Manitowoc 2250 MAX-ER 2000, Руководство оператора

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Reference
Only
Manitowoc
Published 01-08-13, Control # 049-05
4-35
2250 MAX-ER 2000 OPERATOR’S MANUAL SET-UP AND INSTALLATION
4
Lower Gantry and Store Mast Hoist
Equalizer
See Figure 4-14 for following procedure.
1. Hook slings from assist crane to connecting holes in end
of mast hoist equalizer.
2. Remove equalizer stop pin (10, View F).
3. Carefully lift equalizer clear of rails with assist crane.
4. Travel, boom up, and swing with assist crane so
equalizer is suspended directly over gantry
approximately 20 – 25 ft (6 – 7,6 m) (View D).
Haul in 2250 mast hoist wire rope at same time as
needed.
Park mast hoist (drum 4).
5. Prepare gantry for lowering.
See Gantry Raising/Lowering in Crane Operator ’s
Manual.
6. Lower equalizer with assist crane until gantry is fully
lowered (View D).
7. Lower equalizer so it lands on gantry equalizer rails.
Haul in mast hoist line while lowering equalizer.
8. Continue to slowly haul in mast hoist line to slide
equalizer under tie down clips (View B).
9. Disconnect sling from equalizer.
10. Slacken mast hoist wire rope so there is no tension
between gantry sheaves and equalizer.
11. Remove pin and rotate mast strap brackets on gantry
from working to stored position (View C).
Remove Strap Rest Assemblies
Reverse assembly steps to remove strap assemblies
(Figure 4-14, View E).
Disassemble Mast
See Figure 4-14 for following procedure.
1. If not already done, lift boom hoist equalizer into position
on forks at end of mast top, and install retaining pins
(View F).
2. Hook chain sling to lifting lugs on mast top (View G).
3. Remove pins from bottom connector holes (View D).
4. Lift mast top to disengage from fixed vertical pin of
upstream insert (View C).
5. Store mast top.
6. Repeat steps 2-5 for mast inserts to up to mast butt.
7. Remove mast butt and mast adapter frame as follows:
a. Hook chain sling to lifting lugs on mast butt.
b. Insert Pin B to secure mast butt to adapter frame for
shipping (View B). It may be necessary to lift mast
butt slightly to align holes.
c. Remove pin from Hole C2 (View B).
d. Remove keeper plate and unpin adapter frame from
rotating bed (Pin A, View B).
e. Store mast butt.
MAX-ER COUNTERWEIGHT INSTALLATION
PROCEDURE
General
The following installation procedures apply to the current
production low profile counterweight boxes (Figure 4-15)
a n d t o t h e p a s t p r o d u c t i o n c o u n t e r w e i g h t b o x e s
(Figure 4-16).
Perform the following steps before installing MAX-ER
counterweight:
• Review MAX-ER Capacity Charts to determine trailer
radius and counterweight arrangement for your lifting
requirements.
• Support trailer on jacks if it is not connected to crane.
• Install trailer pins and axle wedges in proper position for
installation of counterweight.
• Raise and pin strap cylinders in operating position.
An assist crane with appropriate lifting slings, hooks, and
shackles is required for installing the counterweight. The
heaviest box to be lifted is 20,000 lb (9 072 kg).
WARNING
Tipping Hazard!
To prevent trailer from tipping, trailer must be level and
supported on jacks with axle wedges installed if trailer is
NOT ATTACHED to crane.
• Install trailer pins in proper position prior to jacking or
performing other procedures. See instructions in this
section for correct pin and wedge positions.
• Make sure jacking surface supports weight of trailer
and counterweight and provides necessary traction
to prevent jacks from sliding under load.