MHD56037 - Edition 5 9
Table 2–Winch Bolt Hole Mounting Dimensions
(Dwg. MHP2123)
‘A’ = 1.6 feet (0.5 metre) per inch of drum length:
‘A’ = 19.2 feet (5.85 metres) for 12 inch drum.
‘A’ = 25.6 feet (7.80 metres) for 16 inch drum.
‘A’ = 38.4 feet (11.7 metres) for 24 inch drum.
‘A’ = 48.0 feet (14.6 metres) for 30 inch drum.
‘A’ = 57.6 feet (17.5 metres) for 36 inch drum.
Notes:
1. Maintain a minimum of 3 tight wraps of wire rope on drum at
all times.
2. Ensure wire rope does not exceed top layer requirement.
Refer to “SPECIFICATIONS” section.
Wire Rope
CAUTION
• Maintain at least 3 tight wraps of wire rope on drum at all
times.
• Install wire rope to come off drum for overwind operation.
(normal application.) Refer to Dwg. MHP2124
on page 9.
(Dwg. MHP2124)
NOTICE
• For underwound applications order the “U” option or
contact factory prior to operation.
Wire Rope Selection
Consult a reputable wire rope manufacturer or distributor for
assistance in selecting appropriate type and size of wire rope and,
where necessary, a protective coating. Use a wire rope which
provides an adequate safety factor to handle actual working load
and that meets all applicable industry, trade association, federal,
state and local regulations.
When considering wire rope requirements the actual working load
must include not only static or dead load but also loads resulting
from acceleration, retardation and shock load. Consideration must
also be given to the size of winch wire rope drum, sheaves and
method of reeving. Wire rope construction should be 6 X 19 or 6
X 37 IWRC EIPS right regular lay. Refer to Table 3
on page 9 for
minimum and maximum recommended wire rope sizes.
Table 3–Minimum and Maximum Wire Rope Size
Dimension
Drum Length (inches)
12 16 24 30 36*
“A” FA5
inch 31.25
- - -
mm 794
“A” FA5T
inch 34.25
mm 870
“B” (with
Drum Brake)
inch 7.5 9 10.5 10 11.5
mm 190 229 267 254 292
“B” (without
Drum Brake)
inch 6 6.25 9 12 14
mm 152 159 229 305 356
“C”
inch 13/16
mm 20
Bolt Hole Qty each
Side Rail
4 5
* 36 inch drum length applies to FA5T (tall flange) only.
Model
Minimum Maximum
inch mm inch mm
FA5 5/8 16
7/8 22
FA5T 3/4 20
Note: Maximum wire rope diameter is limited by size of wire
rope anchor hole. Refer to parts list for correct wire rope anchor
part numbers.