JLG 1850SJ Service And Maintenance Manual page 339

INSERTING ROD OFF-CENTER CAN DAMAGE PISTON AND CYLINDER BARREL
SURFACES. USE EXTREME CARE WHEN INSTALLING CYLINDER ROD, HEAD,
AND PISTON.
13. Clamp barrel securely and support rod. Insert piston end
into barrel cylinder. Do not damage or dislodge piston
loading O-ring and seal ring.
14. Continue pushing rod into barrel until cylinder head
gland can be inserted into barrel cylinder.
NOTE: Apply JLG Threadlocker (P/N 0100011) or equivalent to
capscrews.
3121619
SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS
15. Secure cylinder head (26) and washer ring (27) with
eight capscrews (28).
27
28
29
Figure 5-89. Rod Assembly Installation
16. Install two counterbalance valves (3) with new O-rings in
valve block. Torque to 50-55 ft-lb (67-75 Nm)
17. If removed, install the cylinder length sensor. See Sec-
tion 5.4, Cylinder Length Sensor.
1
29
5-87