1997/09/15 Caterpillar


New Seal Used In Transmission Transfer Gear Group For Improved Seal Life {3159,3002}

Usage:


771D (6JR),
775D (6KR) Quarry Trucks;
769D (5TR),
773D (7ER) Off-Highway Trucks

SUPPLEMENT: OCTOBER 27, 1997

Service Magazine; September 15, 1997; Page 19; "New Seal Used In Transmission Transfer Gear Group For Improved Seal LIfe".

The picture caption is incorrect. The picture caption should read as follows: (1) 142-8075 Seal. (A) 6Y-8972 Yoke. (B) 3P-8146 Bearing Cage.

In addition, the former seal part number is incorrect. The correct former part number is 6V-5607 Seal.

The 142-8075 Seal effectivity for remanufactured transmissions is:

OR4001 5/9/97 T-5518
OR4002 6/2/97 T-5610
OR4003 6/20/97 T-5677
OR4004 6/2/97 T-5610

--------------- END SUPPLEMENT ---------------

Description of Change: New viton seal with improved wear resistance and improved high temperature properties is now used in some off-highway truck transmission transfer gear groups to increase seal life.


Typical view of viton seal in transmission transfer gear group. Yoke (A.) Cage (B.)

Adaptable To: New 142-8075 Seal (1) directly replaces the former 6V-5407 Seal previously used in 7G-1150 and 9G-9625 Transfer Gear Groups (not serviced). This change is effective with 7G-1140 Transmission Arrangement (not serviced) in 769D (5TR577) Off-Highway Truck and 771D (6JR151) Quarry Truck and with 9G-9624 Transmission Arrangement in 773D (7ER443) Off-Highway Truck and 775D (6KR143) Quarry Truck. This change is adaptable to all previous 769D (5TR1-576), 773D (7ER1-442) Off-Highway Trucks and 771D (6JR1-150), 775D (6KR1-142) Quarry Trucks.

Caterpillar Information System:

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