JLG M4069 ANSI Service Manual - Manual (Page 89)

SECTION 4 - HYDRAULICS
3121122 – JLG Lift – 4-17
NOTE: Torque Nut (12) to 400 ft lbs (542.3 Nm).
Torque Locking Screw (17) to 100 in lbs (11.3 Nm).
Torque Counter Balance Valve (26) and Check Valve
(27) to 30-35 ft. lb. (40-47 Nm).
(1 - 3 not used)
4. Trailer Ball
5. Bolt, 3/8" - 16NC Grade 8
6. Cap
7. Head
8. Rod
9. Barrel
10. Plug
11. (not used)
12. Nut
13. Jack Pad
14. Piston
15. Plate
16. Retainer Ring
17. Locking Screw
18. Wear Ring
19. Guidelock
20. O-Ring
21. O-Ring
22. Wiper Seal 23. Polyseal
24. Hydrolock
25. Spacer Tube
26. Counter Balance Valve
(see note)
27. Check Valve (see note)
Figure 4-15. Leveling Jack Cylinder - USA Built Machines Prior to S/N 0200104829