Manitowoc 2250 User Manual

Reference Only
Manitowoc Published 06-24-16, Control # 241-01 3-31
2250 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
3
Luffing Jib Down Limits
Two luffing jib down limits are provided. Both limits can be
bypassed as indicated in Table 3-2
.
• Luffing Jib Maximum Down 1—This limit automatically
stops the luffing hoist when the boom-to-luffing jib angle
is the following:
- 73° if equipped with a MAX-ER 2000 attachment
- 63° for all other attachments
• Luffing Jib Maximum Down 2—This limit automatically
stops the luffing hoist when the boom-to-luffing jib angle
is the following:
- 70° if equipped with a MAX-ER 2000 attachment
- 60° for all other attachments
The luffing jib can be raised after either limit is contacted.
NOTE: For cranes meeting 2010 European Requirements,
the luffing jib cannot be raised after the Luffing Jib
Maximum Down 2 limit is contacted, until the limit
switch is reset. When the limit is contacted, the
screen shown in Figure 3-12
will appear on the
digital display.
Once the screen appears, confirm it to reset the
limit switch. The luffing jib can then be raised.
Maximum Bail Limit
This limit automatically stops the corresponding load drum
from hoisting when there is a preset maximum number of
wire rope layers on the drum.
The load can be lowered after the limit is contacted.
The limit bypass switch must be turned to the BYPASS
position before the boom can be hoisted above the limit.
Minimum Bail Limit
This limit automatically stops the corresponding load drum
when there are three wraps of wire rope remaining on the
drum.
The load can be raised after the limit is contacted.
The limit bypass switch must be turned to the BYPASS
position before the load can be lowered below the limit.
WARNING
Falling Boom/Jib Hazard!
Avoid serious injury or equipment damage. The boom and
luffing jib could collapse if the luffing jib is lowered below
the minimum angle.
Follow the Luffing Jib Raising Procedure in the Capacity
Chart Manual.
LUFFING JIB MAX DN 2
CONFIRM TO RESET
FIGURE 3-12
WARNING
Falling Load Hazard!
Avoid serious injury. The wire rope could jump off the
drum, allowing the load to fall if the maximum allowable
spooling capacity given in the Wire Rope Specifications
Chart in the Capacity Chart Manual is exceeded.
WARNING
Falling Load Hazard!
Avoid serious injury. If less than three full wraps of wire
rope are on the drum, the wire rope could be pulled out of
the drum, allowing the load to fall.
When lowering a load below the minimum bail limit, do so
slowly with extreme caution.

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English