JLG 67SL Service Manual - Manual (Page 89)

SECTION 4 - HYDRAULICS
3121322 – JLG Lift – 4-13
1
9
11
10
6
8
7
5
3
2
4
12
1. Barrel
2. Piston
3. Setscrew
4. Piston Seal
5. Spacer
6. Cylinder Head
7. O-Ring
8. Head Seal
9. Wiper
10. Rod Seal
11. O-Ring
12. Rod
Figure 4-27. Extension Cylinder Assembly
Table 4-3. Extension Cylinder Specs
Max Working Pressure
3046 psi
(210 bar)
Bore Relief Pressure
1160 psi
(80 bar)
Piston Torque (Apply Loctite 242 prior to tightening)
147.5 lb ft
(200 Nm)
Set screw Torque (Apply Loctite 222 prior to tightening)
14.8 lb ft
(20 Nm)
Max Speed
1.6 ft/sec
(0.5 m/sec)
Max Operating Temperature
-22°F to 176°F
(-30°C to 80°C)