Manitowoc 2250 User Manual

Reference Only
Manitowoc Published 06-24-16, Control # 241-01 4-113
2250 OPERATOR MANUAL SETUP AND INSTALLATION
4
Raise Jib Strut
See Figure 4-58 for the following procedure.
1. Determine the pendants and links (2—4, View B or
View C) required for the jib offset.
2. Pin the pendants and links to the backstay links (heavy
lift top) or the lugs on the transition insert (long reach
top).
NOTE: Backstay links (3, View B or View C), if used, must
be adjacent to the connecting links (4).
3. Using an assist crane or forklift truck, lift the jib point
approximately 0,9 m (3 ft) off the ground and block it
(see View A).
Raising the jib point provides enough slack to allow
pinning the backstay pendants.
4. Using the appropriate slings, attach the hook from an
assist crane to the top of the jib strut (see View A).
5. Slowly lift the jib strut over the center with the assist
crane.
NOTE: Use extreme caution not to side load the strut while
lifting.
6. Pin the basic backstay pendants (1) to the links or
pendants (2—4) previously pinned to the lugs on the
transition insert (long reach top) or the boom backstay
links (heavy lift top) (see View B or C).
7. Remove the blocking from the jib point and lower the jib
point to the ground.
Connect Jib Stop
See Figure 4-57 for the following procedure.
1. Slowly raise the boom until the jib is supported by the
backstay and jib pendants.
2. For the long reach boom top (see Views D and E),
proceed as follows depending on the jib offset.
a. 5°—Pin the pendants (7) to the holes in the
adjusting links (9) that give the least pendant slack
or some preload.
b. 15° and 30°—Pin the pendants (6 and 7) directly to
the strut (8).
3. For the heavy lift boom top (see Views F and G),
proceed as follows depending on the jib offset.
a. 5°—Pin
the pendants (6) to the holes in the adjusting
links (9) that give the least pendant slack or some
preload.
b. 15° and 30°—Pin the pendants (6) directly to the
strut (8).
Install Load Line
See Load Line Reeving on page 4-122 for the proper routing
and reeving of the load lines to the jib point.
NOTE: Load lines must be properly routed through the
RCL load-sensing sheaves as shown in the reeving
diagrams.
Install Block-Up Limit Control and Connect
Wiring
See Figure 4-46 for the following procedure.
Install the block-up limit components. (See Figure 4-46
and
the Block-up Limit Control Assembly drawing).
1. Connect the electrical cable from the jib to the junction
box in the boom top.
2. Connect the electrical cable from the limit switch to the
junction box in the boom top.
3. Adjust the block-up limit switch according to Section 5 of
the Crane Service Manual.
4. Connect the electrical cables from the rated capacity
limiter RCL load-sensing sheaves to the junction box in
the boom top. See the Indicator Assembly drawing.
5. Check the RCL operation and calibrate as instructed in
the RCL Operation Guide.
JIB REMOVAL (#132 JIB)
DANGER
Collapsing Jib Hazard!
To prevent death or serious injury, do not stand on, inside,
or under the jib during disassembly. Always stand on the
outside of the jib when removing the connecting pins.
Support the jib properly before removing the pins. Block
sections at the connection points.

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English