BOOM 16000 SERVICE/MAINTENANCE MANUAL
4-8
Published 05-03-17, Control # 228-03
DRUM PRESSURE ROLLER
An optional pressure roller assembly is available for the
boom hoist drum.
The roller is spring-loaded to assist in maintaining proper
wire rope spooling by firmly holding the wire rope against the
drum and subsequent layers.
Adjustment
See Figure 4-9 for the following procedure.
The operator shall monitor drum spooling during operation.
If the wire rope jumps layers or does not wind smoothly onto
the drum, perform following steps:
1. Hold the spring guide (7) wrench flat.
2. Tighten the lock nut (5) to increase spring tension.
A11126
Mast Angle
Sensor
FIGURE 4-8
Table 4-4
Wires
Receptacle
ID
Function
Red J1-A
Supply Voltage
5 VDC or 10 VDC
Green J1-B
Analog Output 1
0 to 5 VDC
Black J1-C
System Ground
Power and Signal
White J1-D
Analog Output 2
0 to 10 VDC
Scribe
Line
WARNING
Crush Hazard!
The roller is spring-loaded. Stop the drum and turn off the
engine before adjusting the roller.
FIGURE 4-9
Item Description
1Drum
2 Pressure Roller
3Roller Frame
4Pivot Pin
5 Lock Nut
6Spring
7 Spring Guide
4
2
Spring Forces Rollers
Against Drum
A14558
3
1
5
6
7
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