LIFTING CHARTS - Boom Trucks
NATIONAL MODEL 990 - 25 TON CAPACITY
990
1
LMI OPERATING CODE SWITCH
SWITCH
POSITION
(REF #'17)
01
02
03
04
11
12
13
990
OPERATING MODE
MAIN BOOM - NO JIB STOWED
MAIN BOOM - JIB STOWED
27 FT TELE JIB
48 FT TELE JIB
MAN BASKET ON MAIN BOOM
MAN BASKET ON 27 FT TELE JIB
MAN BASKET ON 48 FT TELE JIB
NOTE:
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.
2
NO JIB LOAD RATINGS
LOAD LOADED
RADIUS BOOM
(FEET)
ANGLE
*4.75
5
8
10
12
14
16
20
25
30
35
40
45
50
55
60
65
70
75
80
85
79.4
79
72
67
62
57
51
37
27FT
BOOM
(LBS)
50,000
46,000
33,000
27,400
23,500
20,500
18,100
14,500
LOADED
ANGLE
BOOM
42FT
BOOM
(LBS)
LOADED
BOOM
ANGLE
54FT
BOOM
(LBS)
76.5
73.5
70.5
67.5
61
52.5
43
30
23,900
20,900
18,100
16,100
13,100
10,500
8,650
6,950
80
77.5
75.5
73.5
68.5
62.5
56
49
41
31.5
17
22,300
19,100
16,700
14,800
12,000
9,700
8,100
6,700
5,700
4,700
3,400
LOADED
BOOM
ANGLE
66FT
BOOM
(LBS)
LOADED
BOOM
ANGLE
78FT
BOOM
(LBS)
LOADED
BOOM
ANGLE
90FT
BOOM
(LBS)
LOADLINE EQUIPMENT
DEDUCT
DOWNHAUL WEIGHT= 150
ONE SHEAVE BLOCK=200
79
77
73
68.5
63.5
58.5
53
47
40.5
32.5
22
15,400
13,500
11,000
8,900
7,300
6,200
5,300
4,600
3,850
3,200
2,450
79.5
76.5
72.5
68.5
64.5
60
55.5
51
45.5
40
33
25
11
12,600
10,200
8,200
6,700
5,650
4,850
4,200
3,700
3,200
2,700
2,250
1,750
900
TWO SHEAVE BLOCK= 355
79
75.5
72
68.5
65
61.5
57.5
53.5
49
44.5
39.5
34
27
17
9,600
7,700
6,200
5,200
4,500
3,900
3,350
2,900
2,500
2,150
1,800
1,450
1,100
600
THREE SHEAVE BLOCK= 530
* REQUIRES 6x25 WIRE ROPE OPTION
990
3
WITH 48FT JIB LOAD RATINGS
LOAD LOADED
RADIUS BOOM
(FEET)
ANGLE
*4.75
5
8
10
12
14
16
20
25
30
35
40
45
50
55
60
65
70
75
80
85
79.4
79
72
67
62
57
51
37
0
27FT
BOOM
(LBS)
50,000
46,000
32,300
26,700
22,800
19,800
17,400
13,800
6,500
LOADED
ANGLE
BOOM
42FT
BOOM
(LBS)
LOADED
BOOM
ANGLE
54FT
BOOM
(LBS)
76.5
73.5
70.5
67.5
61
52.5
43
30
23,500
20,500
17,700
15,700
12,700
10,100
8,250
6,550
80
77.5
75.5
73.5
68.5
62.5
56
49
41
31.5
17
22,000
18,800
16,400
14,500
11,700
9,400
7,800
6,400
5,400
4,400
3,100
0
3,000
0
1,600
LOADED
BOOM
ANGLE
LOADED
BOOM
ANGLE
78FT
BOOM
(LBS)
LOADED
BOOM
ANGLE
90FT
BOOM
(LBS)
LOADLINE EQUIPMENT
DEDUCT
DOWNHAUL WEIGHT= 150
ADD TO
CAPACITIES
700
WHEN NO JIB
STOWED (LBS)
* REQUIRES 6x25 WIRE ROPE OPTION
400
ONE SHEAVE BLOCK=200
79
77
73
68.5
63.5
58.5
53
47
40.5
32.5
22
15,200
13,300
10,800
8,700
7,100
6,000
5,100
4,400
3,650
3,000
2,250
0
700
300
30
35
40
45
50
55
60
65
70
75
80
85
90
79.5
76.5
72.5
68.5
64.5
60
55.5
51
45.5
40
33
25
11
200
LOAD LOADED
RADIUS BOOM
(FEET)
ANGLE
990
66FT
BOOM
(LBS)
77
74.5
72
69.0
66.5
63.5
60.5
57.5
54.5
51.5
48
27FT
JIB
(LBS)
4,800
4,300
3,650
3,000
2,450
2,000
1,600
1,300
1,000
750
500
12,400
10,000
8,000
6,500
5,450
4,650
4,000
3,500
3,000
2,500
2,050
1,550
700
200
LOADED
ANGLE
BOOM
79.5
77.5
75.5
73.5
71.5
69.5
67
64.5
62
59.5
57
54
51
TWO SHEAVE BLOCK= 355
79
75.5
72
68.5
65
61.5
57.5
53.5
49
44.5
39.5
34
27
17
9,500
7,600
6,100
5,100
4,400
3,800
3,250
2,800
2,400
2,050
1,700
1,350
1,000
500
THREE SHEAVE BLOCK= 530
100
42FT
JIB
(LBS)
3,100
2,900
2,700
2,500
2,300
2,100
1,800
1,500
1,250
1,050
850
650
450
4
BOOM TRUCK #
23 - 7 - 618
23 - 7 - 619
23 - 7 - 628
990
L.O.A
36' - 5''
36' - 5''
36' - 4''
OVERHANG
NA
NA
22''
DECK
8' x 20'
8' x 20'
8' x 20'
5