JLG 601S, Service And Maintenance Manual

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SECTION 5 - HYDRAULICS
3120746 – JLG Lift – 5-7
Head and Tapered Bushing Torque Specifications.)
15. After the cylinder has been reassembled, the rod
should be pushed all the way in (fully retracted) prior
to the reinstallation of any holding valve or valves.
16. If applicable, install the cartridge-type holding valve
and fittings in the rod port block, using new o-rings
as applicable. (See Table 5-2, Holding Valve Torque
Specifications).
Table 5-1. Cylinder Head and Tapered Bushing Torque
Specifications
Description
Head Torque
Value (Wet)
Tapered Bushing
Torque Value
(Wet)
Lift Cylinder 240 ft. lbs.
(325 Nm)
30 ft. lbs.
(41 Nm)
Slave Cylinder
30 ft. lbs.
(41 Nm)
5 ft. lbs.
(9 Nm)
Master Cylinder 30 ft. lbs.
(41 Nm)
5 ft. lbs.
(9 Nm)
Telescope
Cylinder 50 ft. lbs.
(68 Nm)
9 ft. lbs.
(12 Nm)
Lockout Cylinder 80 ft. lbs.
(109 Nm)
N/A
Steer Cylinder Piston Nut Torque Specifications
Steer Cylinder
LBS.
NM
150 ft. lbs 204 Nm
Figure 5-12. Rod Assembly Installation
Table 5-2. Holding Valve Torque Specifications
Description Torque Value
SUN - 7/8 HEX M20 X 1.5 THDS. 30-35 ft. lbs.
(41-48 Nm)
SUN - 1 1/8 HEX 1 -14 UNS THDS. 45-50 ft. lbs.
(61-68 Nm)
SUN - 1 1/4 HEX M36 X 2 THDS. 150-160 ft. lbs.
(204-217 Nm)
RACINE - 1 1/8 HEX 1 1/16 - 12 THDS. 50-55 ft. lbs.
(68-75 Nm)
RACINE - 1 3/8 HEX 1 3/16 - 12 THDS. 75-80 ft. lbs.
(102-109 Nm)
RACINE - 1 7/8 HEX 1 5/8 - 12 THDS. 100-110 ft. lbs.
(136-149 Nm)