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BODY UP LIMIT SOLENOID
The body up limit solenoid valve (11, Figure 8-11) is
located inside the hydraulic cabinet behind the oper-
ators cab. This valve has no serviceable parts except
for O-ring replacement. Should the solenoid valve
malfunction, replace as a unit.
PILOT OPERATED CHECK VALVE
The pilot operated check valve (12, Figure 8-11) is
located inside the hydraulic cabinet behind the oper-
ators cab. This valve has no serviceable parts except
for O-ring replacement. Should the pilot operated
check valve malfunction, replace as a unit.
HOIST CYLINDERS
Removal
Relieve pressure before disconnecting hydraulic
lines. Tighten all connections securely before
applying pressure.
Hydraulic fluid escaping under pressure can
have sufficient force to enter a person's body by
penetrating the skin and cause serious injury and
possibly death if proper medical treatment by a
physician familiar with this type of injury is not
received immediately.
1. Ensure engine and key switch has been OFF
for at least 90 seconds to allow accumulator to
bleed down. Be sure Park Brake is applied.
2. Disconnect the lubrication lines to the upper
and lower bearings of the hoist cylinder.
3. Remove cap screw and lockwashers from
clamps securing the hydraulic hoses to the hoist
cylinder. Cap and plug lines and ports to pre-
vent excessive spillage and contamination.
Secure cylinder to frame to prevent movement
during next step.
L8-14
The hoist cylinder weighs approximately 1000
kgs (2200 lbs). Some means of support is neces-
sary to prevent it from falling or causing injury
when removing from the truck. Use a suitable lift-
ing device that can handle the load safely.
4. At the upper mount, remove self-locking nut (4,
Figure 8-16) from pin retaining cap screw.
Remove cap screw (5). Use a brass drift and
hammer to drive pin (1) from bore of mounting
bracket.
5. Carefully lower cylinder until it lays against the
inside dual tire. The hoist cylinder weighs
approximately 1000 kg (2200 lbs). Attach a suit-
able lifting device that can handle the load
safely to the upper cylinder mounting eye.
FIGURE 8-16. HOIST CYLINDER UPPER MOUNT
1. Pin
2. Retainer Ring
3. Bearing
Hoist Circuit Component Repair
4. Locknut
5. Cap Screw
L08038
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