Manitowoc 2250 MAX-ER 2000, Руководство оператора

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Reference
Only
Manitowoc
Published 01-08-13, Control # 049-05
4-15
2250 MAX-ER 2000 OPERATOR’S MANUAL SET-UP AND INSTALLATION
4
Raise Mast
General
A holdback is required to raise the mast. One of two methods
can be used:
• Assist crane to which the boom hoist equalizer is
securely attached (Figure 4-6, View D). The assist crane
must be capable of providing horizontal and vertical
holdback forces listed in the table in Figure 4-6.
Assist crane can tip if it is too small or improperly
positioned.
• Fully rigged boom 120 ft (36,6 m) minimum.
If desired, the MAX-ER mast can be used as a boom to
assemble and install the MAX-ER boom. If the mast will be
used as a boom, see Mast Capacities for Self-Assembly and
Disassembly for instructions.
The following procedure contains steps for raising the mast
using the boom as a holdback. The same procedure applies
if an assist crane is used as the holdback with the following
exceptions:
• Securely attach boom hoist equalizer to proper size
assist crane.
• Park assist crane approximately 15 ft (4,6 m) from
equalizer.
• Install boom after mast is fully raised.
.
The SETUP mode must be selected and confirmed (MAX-
ER mode turned off) in order to raise the mast. In this mode,
the 80° mast stop limit is automatically bypassed. The
following controls are used to raise the mast:
• Drum 2 (boom hoist).
• Drum 4 (mast hoist).
• Drum 2 and Drum 4 park and pawl switches.
A qualified operator is required to raise the mast. The
operator must be experienced with the 2250 liftcrane MAX-
ER 2000 attachment and thoroughly familiar with their
operation. S ee the Operating Controls in the Crane
Operator’s Manual for identification and operation of the
controls.
A qualified signal person is required to give signals to the
operator.
Connect Hydraulic Hoses
See Figure 4-6 for following procedure.
1. Make sure accumulator is stamped for 2,000 psi (138
bar) pre-charge.
FIGURE 4-6 continued
View D
L
Boom Hoist
Equalizer
Assist Crane (or
other holdback)
Dimension L Horizontal Vertical
ft m lb kN lb kN
120 36,6 13,450 60 10,940 49
150 45,7 13,450 60 9,230 41
200 61,0 13,450 60 7,320 33
250 76,2 13,450 60 6,070 27
NOTE:
Holdback forces are with equalizer attached
to holdback 3 ft (0,9 m) above ground.
CAUTION
Wire Rope/Sheave Damage!
Do not allow boom hoist equalizer to drag across ground
while raising mast with assist crane as holdback. Keep
equalizer level.