834G Wheel Tractor and 836G Landfill Compactor Machine Systems Caterpillar

Gear Pump (Implement, Pilot and Braking) - Disassemble

Usage:

834G 6GZ

Disassembly Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	156-7100	Slide Hammer	1

Start By:

Remove the gear pump. Refer to Disassembly and Assembly, "Gear Pump (Implement, Pilot and Braking) - Remove".

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat^® products. Dispose of all fluids according to local regulations and mandates.

Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.

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Illustration 1	g00735378

Remove plug (1).
Drain the oil into a suitable container.
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Illustration 2 g00735384
Mark the position of manifold (3) for reassembly purposes.
Remove four bolts (2).
Remove manifold (3).
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Illustration 3 g00735404
Remove O-ring seal (4).
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Illustration 4 g00735407
Mark flange (5), body (6) and body (7) for reassembly purposes.
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Illustration 5 g00735418
Remove eight bolts (8).
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Illustration 6 g00735424
Use a suitable soft hammer in order to remove flange (5).
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Illustration 7 g00735431
Use Tooling (A) in order to remove lip seal (9).
Remove O-ring seal (10).
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Illustration 8 g00735449

Note: Mark plate (13) before removing. This will ensure the proper position for reassembly.
Remove O-ring seal (11), seal (12) and plate (13).
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Illustration 9 g00735460

Note: Mark the location of gear (14) for reassembly purposes.
Remove gear (14) and gear (15).
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Illustration 10 g00735473
Remove plate (16) and hidden seal (17).
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Illustration 11 g00735511
Remove four nuts (18) and the washers.
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Illustration 12 g00735526
Remove body (6).
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Illustration 13 g00735541
Remove gear (19).
Remove eight socket head bolts (20) and the washers.
Remove cover (21).
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Illustration 14 g00735555
Remove O-ring seal (22).
Remove isolation plate (23), backup ring (24), seal (25) and retainer ring (26).
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Illustration 15 g00736287
Remove plate (27).
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Illustration 16 g00736288

Note: Mark the gears for reassembly purposes.
Remove O-ring seal (28).
Remove gear (29) and gear (30).
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Illustration 17 g00736454
Remove retainer ring (35), seal (34), backup ring (33) and isolation plate (32).
Remove plate (31).