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TM 10-3930-638-24&P
3-30. HYDRAULIC LIFT SYSTEM MAINTENANCE (cont)
NSN 4910-00-754-0654
e. Lift Cylinder Assembly
This task covers:
a. Removal
d. Inspection/Repair
b. Disassembly
e . R e a s s e m b l y
c. Cleaning
f. Installation/Replacement
PERSONNEL REQUIRED
Two maintenance technicians
INITIAL SETUP
TOOLS
No. 1 Common Organizational Maintenance Tool Kit
Chain Hoists, two, 1/2 ton capacity each
Brass jaw vise and support stand
Hard Wooden Blocks (2), 6 by 6 by 12 inches
Container, six gallon capacity
Insertion sleeve, external taper (FSCM 45225 P/N CAS1704-1)
Insertion sleeve, internal taper (FSCM 45225 P/N CAS1704-2)
Spanner Wrench NSN 5120-00-277-9077 , NSN 5120-00-277-9076
MATERIALS/PARTS
Cleaning solvent P-D-680
Clean cloths
Seal repair kit
Clean hydraulic oil (refer to current lubrication order)
Medium grit emery cloth
EQUIPMENT CONDITION
Paragraph
Condition Description
Vehicle parked on level surface, engine off, parking brake
applied, mast vertical, and carriage assembly raised one
foot from ground and securely blocked. Control valve
control levers operated several times to relieve hydraulic
pressure.
STEP
LOCATION
ITEM
ACTION
REMARKS
REMOVAL
WARNING
Hydraulic system is under pressure. Before disconnecting any hoses,
l i n e s , o r f i t t i n g s , o p e r a t e a l l h y d r a u l i c l i f t c o n t r o l l e v e r s t o
r e l i e v e h y d r a u l i c s y s t e m p r e s s u r e . F a i l u r e t o d o s o c o u l d c a u se
serious injury or death.
1
Lift cylinder a. Two hose
Remove
Para 2-56d, steps 2f thru 2j
pulleys (1)
b. Four hose as- Position out
semblies (2)
of way
Change 2 3-239
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