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FRAME TILT CYLINDER MAINTENANCE
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TM-10-3930-660-24-2 Truck Forklift; 6 000 lb. Variable Reach Rough Terrain Manual
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DISASSEMBLY - CONTINUED -832450629
TM 10-3930-660-24-2
FRAME TILT CYLINDER MAINTENANCE - CONTINUED
0306 00
DISASSEMBLY
WARNING
Hydraulic oil, under pressure, can remain within cylinder after disconnecting hydraulic hoses. To avoid
severe personal injury, slowly loosen counterbalance valve and allow pressure to escape before removing
valve entirely.
NOTE
Note and mark location of counterbalance valves for use during assembly. The valves are not interchange-
able.
Use a vise with soft jaws to secure cylinder in a horizontal position for disassembly.
1.
Relieve pressure in cylinder by slowly removing two
12
13
12
counterbalance valves (1). Drain residual oil through
valve holes into a suitable container.
2.
Remove and discard back-up rings (2 and 3), two
9
back-up rings (4) and three O-rings (5 thru 7) from
8
each counterbalance valve (1).
11
5
3
2
4
10
6
1
7
409-1389
CAUTION
Do not scratch or damage the wear surface of rod, piston or gland. Follow this precaution to prevent failure
of the cylinder.
3.
Pull rod (8) out approximately 5 in. (12.7 cm) for removal of gland (9).
4.
Place a container under gland (9) to catch oil contained in cylinder
5.
Use a spanner wrench to remove gland (9) from cylinder tube (10). Pull gland (9) out of cylinder far enough to unseat O-
ring (11). Allow oil to drain into container.
CAUTION
Use care when removing rod and piston assembly to prevent wear ring damage. Keep rod in line with cylin-
der tube to prevent binding.
6.
Remove rod (8) and piston assembly from cylinder tube (10).
0306 00-2

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