Manitowoc Published 11-06-15, Control # 040-13 3-43
2250 SERVICE/MAINTENANCE MANUAL ELECTRIC SYSTEM
* = Optional
* LUFFING JIB MAX DOWN Luffing jib stops lowering when boom to jib
angle is 60° (70° on #44 luffing jib).
Raise luffing jib.
EQUALIZER**BOOM STOP Boom hoist stops hoisting when equalizer is
pulled back against stops on gantry and when
physical boom stops are within 1 in (25 mm)
of bottoming out.
Pay out (lower) boom hoist wire rope.
SETUP MODE ENGAGED All functions operable. For crane setup only,
travel operates at 1/2 speed and automatic
boom stop is disabled.
Turn off setup selector. (Select and
confirm desired operating mode.)
* JIB BELOW HORIZONTAL Luffing jib is operable. See Capacity Chart for
luffing jib minimum operating angles.
Raise luffing jib above horizontal.
* CTWT OFF RING Alert only. Does not stop boom hoist or load
drum operation.
Crane’s capacity has been exceeded.
Stop lowering boom or hoisting load
immediately. Land load slowly and
smoothly.
CONFIRM MODE Load drums inoperable until mode in effect is
confirmed or another mode is selected and
confirmed.
Confirm mode in effect or select and
confirm a different mode.
DRUM AIR VALVES Selected drum air pressure switch is open for
more than 4 seconds.
Brakes and clutches of all drums on
main shaft are applied. Fault cannot be
cleared until the crane is shutdown and
restarted.
Display Reading Function Response Corrective Action
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