Manitowoc Published 07-19-16, Control # 249-01 3-23
2250 SERVICE/MAINTENANCE MANUAL ELECTRICAL SYSTEM
Table 3-3. Operating Limits
Listed below are the limits that turn on the operating limit alert (yellow light and continuous buzzer) in the operator’s cab. When
the alert comes on, scroll to the OPERATING LIMIT group of the digital display to determine which limit has been reached.
Take corrective action.
Display Reading Function Response Corrective Action
FUNCTION PARKED Function inoperable because it is parked. Turn corresponding park switch off or sit
down in the operator’s seat.
BLOCK UP The load drum stops hoisting, and the boom
hoist stops lowering.
Lower the load or raise the boom.
* MAXIMUM BAIL The load on the corresponding drum stops
hoisting.
Lower the load.
* MINIMUM BAIL The load on the corresponding drum stops
lowering.
Hoist the load.
FUNCTION NOT PARKED For standard crane equipped with a luffing jib
(Drum 5), boom hoist (Drum 4) cannot be
operated until the luffing hoist is parked, and
vice versa.
Park the corresponding drum.
FUNCTION NOT PARKED For MAX-ER 2000:
Drum 2 cannot be operated until Drum 3 is
parked, and vice versa.
Drum 9 cannot be operated until Travel is
parked, and vice versa.
Drum 4 cannot be operated until Drum 5 is
parked, and vice versa.
Park the corresponding drum.
BOOM MAXIMUM UP [1] The boom stops hoisting when the maximum
limit is reached.
Lower the boom.
BOOM MAXIMUM DOWN The boom stops lowering (limit usually set at
0°).
Raise the boom.
* MAST MAXIMUM UP
Mast stops hoisting 80°. Operable only in
Standard mode (MAX-ER 2000 only).
Lower the boom. To raise the mast
above limit, switch to Standard Setup
mode to bypass the limit.
* LOAD MOMENT If equipped with a shutdown option, the
corresponding load drum stops hoisting and
the boom hoist stops lowering. Other load
drums are inoperable.
If not equipped with a shutdown option, the
operating limit light and buzzer will come on
to alert the operator to an overload condition.
Land the load on the corresponding
load drum or raise the boom.
CRANE OUT OF LEVEL All functions operable. Crane 3° out of level. Level the crane.
* LUFFING JIB MAX UP 1 The luffing jib stops rising when the boom-to-
jib angle is 168°. This angle can be bypassed
to allow jib raising to LUFFING JIB MAX UP 2
limit at 170° on #133 or 133A luffing jib
(169.2° on #44 luffing jib).
Lower the luffing jib.
LUFFING JIB MAX UP 2 The luffing jib stops rising when the boom-to-
luffing jib angle is 170° on #133 or 133A
luffing jib (169.2° on #44 luffing jib). This limit
can be bypassed only when the boom is
below 50°.
Lower the luffing jib.
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