內政部空中勤務總隊全球資訊網-英文網內政部空中勤務總隊全球資訊網-英文網

(1) Properties:

1. Model: GOODRICH 76378
2. Net weight of hoist: 98.6lbs
3. Total capacity of cable: 600lbs＝267 daN
4. Total length of cable: 94m (usable length: 90m)
5. Shear capacity of cable: 1,500 daN
6. Working voltage: 28VDC

 

(2) Performance and limits:

1. Lifting speed from 0 to 0.75 m/s
2. Lifting angle: ± 20°
3. The motor switches to low speed (1/3 of full speed) automatically for the last 2m of travel of cable. The speed limit is off only after the cable travels downwards more than 2m.
4. The cable stops when it travels downwards to the red paint section.
5. The end of cable’s downward travel is painted red./li>

Range of limits

1. Ambient temperature: -45 ºC ~ 54 ºC
2. Continuous hoisting: 6 upward travels with full load +6 downward travels with half load and 1 downward travel with full load (2 continuous hosting operations shall be separated by a 45-minute rest) (76378-060).
3. Number of hoisting: unlimited; stop when the red indicator lights up on the control box (76378-260).

 

(3) Hoist assembly:

1. Hoist body
2. Hoist control joystick
3. Hoist control box
4. Steel cable
5. Fixing ring

 

 

        Hoist control box: (the box controls safety and protection settings)

1. Automatic speed regulation
2. Warning system
3. Safety shutoff
4. Logic circuit

 

        Fixing ring specs

1. 4 in the cabin
2. 2 on the hoist
3. Working capacity: 2,500daN
4. Working capacity of cabin floor buckle: 1,500kg

(4) Cause of hoist overheating:

1. The cable is easily overheated as it travels downwards in low speed.
2. It takes more power out of the motor to rotate the pulley upwards; the pulley is easily overheated when rotating downwards.
3. The greater the load, the more easily to overheat
4. An indicator will flash when the hoist is overheating.
5. Stop‧Turn power off‧Wait until it is cooled off
6. No temperature limit for cable

 

(5) Warning indicators:

1. 150 ºC ≦ Temp < 175 ºC : the red indicator flashes
2. 175 ºC = Temp  : the red indicator flashes
3. 175 ºC > Temp  : the hoist stops; the power has to be turned off for a period of time to allow the hoist to cool off before turning the power on to resume hoisting.

 

(6) Other faults:

1. Green indicator OFF (hoist not working)   
   A. Faulty connection to power supply
   B. Blown fuse
   C. Wiring damage
   D. Faulty circuit in the control box 
2. Green indicator OFF (but hoist is working) blown bulb

   Hoist overheating warning indicator and power indicator

   

 

(7) Temperature limit warning indicator:

1. Red indicator on     
   A. Motor temperature circuit activated
   B. Motor temperature circuit open
   C. Connection circuit damaged
   D. Control box damaged
2. Red indicator flashing     
   A. Motor overheated

(8) Cable structure:

1. Every cable is made by twisting 19 strands of 7 wires together.
2. The cable is made of nickel steel but can still be rusted.
3. The inner strands are more vulnerable since they are subject directly to tension and pulling.
4. The strands is 4.5~4.8mm and wires 0.30mm~0.35mmin diameter

 

(9) Notes for exterior check of cable:

 

(10) Cable head structure:

(1) Auto-gyration:

 

(2) Pendulum effect:

 

 

(3) Notes:

1. The aircraft, cable and passenger are perpendicular to one another as the passenger is moving upwards.
2. If auto-gyration occurs as the passenger moves up, the aircraft may slow down to reduce the gyration.
3. If pendulum effect occurs as the passenger moves up, more cable can be released or the aircraft may slow down to reduce the effect.

1. Lifting hoist  
2. Rappelling
3. Basket 
4. Rescue seat
5. Stretcher (titanium alloy) 
6. Stretcher (stainless steel – not applicable as it easily rotates)