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Section 5 – Procedures Boom & Jib
5.4 Boom & Jib
5.4-1 Check Wear Pads
1. Ensure the MEWP is on a firm level surface and
is in the stowed position.
2. Activate the function enable switch from the
base control console.
3. Raise the main boom to a comfortable working
height (chest high), and then extend the fly
boom approximately 30 cm (1 ft).
4. Measure the thickness of each wear pad and
replace wear pad if it is less than 11 mm (7/16").
5. If the wear pad is within the specified thickness,
shim it as necessary.
6. Apply grease to the wear pads for smoother
movement.
5.4-2 Shimming Wear Pads
1. Ensure the MEWP is on a firm level surface and
is in the stowed position.
2. Raise the main boom to a comfortable working
height (chest high) and the extend fly boom until
the wear pads are accessible.
3. Loosen the wear pad fasteners.
4. Shim the wear pads as necessary to obtain zero
to 0.8 mm (1/32") clearance and zero drag.
Fly Boom
Shim
1/32” Feeler
Gauge
Wear Pad
5. Extend and retract the fly boom through the
entire range of motion and observe for loose
points.
NOTE
Always maintain squareness between the main and fly
booms.
5.4-3 Cable Carrier Repair
The cable carrier can be repaired by simply using a
screwdriver.
Each crossbar can be snapped off from either side of
the links either by hand or by using a screwdriver as
a lever. New crossbars may be installed by snapping
them onto the link.
Links can be replaced by first removing the upper and
lower crossbars, then unsnapping the old link and
snapping in a new one. Reinstall the crossbars after
the new link is in place.
Crossbars
Links
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