Test Procedure (continued)
D. A pressure drop of more than 15% indicates a traction circuit leak (e.g., a
leaking transmission check valve, a worn/damaged transmission piston
pump). If charge pressure is good under no load, but the pressure drops
below specification when under a traction load, the transmission piston
pump(s) are probably worn or damaged.
Note:
When a pump is worn or damaged, the charge pump cannot keep
up with internal leakage in the traction circuit.
13. Stop the machine and shut off the engine.
14. Release pressure from the hydraulic system; refer to
from the Hydraulic System (page 4–11)
.
15. Remove the pressure gauge from the transmission charge-pressure test port.
16. Install the plug into the port and torque the plug to
17.7 to 21.5 N∙m (13
to 15 ft-lb)
.
Hydraulic System: Testing the Hydraulic System
Page 4–36
Groundsmaster 7210
16222SL Rev C
Summary of Contents for Groundsmaster 7210
Page 4: ...NOTES Revision History Page 4 Groundsmaster 7210 16222SL Rev C...
Page 32: ...Specifications and Maintenance Special Tools Page 2 16 Groundsmaster 7210 16222SL Rev C...
Page 60: ...Diesel Engine Service and Repairs Page 3 28 Groundsmaster 7210 16222SL Rev C...
Page 196: ...Hydraulic System Service and Repairs Page 4 136 Groundsmaster 7210 16222SL Rev C...
Page 304: ...Chassis Service and Repairs Page 6 42 Groundsmaster 7210 16222SL Rev C...
Page 327: ...Drawing 105 7260 Rev E Sheet 1 16222SL Rev C Page A 3 Hydraulic Schematic g186843...
Page 328: ...Page A 4 16222SL Rev C Drawing 119 4372 Rev C Sheet 1 Electrical Schematic Platform g186842...
Page 329: ...Drawing 119 4377 Rev C Sheet 1 16222SL Rev C Page A 5 Electrical Schematic Engine g186841...
Page 336: ...Page A 12 16222SL Rev C Drawing 119 4386 Rev A Sheet 1 Wire Harness Drawing Cab Power g186851...
Page 342: ......
