MAULE Sportplane Trigear MXT-7-160 Maintenance Manual
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MAULE Sportplane Trigear MXT-7-160 Maintenance Manual

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FOR
MAULE
MXT-7-160
Sportplane
Trigear
Page 1 of 38
P/N: TLC-MXT-7-160
PERFORMANCE THAT COUNTS!
Rev. E Dated 6-6-19
2099 Georgia Hwy 133 South ~ Moultrie, GA 31788
Tel: 229-985-2045 ~ Fax: 229-890-2402/985-2048
SMM
PC:
www.mauleairinc.com

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Summary of Contents for MAULE Sportplane Trigear MXT-7-160

  • Page 1: Cover

    MAULE MXT-7-160 Sportplane Trigear Page 1 of 38 P/N: TLC-MXT-7-160 PERFORMANCE THAT COUNTS! Rev. E Dated 6-6-19 2099 Georgia Hwy 133 South ~ Moultrie, GA 31788 Tel: 229-985-2045 ~ Fax: 229-890-2402/985-2048 www.mauleairinc.com...

  • Page 2: Foreword

    The Maule MXT-7 was designed and built to give you the airplane you have always wanted. It is fast, comfortable, and easy to fly, yet no light airplane is safer than the Maule MXT-7. Its sturdy construction means you will not have to pamper it to enjoy long years of trouble-free service.

  • Page 3: Table Of Contents

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 TABLE OF CONTENTS ITEM PAGE Cover………………………………………………………… Foreword..............…... Warranty....…..........….… Table of Contents…............Log of Revisions….............….. SECTION I - GENERAL DATA General Description............….. Design Specification...........….. Fluid Capacities and Specification......…. SECTION II - GENERAL MAINTENANCE Cleaning and Care of Aircraft......…..….

  • Page 4: Log Of Revisions

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 LOG OF REVISIONS Description Date page(s) Added Log of revision page iii. 3, 4 Added special maintenance procedures for floatplanes based in 07/19/99 coastal areas or an otherwise corrosive atmosphere. Revised the inspection procedure concerning the horizontal stabi- lizer strut lower attach stub tubes.

  • Page 5: Section I - General Data

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 SECTION I GENERAL DATA GENERAL DESCRIPTION: Type: Four place high wing cabin monoplane. Engine Installation: Single tractor engine in nose of fuselage. Wing: Strut braced, two spar, metal covered, modified USA 35-B airfoil. Fi- berglass wing tips.

  • Page 6: Fluid Capacities And Specification

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 DESIGN SPECIFICATIONS: (Cont’d) Wings: Airfoil Modified USA 35-B Chord 63 inches Incidence +30 minutes 1.2 degrees Dihedral Sweepback None Areas: 173.7 sq.ft. Wing, Aileron and Flaps 14.2 sq.ft. Ailerons (total) 23.9 sq. ft.

  • Page 7: General Maintenance

    Salt water and chemicals act as an electrolyte between dissimilar metals and can start a strong corrosive action over a short period of time. Maule makes every effort to sepa- rate dissimilar metals with primers and coatings during manufacture, but there are some loca- tions (such as rivets in wing skins) where this is impossible.
  • Page 8 MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 INTERIOR (Cont’d) Textile upholstery may be cleaned using a vacuum cleaner. Grease and oil spots on the upholstery should be treated with a spot remover or dry cleaning fluid. Do not use soap and wa- ter on textile materials.

