Toro Sand Pro 3040 Service Manual page 109

Test Procedure (continued)
Sand Pro ® 3040 and 5040
20251SL Rev A
Note: The relief valve setting is 22,050 kPa (3,200 psi). An additional
690 kPa (100 psi) is necessary to overcome system charge pressure
before the relief valve opens.
D. Release the traction pedal, open the flow control valve fully, move the
throttle to low speed, and set the key switch to the O
15. If the relief pressure can not be met or is greater than specified, the forward
traction relief valve is damaged and should be repaired or replaced.
16. The under load test flow reading (step 13) should not drop more than 12%
(6 LPM (1.6 GPM)) when compared to the no load test flow reading (step
12). A difference of more than 12% (Under Load > No Load X 0.88) may
indicate the hydraulic pump is worn and should be replaced or repaired;
refer to Piston (traction) Pump (page 5–70)
Pump (page 5–74).
17. After testing:
A. Remove the hydraulic test hose and tester.
B. Remove the caps and connect the hydraulic hoses and tubes.
C. Check and adjust the level of the hydraulic fluid in the hydraulic reservoir;
refer to the traction unit Operator's Manual.
D. Start the engine and check for any hydraulic fluid leaks. Repair hydraulic
leaks if necessary before returning the machine to service.
E. Remove the jack stands and lower the machine to the ground.
Page 5–39 Hydraulic System: Testing the Hydraulic System
position.
FF
or Servicing the Piston (traction)