JLG 1850SJ Service Manual - Manual (Page 217)

SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS
3121619 – JLG Lift – 5-47
10. Install setscrew (13) in piston. Torque to 90 in-lb (10 Nm).
INSERTING ROD OFF-CENTER CAN DAMAGE PISTON AND CYLINDER BARREL
SURFACES. USE EXTREME CARE WHEN INSTALLING CYLINDER ROD, HEAD,
AND PISTON.
11. Clamp barrel securely in suitable fixture and support
rod. Insert piston end into barrel cylinder. Do not dam-
age or dislodge piston O-rings or seal rings.
12. Apply ant-seize compound to cylinder head threads.
13. Continue pushing rod into barrel until cylinder head can
be inserted into barrel cylinder.
14. Screw in cylinder head (5) to barrel (2). Torque to 100 ft-
lb (135 Nm).
15. Adjust cylinder head until screw hole aligns with barrel.
Install screw (9).
Figure 5-83. Cylinder Head and Piston Assembly
9
2
5
Figure 5-84. Cylinder Head Installation