BONNET 6N1131 - Caterpillar

Disassembly Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     1P-2321     Combination Puller     1    
B     1P-0510     Driver Group     1    Start By:
Remove the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Remove".
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.
Illustration 1 g01001918
Remove the bolt that holds drive gear (1) to the shaft of body assembly (2) .
Use Tooling (A) in order to remove drive gear (1) from the shaft. Remove the key from the shaft.
Illustration 2 g01001929
Personal injury can result from parts and/or covers under spring pressure.Spring force will be released when covers are removed.Be prepared to hold spring loaded covers as the bolts are loosened.
Remove bolts (9) that hold retainer (8) to body assembly (2) .
Remove retainer (8), spring (7), and bypass valve (6) from the body assembly.
Remove bolts (5) and cover (4) from body assembly (2) .Note: Inspect the bores in the cover. The aluminum cover does not have bearings. If the bores in the cover are damaged, replace the cover with a new part.
Remove idler gear and drive gear (3) from body assembly (2) .
Use Tooling (B) in order to remove the bearings from body assembly (2) .