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Machined parts coated with rust preventive should
be restored to good condition promptly if signs of
rust occur. Immediately remove the original rust
preventive coating with petroleum solvent and clean
with lint-free cloths. Polish any remaining rust from
surface with crocus cloth or fine emery paper and
Model LB
C
1.75
(44)
A
Model LBP
C
1.75
(44)
A
Model LD
B
1.75
(44)
A
Model LDP
B
1.75
(44)
A
All dimensions given in inches (millimeters). Weights given in pounds (kilograms).
®
Series L Dimensions
B
D
E
F
A
B
D
E
F
C
D
E
F
A
C
D
E
A
oil. Do not destroy the continuity of the surfaces.
Thoroughly wipe clean with Tectyl
or the equivalent. For hard to reach internal surfaces
or for occasional use, consider using Tectyl
Rust Preventive, WD-40
®
Size
A
B
C
D
22
39
28
17¼
10
(559)
(991)
(711)
(438)
26
39
35
17½
14
(660)
(991)
(889)
(445)
30
39
40
17½
18
(762)
(991)
(1016)
(445)
30
51
43
23
21
(762)
(1295)
(1092)
(584)
34
51
45½
20½
24
(864)
(1295)
(1156)
(521)
40
63
50
29½
30
(1016)
(1600)
(1270)
(749)
46
63
60
27
36
(1168)
(1600)
(1524)
(686)
52
75
70
5
⁄
33½
8
42
(1321)
(1905)
(1794)
(851)
58
87
70
3
⁄
41
8
48
(1473)
(2210)
(1788)
(1041)
(1054)
64
87
79½
38
54
(1626)
(2210)
(2019)
(965)
(1153)
Size
A
B
C
D
22
38½
28
14
10
(559)
(978)
(711)
(356)
26
40
32
16
14
(660)
(1016)
(813)
(406)
30
46
36
19
18
(762)
(1168)
(914)
(483)
30
46
36
19
21
(762)
(1168)
(914)
(483)
34
49½
40
20
24
(864)
(1257)
(1016)
(508)
40
58
46
23
30
(1016)
(1473)
(1168)
(584)
46
63
51¾
26
36
(1168)
(1600)
(1314)
(660)
52
70½
58
29
42
(1321)
(1791)
(1473)
(737)
58
76½
64
32
48
(1473)
(1943)
(1626)
(813)
(1026)
64
83½
70
35
54
(1626)
(2121)
(1778)
(889)
(1108)
Size
A
B
C
D
60-
17
22
27
13½
(432)
(559)
(686)
(343)
75
80-
19
28
27
13½
(483)
(711)
(686)
(343)
95
100-
22
30
27
13½
(559)
(762)
(686)
(343)
120
Size
A
B
C
D
60-
17
23
11½
(432
(584)
(292)
75
80-
19
25
12½
(483)
(635)
(318)
95
100-
22
28
14
(559)
(711)
(356)
120
Series L: Models LB, LBP, LD, and LDP
®
506 (Ashland Inc.)
®
511M
or the equivalent.
Damper
Roof
Weight
E
F
Size
Opening
17
3¼
12
14½
(432)
(85)
(305)
(368)
18
4
16
18½
(457)
(102)
(406)
(470)
21
4½
18
20½
(533)
(114)
(457)
(521)
23
6
18
20½
(584)
(152)
(457)
(521)
23½
6¾
24
26½
(597)
(171)
(610)
(673)
26
5
⁄
8½
30
32½
8
(676)
(216)
(762)
(826)
32
5
⁄
9¾
36
38½
8
(829)
(248)
(914)
(978)
37
3
⁄
11½
42
44½
8
(949)
(292)
(1067)
(1130)
41½
11
5
⁄
48
50½
8
(295)
(1219)
(1283)
45
3
⁄
12½
54
56½
8
(318)
(1372)
(1435)
Damper
Roof
Weight
E
F
Size
Opening
Alum.
17
32
5
⁄
12
14½
8
(432)
(829)
(305)
(368)
17
26
16
18½
(432)
(660)
(406)
(470)
24½
30
18
20½
(622)
(762)
(457)
(521)
24½
30
18
20½
(622)
(762)
(457)
(521)
23½
34
24
26½
(597)
(864)
(610)
(673)
26½
40
30
32½
(673)
(1016)
(762)
(826)
34
3
⁄
46
36
38½
8
(873)
(1168)
(914)
(978)
38¼
52
42
44½
(972)
(1321)
(1067)
(1130)
40
3
⁄
58
48
50½
8
(1473)
(1219)
(1283)
43
5
⁄
64
54
56½
8
(1626)
(1372)
(1435)
Damper
Roof
Weight
E
F
Size
Opening
13
2
8
10½
(330)
(51)
(203)
(267)
16
4
10
12½
(406)
(102)
(254)
(318)
18
4
12
14½
(457)
(102)
(305)
(368)
Damper
Roof
Weight
E
F
Size
Opening
Alum.
13½
8
10½
—
(343)
(203)
(267)
16½
10
12½
—
(419)
(254)
(318)
18½
12
14½
—
(470)
(305)
(368)
Galv.
56
(25)
81
(37)
135
(61)
145
(66)
188
(85)
249
(113)
338
(153)
396
(180)
430
(195)
596
(270)
99
(45)
116
(53)
179
(81)
191
(86)
239
(108)
318
(144)
444
(201)
530
(240)
579
(263)
780
(354)
Galv.
37
(17)
45
(20)
57
(26)
49
(22)
63
(29)
82
(37)
3
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