Toro Groundsmaster 360 Service Manual page 101

Test Procedure
Groundsmaster 360
16225SL Rev C
Perform the charge relief valve pressure test if you identify a traction circuit
problem. This test determines if the traction charge circuit operates correctly.
1. Ensure that the hydraulic fluid is at normal operating temperature.
2. Ensure that the traction drive is correctly adjusted for the N
Before opening the hydraulic system, operate all the hydraulic
controls to release system pressure and avoid injury from the
pressurized hydraulic fluid; refer to
Hydraulic System (page
g036196
3. Park the machine on a level surface, lower the cutting deck, shut off the
engine, and set the parking brake.
4. Read all Warning, Cautions, and precautions listed at the beginning of this
section.
5. Clean the charge-pressure test port on the right side of the transmission
(Figure 44).
6. Connect a 6,900 kPa (1,000 psi) hydraulic-pressure gauge with an attached
hydraulic hose to the transmission charge-pressure port.
7. Start the engine and run it at low-idle speed (1,400 rpm). Check for
hydraulic-fluid leaks from the test connections and correct before continuing
the test.
8. With engine running, press the engine speed switch to full speed (3,000
rpm) position. The pressure gauge reading should be 720 to 930 kPa (105
to 135 psi). Record the test result.
9. If the charge relief pressure specification is not met, consider the following
transmission issues (refer to
A. The transmission charge relief valve is damaged. Repair or replace the
charge-relief valve.
CAUTION
Releasing Pressure from the
4–5).
Figure 44
Servicing the Transmission (page
Page 4–43 Hydraulic System: Testing the Hydraulic System
position.
EUTRAL
4–98)):