TM 5-3810-306-34
TELESCOPE CYLINDER ASSEMBLY
Shop Equipment Auto-Maintenance and Repair, FM Suppl No. 1
Tool Outfit Hyd System Test and Repair, 3/4 Ton Trailer Mtd
SUPPLIES:
EQUIPMENT CONDITIONS: Telescope cylinder removed. (Refer to page 15-8.)
DISASSEMBLY:
CAUTION
NOTE
When removing seals and rings,
avoid scratching grooved and gland
Any
maintenance
requiring
surfaces.
disassembly of cylinder should
include replacement of all cylinder
NOTE
seals.
Aligning discarded seals and rings in
1. REMOVE HOLDING VALVE (19) FROM PORT
order of disassembly will facilitate
BLOCK.
installation of new items.
2. REMOVE CYLINDER ROD (18).
3. REMOVE PISTON (4) AND HEAD (11).
a. Remove setscrew (3) and unscrew threading
a. Remove seals (5) and rings (6) from outside of
ring (17) from barrel (2).
piston (4). Remove setscrew (3).
NOTE
b. Remove piston (4) spacer (9) and head (11)
from rod (18).
It is advisable to cover cylinder barrel
c.
Remove preformed packing (8) and back-up
rings (7) from piston rod (18).
WARNING
d. Remove preformed packing (12) and backup
ring (13) from outside of head (11).
Do not use air pressure to remove
cylinder rod assembly. Use only a
e. Remove wear ring (10), buffer seal (14) and rod
source of controlled hydraulic oil
seal (15) from inside of head (11).
pressure, if rod is hard to move.
f.
Remove threaded ring (17). Remove wiper seal
b. Remove cylinder rod (18) with components, from
(16).
cylinder barrel (2).
13-108