Manual RHGSE Operation and Maintenance Manual ZOM-11000-2 v2 rev E
Zephyr International llc
Page 14 of 40 United States Patent # 7,429,031 B1
With one hand operating the hoist control pendant use the other hand to engage the slots in
the handle with the pin on the shaft to rotate the crank handle in the clockwise direction to develop a
small load in the wire rope. Actuate the pendant to start the hoist running in the down direction. Start
cranking slowly and observe the wire rope to insure it is completely seated in the capstan grooves. If it
begins to loosen on the third groove of the top capstan, stop and pull the wire rope down into the
capstan groove and then continue. Run the hoist in the down direction at a speed that allows you to
observe the hoist while cranking in the clockwise direction comfortably. Do not allow the wire rope to
get loose while extending. Extend the wire rope completely; always paying careful attention to the
helicopter hoist and to the condition of the wire rope. If the wire rope snags in the Lubridryer pads for
any reason such as a kink or a broken wire or broken strand; the wire rope will loosen between the top
of the Lubridryer and an increase in crank resistance will be felt. In this event, the wire rope needs to
be replaced; run the wire rope out into the drum and follow the manufacturer’s instructions for
replacing the hoist wire rope. Absent any deficiencies noted during inspection, run the hoist in the
down direction until the helicopter hoist is stopped by the full out limit switches.
6.7) Running the rescue hoist in the up direction (retracting)
Caution: When starting to reel in the load lever must not be fully applied with the load
adjusted to the maximum, this is because the coefficient of static friction is greater then the
coefficient of dynamic friction. If the load lever is fully activated before starting, the RHGSE
will be lifted off of the ground and may cause damage to the hoist, aircraft or to the operator.
If the system does lift off the ground unexpectedly stop lifting with the rescue hoist and lower
the system to the ground and release the load lever. Never try to lower the system by
releasing the load lever when the system is off the ground.
The wheel brakes on the RHGSE should be unlocked to
allow the equipment to center itself under the hoist.
Starting the application of the load
Rotate the crank handle counterclockwise to disengage
the pin, and start the hoist in the up (retracting) direction,
then apply the load lever and begin to increase the load
with the load adjuster. The clutch will start applying torque
to the capstans in a dynamic condition
Apply the load lever and adjust the load if required
(see section 6.8)
With the hoist control pendant run the helicopter hoist in the up
direction. Observe the wrapping of the wire rope on the hoist drum.
Approximately 20 feet before the wire rope is completely retracted
onto the hoist drum, slow down and observe the Rotatub. Stop the
hoist operation when the spooler is in approximately the same
position as starting and there are no more cable wraps in the
Rotatub.
Observe the wire rope at all times.
Stop running immediately if the RHGSE lifts off the
ground and adjust clutch as required.
Caution: When reeling in the crank handle must be disengaged
