 0.50 foot (304.8 mm) (152.4 mm) torque wrench reading (actual torque required) x (torque wrench length) to achieve required (torque wrench length) + (length of adapter) actual torque EXAMPLE:...
Page 258 (2) Use accurate wrenches and professional procedures to make sure of correct tensioning. (3) For the torque values to use when assembling a Hartzell Propeller Inc. propeller, refer to Table 8-1, "Torque Values" in this chapter. (4) When an adapter is used with a torque wrench, use the equation in Figure 8-1 to determine the correct torque value.
Page 259 HARTZELL PROPELLER OVERHAUL MANUAL CAUTION 1: TORQUE VALUES ARE BASED ON NON-LUBRICATED THREADS, UNLESS SPECIFIED IN TABLE 8-1. CAUTION 2: FOR TORQUE READING WHEN USING A TORQUE WRENCH ADAPTER, REFER TO FIGURE 8-1. NOTE: Torque tolerance is ± 10 percent unless otherwise noted.
Page 260 HARTZELL PROPELLER OVERHAUL MANUAL In-and-Out Play Radial Play End Play Blade Play Figure 8-2 61-10-44 Page 8-6 Rev. 5 Apr/23 FITS AND CLEARANCES...
Page 261 HARTZELL PROPELLER OVERHAUL MANUAL 2. Blade Tolerances (Rev. 3) A. Blade Play Limits for blade play are specified below. Refer to Figure 8-2. (a) End Play: Leading Edge to Trailing Edge None permitted Fore-and-Aft (face to camber) None permitted (b) In-and-Out Play...
Page 262 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 8-8 Rev. 5 Apr/23 FITS AND CLEARANCES...
Page 263 HARTZELL PROPELLER OVERHAUL MANUAL SPECIAL TOOLS, FIXTURES, AND EQUIPMENT - CONTENTS 1. Tooling and Facility Requirements ..............9-3 A. Standard Tooling ...................9-3 B. Special Tooling ....................9-3 C. Facilities ......................9-3 61-10-44 Page 9-1 Rev. 5 Apr/23 SPECIAL TOOLS, FIXTURES, AND EQUIPMENT...
Page 264 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 9-2 Rev. 5 Apr/23 SPECIAL TOOLS, FIXTURES, AND EQUIPMENT...
Page 265 HARTZELL PROPELLER OVERHAUL MANUAL 1. Tooling and Facility Requirements (Rev. 1) A. Standard Tooling (1) Propeller repair stations certified by the FAA or international equivalent to overhaul Hartzell Propeller Inc. propellers are expected to possess precision fixtures, tools, and blade tables for blade inspection and repair. (a) Except as specifically required in this manual, locally fabricated tooling is acceptable for most repair and inspection operations. B. Special Tooling (1) Special tooling may be required for procedures in this manual. For further tooling information, refer to Hartzell Propeller Inc. Illustrated Tool and Equipment Manual 165A (61-00-65).
Page 266 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 9-4 Rev. 5 Apr/23 SPECIAL TOOLS, FIXTURES, AND EQUIPMENT...
Page 267 HARTZELL PROPELLER OVERHAUL MANUAL ILLUSTRATED PARTS LIST - CONTENTS 1. Introduction .......................10-3 A. General......................10-3 B. Counterweights/Slugs/Mounting Hardware ..........10-3 C. Spinner Assemblies/Mounting Hardware ............10-3 D. Ice Protection System Components ............10-4 2. Description of Columns..................10-4 A. Fig./Item Number ..................10-4 B. Part Number ....................10-4 C.
Page 268 HARTZELL PROPELLER OVERHAUL MANUAL PROPELLER PARTS LISTS and FIGURES HC-A6A-3( ): Propeller Parts ............ Figure 10-1 ....10-8 Blade Retention Parts ............Figure 10-2 ....10-9 Parts List ......................10-10 SUB-ASSEMBLY PARTS LISTS and FIGURES D-1066 Hub Unit ..............Figure 10A-1 ... 10A-2 Parts List ......................10A-3 D-1066-1 Hub Unit..............
