Manitowoc NATIONAL CRANE 900A - Page 71

2-11
"

877725
*
1. Operate with jib by radius when main boom is
fully extended. If necessary increase boom
angle to maintain loaded radius.
2. Operate with jib by boom angle when main boom
is not fully extended. Do not exceed rated jib
capacities at any reduced boom lengths.
3. Capacities do not exceed 85% stability.
4. Shaded areas are structurally limited capacities.
• Do not deadhead line block
against boom tip when extend-
ing boom.
• Keep at least 3 wraps of
loadline on drum at all times.
• Use only 9/16" diameter
rotation resistant cable with
38,500 lb breaking strength on
this machine.
• Maximum capacity with "burst
of speed" is 3,000 lb.

X
MAX. PULL
7,700 lb
[Z \ ] _
MAX. PULL
15,400 lb
MAX. PULL
23,100 lb
MAX. PULL
30,800 lb
MAX. PULL
38,500 lb
MAX. PULL
46,200 lb
q
MAX. PULL
52,000 lb


2+  x
2^5j
5
8
10
12
14
16
20
25
30
35
40
45
50
55
60
65
70
75
80
85
77
70.5
66
60.5
55.5
50
38.5
0
52,000
35,900
30,600
25,900
21,600
19,300
14,800
6,400
700
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100


^j

!
"
Zq
!
^5j


^j

!
"
\\
x
^5j

!
"

!
^5j

!
"

!
"

!
"

!
"
A
\Z
!
^5j
0
RADIUS IN FEET
10080604020
120
100
80
60
0
20
40
27
1ST JIB
25FT
90
78
66
54
42
80°
50°
30°
20°
10°
-10°
0°

z
x
+

B
]\
!
^5j
C
__
!
^5j
D
q`
!
^5j
A B C D
STRUCTURAL LENGTH LIMIT
38°

!
"
Z]
x
^5j
75
72
69
66
59.5
51.5
41.5
30
0
26,900
23,000
20,100
17,800
14,600
11,300
9,050
7,050
3,000
400
79
77
74
72.5
67.5
61.5
55
48.5
41
31.5
17.5
0
25,300
21,600
20,100
16,700
14,500
11,000
8,900
7,350
6,100
4,900
3,850
1,600
300
78
76
72.5
68
62.5
58
52.5
46.5
40
32.5
22
0
18,100
15,700
13,600
11,000
9,000
7,200
6,000
5,100
4,350
3,550
2,650
700
200
78.5
75.5
71.5
67.5
64
59.5
55
50.5
45
39.5
33
24.5
11
14,700
12,500
10,300
8,600
7,150
5,850
4,900
4,250
3,650
3,100
2,550
1,950
1,050
200
78
74.5
71
68
64.5
61
57
53
48.
5
44
39
33.5
26.5
16.
5
11,500
9,300
7,800
6,700
5,850
4,900
4,250
3,700
3,250
2,800
2,350
1,950
1,550
950
100
75
72.5
70
67
64.5
61.5
59
56
52.5
49
45.5
42
38
4,850
4,350
3,900
3,500
3,150
2,800
2,500
2,200
1,750
1,400
1,100
800
550
3,300
3,250
3,200
3,050
2,750
2,400
2,150
1,900
1,700
1,550
1,400
1,250
1,000
800
600
40°
70°
60°
42°
2ND JIB
44FT
120
140
=!
^5j
Downhaul weight ______ 150
One sheave block _____ 305
Two sheave block _____ 355
Three sheave block ____ 575
2+

^{Xqj
"!
!"2+
01 MAIN BOOM - NO JIB STOWED
02 MAIN BOOM - JIB STOWED
03 25 FT TELE JIB
04 44 FT TELE JIB
11 MAN BASKET ON MAIN BOOM
12 MAN BASKET ON 25 FT TELE JIB
13 MAN BASKET ON 44 FT TELE JIB
77.5
75
73
71
69
66.5
64
61.5
59
56.5
54
51.5
48
45
42

2+
\\x
!
Reference Only