A25317-A-1119
page 22
Owner's Manual for Thern 5FT20 and 5FT25 Captain Series Stationary Davit Cranes
5FT20 Series Lift Below Floor
2
Lift Below
1
Floor
Wire Rope
Diameter
Wire Rope
3
Length
Winch
Configurations
Minimum (D4)
Maximum (D1)
M1
M2
M3
M4
E2
E3
E4
(ft)
(m)
(ft)
(m)
(in)
(mm)
(ft)
(m)
9
2.7
14
4.2
1/4
6
36
10.9
x
x
x
x
x
x
x
18
5.4
23
7.0
1/4
6
45
13.7
x
x
x
x
x
x
x
33
10.0
38
11.5
1/4
6
60
18.2
x
x
x
x
x
x
x
48
14.6
53
16.1
1/4
6
75
22.8
-
x
-
x
x
x
x
63
19.2
68
20.7
1/4
6
90
27.4
-
-
-
x
-
x
x
93
28.3
98
29.8
1/4
6
120
36.5
-
-
-
x
-
x
x
9
2.7
14
4.2
5/16
8
36
10.9
x
4
x
4
x
4
x
x
4
x
x
18
5.4
23
7.0
5/16
8
45
13.7
x
4
x
4
x
4
x
x
4
x
x
33
10.0
38
11.5
5/16
8
60
18.2
-
-
-
x
-
x
x
48
14.6
53
16.1
5/16
8
75
22.8
-
-
-
x
-
x
x
63
19.2
68
20.7
5/16
8
90
27.4
-
-
-
x
-
x
x
93
28.3
98
29.8
5/16
8
120
36.5
-
-
-
x
-
x
-
9
2.7
14
4.2
3/8
10
36
10.9
-
-
-
x
-
x
-
18
5.4
23
7.0
3/8
10
45
13.7
-
-
-
x
-
x
-
33
10.0
38
11.5
3/8
10
60
18.2
-
-
-
x
-
x
-
48
14.6
53
16.1
3/8
10
75
22.8
-
-
-
x
-
x
-
63
19.2
68
20.7
3/8
10
90
27.4
-
-
-
x
-
x
-
93
28.3
98
29.8
3/8
10
120
36.5
-
-
-
-
-
x
-
5FT20 Series Load Rating, Hook Height and Reach
2
* With M4 and E3 winches only: First Layer Load Rating applies to all Drum Layers.
* With 5FT20TPL Two-Part Line Kit: First Layer Load Rating applies to all Drum Layers.
1
Lift below floor level varies depending on boom position. For longer lifts, including use with
two-part lines kits, please contact factory.
2
Performance Characteristics are for standard products referred to in this manual. Non-standard
products may vary from the original design. Contact Thern, Inc. for this information.
3
Wire rope assemblies include a hook and a swaged ball fitting to work with quick disconnect
anchor on the winch. 316 stainless wire rope is available. Please contact the factory.
4
5/16" (8 mm) wire rope assemblies with swaged ball fitting do not fit the winch quick
disconnect anchor. Contact the factory to specify wire rope with an unfinished end.
IMPORTANT:
It is the owner or operator's responsibility to
determine the suitability of the equipment to its
intended use. Study all applicable codes, manuals
and regulations. Be sure to read the Owner's
Manual supplied with the equipment before
operating it.
Boom
Position
* First Layer
* Mid Drum
* Full Drum
Hook Reach Hook Height
Load Rating
Load Rating
Load Rating
lbs
(kg)
(lbs)
(kg)
(lbs)
(kg)
inch (mm) inch (mm)
B
LU
E
R
A
N
G
E
A-1
1700
(770)
1500
(680)
1200
(540)
62
(1574)
56
(1422)
A-2
1400
(635)
1400
(635)
1200
(540)
75
(1905)
56
(1422)
A-3
1200
(540)
1200
(540)
1200
(540)
87
(2210)
56
(1422)
A-4
1000
(450)
1000
(450)
1000
(450)
100 (2540)
56
(1422)
G
R
EE
N
R
A
N
G
E
B-1
1800
(815)
1500
(680)
1200
(540)
57
(1447)
80
(2032)
B-2
1500
(680)
1500
(680)
1200
(540)
69
(1752)
85
(2159)
B-3
1350
(610)
1350
(610)
1200
(540)
81
(2057)
90
(2286)
B-4
1100
(500)
1100
(500)
1100
(500)
93
(2362)
94
(2387)
YE
LL
O
W
R
A
N
G
E
C-1
2000
(905)
1500
(680)
1200
(540)
53
(1346)
88
(2235)
C-2
1650
(750)
1500
(680)
1200
(540)
64
(1625)
95
(2413)
C-3
1500
(680)
1500
(680)
1200
(540)
74
(1879) 102 (2590)
C-4
1200
(540)
1200
(540)
1200
(540)
85
(2159) 108 (2743)
D-1
2000
(905)
1500
(680)
1200
(540)
45
(1143)
98
(2489)
D-2
1650
(750)
1500
(680)
1200
(540)
54
(1371) 107 (2717)
D-3
1500
(680)
1500
(680)
1200
(540)
63
(1600) 116 (2946)
D-4
1200
(540)
1200
(540)
1200
(540)
72
(1828) 125 (3175)