Page 269: Assembly
HARTZELL PROPELLER OVERHAUL MANUAL 1. Introduction (Rev. 1) WARNING: ANY PART IDENTIFIED AS AN EXPERIMENTAL OR NON-AVIATION PART MUST NOT BE USED IN AN FAA OR INTERNATIONAL EQUIVALENT TYPE CERTIFICATED PROPELLER. A PART IDENTIFIED AS EXPERIMENTAL OR NON-AVIATION DOES NOT HAVE FAA OR INTERNATIONAL EQUIVALENT APPROVAL EVEN THOUGH IT MAY STILL SHOW AN AVIATION TC OR PC NUMBER STAMP. USE ONLY THE...
Page 270: Ice Protection System Components
HARTZELL PROPELLER OVERHAUL MANUAL D. Ice Protection System Components (1) Ice protection systems are application specific. Refer to Hartzell Propeller Inc. Application Guide Manual 159 (61-02-59). (a) For components of ice protection systems supplied by Hartzell, refer to Hartzell Propeller Inc. Ice Protection System Manual 180 (30-61-80). (b) For components of ice protection systems not supplied by Hartzell, refer to the applicable TC or STC holder’s Instructions for Continued Airworthiness (ICA). 2. Description of Columns (Rev. 1) A. Fig./Item Number (1) Figure Number refers to the illustration where items appear. Item Numbers refer to the specific part callout in the applicable illustration. (a) Item Numbers that are listed but not shown in the illustration are identified by a dash to the left of the item number. (example: "-800")
Page 271: Description
HARTZELL PROPELLER OVERHAUL MANUAL D. Description (1) This column provides the Hartzell Propeller Inc. description of the part. (2) Bullets and indentations are used to indicate parts that are components of a sub-assembly. (a) For example, a Fork Assembly that is part of a HC-C2YR-1 propeller assembly will have one bullet ( • ) before the description. This indicates that the Fork Assembly is part of the propeller assembly. A Fork Bumper that is part of the Fork Assembly will appear directly below the Fork Assembly with two bullets ( • • ) before the description. This indicates that the Fork Bumper is part of the Fork Assembly - that is part of the Propeller Assembly.
Page 272: Overhaul (O/H)
HARTZELL PROPELLER OVERHAUL MANUAL G. Overhaul (O/H) (1) Designates the parts to be replaced at overhaul. A “Y” identifies the parts that must be replaced at overhaul. NOTE: An overhaul kit may not contain all the parts identified with a "Y" for a particular model propeller. An example of parts that may not be included in the overhaul kit is spinner mounting parts. H. Propeller Critical Part (PCP) (1) This column identifies the Propeller Critical Parts (PCP) that are contained in each propeller model.
Page 273: Vendor Supplied Hardware
4. Vendor Supplied Hardware (Rev. 1) A. Important Information (1) Many O-rings, fasteners, and other vendor supplied hardware listed in Hartzell Propeller Inc. manuals have previously been specified with AN, MS, NAS, or vendor part number. To provide internal controls and procurement flexibility, Hartzell part numbers have been assigned to all O-rings, fasteners, and hardware. Part shipments from Hartzell Propeller Inc. will specify only the Hartzell part numbers. (2) Some O-rings, fasteners, and hardware manufactured in accordance with established industry specifications (certain AN, MS, NAS items) are acceptable for use in Hartzell Propeller Inc. products without additional standards imposed by Hartzell. (a) For a listing of part number interchangeability, refer to the Vendor Cross Reference chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). (b) Where permitted, both the Hartzell part number item and AN, MS, NAS, and other specified vendor number items can be used interchangeably. (c) The Hartzell part number must be used when ordering these parts from Hartzell Propeller Inc. 61-10-44 Page 10-7 ILLUSTRATED PARTS LIST Rev.
Page 274 HARTZELL PROPELLER OVERHAUL MANUAL 1210 1220 1200 560 550 HC-A6A-3( ): Propeller Parts Figure 10-1 61-10-44 Page 10-8 ILLUSTRATED PARTS LIST Rev. 5 Apr/23...
Page 275 HARTZELL PROPELLER OVERHAUL MANUAL 1410 1400 1420 1460 1440 1450 1480 1470 1490 1520 1640 1500 1510 1620 1530 1610 1580 1630 1550 1540 1600 1560 1570 HC-A6A-3( ): Blade Retention Parts Figure 10-2 61-10-44 Page 10-9 ILLUSTRATED PARTS LIST...