  • Page 9: Inspection Guides

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 INSPECTION GUIDES At 25 Hour Total Time, perform 50 Hour Inspection as described below: At 50 Hour Total Time and every 50 hours thereafter: A. POWER PLANT MECH INSP 1. Perform appropriate inspection as called for in the Textron Lycoming Operator's Manual, p/n 60297-12, Revision No.
  • Page 10 CAUTION: If cable guide tubes are not installed and if backside of kick panel shows evidence of rud- der cable rub and tape has not been placed, comply with Maule SB#14 and #17. 2. Examine all front cockpit electrical connections and wires, fuel lines and fittings, control cable attachments and pulleys for security, leaks, chafing, etc.
  • Page 11 CAUTION: If aircraft is equipped with earlier unsealed struts (before approx. 11/95) or if later sealed struts were replaced "in field" with unsealed struts, comply with Maule Service Bulletin No. 11 as re- quired, (sealed struts, installed after approx. 11/95, are identified by two weld spots located at upper end.
  • Page 12 NOTE: Check top side of rear elevator horn and cable and bottom side of forward elevator horn and cable if yellow color-coding paint is visible. If missing, paint per Maule Service Bulletin No. 30. 13. CAUTION: At inspection hole in tail, visually check the pivoting action at the control cable attachment points over the full range of rudder and elevator travel.
  • Page 13 16. Lubricate door hinges and latches and seat tracks. CAUTION: Carefully inspect all door hinge bolts and nuts for condition and security. If using elastic nuts on door hinges, they must be replaced with castle nuts and cotter pins. Refer to Maule Service Letter No. 61.

  • Page 14: Periodic Maintenance For Me406/406Hm Elt

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 23. Ensure that all applicable Airworthiness Directives and Maule Service Letters and Bulletins that are mandatory have been complied with. PERIODIC MAINTENANCE FOR ME406/406HM ELT FOR THE US In the United States, minimum maintenance requirements for ELTs are stated in FAR 91.207 para-...
  • Page 15 MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 • There is any evidence of corrosion or leakage of any cell or on the small interface board and connector. ELT Battery replacement: If replacing the battery pack, order replacement kit 455-0012 which contains the battery pack (452-6499), replacement gasket, hardware and labels.

  • Page 16: Weighing Procedure

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 WEIGHING PROCEDURE DETAILED CALCULATIONS OF EMPTY WEIGHT AND EMPTY WEIGHT CENTER OF GRAVITY: PROCEDURE: Place each of the wheels on a scale with the airplane in approximate level flight atti- tude. Place a level on the leveling mark and leveling lug on the bottom of the right wing near the root.
  • Page 17 MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 The above empty weight includes unusable fuel of ** lbs. at 24 inches and 8 quarts of oil at minus 36.5 inches, plus all items of equipment as marked on the accompanying Equipment Lists. The Certificated empty weight is the above weight less 16 lbs.

  • Page 18: Rigging Procedures

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 RIGGING PROCEDURES 1. LEVELING: Laterally: The airplane can be accurately leveled laterally using the front spar attach bolts. Turn these two bolts so that a flat on the head is "up". Fabricate two equal length spacers (1½...
  • Page 19 MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 5. AILERONS: Adjust the ailerons to streamline position by placing a straight edge on the bottom of the wing chordwise at the inboard end of the aileron. Then adjust the turnbuckles in the aileron system so the control wheels are centered and there is a gap of zero to ¼...
  • Page 20 MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 9. ELEVATOR TRIM: Elevator trim tab movement is 12° ± 2° up, 38° ± 2° down. If adjustment is needed, it may be done at the turnbuckles located just aft of the trim control. Proper cable tension is 15 to 25 lbs.

  • Page 21: Lubrication

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 LUBRICATION 1. Main wheel and nosewheel bearings - Use aircraft quality bearing grease. 2. Hydraulic brake reservoirs - Use Texaco Aircraft Hydraulic Oil 15 conforming to MIL-H-5606E, or equivalent. 3. Control Column - Apply light coat of graphite base lubricant to aileron balance chain, torque tube and control guide.

  • Page 22: Fabric Repairs

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 FABRIC REPAIRS: (Applicable to Polyurethane paint on Ceconite fabric only) REPAIRS: Small holes and damaged areas can easily be repaired without removing the existing paint topcoat. Trim the damaged area to a rectangular or circular shape.

  • Page 23: Major Component Parts

    The aft fuselage section is covered with Ceconite fabric and standard dope and paint finish as per Maule Specification S-17. Later models are finished with polyurethane or acrylic urethane paint in accordance with Maule Specifications S-40 or S-41, respectively. This fabric need not be pulled or punch tested.

