STRUCTURALS 5540F/YB5515 SERVICE MANUAL
11-62
Cylinder Removal
1. Position the crane so that the outrigger is over some sort
of a pit. If a pit is not available, an overhead crane of
sufficient capacity can be used to raise the end of the
crane far enough to remove the outrigger. DO NOT use
a jack to raise the crane, unless the crane can be
blocked in position to inhibit the crane from falling when
the outrigger is removed.
2. Engage the parking brake and place chock blocks at the
wheels to inhibit machine movement.
3. Disconnect the hydraulic lines from the cylinder. Cap
and plug the hoses and fittings.
4. Remove the counterbalance valve (Figure 9-129) from
the outrigger cylinder.
5. Remove the cylinder base end pin (See Figure 9-129).
6. Pull the outrigger beam and cylinder from the outrigger
tube in the main frame.
7. Remove the cylinder rod end pin and remove the
cylinder.
Cylinder Installation
1. Insert the outrigger cylinder into the outrigger beam and
then install the rod end pin and retaining rings (See
Figure 9-129).
2. Install the outrigger beam (Figure 9-129) and cylinder
into the outrigger tube on the main frame. Push the
outrigger into tube until the cylinder base end pin can be
installed.
3. Install the cylinder base end pin and retaining rings.
4. Install the counterbalance valve.
5. Connect the two hoses to the outrigger cylinder.
6. Apply a small amount of lubricant to the upper surface of
the outrigger beam.
7. Using the outrigger control, extend and retract the
outrigger several times to remove any air in the hydraulic
lines.
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