Toro Groundsmaster 3280-D Service Manual page 138

Test Procedure (continued)
Hydraulic System: Testing the Hydraulic System
2. With the engine running, raise the cutting deck (or implement) completely.
Using blocking or a hoist, support the cutting deck (or implement) to keep
it in the fully raised position. Shut off the engine.
3. Place a drain pan under the lift cylinder that is to be tested for internal
leakage. Clean the area around the cylinder return hose at the bottom of
the lift cylinder.
g230806
1. Lift cylinder
4. Loosen the hose clamp and disconnect the cylinder return hose from the
bottom of the lift cylinder
connected to the filter adapter on the transmission.
5. Securely plug the open end of the disconnected lift cylinder return hose to
prevent hydraulic fluid leakage or suction of air by the transmission.
6. Remove all hydraulic fluid from drain pan. Ensure that the empty drain pan
remains under the open fitting of the lift cylinder.
7. Start the engine and briefly hold the lift control lever in the R
pressurize the lift cylinders. Shut off the engine.
8. Check to see if any fluid has leaked into the drain pan from the open fitting
of the lift cylinder. If there is any fluid in the drain pan, the lift cylinder has
internal leakage and must be replaced; refer to
9. If the lift cylinder shows no sign of leakage, remove the plug from the return
hose, and install the hose on the lift cylinder fitting. Secure the hose by
tightening the hose clamp.
10. If necessary, repeat steps
11. After testing is completed, remove the support from the cutting deck (or
implement). Start engine and operate lift cylinders through several up and
down cycles. Shut off the engine and check for any leakage.
12. Check hydraulic-fluid level in reservoir (front axle).
Figure 64
2. Return hose
(Figure 64). Leave the other end of the return hose
3 through 9 for the other lift cylinder.
Page 5–54
position to
AISE
Lift Cylinder (page 5–110).
Groundsmaster ® 3280-D/3320
05138SL Rev B