JLG 1850SJ Service Manual - Manual (Page 228)

SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS
5-58 – JLG Lift – 3121619
b. Tap each space once; this means the tapered bush-
ing is tapped 3 times as there are 3 spaces between
the capscrews.
14. Retorque the capscrews evenly and progressively in
rotation to 30 ft-lb (41 Nm).
15. Remove cylinder rod from holding fixture.
16. Position cylinder barrel in a suitable holding fixture.
INSERTING ROD OFF-CENTER CAN DAMAGE PISTON AND CYLINDER BARREL
SURFACES. USE EXTREME CARE WHEN INSTALLING CYLINDER ROD, HEAD,
AND PISTON.
17. Clamp barrel clamped securely and support rod. Insert
piston end into barrel. Do not damage or dislodge pis-
ton O-ring and seal ring.
18. Push rod in barrel until cylinder head can be inserted.
19. Install cylinder head (23) in barrel (28) and align marks
made during disassembly.
NOTE: Apply locking primer and JLG Threadlocker (P/N 0100011
to capscrews.
20. Install bracket (26) with two capscrews (27).
21. Install six washers (24) and capscrews (25). Tighten all
capscrews.
22. Install small O-ring (5) and large O-ring (6) in valve block
(2). Install valve block to rod (7) with four capscrews (1).
23. Install two check cartridges (3) and two counterbalance
valves (4) with new O-rings in valve block (2).
Figure 5-106. Seating the Tapered Bearing
23
24
27
26
28
25
Figure 5-107. Rod Assembly And Valve Installation