Manitowoc MLC100-1 User Manual

SETUP AND INSTALLATION MLC90A-1/MLC100-1 OPERATOR MANUAL
4-60
Published 12-10-19, Control # 258-05
RAISE BOOM
Pre-Raising Checks
Perform the following checks before raising the boom and
jib:
 Maintenance and lubrication checks have been
performed according to Maintenance Checklist and
Lubrication Guide.
 Crane is on a firm, level surface.
 Crawlers are blocked if required per capacity chart in
use.
 Crawlers pinned in extended position.
 Boom and jib inserts are installed in proper sequence
per boom and jib rigging drawings.
 Safety pins are installed in all boom connecting pins.
 Intermediate suspension (if required) is installed.
 All pendants are installed in proper sequence and
properly pinned together. Cotter pins are installed and
spread.
 Boom hoist wire rope is spooled tightly onto boom hoist
and engaged with the proper sheaves.
 Load lines are spooled tightly onto drums and engaged
with proper sheaves.
 Load lines are securely anchored at boom and jib points
or at load block and hook-and-weight ball.
 All tools and other items are removed from boom and jib.
 Boom max up limit switch properly installed, operational,
and adjusted to proper angle.
 Electric cables from crane control system are connected
between boom butt and boom top.
 Electric cables are properly connected in boom and jib.
 Block-up limit control is properly installed, operational,
and adjusted.
 Anemometer is hanging correctly and electric cable is
not wrapped around support bracket.
 RCL/RCI is properly configured and operational.
 Proper capacity chart is selected and necessary deducts
applied on configuration screen of RCL/RCI Display.
 Operator has read and is thoroughly familiar with
selected capacity chart. Consult the selected capacity
chart for applicable deducts and boom length
raising limitations.
 Wind is within allowable limits for operation as shown in
Wind Conditions document located at end of Section 3.
Boom Raising Procedure
1. Verify that the pre-raising checks have been performed.
2. SLOWLY start to boom up:
a. Have an assistant watch the boom pendants as the
boom rises.
b. Signal the operator to STOP raising the boom if the
pendants get caught on the boom sections. Correct
the problem before continuing.
3. SLOWLY continue to boom up.
4. Continue to raise the boom until the lower and upper
boom points are at a convenient height for installing the
load block(s) and hook-or-weight ball.
5. Install the load block(s) and the hook-or-weight ball at
the lower and upper boom points (see Figure 4-27
).
6. If equipped with a jib, continue to raise the boom until the
jib point is at a convenient height to install the load block
or the hook-and-weight ball.
a. Signal the operator to STOP raising the boom if the
jib pendants get caught on the jib sections. Correct
the problem before continuing.
b. Make sure the jib stop pins are properly installed.
See Deploy Strut Stops on page 4-59
.
7. Install the load block or the hook-and-weight ball at the
jib point (see Figure 4-27
).
8. Continue to boom up until the boom is at an angle that
safely allows the load block(s) and/or hook-and-weight
balls to be lifted.
9. Once the boom is raised:
a. Check all crane functions for proper operation.
b. Check all safety devices for proper operation (see
Section 3 of the Operator Manual).
c. Check that the boom max up limit switch is adjusted
to the proper maximum boom angle.
d. Check that the RCL/RCI is properly calibrated.
CAUTION
Avoid Wire Rope Damage
Have an assistant watch the load lines as the boom is
raised.
Make sure the wire rope is engaged with the sheaves in
the boom points, the jib point, and the load block.
Severe damage can occur if the wire rope has “jumped”
off a sheave.

Manitowoc MLC100-1 Specifications

General

Brand	Manitowoc
Model	MLC100-1
Category	Construction Equipment
Language	English