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M-D Pneumatics
™
Rotary Positive Displacement Truck Blower
Manual 2020 0217 ENG
WARNING: Do Not Operate Before Reading Manual
T850 / T1050 - Standard Weight
OPERATOR'S MANUAL
Copyright © 2017 Tuthill Vacuum & Blower Systems
All rights reserved. Product information and specifi cations subject to change.
Tuthill Vacuum & Blower Systems
tuthillvacuumblower.com
800.825.6937
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Summary of Contents for Tuthill T850
- Page 1 WARNING: Do Not Operate Before Reading Manual T850 / T1050 - Standard Weight OPERATOR’S MANUAL Copyright © 2017 Tuthill Vacuum & Blower Systems All rights reserved. Product information and specifi cations subject to change. Tuthill Vacuum & Blower Systems tuthillvacuumblower.com...
- Page 2 No part of this publication may be reproduced or used in any form by any means – graphic, electronic or mechanical, including photocopying, recording, taping or information storage and retrieval systems – without the written permission of Tuthill Vacuum & Blower Systems. Copyright © 2017 Tuthill Vacuum & Blower Systems...
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Page 3: Table Of Contents
Table of Contents Introduction .................. 1 Safety .................... 2 Graphic Conventions in this Manual ............. 2 Safety Instructions................. 3 Safety Precautions ..............3 Installation ..................5 Safety Checklist ..................5 Specifi cations ..................6 Outline Drawings ................... 7 PTO Selection for Transmission ............. 8 Engine Speed .................. - Page 4 Table of Contents Lubrication ..................11 Filling Procedure ..............11 Operation ..................13 Maintenance ................14 Regular Maintenance ................14 Disassembly and Reassembly ..........15 Disassembly ..................15 Assembly .................... 16 Gear End Assembly ..............16 Drive End Assembly ..............17 Checking Interlobe Clearance ..........
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Page 5: Introduction
INTRODUCTION CONGRATULATIONS on the purchase of a new Tuthill Truck Blower. Please examine the blower for shipping damage, and if any damage is found, report it immediately to the carrier. If the blower is to be installed at a later date, make sure it is stored in a clean, dry location and rotated regularly. -
Page 6: Safety
SAFETY GRAPHIC CONVENTIONS IN THIS OTE: Indicates a procedure, practice, or condition that should be followed in MANUAL order for the equipment to function in the manner intended. The following hazard levels are referenced within this manual: CAUTION Read manual before operation DANGER or bodily harm may result. -
Page 7: Safety Instructions
Safety WARNING WARNING WARNING CAUTION Hearing Keep body and Keep body Do not Protection clothing away from and clothing away touch hot Required machine openings. from drive shaft. surfaces. Safety Precautions SAFETY INSTRUCTIONS For equipment covered specifi cally or indirectly 1. - Page 8 Safety • If you assemble drive line components This manual contains safety instructions. Read, improperly understand and follow this manual. • If you use incompatible drive line components • Get proper training • If you use worn out or damaged drive line •...
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Page 9: Installation
P.T.O. NUMBER DATE INSTALLED P.T.O. RATIO INSPECTED BY Is Tuthill mounting kit used? Check for vibration, mechanical noise, oil leaks and mounting integrity. Is ratio and horsepower correct for PTO? Stop blower, connect blower discharge hose to ... -
Page 10: Specifi Cations
SPECIFICATIONS MAXIMUM MAXIMUM MODEL AIR FLOW RANGE RPM RANGE PRESSURE VACUUM T850 225 – 565 CFM 20 psig 17 inch-Hg 1,000 – 3,000 (527 – 1,700 m³/h) (1.37 bar g) (575 Mbar) T1050 450 – 1,200 CFM... -
Page 11: Outline Drawings
OUTLINE DRAWINGS Dimensions shown are not on a controlled document and as such are subject to change. Certifi ed drawings are available through your local Tuthill Truck Blower Distributor. Dimensions are shown in inches and millimeters. OIL FILL LOCATION HORIZONTAL AIR FLOW 2.28... -
Page 12: Pto Selection For Transmission
Installation PTO SELECTION FOR TRANSMISSION An undersized air fi lter will cause the blower to operate at higher temperatures. This can Blower speed and pressure require adequate cause blower to overheat, causing irreparable horsepower and torque. See Performance Curves damage. on page 10. -
Page 13: Vacuum Valve
Installation VACUUM VALVE To properly protect the blower from Size for proper air fl ow and vacuum rating. overheating when vacuum loading, install a This valve should be located before the blower vacuum valve. inlet fi lter. This valve is normally mounted on the trailer. -
Page 14: Performance Curves
Installation PERFORMANCE CURVES PERFORMANCE CURVES (US) T850 PRESSURE CURVE T1050 PRESSURE CURVE 1350 1000 AIRFLOW BASED UPON INLET AIRFLOW BASED UPON INLET 1200 CONDITIONS OF: 14.7 PSIA & 70° F CONDITIONS OF: 14.7 PSIA & 70° F # PSIG DISCHARGE PRESSURE... -
Page 15: Lubrication
4. Replace the fi ll plugs that were removed in step 1. Never mix oil types or grades in a Tuthill Truck Blower. Mixing lubricants in the blower will result in gear and bearing failure. - Page 16 Always on bottom of blower ** If installing a T850 blower for vertical air fl ow (optional), additional oil than what is included with the blower will be needed for installation. Tuthill PneuLube is available from your authorized Tuthill Truck Blower Distributor.
