8146-A, 6-29-99/L
Page 3 of 3
2250 SERIES 2
Luffing Jib
Raising Procedure
For Combinations Requiring Outside Assist
Luffing Jib No. 133 or No. 133A On
Boom No. 44 with Heavy Lift Top
Manitowoc Cranes, Inc.
Manitowoc, Wisconsin 54220 U.S.A.
Maximum Boom And Luffing Jib Lengths Lifted With Assist
Over Front of Blocked Crawlers Using Jack-Knife Method
Boom Length
Luffing Jib Length - Ft. (m)
110
(33.5)
120
(36.6)
130
(39.6)
140
(42.7)
150
(45.7)
160
(48.8)
170
(51.8)
180
(54.9)
190
(57.9)
200
(61.0)
Feet
Meters
Angle To Which Boom Must Be Assisted - Degrees
210
64.0
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15
15
15
20
20
220
67.1
40*
40*
40*
20
25
25
25
25
30
30
230
70.1
45
45
45
45
50
50
50
55
55
55
240
73.2
45
50
50
50
55
55
55
55
55
60
250
76.2
50
50
55
55
55
55
55
60
60
60
Load blocks, hook and weight ball on ground until boom and luffing jib are erected to maximum radius shown on
capacity chart which has adequate capacity to handle them.
* Luffing jib point rollers lift off ground requiring higher assist angle.
Assist Crane Requirements
Boom Length
Capacity Required
of Assist Crane
Recommended
Assist Crane
Boom Length
Feet
Meters
Lbs.
Kilograms
Feet
Meters
210
64.0
54,000
24 490
140
42.7
220
67.1
67,000
30 390
210
64.0
230
70.1
94,000
42 640
250
76.2
240
73.2
102,000
46 270
270
82.3
250
76.2
102,000
46 270
280
85.3
