Manitowoc Published 12-05-17, Control # 032-23 4-63
18000 OPERATOR MANUAL SET-UP AND INSTALLATION
Disconnect Live Mast Straps
See Figure 4-34 for the following procedure.
1. Using setup remote control, fully raise mast assist arms
(1, View A).
2. Lower live mast (2, View A) until fixed mast straps (3,
View C) are resting in strap brackets (4).
3. Remove shipping pins (5, View C) from storage and
install in strap brackets (4).
4. Remove pins (6, View C) from top end of links and place
pins to side until mast sections are disassembled.
Once mast sections are disassembled, install pins (6) in
butt end of mast straps.
5. Repeat steps 3 and 4 for MAX-ER straps, if equipped.
6. Unpin adjustable links (7, View B) from fixed mast straps
(3).
7. If long end of adjustable links (7) is down, remove pins
(8), rotate adjustable links 180°, and reinstall pins (8).
Long end of adjustable links must be attached to live
mast straps for storage as shown in View B.
8. Position live mast (2) so it is out of the way during
remaining steps.
Store Wire Rope Guide
To store wire rope guide if equipped with Drum 3, reverse
steps under Lower Wire Rope Guide topic on page 4-47
.
Store Mast Stops
To store mast stops, reverse steps under Raise Mast Stops
topic on page 4-47
.
Remove Mast Inserts
1. If not already done, lift boom hoist equalizer (11, View A)
into position on forks at end of mast top (13) with assist
crane and install retaining pins (Figure 4-33
, View E).
2. Attach slings (12) from assist crane to lifting lugs on
mast top (13, View A).
3. Slowly hoist against mast top until slings are just taut.
4. Remove pins (17, View D) between mast top (13) and
insert (14).
Store pins in tubes on end of insert.
5. Lift mast top (13) clear of insert (14) and place mast top
on ground approximately 10 ft (3,0 m) in front of insert
(View H).
Pay out wire rope from Drum 4 while performing this
step.
6. Disconnect chain slings (12).
7. If necessary, secure mast supports (19, View E) so they
cannot drop, remove pins (20), and lower mast supports.
Store pins (20) in lugs on mast butt.
8. Attach nylon lifting slings (18, View G) from assist crane
to top chords at end of mast butt (16).
9. Slowly hoist against mast butt until slings are just taut.
10. Remove pins (17, View D) between mast butt (16) and
insert (15).
11. Slowly lower mast butt until mast supports (19) engage
rotating bed (21) and lifting slings slacken.
12. Disconnect lifting slings (18) from mast butt.
WARNING
Falling Mast Hazard!
Mast assist arms must remain raised after live mast is
disconnected from fixed mast rigging. Live mast will fall
over backwards if raised to vertical when arms are down.
Legend for Figure 4-34
Item Description
1 Mast Assist Arm
2Live Mast
3 Fixed Mast Strap
4 Strap Bracket
5 Shipping Pin
6 Pin with Collar, Retaining Pin,
and Cotter Pins
7 Adjustable Link
8 Pin with Cotter Pins
9 Wire Rope Guide (Drum 3)
10 Mast Stop
11 Boom Hoist Equalizer
12 Chain Sling
13 Mast Top
14 Mast Insert – 20 ft (6,1 m)
15 Mast Insert – 40 ft (12,2 m)
16 Mast Butt
17 Pin with Safety Pin
18 Nylon Lifting Slings (Owner Supplied)
19 Mast Support
20 Pin with Snap Pins
21 Rotating Bed
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