JLG Skytrak 6036 Service Manual page 147

Section 9. Hydraulic System
15
13
3
1. Cylinder Tube
2. Nut
3. Piston Seal
4. Piston
5. O-ring
6. O-ring
7. Backup Ring
12. If the bushing (12) needs replacement,
support the rod (11) in a soft-jawed vise or
other acceptable holding device. Carefully
press the bushing from the rod.
c. Cleaning
1. Discard all seals and backup rings. Replace
them with a complete new seal kit.
2. Clean all metal parts in an approved cleaning
solvent such as trichlorethylene. Be sure to
clean all cavities and grooves.
d. Inspection, Repair and Replacement
1. Check that the rod (11, Fig. 9.14) is straight. If
the rod is bent, install new rod.
2. Inspect inside of the tube (1) for scoring and
other damage. If there is any damage to the
tube, replace it with a new tube.
Model 6036 S/N 9B0499 and Before
2
1
16
17
7
6
5
4
11
Fig. 9.15 Grille Tilt Cylinder Exploded View
8
10
9
14
12
8. Gland
9. Rod Seal
10. Wiper
11. Rod
12. Bushing
13. Counterbalance Valve
14. Grease Fitting
15. Grease Fitting (90°)
16. O-ring (3)
17. Backup Ring (3)
3. Remove small scratches on piston rod or
inside of tube with emery cloth of very fine grit.
Use the emery cloth with a rotary motion.
4. Remove staking burrs from the nut (2) and
bottom of the piston (4) with a fine file. Clean
parts with trichlorethylene after repair.
e. Assembly
NOTE: Follow general assembly instructions in
paragraph 9.2c.
1. Press the bushing (12, Fig. 9.15) into position
in the eye of the rod (11) so that the grease
groove runout is located toward the center of
the eye.
2. Install new O-ring (6), backup ring (7), wiper
(10), and rod seal (9) on the gland (8) as
shown in Fig. 9.15.
7
6
9 10
MA0562
9-34