| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A(1) | 9U-7536 | Lift Stand | 2 |
| 447-0910 | Electric Hydraulic Pump Gp (115V) | 1 | |
| 447-0911 | Electric Hydraulic Pump Gp (230V) | 1 | |
| A1 | OR | ||
| 504-9826 | Lift Gp (60Hz)(2) | 2 | |
| 504-9827 | Lift Gp (50Hz)(3) | 2 | |
| (1) | Use Tooling (A) or (A1) based on requirements. |
| (2) | Operating-Voltage (380-500V) |
| (3) | Operating-Voltage (180-300V) |
Start By:
- Remove the front wheels.
- Remove both steering cylinders.
- Remove the wheel lean bar.
 |
|
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. |
| 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. |
| NOTICE |
|---|
|
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
- Release the system pressure. Refer to Operation and Maintenance Manual, "System Pressure - Release".
- Drain hydraulic oil into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change".
Show/hide table
Illustration 1 g01412434 For Tooling (A) - Position Tooling (A) as shown.
- Use Tooling (A) to support drawbar (1) and the front axle assembly.
Show/hide table
Illustration 2 g06407286 For Tooling (A1) - Position Tooling (A1) as shown. Refer to Tool Operating Manual, NEHS1328, "Lift Group (Stand - 60 Ton)" for more information on Tooling (A1).
- Use Tooling (A1) to support drawbar (1) and the front axle assembly.
Show/hide table
Illustration 3 g01412439 - Remove clamp assemblies (2) and position hose assemblies (3) out of the way.
- Disconnect hose assemblies (4) and position the hose assemblies out of the way.
Show/hide table
Illustration 4 g01412707 - Disconnect hose assemblies (5).
Show/hide table
Illustration 5 g01412709 - Disconnect hose assemblies (6).
Show/hide table
Illustration 6 g01412713 - Disconnect harness assembly (7).
Show/hide table
Illustration 7 g01412743 - Attach a suitable lifting device to each side of front axle assembly (8). The weight of front axle assembly (8) is approximately
953 kg (2100 lb) .Show/hide table
Illustration 8 g01412777 - Remove bolts (10) and locking plate (9).
- Remove pin (11) from front axle assembly (8).
Show/hide table
Illustration 9 g01412901 - Use a suitable lifting device to lower front axle assembly (8) onto suitable cribbing.
Show/hide table
Illustration 10 g01412926 Note: Note the position of each washer (12) for use in the assembly procedure.
- Remove washers (12).
Show/hide table
Illustration 11 g01412939 - Remove lip seal (13) and bearing (14). Repeat this process for the opposite side.
