GEAR-PUMP 4P5287 - Caterpillar

Start By:
Remove the gear pump. Refer to Disassembly and Assembly, "Gear Pump (Output Transfer Gear) - Remove".
Remove the transmission. Refer to Disassembly and Assembly, "Transmission - Remove".
Remove the transmission oil filter. Refer to Disassembly and Assembly, "Transmission Oil Filter - Remove and Install".
Remove the bypass valve. Refer to Disassembly and Assembly, "Bypass Valve - Remove and Install".
Remove the transmission oil temperature sensor. Refer to Disassembly and Assembly, "Temperature Sensor (Transmission Oil) - Remove and Install".
Remove the speed sensor. Refer to Disassembly and Assembly, "Speed Sensor (Transmission) - Remove and Install".
Remove the torque converter outlet relief valve. Refer to Disassembly and Assembly, "Relief Valve (Torque Converter Outlet) - Remove and Install".
Personal injury or death can result from improper lifting or blocking.When a hoist or jack is used to lift any part or component, stand clear of the area. Be sure the hoist or jack has the correct capacity to lift a component. Install blocks or stands before performance of any work under a heavy component.Approximate weights of the components are shown. Clean all surfaces where parts are to be installed.
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, "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.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Use Tooling (B) and a suitable lifting device in order to position the transmission and torque converter assembly on Tooling (A) with the torque converter assembly downward. The weight of the transmission and the torque converter is approximately 953 kg (2100 lb).
Illustration 1 g01225367
Remove hose assembly (1). Remove hose assembly (2). Remove bolts (3). Use two people in order to remove pump (4) and The O-ring seal. The weight of pump (4) is approximately 36 kg (80 lb). Remove bolts (5). Use two people in order to remove pump (6) and The O-ring seal. The weight of pump (6) is approximately 36 kg (80 lb). Note: Hose assembly (1) and hose assembly (2) are only installed on machines that are equipped with two piston pumps.
Illustration 2 g01225330
Remove tube assembly (7).
Illustration 3 g01225380
Remove plate (8) and the gasket from the planetary transmission housing.
Illustration 4 g01225384
Remove bolt (9) in order to remove tube assembly (10). Note: Tube assembly (10) is removed through the opening in the planetary transmission housing.
Illustration 5 g01225385
Remove O-ring seal (11) from tube assembly (10).
Illustration 6 g01225389
Attach Tooling (B) and a suitable lifting device onto planetary transmission housing (12). The weight of planetary transmission housing (12) is approximately 386 kg (850 lb). Remove bolts (13). Use Tooling (B) and the suitable lifting device in order to separate planetary transmission housing (12) from torque