Toro Workman 3000 Series Service Manual page 376

TEST NO. 4: Lift Cylinder Internal Leakage Test.
1. Remove all pressure from cylinder by fully retracting
it (e.g. put hydraulic dump lever in LOWER position).
2. Shut of engine and engage parking brake.
3. Disconnect hose from base end of cylinder and install
a steel plug with o–ring seal in the hose. Clean any re­
maining oil off of cylinder port.
4. Start engine and apply pressure to rod end of cylinder
(e.g., put hydraulic dump lever in LOWER position).
5. If any oil comes out of open cylinder port, cylinder has
an internal leak. Repair or replace cylinder.
6. Reconnect hose disconnected in step 3 after test or
repairs are complete.
Hydraulic System Page 9 – 16
Disconnect and
plug this hose
ANY oil flow or droplets
from this fitting indicates
internal leak
Pressure is applied
to this port
Figure 15
Workman 3000/4000 Series