Manitowoc 18000 - Perform Mast Pre-Raising Checks; Raise Fixed Mast; General

Reference Only
Manitowoc Published 12-05-17, Control # 032-23 4-51
18000 OPERATOR MANUAL SET-UP AND INSTALLATION
4
Perform Mast Pre-Raising Checks
Perform the following pre-raising checks and correct any
defects before raising mast.
 Crane on firm, level surface.
 Rotating bed jacks fully retracted and pinned in stored
position.
 Rotating bed jack pads properly stored.
 Carbody pedestals properly stored.
 Mast hinge pins fully engaged.
 Mast inserts installed in proper sequence.
 Mast straps pinned in working position.
 If equipped, MAX-ER counterweight straps pinned in
working position.
 All insert connector pins installed and properly retained.
 Setup mode selected and confirmed.
 Live mast arms fully lowered.
 All blocking, tools, and other items removed from mast.
 Mast and boom hoist wire rope spooled tightly onto
drums and engaged with proper sheaves.
 Equalizer securely attached to proper size assist crane.
and positioned at proper distance from end of mast.
 Wind within allowable limits for operation.
Raise Fixed Mast
NOTE No counterweight — carbody or crane — is
required to raise the fixed mast. The counterweight
can be installed, however.
General
To raise the mast, the SETUP mode must be selected to
enable simultaneous operation of Drum 4 (boom hoist) and
Drum 5 (mast hoist). The following controls are used to raise
the mast:
• Drum 4 (boom hoist) on left console
• Drum 5 (mast hoist) on right console
• Drum park switches
A qualified operator is required to raise the mast. The
operator shall be experienced with the 18000, and
thoroughly familiar with its operation.
A qualified signal person is required to give signals to the
operator(s).
A holdback is required to raise the fixed mast. Either the
assembled crane boom or an assist crane can be used.
USING ASSEMBLED 18000 BOOM AS HOLDBACK
If the 18000 boom is used as the holdback, the following
boom length is required:
Table 4-3
Mast Holdback Requirements when Using 18000 Boom
USING ASSIST CRANE AS HOLDBACK
If an assist crane is used as the holdback, the assist crane
must provide the holdback forces given in Table 4-4
. The
letters in the table correspond to the letters in View A,
Figure 4-30
.
Table 4-4
Holdback Requirements when an Using Assist Crane
Mast Length Minimum Boom Length
100 ft (30,5 m) 120 ft (36,6 m)
140 ft (42,7 m) 140 ft (42,7 m)
Mast Length
A
From End
of Crawler
B
Horizontal
C
Vertical
100 ft (30,5 m) 110 ft
(33,5 m)
(see Note)
35,000 lbf
(156 kN)
27,000 lbf
(120 kN)
140 ft (42,7 m)
NOTE For 140 ft (42,7 m) mast, assist crane and
equalizer must be traveled to dimension A once
mast is out of the way.