215204 Rev. 1 37
ERVICE
S
Purging cylinders of hydraulic fluid
5 Completely retract the cylinders, then open 2 in. (5 cm).
6 Non-Sideshifting Clamps – Disconnect the supply
hose from the valve OPEN port and plug the hose end.
Install a No. 6 hose to the fitting and place the hose end
in a drain bucket.
Sideshifting Clamps – Disconnect the supply hoses
from the SSR and SSL ports and plug the hose ends.
Install No. 6 hoses to the fittings and place the hose
ends in a drain bucket.
7 All Clamps – Install a No. 4 fitting and hose to the TEST
port on the valve and place the hose end in a drain
bucket.
8 Starting with the bottom cylinder fully retracted,
manually pull the cylinder rod out to remove hydraulic
fluid from the shell. Leave the cylinder fully extended.
Repeat the procedure for each cylinder, progressing to
the next cylinder above.
5.4 Cylinders
5.4-1 Cylinder Service
The cylinders can be serviced with the Clamp mounted on
the truck by using the following procedure. If preliminary
inspection reveals external damage, replace the cylinder
(see Section 5.4-5.
5.4-2 Cylinder Disassembly
NOTE: All four cylinders should be serviced if trouble-
shooting reveals that one cylinder is faulty or leaking.
1 Close the arms completely.
2 Remove the capscrews fastening the cylinder rod
anchor bars to the arms.
3 Slowly power the cylinders outward 3 in. (75 mm) to
expose the rod end and split ring keepers.
4 Slide the rod end inward to remove the split ring
keepers. Slide the rod end off the cylinder rod.
WARNING: Before disconnecting hoses,
relieve pressure in the hydraulic system.
Turn the truck off and move the truck
auxiliary control valves several times in
both directions.
CL0311.ill
CL0420.ill
4
2
6
7
1
Front
5
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