Page 276 HARTZELL PROPELLER OVERHAUL MANUAL FIG./ITEM PART DESCRIPTION UPA O/H PCP NUMBER NUMBER CODE HC-A6A-3( ) 10-1 PROPELLER PARTS B-474 • NUT, 1 1/8-12, HEX, SELF-LOCKING REPLACED BY ITEM 10A, PRE SB 163 10A A-2697 • NUT, 1 1/8-12,HEX,THIN,DRILLED USED WITH ITEM 50 AND ITEM 60 REPLACES ITEM 10, POST SB 163...
Page 277 HARTZELL PROPELLER OVERHAUL MANUAL FIG./ITEM PART DESCRIPTION UPA O/H PCP NUMBER NUMBER CODE HC-A6A-3( ), CONTINUED 10-1 PROPELLER PARTS 250 C-4901 • RING, STOP, POST SB 168 USE WITH ITEMS 200A, 240, 260, 370A, AND 380A 260 B-6606-LE16P • SCREW, 10-32, CAP USE WITH ITEMS 200A, 240, 250, 370A, AND 380A...
Page 278 MODEL THE D-1066 HUB MAY BE MODIFIED TO THE D-1066-1 REFER TO THE PROPELLER LUBRICATION HUB TO INCORPORATE THE 105450 PITCH CHANGE CHAPTER OF HARTZELL PROPELLER INC. ROD HUB BUSHING. REFER TO THE REPAIR STANDARD PRACTICES MANUAL 202A (61-01-02). CHAPTER IN THIS MANUAL. - ITEM NOT ILLUSTRATED...
Page 279 HARTZELL PROPELLER OVERHAUL MANUAL FIG./ITEM PART DESCRIPTION UPA O/H PCP NUMBER NUMBER CODE HC-A6A-3( ), CONTINUED 10-1 BETA SYSTEM PARTS 700 C-1055 • RING, BETA 710 B-6616-A-4P • SCREW, SET, 10-32, CRES 720 B-1061 • ROD, BETA -730 A-1065 • BETA SPRING RETAINER, REPLACED BY ITEM 750 -740 A-1064 • BETA SPRING RETAINER, REPLACED BY ITEM 750 750 A-3482 • RING, RETAINING, CRIMPED, REPLACES ITEM 730 AND ITEM 740...
Page 280 HARTZELL PROPELLER OVERHAUL MANUAL FIG./ITEM PART DESCRIPTION UPA O/H PCP NUMBER NUMBER CODE HC-A6A-3( ), CONTINUED 10-1 PROPELLER PARTS 10-2 BLADE RETENTION SYSTEM 1400 B-1033-2 • BRACKET, KNOB, PITCH CHANGE, REPLACED BY ITEM 1400A 1400A B-1033 • BRACKET, KNOB, PITCH CHANGE, REPLACES ITEM 1400 1410 B-6260 • DOWEL PIN, 3/8 INCH 1420 B-6626-LH5 • BOLT, 1/4-28, HEX HEAD (PITCH CHANGE KNOB) -1430 B-1034( ) • BLOCK, PITCH ADJUST - UNIT 1440 C-3317-A1275 • • O-RING...
Page 281 CODE HC-A6A-3( ), CONTINUED 10-1 PROPELLER PARTS COUNTERWEIGHT SLUGS -2000 B-1933 • SLUG, COUNTERWEIGHT COUNTERWEIGHT SLUGS ARE APPLICATION SPECIFIC. REFER TO HARTZELL PROPELLER INC. APPLICATION GUIDE MANUAL 159 (61-02-59) FOR PART NUMBER AND PROPELLER CRITICAL PART (PCP) IDENTIFICATION. COUNTERWEIGHT SLUG MOUNTING HARDWARE -2010 • BOLT -2020 • NUT COUNTERWEIGHT SLUG MOUNTING HARDWARE IS APPLICATION SPECIFIC.
Page 282 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 10-16 ILLUSTRATED PARTS LIST Rev. 5 Apr/23...
Page 283 HARTZELL PROPELLER OVERHAUL MANUAL SUB-ASSEMBLY PARTS LISTS and FIGURES 61-10-44 Page 10A-1 ILLUSTRATED PARTS LIST Rev. 5 Apr/23...
