Usage:
Start By:
a. Install the steering frame lock pin. Refer to Disassembly and Assembly, "Steering Frame Lock Pin - Remove and Install" for the machine that is being serviced.
b. Release the pressure from the hydraulic system. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release" for the machine that is being serviced.
| NOTICE |
|---|
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment of 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 in Caterpillar machines. Dispose of 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 attachments have been lowered, 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. |
 |
NOTE: Put identification marks on all lines, on all hoses, on all wires and on all tubes for installation purposes. Plug all lines, all hoses and all tubes. This will help prevent fluid loss and this will help to prevent contaminants from entering the system.
1. Disconnect hose assemblies (4) and (5) from the bottom of brake accumulators (1) and (2).
2. Loosen the four bolts and the washers that hold clamps (3) and (6) to the rear frame.
3. Remove one accumulator and then the other. The weight of each accumulator is 22 kg (48 lb).
Installation Procedure
NOTE: Check the condition of all O-ring seals and of all parts. If any components are worn or damaged, use new parts for replacement.
1. Put brake accumulators (1) and (2) in position on the rear frame, as shown. The weight of each accumulator is 22 kg (48 lb).
2. Tighten the four bolts and the washers that hold clamps (3) and (6) to the rear frame.
3. Connect hose assemblies (4) and (5) to the bottom of brake accumulators (1) and (2).
4. Fill the hydraulic tank with oil to the correct level. Refer to Operation and Maintenance Manual for the machine that is being serviced.
5. Purge the air from the service brake. Refer to Systems Operation, Testing and Adjusting, Braking System, "Brake System Air - Purge" for the machine that is being serviced.
End By:
a. Remove the steering frame lock pin. Refer to Disassembly and Assembly, "Steering Frame Lock Pin - Remove and Install" for the machine that is being serviced.