Manitowoc 2250 User Manual

Reference Only
OPERATING CONTROLS AND PROCEDURES 2250 OPERATOR MANUAL
3-48
Published 06-24-16, Control # 241-01
5. If it becomes necessary to operate the boom hoist, turn
on the drum 5 park and turn off the drum 4 park. Drum 4
can then be operated to raise and lower the boom as
required.
Luffing Hoist Operation
The auxiliary drum handle has no function for luffing hoist
operation. For luffing hoist operation, the boom hoist (drum
4) and the luffing hoist (drum 5) are both controlled by the
handle on the left console.
See Boom/Luffing Hoist Operation on page 3-35
for the
procedure on switching between operation of the boom hoist
(drum 4) and the luffing hoist (drum 5).
Drum 5 Operation—Travel diverted
General
The following instructions describe operation of drum 5 when
hydraulic oil from the travel circuit is used to power the
auxiliary drum. See Figure 3-28
for handle identification. If
equipped with this option, the crane cannot be used with a
MAX-ER attachment.
Load Drum Operation
To operate drum 5 as an auxiliary load drum, proceed as
follows.
1. Select and confirm drum 5, [AUX HST] mode.
2. Turn on the travel park. Drum 5 and travel cannot be
operated at the same time.
3. Turn off the drum 5 park.
4. Use the drum 5 handle to raise and lower loads as
follows.
a. Move the handle to the rear to raise the load. The
brake releases and the speed increases in relation
to handle movement.
b. Release the handle to the center to stop the drum.
Speed decreases to off and the brake applies to
stop the drum and hold it in position.
c. Move the handle to the front to lower the load. The
brake releases and the speed increases in relation
to handle movement.
d. The brake will spring apply to stop the drum if power
is lost.
NOTE 1: Either of the other two load drums—right or left
(drum 2 or 3)—can be operated at same time as
drum 5.
5. If travel is required, turn on the drum 5 park brake and
turn off the travel park. The crane can then be traveled.
Luffing Hoist Operation
The auxiliary drum handle has no function for luffing hoist
operation. For luffing hoist operation, the boom hoist (drum
4) and the luffing hoist (drum 5) are both controlled by the
handle on the left console.
See Boom/Luffing Hoist Operation on page 3-35
for the
procedure on switching between operation of the boom hoist
(drum 4) and the luffing hoist (drum 5).

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English