SETUP AND INSTALLATION 2250 OPERATOR MANUAL
4-8
Published 06-24-16, Control # 241-01
SPECIAL BLOCKING REQUIREMENTS
General
The control system on some MAX-ER–prepared cranes has
been modified to allow simultaneous operation of the boom
hoist, travel, and drum 9 when operating in the MAX-ER
mode. To accommodate this modification, it was necessary
to extend the hydraulic tubing in the center of the adapter
frame approximately 152 mm (6 in) higher than normal.
Blocking
See Figure 4-5 for more information.
During crane assembly and disassembly, it may be
necessary to block under the jack pads of the rotating bed
jacking cylinders to provide sufficient clearance between the
rotating bed and the tubing in the adapter frame. The amount
of blocking required depends on the height of your trailer
deck above ground level.
CAUTION
Avoid Equipment Damage!
Failing to observe the precautions will result in damage to
hydraulic tubes extending out of the rotating bed adapter
frame.
Block Under Jack
Pads if Required
(4 places)
Carbody and
Adapter Frame
Hydraulic
Tubes
Rotating Bed
Rotating Bed
Jacking
Cylinder
Trailer
Ground Line
A1202
FIGURE 4-5
Trailer Deck Height
Allows Clearance
Above Hydraulic
Tubes
0,8 m (2 ft 9 in) 51 mm (2 in) No Blocking Required Under Jack Pads
0,6 m (2 ft)—Minimum 279 mm (11 in) No Blocking Required Under Jack Pads
1,1 m (3 ft 6 in)—Maximum 114 mm (4-1/2 in) 0,3 m (1 ft) Minimum Blocking Required
Under Jack Pads
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