Use Correct Installation Procedure For Clutch Pilot Bearing In Rear Power Takeoff
Usage:
3406 (90U),
3408 (67U),
3412 (38S) Engines
It is important to use the correct procedure during installation of the clutch pilot bearing in the rear power takeoff used on the above engines. Some failures of the pilot bearings have been caused by installation that was not correct.
Use these steps to install the pilot bearing.
-
- ... With the clutch end play in the direction shown, install the bearing inner race on the shaft. Push the inner race on the shaft with a press until the race is 3.94" (100.1 mm) from the face of the clutch housing (see the illustration).
Installation dimensions for pilot bearing- ... With the crankshaft end play in the direction shown, push the bearing outer race into the flywheel with a press. Install the race until the distance from the flywheel housing face to the race is 2.38" (60.5 mm).
- ... With the clutch end play in the direction shown, install the bearing inner race on the shaft. Push the inner race on the shaft with a press until the race is 3.94" (100.1 mm) from the face of the clutch housing (see the illustration).
When these installation procedures are used, the bearing races will have the correct alignment when the power takeoff clutch is installed.
Caterpillar Information System:
1979/08/08 New Shaft Assembly Used In Governor Group And New Coupling Assembly Used In Drive Group For Governor And Fuel Injection Pump
1979/08/08 List Of Service Publications
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1979/08/08 Inspection Of Oil Filters When Bearing Problems Are Found
1979/08/08 New Tools Are Available For Gasket Removal And Surface Reconditioning
1979/07/04 Engine Front Support Now Machined To Prevent Possible Failure Of The Support Brackets For The Power Takeoff
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1979/07/04 6V183 Gasket Now Available For Parts Service To Use On 5P4150 Or 8S2242 Nozzle Tester
1979/07/04 Longer Life Seal And Washer Available For Certain Water Pumps In Parts Stocks
1979/08/08 6V2010 Polishing Stone Available
1979/08/08 Installation Of Stronger Transmission Mounting Parts
1979/08/08 Changes Made To 8S2243 And 8S4613 Wrenches Used On Fuel Injection Pumps
1979/08/08 New Water Pump Assemblies Use An Improved Seal Assembly
1979/08/22 Why Engines Are Damaged By Fuel Sulfur
1979/08/22 New Governor Housing Assembly Used In Governor And Fuel Injection Pump Group
1979/08/22 New Rear Cover And Gasket Used On Water Pump
1979/08/22 Turbocharger Bearings Are Now Available In More Different Sizes For Better Turbocharger Reconditioning
1979/08/22 When Timing The Engine, Be Sure The Timing Bolt Is Installed In The Correct Hole In The Flywheel
1979/08/22 New Seal Used Under Retaining Bushing For Fuel Injection Pump Bonnet
1979/08/22 Exhaust Manifold And Air Lines Groups Changed To Prevent Exhaust Leakage
1979/08/22 Only One Dowel Pin Is Now Used To Hold The Thrust Bearing In The Correct Position