HIGH PERFORMANCE RESCUE HOIST ASSEMBLY
OPERATION UNDER USUAL CONDITIONS
SECURITY MEASURES FOR ELECTRONIC DATA
After installing a cable and BEFORE performing any hoist operation with
personnel, cable SHALL be reseated by installing hoist in a UH-1 or UH-60
and performing a minimum of one full cable length extension and lift using a
250 to 600 lbs. dummy load.
It is the hoist operator's responsibility to assure that hoist cable does not
contact any portion of aircraft. Rescue hoist cable must be kept clear of all
parts of aircraft and free from other external obstacles when operating hoist.
Cable abrasion during hoist operations can lead to cable failure. If cable
contact or snagging occurs, interrupt hoist operations and inspect cable for
damage in accordance with applicable procedures. If any broken wires,
unraveling, or kinks are observed, hoisting operations should be discontinued
and cable replaced.
Reeling a kinked/damaged cable into hoist may cause a hoist jam condition
when extension is attempted, rendering hoist inoperative.
The hoist operator is responsible for maintaining stability of hoisted load by use of hoist controls, ICS calls to pilot,
and physical control of cable. For minor oscillation (linear or circular swing), stop retraction, and apply hand
motion to cable in direction opposite to oscillation. For significant oscillation, stop retraction, start extension, or call
for pilot to lower aircraft.
If oscillation is not quickly stopped, it may become unmanageable. Retraction of
an oscillating load will only aggravate motion.
All crew members should watch for shock loads, jerks, or snaps that impart high loads on cable. If observed,
hoisting should be interrupted and cable inspection undertaken to verify integrity (no broken wires, unraveling, or
kinks) before resuming operations.
Do not execute live hoisting before cable reseat has been performed. After a
rescue hoist has had a new or used hoist cable installed, hoist shall be installed
on UH-1 or UH-60 aircraft and one or more lifts, with full cable length, shall be
performed using a dummy load of 250 to 600 lbs.
1. Check oil level in boomhead and winch assembly.
2. Release reaction arm and pivot hoist to operating position.
3. Return hoist to stowed position and secure reaction arm.
4. Check Upper Attachment, ensuring safety clip is installed.
5. Check Lower Attachment: Mounting plates, pip pins, and star plate.