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 TM 10-3930-638-24&P
3-30. HYDRAULIC LIFT SYSTEM MAINTENANCE (cont)
d. Rotation CylinderAssembly (cont).
ITEM
ACTION
REMARKS
LOCATION
STEP
REASSEMBLY (cont)
CAUTION
Use extreme care not to damage rings or seals when performing
following step.
17
Cylinder (27)
a. Rod (24), gland as-
Install as an
sembly (17) and
assembly
piston assembly (12)
Position and
Tighten to 100-150 pounds foot torque
b. Gland assembly (17)
tighten
18
Rotation cylin-
Two lubrication fittings
Install
der assembly
(9)
(8)
TESTING
19
Rotation cylin-
Cylinder port (port op-
a. Connect hydrau-
lic hose to port
der assembly
posite rod end)
(hose must have
a 7/16-20 fitting
on end)
b. Connect other end
of hose to test
hydraulic pump
20
a. Start pump and Rod should extend smoothly from cylinder
Test hydraulic
pump
apply hydraulic
oil under pres-
sure (2000 PSI)
to rotation cyl-
inder assembly
b. Continue operat-
ing pump until
rod is complete-
ly extended
from cylin-
der; hold
until step 21
below is
completed
3-237
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