BOOM MLC650 SERVICE/MAINTENANCE MANUAL
4-6
Published 09-09-16, Control # 229-09
BOOM AND LUFFING JIB ANGLE
INDICATORS
Angle indicators are mounted on the boom top and the luffing
jib top. Boom and luffing jib angles are calibrated
automatically by the crane’s safety control module (SCM) as
part of the load indicator calibration procedure (see Rated
Capacity Indicator/Limiter Operation Manual for
instructions).
MAST ANGLE SENDING UNIT
The mast angle sending unit was set at the factory and
should not require periodic adjustment. Adjustment is
required if parts are replaced.
Adjusting the Mast Angle
See Figure 4-5 for the following procedure.
1. Lower the mast to the transport position.
2. Place a digital protractor-level (1) on the left mast leg (2)
and note the mast angle.
3. Note the mast angle on the main display Information
screen.
4. Verify the angles noted in step 2
and step 3 are within 1°
of each other.
5. If necessary, loosen the mounting screws and rotate the
angle sensor (3) in the mounting slots until the reading
on the Information screen matches the angle displayed
on the level.
6. Securely tighten the mounting screws.
FIGURE 4-5
Item Description
1 Digital Protractor-Level
2 Left Mast Leg
3 Angle Sensor
To Next Page
Loading...
Need help?
General
