TUBE ASSEM. 7N8217 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 137-4370 Load Leveler 1
B 138-7576 Link Bracket 4 Start By:
Remove the crankcase guard. Refer to Disassembly and Assembly, "Crankcase Guard - Remove and Install".
Remove the rear drive shaft. Refer to Disassembly and Assembly, "Drive Shaft (Rear) - Remove and Install".
Remove the rear tires and the rims. Refer to Disassembly and Assembly, "Tire and Rim (Rear) - Remove and Install".
Release the pressure in the hydraulic tank for steering and for braking. Refer to Disassembly and Assembly, "System Pressure - Release".
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.
At operating temperature, the steering and brake hydraulic oil tank is hot and under pressure. Hot oil can cause burns.To prevent possible personal injury, release the pressure in the steering and brake hydraulic system before hydraulic lines or components are disconnected or removed.
Note: Put identification marks on all hoses, on all hose assemblies, on all harness assemblies, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. This helps to prevent fluid loss, and this helps to keep contaminants from entering the system.Note: The wood blocks that were placed between the rear axle housing and the rear main frame must remain in place. This will prevent the axle housing from oscillating during the removal procedure.
Drain the oil from the rear oscillating axle housing and from the final drive assemblies into a suitable container. Refer to Operation and Maintenance Manual, "Differential and Final Drive Oil - Change"
Illustration 1 g01445785
Disconnect hose assembly (1), hose assembly (2), and hose assembly (3).
Disconnect clips (4) that secure harness assembly (5) to the rear axle.
Disconnect tube assembly (6).
Illustration 2 g01446145
Disconnect hose assembly (7) from the rear oscillating axle.
Disconnect harness assembly (5) from the temperature sensor. Set harness assembly (5) aside.
Illustration 3 g01445803
Disconnect tube assembly (8) from the rear trunnion support. If necessary, remove tube assembly (9).
Illustration 4 g01446308
Illustration 5 g01446184
Attach Tooling (B) to both ends of rear oscillating axle (10). Attach Tooling (A) and a suitable lifting device to Tooling (B). The weight of rear oscillating axle (10) is approximately 6830 kg (15050 lb).
Illustration 6 g01446312
Remove bolts (12) that secure front trunnion support (11) to the rear main frame.
Illustration 7 g01446314
Remove bolts (13) that secure rear trunnion support (14) to the rear main frame.
Lower rear oscillating axle (10) to the ground or a suitable skid.
Remove the suitable lifting device and Tooling (B).
Pull rear oscillating axle (10) outward by using a suitable towing machine.