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SET-UP AND INSTALLATION
2250 MAX-ER 2000 OPERATOR’S MANUAL
4-60
Published 01-08-13, Control # 049-05
Install Intermediate Suspension — #79-44 Boom
See Figure 4-28 and #79-44 Boom Rigging Assembly
Drawing for following procedure.
1.
Connect straps as shown in Views A and B.
2.
Pin two intermediate suspension pendants (P1, View C)
(one each side) to mast links (11) on mast butt. Mast
stops (10) and links (11) should be installed before mast
is raised.
3.
Connect six additional pendants (P1) (three each side)
to pendants pinned to mast links.
4.
Connect intermediate suspension pendants (P2) to
pendants (P1).
5.
Route pendants (P2) over sheaves (4, View B). Be sure
to install guard pins (5).
6.
Unpin suspension links (12, View E) from storage
position.
7.
Route pendants (P2) through transition insert (View D)
and pin to suspension links (12, View F).
8.
Install wire rope spreader (14, View A) between shafts of
sheaves (4). Adjust spreader with eye bolts so distance
between shafts is 5 ft 6 in (1,7 m).
Load lines must be routed under wire rope spreader.
FIGURE 4-28
Item
Description
1
Strap, Insert
2
Pin with Collar (Note 1)
3
Strap 11 ft 10-3/4 in (3,6 m)
4
Sheave
5
Pendant Guard Pin (Note 2)
6
Strap 3 ft 1-1/2 in (0,95 m)
7
Pin with Collar (Note 1)
8
Strap, Insert
9
#79-44 Transition Insert
10
Mast Stop
11
Mast Link
12
Boom Suspension Link
13
Pendant Pin
14
Wire Rope Spreader with Eye
Bolts
P1
Pendant 54 ft 2 in (16,5 m)
P2
Pendant 53 ft 3 in (16,4 m)
NOTE 1:
Collars must face inside of
boom.
NOTE 2:
Pins (5) must be installed
to prevent pendants P2
(View B) from jumping off
sheaves.
View A
View C
View E
(storage)
P1
2
1
3
3
5
6
3
7
7
8
6
5
4
P2
View F
(operation)
P2
P2
12
View B
9
A1193
Mast
5 ft 6 in (1,7 m)
Between Pins
14
10
11
13
12
P2
13
4
5
View D
CAUTION
Avoid Boom Damage!
Intermediate suspension is required for boom lengths of
320 ft (98 m) – 400 ft (122 m). Structural damage during
boom raising/lowering can occur if it is not installed.