Haulotte Group xlb-4725a, Operator'S Maintenance Manual, Page: 46 / 118

HAULOTTE GROUP 4 EQUIPMENT MAINTENANCE
46
ANNUAL SERVICE CHECKS (CONTINUED)
Check slew bearing for wear or damage.

Deploy the outriggers using the
AUTO LEVEL
and
EXTEND
buttons on the ground (lower)
control panel. The tires will be slightly off the
ground in this position.

Place a 175 lb (79 kg) load in the platform
and raise the
PRIMARY
boom to the full out
position.
Refer to Figure 4-6.
Figure 4-6. Machine Position for Slew Ring Measurement

Measure the distance between the slew ring
gear and the horizontal plate above, using a
2 in. (50 mm) caliper or bore micrometer.
Refer to Figure 4-7.
Figure 4-7. Slew Ring Position Measurement

Record the measurement.

Rotate the platform 180° and re-record the
measurement.
Refer to Figure 4-8.

If the difference in measurements is greater
than 0.25 in (6.35 mm) the slew ring bearing
should be replaced. Contact Haulotte Group
Customer Service Department: at 1-800-537-
0540 or visit Haulotte Group online at
www.haulotte-usa.com if additional
information is needed.
Figure 4-8. Platform Position After Rotation
GROUND LEVEL
TAKE
MEASUREMENT
HERE
GROUND LEVEL
TAKE
MEASUREMENT
HERE