| Required Tools | ||
|---|---|---|
| Part Number | Description | Qty |
| FT-2547 | Track block assembly | 1 |
| 6V-9509 | Face Seal Plug | 1 |
| 6V-8398 | O-Ring Seal | 1 |
| Remote drain hose with an inside diameter of 20 mm (0.79 inch) |
1 | |
| Wrench 29 mm (1.14 inch) |
1 | |
| 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, "AVSpare Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on AVSpare 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".
- Place track block assembly (2) in sprocket (1) in order to block forward left travel. Refer to Illustration 1.
 | |
| Illustration 1 | g00714531 |
Sprocket (left track) (1) Sprocket (2) FT-2547 Track block assembly | |
- Disconnect case drain hose (5) from connector (6). Install plug (3) and seal (4) in the open end of case drain hose (5) .
 | |
| Illustration 2 | g00802985 |
Travel motor (3) 6V-9509 Face seal plug (4) 6V-8398 O-Ring seal (5) Case drain hose (6) Connector (7) Remote drain hose (8) Container for measuring | |
- Connect one end of remote drain hose (7) to connector (6). Place the other end of remote drain hose into the container (8) in order to measure the case drain oil.
- Start the engine.
- Place the engine speed dial at position "10" and AEC switch OFF. Maintain the maximum no-load speed at 1870 ± 50 rpm.
Reference: Refer to Testing and Adjusting, "Engine Performance - Test" for engine rpm settings.
- Increase the hydraulic oil temperature to 55° ± 5°C (131° ± 9°F).
- Move the left travel lever forward fully for one minute.
- Measure the amount of case drain oil.
- Remove track block assembly (2) from sprocket (1) .
- Move the left travel lever in order to reposition the travel motor.
- Place track block assembly (2) in sprocket (1) in order to block forward left travel.
- Repeat Steps 9 through 13 in order to obtain three measurements of case drain oil.
The following values specify the maximum acceptable flow of case drain oil when the main relief valve pressure is set at 34300 ± 490 kPa (4975 ± 70 psi) and the travel crossover relief valves are set at 36800 ± 1470 kPa (5350 ± 215 psi).
- Swing relief pressure ... 24500 ± 980 kPa (3550 ± 140 psi)
- New travel motor ... 15 L/min (4.0 US gpm)
- Rebuilt travel motor ... 18 L/min (4.8 US gpm)
- New travel motor ... 15 L/min (4.0 US gpm)