Manitowoc 2250 User Manual

Reference Only
OPERATING CONTROLS AND PROCEDURES 2250 OPERATOR MANUAL
3-20
Published 06-24-16, Control # 241-01
D5—Battery Voltage Gauge
This shows the condition of the battery charging system. For
a complete description of gauge readings, see Figure 3-7
.
D6—Air Pressure Gauge
This shows pressure in the air system for the load drum
brakes and clutches. The gauge should read 8.3 to 9.1 bar
(120 to 132 psi) with the engine running.
E—Special Controls and Indicators
See Figure 3-4 for the following components and see
Figure 3-8
for drum identification.
E1—Drum 1 Free Fall Light
E2—Drum 2 Free Fall Light
E3—Drum 3 Free Fall Light
These lights glow yellow when Free Fall is on for the
corresponding load drum.
E4—Crane Mode Selector
Insert and turn the key clockwise and hold it to select the
desired crane mode. The crane mode appears on the first
line of the digital display. Available crane modes will then
scroll by (one to two seconds apart) on the second line of the
display.
Turn the key counterclockwise to confirm the desired crane
mode when it appears on the digital display.
Release the key to center. Remove the key to prevent
unauthorized operation.
NOTE: To check the crane mode in effect, turn the key to
the CONFIRM position. The present mode will
appear on the digital display.
The crane mode in effect when the engine is
stopped remains in memory. At each startup, the
crane mode in effect must be confirmed or another
mode must be selected and confirmed. The load
drums and boom hoist are not operable until this
step is performed (the operating limit alert will
come on and CONFIRM MODE will appear on the
digital display if operation is attempted).
The crane can be operated in one of several
modes. If the Free Fall option is not selected, the
corresponding drum operates in full power.
Main Modes
See the description below for the available crane modes.
Standard
Use this mode for all normal load handling operations.
This mode allows full power or free fall operation of only
one drum at a time.
Clamshell
This mode allows two load drums (holding and closing)
to be operated at the same time and turns on the
Clamshell Power Down and Closing features.
Drum 5 (Luff Jib)
This is the same as Standard mode except the boom
hoist is parked and inoperable. Drum 5 is operable and
the luffing jib limits are turned on. See the Luffing Jib
Operator Manual for raising and lowering instructions
when equipped with the luffing jib attachment.
When it is necessary to operate the boom hoist, select
and confirm Standard mode. Drum 5 is then parked and
inoperable.
Drum 5 (AUX HST)
This is the same as Standard mode, except drum 5 is
also operable (Figure 3-8
).
Tandem Drum
This is the same as Standard mode, except that two load
drums operate at the same time with the left handle
(Figure 3-8
).
Crane Setup
This is the same as Standard mode except for the following:
• The operating limit fault is turned on.
• The boom hoist handle controls drum 4 regardless of the
auxiliary mode.
WARNING
Moving Load Hazard!
Avoid the possibility of death or serious injury.
Unexpected drum motion or improper limit responses can
result if the wrong mode is selected.
The operator shall select the proper operating mode prior
to operating.
WARNING
Boom Hazard!
A falling boom can result in the possibility of death or
serious injury. Crane Setup mode is provided for crane
assembly and disassembly purposes only.
Do not use this mode for normal load handling operations.
The Boom Up limit is inoperable, which could allow the
boom to be pulled over backward.

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English