Repair manual

Troubleshooting the Drive System RD 27
wc_tx000949gb.fm 62
Continued from the previous page.
7. Have an assistant start the engine and move the FWD/REV control to the
forward position until 80 bar (1166 psi) is read on the 207 bar (3000 psi)
pressure gauge. Leave the FWD/REV control in the position that produces 80
bar (1166 psi).
8. With the engine running and the brake disengaged, collect hydraulic oil from the
case drain during a 1-minute period. Make note of the amount of hydraulic oil
collected.
Is more than 300 ml collected?
9. Stop the engine.
10.Test the other drive motor in the same manner.
11.Repeat the tests using the reverse port (d), the machine positioned facing down
the slope, and the FWD/REV control in the reverse position.
If more than 300 ml/min (10 oz./min) is collected in any of the tests, more than the
maximum amount of hydraulic oil is draining and the drive motor should be
replaced.
Result The drive motor integrity has now been tested.
Yes ____ No ____
More than the maximum amount of
hydraulic oil is draining. Stop the engine
and replace the drive motor.
Less than the maximum amount of
hydraulic oil is draining.