Toro Groundsmaster 360 Service Manual page 104

Test Procedure
Hydraulic System: Testing the Hydraulic System
Perform the traction relief valve pressure test if you identify a traction circuit
problem. This test determines if a transmission relief valve 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
g036058
1. Port A
2. Port B
3. Port C
3. Park the machine on a level surface, lower the cutting deck, shut off the
engine, and do not set the parking brake.
4. Read all Warning, Cautions, and precautions listed at the beginning of this
section.
5. Clean the transmission area around the traction circuit hoses on the top of
the transmission (Figure
6. Determine which traction relief valve is to be tested. Disconnect the hydraulic
hose from the transmission pump outlet fitting to test the relief valve
45 or Figure 46):
Relief Valve to be Tested
Right side forward
Right side reverse
Left side forward
Left side reverse
Note: The pump outlet ports are not identified on the pump housing. Refer to
Figure 46 to identify the pump ports.
CAUTION
Releasing Pressure from the
4–5).
Figure 46
4. Port D
5. Balancing hose
46).
Page 4–46
position.
EUTRAL
(Figure
Pump Outlet
Port A
Port B
Port C
Port D
Groundsmaster 360
16225SL Rev C