1996/12/16 Caterpillar

New Shaft Assembly Used In The Steering Gear Groups To Improve Service Life {4301,4300}

Usage:

776 (14H),
776B (6JC),
776C (2TK),
776D (5ER) Tractors;
771D (6JR) Quarry Trucks;
769C (01X),
769D (5TR),
773B (63W),
773D (7ER),
775D (6KR),
777 (84A),
777B (4YC),
777C (4XJ),
777D (3PR),
783B (8YM),
784B (5RK),
785B (6HK) Off-Highway Trucks

SUPPLEMENT: 03 31 97

Service Magazine; December 16, 1996; Page 8; "New Shaft Assembly Used In The Steering Gear Groups To Improve Service Life" for 776, 776B, 776C, 776D (Tractors) 771D, 769C 769D, 773B, 773D, 775D, 777, 777B, 777C, 777D, 783B, 784B, 785B (Off-Highway Trucks).

This article has been replaced by "New Shaft Assembly Used In The Steering Gear Groups To Improve Service Life" in this issue.

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

Description of Change: A new shaft assembly is used in the steering gear group. The new shaft assembly will improve the service life of the steering gear group.

Adaptable To: The 135-5283 Shaft Assembly shown in Illustration 1 is a direct replacement for the former 8X-1225 Shaft Assembly effective with 776D (5ER76) Tractors, 771D (6JR90) Quarry Trucks, 769D (5TR239), 773D (7ER180), 775D (6KR95), 777D (3PR79), 784B (5RK23), and 785B (6HK590) Off-Highway Trucks. This change is adaptable to all earlier 776C (2TK1-Up), 776D (5ER1-75) Tractors, 771D (6JR1-89) Quarry Trucks, 769C (01X1-Up), 769D (5TR1-238), 773B (63W1-Up), 773D (7ER1-179), 775D (6KR1-94), 777C (4XJ1-Up), 777D (3PR1-78), 783B (8YM1-Up), 784B (5RK1-22), and 785B (6HK1-589) Off-Highway Trucks.

The 135-5386 Shaft Assembly shown in Illustration 2 is a direct replacement for 8X-1226 Shaft Assembly. This change is adaptable to all 776 (14H), 776B (6JC) Tractors; 769C (01X), 777 (84A), and 777B (4YC) Off-Highway Trucks.

NOTE: As shown in Illustration 3, installation of either shaft assembly (1) requires the new 135-5295 Tube (2) which directly replaces the former 8X-2010 Tube.

Steering gear group numbers and model usage are listed in Chart 1 and Chart 2 for each shaft assembly.

Illustration 1. View of 135-5386 Shaft Assembly.