BOOM 16000 SERVICE/MAINTENANCE MANUAL
4-8
Published 05-09-17, Control # 014-28
BOOM AND LUFFING JIB ANGLE
INDICATOR CALIBRATION
Angle indicator sensors are located inside the node
controllers mounted on the boom top and on the luffing jib
top (see Figure 4-6
). The boom and luffing jib angles are
calibrated automatically by the crane’s programmable
controller as part of the load indicator calibration procedure
(see RCL Operation Manual for instructions).
MAST ANGLE ADJUSTMENT
See Figure 4-6 for the following procedure.
Mast Angle Sensor
The mast angle sending unit (Figure 4-6) houses a solid-
state sensor (Figure 4-8
) which provides an electric signal to
the crane’s programmable controller. The programmable
controller uses the signal for the following purposes:
• Automatically control the position of the mast raising
cylinder and levers during crane setup.
• Allow the operator to monitor the mast angle on the
display during crane setup.
Adjusting Mast Angle
The mast angle sensor was set at the factory and should not
require periodic adjustment. However, adjustment is
necessary when parts are replaced.
1. Park crane on a solid, level surface.
2. Lower mast to transport position.
3. Place a digital protractor-level on mast (Figure 4-6
) and
note mast angle.
4. Go to MAST ANGLE on information screen of main
display. Note mast angle.
5. Angle noted in steps 3 and 4 must match within 1°.
6. If necessary, loosen mounting screws and rotate
sending unit in mounting slots until reading on display
matches angle on level.
7. Securely tighten mounting screws to lock adjustment.
Boom or Jib Top
Node Controller
Wires
Receptacle
ID
Function
Red J17-1 Ground
Green J17-2 Signal
Black J17-3 5 VDC Supply
White Not Used
Scribe
Line
3.2°
Sensor
FIGURE 4-5
A08268e
FIGURE 4-6
P317
Digital
Protractor-
Level
Angle
Sending Unit
Left
Mast Leg
To Next Page
Loading...
