Manitowoc 18000, Service Maintenance Manual, Page: 177 / 316

Reference
Only
Manitowoc
Published 12-05-17, Control # 035-23
3-37
18000 SERIVCE/MAINTENANCE MANUAL ELECTRIC SYSTEM
3
Table 3-6 Operating Limits
Listed below are limits which turn on the operating limit alert (yellow light and continuous buzzer). When the alert comes on,
the OPERATING LIMIT group of the digital display indicates which limit has been reached; take corrective action.
[1] Optional item.
[2] Angle at which boom stops varies with attachment. See Section 4 of this manual for maximum operating angles.
Display Reading Function Response Corrective Action
BLOCK LEVEL Block level sensing fault. Block angle exceeded for parts of line. See
Block Level screen in Crane Diagnostic
section.
BLOCK UP Stops load drums from hoisting and boom/
luffing jib from lowering. Lower corresponding load or raise boom or
jib.
CONFIRM MODE All drums inoperable until an operating mode
is selected and confirmed. Select and confirm the desired operating
mode (see Operating Controls in this section
for procedure).
CRANE LEVEL Crane is 3 degrees out of level when jacking. Level crane with individual jacking switches.
FUNCTION PARKED Function inoperable because it is parked. Turn corresponding park switch off and sit
down in operator’s seat.
JIB BELOW HORIZONTAL [1] Luffing jib operable. See capacity chart for
luffing jib minimum operating angles.
Raise luffing jib above horizontal.
LOAD MOMENT Stops all load drums from hoisting and
boom/luffing jib from lowering. Land load on load drum or raise boom or jib.
MAST BELOW 2 DEGREES Stops down movement of live mast when
lowering mast to transport position. Pin live mast in place before retracting mast
arms cylinders fully.
MAST TOO FAR FORWARD Boom hoist (live mast) inoperable in lowering
direction (occurs if mast is below 160°). Raise live mast. Further lowering is not
intended—
mast will fall.
MAX DOWN [1] Stops boom from lowering (limit set at 0°).
Stops luffing jib from lowering when boom to
luffing jib MINIMUM angle is reached. Raise boom or luffing jib.
MAX UP 1 Stops boom from rising when maximum up
limit is reached. [2]
Stops luffing jib from rising when boom to jib
MAXIMUM WORKING angle is reached.
This angle can be bypassed to raise jib to
MAXIMUM angle. Lower boom/luffing jib.
MAX UP 2 [1] Stops luffing jib from rising when boom to jib
MAXIMUM angle is reached. This limit can
be bypassed only when boom is below 50°. Lower luffing jib.
MAX BAIL Drum stops hoisting. Operate drum in lowering direction.
MIN BAIL Drum stops lowering. Operate drum in hoisting direction.
RANGE LIMITER Stops swing movement of rotating bed when
either swing limit is reached. Swing rotating bed in opposite direction
away from limit.
SWING PARKED
(cranes with swing lock)
Stops travel function with MAX-ER. Place swing park in off position to travel.
SWING PARKED
(cranes without swing lock )
Stops travel function without MAX-ER. 1) Place swing park in off position to travel.
2) Install W48 Shorting Plug in MAX-ER
Junction Box
IF configured without MAX-ER
attachment. 3) Confirm swing brake release
pressure on
Swing (Crane) diagnostic
screen; if below 200 psi (13,8 Bar),
troubleshoot swing brake hydraulic circuit.