Toro Sand Pro 3040 Service Manual page 103

Test Procedure (continued)
Sand Pro ® 3040 and 5040
20251SL Rev A
g355127
1. Hydraulic tube
B. Disconnect the hydraulic hose at the hydraulic tube above the front
wheel motor. Use an additional hydraulic hose to install the tester to
the exposed fittings. Make sure the tester is installed in the correct flow
direction (toward the front wheel motor) and the tester flow control valve
is fully open.
C. Block the front wheel with chocks to prevent the wheel from rotating
during testing.
D. Start the engine and run it at low-idle speed. Correct any hydraulic fluid
leaks at the test connections before continuing the test.
E. Set the throttle to the full speed (3,400 to 3,500 RPM). Verify the engine
RPM at the drive hubs or rubber coupling with a non-contact tachometer
(phototach).
F. Make sure hydraulic fluid is at normal operating temperature by operating
the machine for approximately 10 minutes.
G. Ensure the parking brake is disengaged.
H. Sit in the operator seat and slowly push the traction pedal in the forward
direction until 69.0 bar (1000 PSI) is displayed on the tester pressure
gauge.
I. With the front wheel locked (not rotating), the internal leakage for the front
wheel motor will be shown on the flow meter. Record the test results.
J. Release the traction pedal, shut off the engine, and rotate the front wheel
90°. Test again and record the flow meter reading.
K. Release the traction pedal, shut off the engine, and rotate the front wheel
180°. Test again and record the flow meter reading.
L. Use the average of the 3 flow meter readings to judge the wheel motor
performance. Testing of wheel motor leakage in the 3 different wheel
positions will provide the most accurate test results. The flow through
front wheel motor should be less than 4 LPM (1 GPM).
M. Remove the test hydraulic hose and tester, then reconnect the hydraulic
tube and hose above the front wheel.
6. To test either of the rear wheel motors:
Figure 34
2. Hydraulic hose
Page 5–33 Hydraulic System: Testing the Hydraulic System