Rod assembly installation -52, Cylinder head torque sequence -52, Valve installation -52 – JLG 1850SJ Service Manual User Manual
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SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS
5-52
– JLG Lift –
3121619
NOTE:
Apply locking primer and JLG Threadlocker (P/N 0100011)
or equivalent to capscrew threads.
15.
Install two pad supports (7) to cylinder head (12) and
barrel (2) with eight capscrews (6). Torque capscrews to
20 ft-lb (27 Nm) following sequence shown in Figure 5-
93.
16.
Install each wear pad (5) with two bolts (3), four washers
(4) and two bolts (9).
17.
Install shuttle valve (1) with new O-ring in valve block.
Torque to 20 ft-lb (27 Nm).
18.
Install two counterbalance valves (2) with new O-rings in
valve block. Torque to 25-30 ft-lb (33-40 Nm).
3
4
5
6
7
8
9
22
7
12
2
Figure 5-92. Rod Assembly Installation
1
7
4
6
5
3
8
2
Figure 5-93. Cylinder Head Torque Sequence
2
2
Figure 5-94. Valve Installation