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 TM 10-3930-638-24&P
3-30. HYDRAULIC LIFT SYSTEM MAINTENANCE (cont)
d. Rotation Cylinder Assembly (cont).
REMARKS
ACTION
ITEM
LOCATION
STEP
Check for hydrau- Slight weepage of oil is permissible; if
a. Rod end port
21
Steering cylin-
leakage is too great, disassemble cylinder
lic oil leakage
der assembly
and check piston assembly (12) for
damage
Check for hydrau- If leakage is observed, disassemble cylinder
b. Rod end packing
lic oil leakage
and check gland assembly (17) for damage
Shut pump down
22
Test hydraulic
pump
Push rod into cylinder
Disconnect hy-
a. Cylinder port (port
23
Steering cylin-
opposite rod end)
draulic hose and
der assembly
drain oil from
cylinder
Prevents intrusion of dirt
Cap
b. Both cylinder ports
INSTALLATION/REPLACEMENT
Position on
a. Rotation cylinder
24
Mast assem-
carriage mount-
assembly (8)
bly, rear
ing pins
Install
b. Two spacers (7)
and retaining
rings (6)
c. Two 90 degree
Install
fittings (5)
Install
d. 45 degree fitting
(4)
e. 90 degree elbow
Install
(3)
f. Hose fitting (1
Remove caps,
connect and
and 2)
tighten
Perform paragraph
25
Operator's
compartment
2-56f(2), step 12
Refer to current lubrication order
Lubricate
Two lubrication
26
Rotation
fittings
cylinder
3-238
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