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Page 17: Operation
OPERATION 1. Inspect the blower mounting, drive line, PTO, WARNING and air fi lter for damage. The blower and accessories will 2. Remove the Camlock dust cap and connect become hot enough to cause the hot air hose. serious skin burns on contact. 3. -
Page 18: Maintenance
MAINTENANCE REGULAR MAINTENANCE A well-designed maintenance program will add years of service to the blower. Check a newly installed blower frequently during the fi rst month of operation, especially lubrication. Check the oil level and add oil as needed. Complete oil changes are recommended every 500 operating hours, or more frequently depending on the type of oil and operating temperature. -
Page 19: Disassembly And Reassembly
DISASSEMBLY AND REASSEMBLY DISASSEMBLY OTE: Before removing any parts, match-mark each component with a punch. This will allow the blower to be reassembled in the same position. Match-mark the covers, end plates, housing, cover extension, and both rotors. 1. Remove oil drain plugs and vent plugs from both ends of the blower. -
Page 20: Assembly
The components in Table 6-1 are available as a DRIVE DRIVEN kit from Tuthill Vacuum & Blower Systems. These components are replaced during a normal blower Figure 6-2 – Correct Positioning of Rotor Keyways for overhaul. These parts, at minimum, should be on Assembly hand prior to assembly. -
Page 21: Drive End Assembly
Disassembly and Reassembly 4. Lay a straightedge across the top of the rotor shafts. Put a depth micrometer on the straightedge and measure the distance to the bearing shoulder on the end plate and the distance to the inner seal housing shoulder. Calculate the difference. -
Page 22: Checking Interlobe Clearance
Disassembly and Reassembly 2. Place the end plate onto the blower housing. Tighten the end plate securely to the housing. Press the seal assembly onto the rotor until the assembly bottoms on the rotor. Continue the process until both seal assemblies are installed. - Page 23 Disassembly and Reassembly 0.003 in. For best results, use feeler gauges 3. Install the pipe plugs and sight glasses to the no larger than 0.006 in. proper location. The direction of fl ow of the blower will determine their location. Example: If AA reading is 0.020 in.
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Page 24: Assembly Clearances
0.013 – 0.018 in. 0.021 – 0.022 in. 0.013 – 0.017 in. 0.006 – 0.010 in. 0.003 – 0.007 in. T850 (0.10 – 0.23 mm) (0.33 – 0.46 mm) (0.53 – 0.56 mm) (0.33 – 0.43 mm) (0.15 – 0.25 mm) (0.08 –... -
Page 25: Special Tool Drawings
SPECIAL TOOL DRAWINGS See Figure 8-1 on the following page. Operator’s Manual 2020 0217 ENG... - Page 26 Special Tool Drawings SEAL & BEARING INSTALLATION TOOL DRAWINGS All dimensions are shown in inches and millimeters. HYDRAULIC PRESS ROD 1/2-13UNC-2A 0.500” MATERIAL: BOTH ENDS 12.7 TOOL STEEL HEAT TREATED TO 40-42 Rc 2.000” 2.000” 50.8 50.8 DRIVE SHAFT SEAL TOOL CLEARANCE SETTING SPACER 3.625 1.200...
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Page 27: Assembly Drawing And Parts List
ASSEMBLY DRAWING AND PARTS LIST ASSEMBLY DRAWING See Rotor Shaft Seal Detail (Item 12) Below ROTOR SHAFT SEAL DETAIL (ITEM 12) STANDARD OPTIONAL PISTON/SLINGER SEAL PISTON/LIP SEAL ASSEMBLY ASSEMBLY (-LS) Operator’s Manual 2020 0217 ENG... -
Page 28: Parts List
Assembly Drawing and Parts List PARTS LIST ITEM ITEM PART DESCRIPTION PART DESCRIPTION Socket Head Cap Drive Rotor Screw Driven Rotor Socket Head Cap Housing Screw End Plate Lock Washer Extension Cover Dowel Pin Drive End Cover Bearing Shims Gear End Cover Drive End Spacer Socket Head Cap Timing Gear Assembly... -
Page 29: Blower Installation Components
Assembly Drawing and Parts List BLOWER INSTALLATION COMPONENTS These components are recommended for installation and sold separately. DESCRIPTION Basic Mounting Kit, Driver Side Basic Mounting Kit, Passenger Side Port Gasket Blower Port Lock Washer Blower Mounting Bolt Blower Mounting Lock Washer Blower Port Bolt Operator’s Manual 2020 0217 ENG... - Page 30 WARRANTY – TRUCK BLOWERS Subject to the terms and conditions hereinafter set forth and set forth in General Terms of Sale, Tuthill Vacuum & Blower Systems (the Seller) warrants products and parts of its manufacture, when shipped, and its work (including installation and startup) when performed, will be of good quality and will be free from defects in material and workmanship.
- Page 31 NOTES: IMPORTANT All blowers manufactured by Tuthill Vacuum & Blower Systems are date-coded at time of shipment. In order to assure you of the full benefits of the product warranty, please complete, tear out and return the product registration card, or register online at tuthillvacuumblower.com.
- Page 32 TUTHILL CORPORATION 4840 West Kearney Street Springfi eld, Missouri USA 65803-8702 O 417.865.8715 800.825.6937 F 417.865.2950 Manual 2020 0217 ENG tuthillvacuumblower.com Copyright © 2017 Tuthill Vacuum & Blower Systems All rights reserved. Product information and specifi cations subject to change.
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Questions and answers
does it matter the rotation of the blower?
Yes, the rotation of the Tuthill T850 blower matters. It must rotate in the correct direction as indicated by an arrow to ensure proper operation.
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