Manitowoc MAX-ER 16000 - Raise Fixed Mast Using Assist Crane as Holdback

Reference Only
Manitowoc Published 04-17-17, Control # 067-11 4-21
16000 HANGING MAX-ER® OPERATOR MANUAL SET-UP AND INSTALLATION
4
Raise Fixed Mast Using Assist Crane as Holdback
Circled numbers in Figure 4-11 match the following steps.
1. Start crane engine.
2. Attach assist crane to boom hoist equalizer (View D):
a. Attach lifting slings to holes in equalizer.
b. Securely attach slings between equalizer and
rotating bed or carbody of assist crane.
3. Remove boom hoist equalizer retaining pins (View B)
from mast top forks.
4. Store equalizer retaining pins (View C) in mast top lugs
(View C).
5. Lift boom hoist equalizer and pull equalizer off forks on
end of mast. Pay out boom hoist wire rope as required.
6. Park assist crane so equalizer is at Dimension A from
end of crawlers (see View A, and Table 4-1
). Equalizer
must be centered with relation to mast to prevent
side loading mast.
Assist crane must provide specified hold-back
forces (B and C, View A and Table 4-1
).
7. Tie a 50 ft (15 m) long tagline to end of each
counterweight strap nearest crane.
8. Using crane setup remote control, fully lower live mast
arms.
9. Verify that all mast strap and counterweight strap
shipping pins are removed and stored.
.
10. Perform Mast Pre-Raising Steps before proceeding.
11. Slowly haul in mast hoist wire rope to raise mast until
straps are taut.
12. Continue to raise mast while paying out boom hoist wire
rope.
NOTE Operator shall match rate of speed at which mast
hoist wire rope is hauled in with rate of speed at
which boom hoist wire rope is paid out. Boom hoist
wire rope must remain slack until mast nears
vertical.
Watch mast stops as mast rises. If necessary,
guide mast stops clear of live mast.
13. As mast nears vertical, tighten boom hoist wire rope as
required so mast moves smoothly past vertical to rear.
NOTE Use taglines to guide counterweight straps clear of
mast stops and live mast as fixed mast lowers.
14. Continue to slowly haul in mast hoist wire rope and pay
out boom hoist wire rope to lower mast to rear.
15. Stop lowering mast when mast stops engage mast stop
pins on rotating bed.
NOTE The MAX-ER mast stop position information
screen will not be available with crane software
version M002066 or newer.
16. While watching indicator rod on mast stops (View F) or
the mast stop box in the main display information screen
(View G), mast up slowly until:
• Indicator rods are flush with ends of indicator tubes
• Indicator arrow (on screen) is in line with green line
17. Move boom hoist equalizer to side so it is clear of boom
assembly area.
Take every precaution to protect wire rope from
damage.
Do not allow wire rope to jump off sheaves (in mast
and equalizer) or otherwise become fouled.
18. Install boom (View H). See Install Boom topic in this
section for instructions.
CAUTION
Wire Rope Damage!
Boom hoist equalizer will tip if it is not properly supported,
possibly resulting in damage to wire rope. Support boom
hoist equalizer properly while raising fixed mast.
WARNING
Mast Damage!
Lower live mast arms before raising fixed mast. Mast can
collapse if arms are up when live mast is lowered.
CAUTION
Mast Damage!
Avoid mast or equalizer damage. Do not raise mast until
all straps are unpinned from mast strap supports.