Manitowoc 999 Service And Maintenance Manual

Reference Only
Manitowoc Published 05-16-17, Control # 233-03 7-5
999 SERVICE/MAINTENANCE MANUAL POWER TRAIN
7
BATTERY DISCONNECT SWITCH
The battery disconnect switch (Figure 7-4) is located In the
right side enclosure.
The switch disconnects the engine controller (Node 0) from
the positive side of the battery. Since the rest of the crane’s
control system is powered through Node 0, opening the
disconnect switch effectively removes power from the entire
control system.
To operate the battery disconnect switch:
• Turn handle COUNTERCLOCKWISE to DISCONNECT
the control system from the batteries. The handle can be
removed in this position.
• Turn handle CLOCKWISE to CONNECT the control
system to the batteries.
Following are reasons for using the disconnect switch:
• When servicing crane’s electrical control system.
• To help prevent batteries from discharging when the
crane is stored for extended periods of time.
• To prevent crane from being started by unauthorized
personnel.
CAUTION
Engine Damage!
To avoid possible engine fault codes and undesirable
operation, make sure engine ignition switch has been off
five minutes before disconnecting batteries.
Do not rely on this switch to protect crane’s electronic
systems when welding. Disconnect battery cables at
batteries before welding.
CAUTION
Potential Control System Damage!
Before Welding:
• Disconnect battery cables at batteries.
• Disconnect the cabling from any control node
enclosures that are in the vicinity of the welding.
Do not rely on the disconnect switch to protect the crane’s
electronic systems when welding.
FIGURE 7-4
Battery
Disconnect
Switch
CONNECT
DISCONNECT

Manitowoc 999 Specifications

General

Brand	Manitowoc
Model	999
Category	Construction Equipment
Language	English