Toro Sand Pro 3040 Service Manual page 99

Test Procedure (continued)
g354951
1. Hydraulic fluid cooler
2. Hydraulic hose
Sand Pro ® 3040 and 5040
20251SL Rev A
8. Disconnect the hose from the fitting at the fluid cooler, then install a tee fitting
with the pressure gauge between the fitting and disconnected hose.
9. 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.
10. Attach a heavy chain to the rear of the machine frame and an immovable
object to prevent the machine from moving during testing.
11. Block the front wheel with chocks to prevent the wheel from rotating during
testing.
12. Start the engine and run it at low-idle speed. Correct any hydraulic fluid leaks
at the test connections before continuing the test.
13. 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).
14. Make sure hydraulic fluid is at normal operating temperature by operating the
machine for approximately 10 minutes.
15. Record the reading on the pressure gauge at the fluid cooler (not the pressure
gauge on the flow meter). The charge pressure (without load) should read
approximately 690 kPa (100 psi). If the charge pressure specification is not
met, consider the following:
Figure 32
3. Hydraulic tube
4. Hydraulic hose
Page 5–29 Hydraulic System: Testing the Hydraulic System