JLG Skytrak 6036 Service Manual page 141

Section 9. Hydraulic System
NOTE: It may be necessary to apply heat to
break the bond of the sealant between piston (5),
setscrew (6) and rod (1) before the piston can be
removed. Refer to paragraph 9.2a.
7. Remove setscrew (6) and nylon setscrew (7)
securing piston (5) in place on rod (1).
8. Unscrew the piston from rod. Remove O-ring
(8) from inside of the piston.
9. Slide stop tube (9) and gland (12) from the
rod.
10. Remove O-ring (10), backup ring (11), wiper
(2), rod seal (3), and step seal (17) from the
gland.
1. Rod
2. Wiper
3. Rod Seal
4. Piston Seal
5. Piston
6. Setscrew
7. Setscrew (Nylon)
8. O-ring
9. Stop Tube
10. O-ring
11. Backup Ring
12. Gland
13. Cylinder Tube
14. Counterbalance Valve
15. Pilot Check Valve
16. Plug (2)
17. Step Seal
18. O-ring (6)
19. Backup Ring (6)
Model 6036 S/N 9B0499 and Before
2
3 17
10
12
16
Fig. 9.12 Boom Extend Cylinder Exploded View
11. If necessary, remove the plugs (16) from
bottom inside of the tube (13)
c. Cleaning
1. Discard all seals and backup rings. Replace
with a complete new seal kit.
2. Clean all metal parts in an approved cleaning
solvent such as trichlorethylene. Be sure to
carefully clean all cavities and grooves.
d. Inspection, Repair and Replacement
1. Check that the rod (1, Fig. 9.12) is straight. If
the rod is bent, install new rod.
2
11
1
8
9
10
11
19
15
13
17
3
4
5
7
6
18
18
19
14
MA0532
9-28