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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)
20 (cont)
c. Seal (29)
I n s t a ll
Lip outwards
d. Back-up ring
I n s t a ll
Curved side towards O-ring
(28)
(27)
e. O-ring (27)
I n s t a ll
f. Plug (26)
I n s t a ll
21 Inner tube
Two wear rings
I n s t a ll
Side-by-side in groove
(33)
(34)
22 Ring (24)
Wiper (23)
I n s t a ll
Lip outwards
23 End cap (21)
a. Back-up ring
I n s t a ll
Curved side towards O-ring
(20)
(19)
b. O-ring (19)
I n s t a ll
c. Plug (18)
I n s t a ll
d. Bleed screw
I n s t a ll
(17)
24 Outer tube
a. Retaining
I n s t a ll
Be sure ring is seated in its
(35)
ring (37)
groove
CAUTION
Be careful not to damage back-up rings (42 and 44) or O-ring (43)
when performing the following step. Exercise extreme care when
using tools CAS1704-1 and CAS1704-2; they are fragile.
b. Piston assem- Lubricate
Use clean hydraulic oil
bly (38)
and slide
(refer to current lubrica-
on tube
tion order)
(35)
c. Retaining
I n s t a ll
Be cure ring is seated in its
ring (36)
groove
d. Tool CAS1704-1 a. Apply hydraulic oil to all surfaces
NOTE
It may be necessary to remove bottom wear ring (39) when performing
following step.
b. Install on outer tube (35) as shown.
Large end of tool positioned over
piston assembly (38). Rotate tool until
small notch inside of tool covers ears
of retaining ring (37): tool should
then be flush with center groove of
piston assembly (38)
3-246B Change 2
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