INTRODUCTION 2250 SERVICE/MAINTENANCE MANUAL
1-34
Published 11-06-15, Control # 040-13
• In Clamshell mode, two load drums (holding and
closing) are operated at the same time and controlled
with one load drum control handle. The power-down and
closing features are turned on. The PC controls pump
EDC's and engages the clutches in up and down
operations. The PC also controls load drum brake
application. Contact the Service Department for
information on Clamshell modes.
• In MAX-ER™ mode, the program allows operation of
crane and MAX-ER attachment as one system.
Electrical Power to Operator’s Cab
See Figure 1-17 for the following procedure.
Battery power is available at all times to operate dome light
switch, horn switch, alternator, accessory outlet, and the PC.
When the engine run/stop switch is placed in the run
position, voltage is available at the key-operated engine start
switch and other cab controls.
Contacts of start switch and remote run/stop switches must
be enabled to start engine. When both switches are enabled,
voltage is available to:
• Starter solenoid relays MS1 and MS2
• Engine hour meter
• Fan motor relay
• Ignition relay
• Ether relay
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