Jacobsen HR5111 Service And Repair Instructions page 173

LIFT SYSTEM TEST (See Figure 8R-9)
FRONT MOWER CYLINDERS AND LIFT
VALVE ISOLATION TEST
15. Raise the front mower and block it in the up posi-
tion.
CAUTION
Be certain the area beneath the mower is clear.
16. Disconnect the two return hoses (rod end port)
from the front left cylinder.
17. Remove the blocking from the front mower.
NOTE
DO NOT start engine.
•
If mower(s) come down and no oil leaks from
disconnected tee, the lift valve may be faulty,
repair valve, see Section 8H.
NOTE
A small amount of static oil may leak from open
port of the tee.
•
If oil leaks from the rod end port tee of a left
cylinder or the removed hose of the right cylin-
der, that cylinder leaking is faulty, repair cylin-
der, see Section 8L.
SECTION 8R. INSTRUMENT TEST
Figure 8R-9. Lift System Tests, Front Mower Circuit
8R-9
HYDRAULICS
8R