| Required Tools | ||
|---|---|---|
| Part Number | Description | Qty |
| 6V-9832 | Cap | 2 |
| Container for Measuring | 1 | |
| 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, 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. |
- Stop the engine.
- Release the pressure in the hydraulic system. Refer to Testing and Adjusting, "Hydraulic System Pressure - Release".
- Disconnect case drain hose (1) from tee (4) at the swivel. Place the open end of case drain hose (1) into a container for measuring.
 | |
| Illustration 1 | g00851308 |
Swing motor compartment (1) Case drain hose (4) Tee (5) Case drain hose | |
- Install 6V-9832 Cap on tee (4) at the swivel.
- Disconnect case drain hose (5) from tee (4) at the swivel. Place the open end of case drain hose (5) into a separate container for measuring.
- Install 6V-9832 Cap on tee (4) at the swivel.
- Disconnect electrical connector (3) from solenoid valve (2) for the swing parking brake.
 | |
| Illustration 2 | g00839853 |
Rear swing motor (2) Solenoid valve for swing parking brake (3) Connector | |
- Start the engine.
- Place the machine controls at the following settings: Engine speed dial "10", AEC switch OFF, Digging Mode and Gain/Response (normal). Refer to Testing and Adjusting, "Engine Performance - Test" for engine rpm settings.
 | |
| Illustration 3 | g00726210 |
(C) Display for Digging Mode (D) Key for Digging Mode | |
- Place the hydraulic activation control lever in the UNLOCKED position.
- Increase the hydraulic oil temperature to 55° ± 5°C (131° ± 9°F).
- Move the swing joystick fully for one minute. Measure the case drain oil.
Note: Perform this test procedure three times in order to obtain three measurements. For each test procedure, swing the upper structure to a different position.
Note: Slowly move the swing joystick and make sure that the swing parking brake is activated.
- Stop the engine.
- Connect connector (3) to the solenoid valve for swing parking brake (2) .
| Amount of case drain oil | |||
|---|---|---|---|
| Swing Motor | Relief Valve Setting | New | Rebuild |
| Front | 33900 ± 2000 kPa (4900 ± 290 psi) |
22 L/min (5.8 US gpm) |
25 L/min (6.6 US gpm) |
| Rear | 28700 ± 1000 kPa (4150 ± 145 psi) |
22 L/min (5.8 US gpm) |
25 L/min (6.6 US gpm) |