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4.9 RESCUE HOIST.
The rescue hoist system (Figure 4-17) consists of a hoist assembly, control section, relays, circuit breakers, and nec-essary electrical wiring. The hoist has a capacity of 600 pounds, is electrically powered from the No. 1 ac and dc primary buses through circuit breakers labeled HOIST PWR, and speed is variable from zero to 350 fpm. It is supported by a .xed tubular strut above the cabin door which is bolted to a support .tting on the fuselage. The hoist contains 290 usable feet of cable and has a guillotine-type cable cutter and an automatic cable brake. The rescue hoist system receives power through the No. 1 ac and dc primary buses through circuit breakers labeled HOIST PWR, and controlled from the No. 1 dc primary bus through a circuit breaker labeled HOIST CONTR.
4.9.1 Hoist Control Panel. There are two control pan-els (Figure 4-17.), one is located in the cockpit on the rear of the lower console and the other is in the right cabin aft of the cabin door. The HOIST POWER switch is located on the pilot’s hoist control panel. The control panel also con-tains a PILOT OVERRIDE-UP-DOWN switch which al-lows the pilot to override any crew hoist command and operate the hoist at a .xed speed. The hoist cable can be cut from the cockpit via the CABLE CUT switch. The CABLE CUT switch is covered to avoid accidental .ring of the cable cutter. The crew control panel located in the cabin, contains a ARM-TEST switch, SQUIB TEST light, SEARCH LIGHT switch, and a covered CABLE CUT switch.
4.9.2 Rescue Hoist Pendant. The crewmember’s res-cue hoist control pendant (Figure 4-17.), in the aft cabin, contains three lighted indicators labeled, FULL IN, FULL OUT, and MTR HOT. The pendant also contains a direc-tion and speed thumbwheel labeled UP-OFF-DN, cable speed is directly proportional the amount of thumbwheel de.ection. The search light control switch labeled SCHLT-FWD-AFT-LEFT-RIGHT allows control of the search light from the cabin. A cable length indicator labeled CABLE-FEET, indicates the amount of cable that is paid out.

The cable pay out reading is for reference only, cable stretch varies with the load at-tached to the end of it and also varies with the amount of cable paid out.

4.9.3 Controls and Function. The rescue hoist control system (Figure 4-17.) has all the necessary controls for op-
erating the hoist from the cockpit or the cabin. The function of each control is as follows:
CONTROL/  FUNCTION 
INDICATOR 
HOIST POWER  Turns on power to the hoist when 
ON-OFF switch  in the ON position. Turns off 
power to the hoist when in the OFF 
position. 
PILOT OVER- Provides the pilot with the 
RIDE UP-DOWN  capability to override any hoist 
switch  command and operate the hoist up 
or down at a .xed speed. 
CABLE CUT  Controls cable cutter .ring circuit. 
switch (cockpit/ 
cabin) 
SEARCH LIGHT 
switch 
ON/NORMAL  Turns on power to the searchlight. 
position 
ON/NVG  Turns on power to the NVG 
position  compatible searchlight. 
OFF position  Turns power off to both searchlight 
modes. 
ARM-TEST switch  Tests the cable cut squib circuit. 
ARM position  Arms the cable cut circuit. 
TEST position  Tests the cable cut squib circuit. 
SQUIB TEST light  PRESS TO TEST, tests the light 
only. 
FULL IN light  Illuminates when the hoist cable is 
in the full in position. 

C
A
HOIST CABLE CUT POWER SWITCH SWITCH

B
HOIST PILOT HOIST
CABLE
OVERRIDE POWER UP ON
A
DOWN OFF CUT
FULL IN
CABLE.FEET

PILOT’S CONTROL PANEL 000
UP
　
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