Manitowoc MLC90A-1 User Manual

Manitowoc Published 12-10-19, Control # 258-05 4-83
MLC90A-1/MLC100-1 OPERATOR MANUAL SETUP AND INSTALLATION
3
1
4
Prepare Trailer for Loading
See Figure 4-52.
1. Position the trailer (1, View A) on a firm level surface.
2. Remove the goose neck and the truck.
3. Lower the trailer deck to the ground.
Manitowoc recommends that the gantry be lowered after the
crane is traveled onto the trailer.
Travel Crane onto Trailer
See Figure 4-52.
1. Swing the upperworks in line with the lowerworks and
PARK the swing function.
2. Lower the boom butt to horizontal.
3. Slowly travel the crane into the desired position on the
trailer and PARK the travel function.
4. Secure the crane to the trailer.
5. Lower the boom butt onto blocking View A) so the boom
butt is at least 457 mm (18 in) above the trailer deck.
Lower Gantry
See Figure 4-51.
Use the gantry cylinder switches either on the right console
in the cab for this procedure.
1. Pay out the boom hoist wire rope as required to keep
slack in the boom hoist reeving.
2. Retract the gantry cylinders (6, View B) to fully lower the
gantry (5, View C).
3. Remove the safety pins (2, View D), the collars (3), and
the pins (4) from the holes in the counterweight links (1).
4. Rotate the counterweight links (1, View A) to the
shipping position and align the connecting holes.
5. Install the pins (4, View E), the collars (3), and the safety
pins (2).
The pin heads should be on the inboard side of the links.
CAUTION
Avoid Wire Rope Damage!
If you chose to lower the gantry before traveling the crane
onto the trailer, the boom hoist wire rope will rub against
the cross brace on the gantry and possibly against the
wire rope on the rear drum when the boom butt is
lowered. Premature rope wear will occur, resulting in
shorter rope life.
WARNING
Tipping Crane Hazard!
To prevent tipping, do not swing (keep upperworks inline
with lowerworks).
CAUTION
Avoid Wire Rope Damage!
To lower the gantry, the boom butt must be at least 457
mm (18 in) above the trailer deck (View A). Otherwise,
wire rope damage can occur.
Figure 4-52
457 mm
(18 in)

Manitowoc MLC90A-1 Specifications

General

Brand	Manitowoc
Model	MLC90A-1
Category	Construction Equipment
Language	English