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TM 10-3930-643-34
HYDRAULIC SYSTEM TROUBLESHOOTING AND MAINTENANCE. (cont)
12-9.
Tilt Cylinder. (Sheet 4 of 10)
DISASSEMBLY
170
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
Extend rod (53) half way and drain
remaining hydraulic fluid.
Using a 1/2”
socket and socket wrench
handle, remove six bolts (21), and
washers (22) from retainer (23).
Loosen retainer (23), and ring cord
(24) from cylinder (55). The
retainer (23) and ring cord (24) will
stay loosely on upper portion of rod
(53) for removal later.
Using a brass punch, drive items 25
thru 52 into cylinder (55) to loosen
three
Using
three
rings
Using
lock rings (26).
a pick, remove shim (25) and
lock rings (26). Discard lock
(26) .
hoist and sling, remove items
27 thru 53 as an assembly from
cylinder (55).
Using a 15/16”
socket and socket
wrench handle, remove eight bolts
(28), washers (29), piston (30) and
two hubs (31) from rod (53).
Remove ring (32) seal (33), and
preformed packing (34) from piston
(30).
Discard seal (33) and
preformed packing (34).
Using a scribe, remove ring (35),
preformed packing (36), and ring (37)
from rod (53).
Discard preformed
packing (36).
Remove piston (38).
Remove ring buffer (39), preformed
packing (40), back up ring (41), ring
(42), seal (43) and preformed packing
(44) from piston (38). Discard
preformed packings (40 and 44).
Go to sheet 5
12-68
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