Manitowoc 2250 Service And Maintenance Manual

Reference Only
Manitowoc Published 11-06-15, Control # 040-13 4-9
2250 SERVICE/MAINTENANCE MANUAL BOOM
4
Disconnecting Luffing Jib Angle Indicator
See Figure 4-6 for the following procedure.
1. Unplug electric cord (B) from receptacle on sending unit.
2. Connect protective cap to receptacle on sending unit.
3. Connect electric cord to receptacle (A) on boom point
junction box.
Sending Unit Assembly
Replacement sending units can be either the pendulum-type
potentiometer (past production) or solid state sensor (current
production).
Pendulum-Type Potentiometer
When replacing parts in the pendulum-type potentiometer
sending unit, take the following precautions (Figure 4-8
and
Figure 4-10
, View A):
1. Mount potentiometer at angle shown.
2. Connect black, green, and white wires from receptacle
to proper terminals on terminal strip.
3. Connect wires from potentiometer to proper terminals on
terminal strip.
4. Make sure all parts are securely fastened to their
mounting position.
FIGURE 4-8
1
3
2
52 50°
0 - Black
82BA - Green
87FA - White
3-Pole Receptacle
With Protective Cap
120° Pendulum-Type Potentiometer
M.E.C. #575885
Vendor #CP17-0693-1
Boom Angle
Sending Unit
A1049
Solid State Sensor (+/- 60°)
M.C.C. #A09716
Vendor #CS17
VIEW B
Input Wires
Color
Sensor
Wires Color
Operation
Code
From To
Black Black Ground
Green White Signal
White Red 10 Volts DC
Green N/C
A1294
3-Pole
VIEW A
52.5
o
REF.
87FA - White
82BA - Green
0 - Black
Receptacle
Black
Green
Red
White
Position Sensor
Like This

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English