  • Page 24: Movable Surfaces And Controls

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 MOVABLE SURFACES AND CONTROL AILERONS AND FLAPS: The ailerons and flaps are aluminum alloy structures covered with 2024-T3. The aileron control system consists of a chain drive connecting the two control wheels and is attached to the necessary cables which are routed over pulleys through the fuselage and into the wing section to the aileron horns.

  • Page 25: Landing Gear, Wheels And Brakes

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 LANDING GEAR, WHEELS AND BRAKES MAIN LANDING GEAR: The main landing gear consists of separate left and right side heat-treated (7075-T651) alu- minum spring legs, which are bolted to a square tube truss in the bottom of the fuselage struc- ture.

  • Page 26: Hoisting Wheel Views

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 26/39 Rev. E...

  • Page 27: Parking Brake Control Adjustment

    17. Reinstall brake calipers and hubcap. BRAKE CYLINDERS: The hydraulic brakes are actuated by two (2) master cylinders, Maule P/N 4046B, on the left side, and two (2) slave cylinders on the right side. Check hydraulic oil level in master brake cylinders, proper level is no closer than ¼ inch to top of cylinder.
  • Page 28 MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 With rudder pedals in neutral position, set cable housing to 2 ¼” dimension as shown on drawing below. Pull the parking brake knob out until the nicopress comes in contact with the cable housing.

  • Page 29: Nosewheel And Nosewheel Oleo Strut

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 Lack of fluid in reservoir Air will enter system if the reservoir runs dry. In- spect at regular intervals and keep reservoir full at all times. Vent plug stopped up If vent hole in reservoir plug becomes stopped,...

  • Page 30: Power Plant System

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 Installation of the nosewheel is the opposite of removal. Tighten the 5/16 inch elastic stop nuts until the wheel bearings just begin to bind, and then back off until the bearings are just free.
  • Page 31 MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 An extremely close visual inspection of the engine mount should be made to periodically check for cracks, dents, weld failures, etc., of the mount tubular members as well as the gen- eral condition of the mount. At regular intervals, the attaching bolts at the engine should be checked for tightness (required torque value of 40.0-57.5 ft.

  • Page 32: Fuel System

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 FUEL SYSTEM Two (2), 23.8 gallon (or 21.5-gallon) main fuel tanks, mounted in the inboard end of the wings, have front and rear outlets. The fuel lines running from these tanks terminate at the fuel selector valve on the left side kick panel.
  • Page 33 MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 Earlier batteries may be the vented type, with a top manifold vent. A vinyl tube attached to the case vents the battery out the engine air egress. If spillage does occur, the affected area should be cleaned with a liberal application of an acid neutralizing solution such as baking soda and water.

  • Page 34: Electrical Schematic

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 Electrical Schematic (For s/n 17001C-17008C) The wire numbering system has been designed to ease tracing a faulty wire. The circuit tracing code is as shown below in the schematic. Wires are plainly labeled near each end.
  • Page 35 MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 Electrical Schematic (For s/n 17009C & up) The wire numbering system has been designed to ease tracing a faulty wire. The circuit tracing code is as shown below in the schematic. Wires are plainly labeled near each end.
  • Page 36 MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 36/39 Rev. E...

  • Page 37: Door Latch (Old Style) Adjustment Procedure

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 Electrical Schematic The wire numbering system has been designed to ease tracing a faulty wire. The cir- (28 Volt) cuit tracing code is as shown below in the schematic. Wires are plainly labeled near each end.
  • Page 38 MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 Old Style Door Latch Assembly (New improved Door Latch Assemblies are now available and are being installed in present production. Order Part No. 1395X for new improved Door Latch Assembly) 38/39 Rev. E...

  • Page 39: Airworthiness Limitations Section

    MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MXT-7-160 Airworthiness Limitations Section The airframe does not have mandatory life limits or overhaul requirements. See Textron Ly- coming Operator's Manual, p/n 60297-9, Initial Revision or later and the Sensenich Owner’s Man- ual, p/n , Initial Revision or later for their airworthiness limitations.

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