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TM 10-3930-638-24&P
3-30. HYDRAULIC LIFT SYSTEM MAINTENANCE (cont)
e. Lift Cylinder Assembly (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
REASSEMBLY (cont)
24 (cont)
e. New seal (40) Separate elastic square ring from seal ring
if not already separated
f . E l a s t ic
a. Liberally apply hydraulic oil
square ring b. Slide over tool CAS1704-1
c. Install in center groove of piston as-
sembly (38). Use finger tips and
slow, even pressure to pull ring over
t o o l u n t i l r i n g f a l l s i n t o p o s i t i o n
in center g r o o ve
g. Seal ring
a. Liberally apply hydraulic oil
b. Slide over tool CAS1704-1
c. Install in center groove of piston assem-
bly (38). Use finger tips and slow,
even pressure to pull seal ring over
tool until ring falls into position in
center groove over elastic square ring
h. Tool CAS1704-1 Remove
From outer tube (35)
i. Bottom wear
I n s t a ll
If removed
ring (39)
24A Outer tube
a. Inner tube
Lubricate
Use clean hydraulic oil (re-
(35)
(33)
and in-
fer to current lubrication
s t a ll
order)
b. Gland assem-
Lubricate,
Use clean hydraulic oil (re-
bly (25)
slide on
fer to current lubrication
inner tube
order). Tighten after
( 3 3 ) , c o n-
metal-to-metal contact
nect to
outer tube
(35) and
tighten
Change 2 3-246C
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