General Operational Issues
Operator Shutoff Devices
ANTI-TWO BLOCK SYSTEM
Inspect all anti-two block switches found on the boom, jib and auxiliary sheave heads for
damage. Check the freedom of the counterweight attached to these switches; and also,
that the counterweight is attached around correct line of hoisting cable in the proper
manner. Inspect all electrical connections and wires as well as the entire length of cable
attached to the cable reel and it's connections for evidence of excessive wear, damage or
improper installation. Check spring loaded cable reel for proper tension and to insure that
reel is free to rotate. Verify visual and audible warning devices by lifting each of the
counterweights.
A warning light will appear on the dash mounted panel and an audible signal will be
heard when switch is in ON position.
NOTE:
RATED CAPACITY INDICATOR
The RCI will indicate an overload condition with an audible alarm. All boom
functions will be disabled except boom retract, boom up, and winch down. Move
the load into an acceptable condition to stop alarms and continue normal crane
operation. (See RCI Section for further details.)
EMERGENCY STOP
The emergency stop button is located on the lower part of the dash to the left of the
steering wheel column in the operator's cab. In an emergency, this button can be pushed in
to stop all crane functions including engine operation. You must pull the button out before
you can resume normal operation of the crane.
3RD WRAP
Winch down function wll be disabled when less than 3 wraps of rope are available on the
winch. You must retract boom or winch up.
OPERATOR'S ARMREST
When Operator's left arm rest is raised, all functions are disabled. Lower arm rest to
resume normal crane operation.
Operating Instructions
65REVISED:
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