Page 284 HARTZELL PROPELLER OVERHAUL MANUAL D-1066 Hub Unit Figure 10A-1 61-10-44 Page 10A-2 ILLUSTRATED PARTS LIST Rev. 5 Apr/23...
Page 285 HARTZELL PROPELLER OVERHAUL MANUAL FIG./ITEM PART DESCRIPTION UPA O/H PCP NUMBER NUMBER CODE 10A-1 D-1066 HUB UNIT PARTS 500 D-1066 PCP: HUB UNIT, HC-A6A-3 510 B-6045-6-6 • BUSHING, METAL-POLYMER COMP. (CYLINDER SIDE HUB HALF) 520 A-2249 • HUB BUSHING, GUIDE 530 B-6045-6-6 • BUSHING, METAL-POLYMER COMP. (ENGINE SIDE HUB HALF) 540 A-1937 • BUSHING, HUB 580 B-6142 • INSERT 1/4-28, CRES, COILED 590 B-1243 • INSERT 9/16-18, CRES, STAKED...
Page 286 HARTZELL PROPELLER OVERHAUL MANUAL D-1066-1 Hub Unit Figure 10A-2 61-10-44 Page 10A-4 ILLUSTRATED PARTS LIST Rev. 5 Apr/23...
Page 287 HARTZELL PROPELLER OVERHAUL MANUAL FIG./ITEM PART DESCRIPTION UPA O/H PCP NUMBER NUMBER CODE 10A-2 D-1066-1 HUB UNIT PARTS 500 D-1066-1 PCP: HUB UNIT, HC-A6A-3 510 B-6045-6-6 • BUSHING, METAL-POLYMER COMP. (CYLINDER SIDE HUB HALF) 520 A-2249 • HUB BUSHING, GUIDE 530 B-6045-6-6 • BUSHING, METAL-POLYMER COMP. (ENGINE SIDE HUB HALF) 550 105450 • HUB BUSHING, ROD 560 C-3317-129-2 • O-RING 570 A-6153-175 • RING, RETAINING, EXTERNAL SPIRAL...
Page 288 HARTZELL PROPELLER OVERHAUL MANUAL A-3044 Beta Feedback Block Assembly Figure 10A-3 61-10-44 Page 10A-6 ILLUSTRATED PARTS LIST Rev. 5 Apr/23...
Page 289 HARTZELL PROPELLER OVERHAUL MANUAL FIG./ITEM PART DESCRIPTION UPA O/H PCP NUMBER NUMBER CODE 10A-3 A-3044 BETA FEEDBACK BLOCK ASSEMBLY -900 A-3044 BLOCK, BETA FEEDBACK - ASSEMBLY 910 A-3025 • YOKE UNIT 920 B-3844-53 • CLEVIS PIN 930 A-3026 • CARBON BLOCK - UNIT 940 B-3843-25PP • SNAP RING, EXTERNAL 950 A-4543 • COTTER PIN, T HEAD...
Page 290 HARTZELL PROPELLER OVERHAUL MANUAL 1110 1130 1120 1100 Synchrophasing Target Bracket Assembly Figure 10A-4 61-10-44 Page 10A-8 ILLUSTRATED PARTS LIST Rev. 5 Apr/23...
Page 291 HARTZELL PROPELLER OVERHAUL MANUAL FIG./ITEM PART DESCRIPTION UPA O/H PCP NUMBER NUMBER CODE 10A-4 SYNCHROPHASING TARGET BRACKET PARTS 1100 A-3577 BRACKET, TARGET, SYNCHROPHASING 1110 B-3856-247 SCREW, 8-32, FILLISTER HEAD, CRES 1120 B-3837-N832 WASHER, CORROSION RESISTANT 1130 B-6655-08 NUT, HEX, SELF-LOCKING EFFECTIVITY MODEL...
Page 292 HARTZELL PROPELLER OVERHAUL MANUAL (This page is intentionally blank.) 61-10-44 Page 10A-10 ILLUSTRATED PARTS LIST Rev. 5 Apr/23...

Hartzell HC-A6A-3 Series Overhaul Manual

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Description and Operation

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Important Information/Propeller Disassembly

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New Pitch Change Rod Hub Bushing Installation/Repair of the Brass Counterweight Slug Mounting Hole

General/Assembly of Hc-A6A-3( ) Propeller Models

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