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 TM 55-1905-223-24-10
hydraulic pump by a drive coupling. Energized by the drive coupling, the hydraulic pump circulates hydraulic fluid from
the reservoir, through valves and pipes to the hydraulic motor of the winch assembly.
1-9. Equipment Data. Reference data for the bow ramp winch assembly is given in Table 1-1. Also see the
equipment data given in the operator's manual, TM 55-1905-223-10.
Table 1-1. Bow Ramp Winch Equipment Data
Characteristics
Reference Data
Winch Assembly
Model FH 5-20
Type
Force 5
Dimensions
Length
47 in
Length with emergency hand crank
installed
62 in
Width
35 in
Height
29.50 in
Weight
Winch drum
380 lb
Inboard upright
130 lb
Outboard upright
100 lb
Side frames (each)
61 lb
Hydraulic motor
41 lb
Automatic brake
16 lb
Gear reducer
315 lb
Total
1550 lb
Winch Safety Factor
5:1 at 22,000 lb combined line
pull
Power Requirements
Hydraulic Flow
30.50 gpm
Normal working pressure
2,060 psi
Maximum working pressure-
3,000 psi
Electrical
Voltages ......120V
240V
480V
600V
Limit switches
60Hz amps
60
30
15
12
brake amps
6
3
1.5
1.2
Environmental
Operating temperature
-22 F (-30 C) to 140 F (60 C)
Storage temperature
-22 F (-30 C) to 140 F (60 C)
Drum Grooving and Spooling
Two 3/4-in dia. lines
Drum Anchoring
At both outboard ends of drum.
1-4
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