CYLINDER & SEAL GP-BUCKET 2898003 - Caterpillar

Disassembly Procedure
Table 1
Required Tools    
Tool     Part Number     Description     Qty    
A     1P-0520     Driver Group     1    
8B-7548 Puller Assembly     1    
- Bolt (1/2" NC 11" Length)     2    
B     136-1452     Snap Ring Pliers     1    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
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, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Release the hydraulic oil pressure. Refer to Disassembly and Assembly Manual, RENR5555-00, "Hydraulic System Pressure - Release".
Drain the oil from the winch. Refer to Operation and Maintenance Manual, SEBU7479-02, "Winch Oil - Change".
Illustration 1 g00832985
Illustration 2 g00837111
Select one bolt (12) near the top of gear cover (11). Loosen the bolt, but do not remove the bolt. Remove remaining bolts (12) from gear cover (11). Remove bolts (14) from the gear shaft. Remove the loosened bolt (12) and remove gear cover (11). The gear cover weighs approximately 21 kg (47 lb).
Remove O-ring seal (7) and gasket (8) from the gear cover. Inspect the O-ring seal for wear or for damage. Replace the O-ring seal, if necessary.
Remove piston (4), backup ring (5), and O-ring seal (6) from gear cover (11). Inspect the O-ring seal for wear or for damage. Replace the O-ring seal, if necessary.
Remove plug (9) and O-ring seal (10) from gear cover (11). Inspect the O-ring seal for wear or for damage. Replace the O-ring seal, if necessary. Remove relief valve (13) .
Illustration 3 g00837112
Install Tooling (A) in order to compress spring (1) behind freespool clutch (2). Use Tooling (B) to remove ring (3) from the bull gear. Carefully remove freespool clutch (2) from the bull gear and spring (1) from the drum shaft.