Manitowoc 2250 User Manual

Reference Only
Manitowoc Published 06-24-16, Control # 241-01 4-39
2250 OPERATOR MANUAL SETUP AND INSTALLATION
4
12. While watching the equalizer, boom down until the
equalizer sags a maximum of 15 cm (6 in). The boom
will not move.
13. Lower the load to move the boom until the equalizer
tightens to the point that the boom stops lowering.
14. Hoist again, stopping before hitting the cab support.
15. Repeat steps step 12
through step 14 until the boom
lowers freely and position the crawler on the trailer.
16. Unhook the handling chain assembly from the lugs on
the crawler frame.
17. Engage the crawler frame pins.
18. Rotate the rear jacks to the horizontal “wing” position
(Figure 4-19
, View C). Do not rotate the jacks to the
stored position.
19. Swing the rotating bed to the other side of the carbody
and center the assembly block over the crawler.
20. Rotate the rear jacks to the operating position
(Figure 4-8
).
21. Extend the jacks until the pads are about 15 cm (6 in) off
the ground.
22. Repeat step 1
through step 15 for the other crawler.
23. Remove and store the chain assembly.
Connect Equalizer to Gantry
1. Lower the boom butt onto the blocking on the ground.
2. Remove and store the assembly block.
3. Lower the gantry cylinders to the extend position.
4. Reeve the load line under the small sheave on the boom
butt, and place the retaining pins into the sheave frame
(Figure 4-14
, View A).
5. Anchor the load line to the equalizer with a dead-end
socket and wedge (Figure 4-14
, View B).
6. Insert the equalizer line-up pins in the second-to-last
hole in the rails (Figure 4-15
, View A).
7. Slowly pay out the load line while hauling in the boom
hoist line until the equalizer rests against the line-up
pins.
8. With the boom hoist line slack, place tension on the load
line just enough to loosen and remove the connecting
pins holding the equalizer to the rails (Figure 4-15
,
View B). Remove and store the pins.
9. Slowly haul in the boom hoist line and pay out the load
line to lift the equalizer from the rails on the boom butt.
10. Remove the equalizer line-up pins from the rail and store
them (Figure 4-15
, View A).
11. Raise the boom butt to the limit of the boom butt cylinder.
12. Maintain equal haul-in and payout speeds so the
equalizer rises smoothly.
a. Too much tension in either line will cause the butt to
rise off the cylinder and the equalizer to stop.
b. Too little tension will cause the equalizer to tip.
13. Continue until the equalizer is just above the guide
rollers on the gantry.
14. Fully lower the gantry using the gantry cylinders while
paying out the load line and hauling in the boom hoist
line so the equalizer lands on the gantry rails.
15. Continue to slowly haul in the boom hoist line and pay
out the load line to slide the equalizer under the tie-down
clips (Figure 4-14
, View C). The equalizer limit switch
will stop the boom hoist automatically.
16. Lower the boom butt onto the blocking.
17. Unpin the load line dead-end socket from the equalizer
(Figure 4-14
, View B) and remove the wedge and socket
from the load line.
18. Remove the load line from the guide sheave on the
boom butt. Haul in and secure the load line on the load
drum for storage.
DANGER
Tipping Hazard!
Avoid serious injury. To prevent the crane from tipping
while handling the counterweights, do not exceed the
maximum swing and capacity limitations given in
Figure 4-17
.

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English