Rod assembly installation -52, Cylinder head torque sequence -52, Valve installation -52 – JLG 1850SJ Service Manual User Manual

Page 222

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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

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