De-reeving Primary Suspension Wire Rope
For hoists equipped with the optional secondary wire rope, the secondary wire rope must be removed before
the primary wire rope is removed.
•
WARNING!
To prevent hoists and platform from tipping and to avoid injuries, ensure that the platform is
properly supported on a stable, fl at surface before putting slack in the primary suspension wire rope.
• Push in the
DOWN operation button
to wind the primary suspension wire rope out of the hoist. When the wire
rope stops moving, pull the wire rope upward out of the overspeed safety lock
16
SLOWLY to avoid tripping the
overspeed brake. To release the overspeed brake, run the hoist
UP and turn the overspeed brake RESET lever
17
clockwise in the UNLOCK direction.
De-reeving Secondary Suspension Wire Rope
• In order to remove the optional secondary suspension wire rope, there must be NO SLACK on the primary
suspension wire rope and the PLATFORM MUST BE SUPPORTED on a fl at, stable surface.
• Remove the counterweight from the end of the secondary suspension wire rope.
• P
ull the secondary suspension wire rope out of the ISL
11
by hand.
• If necessary, the primary suspension wire rope can now be removed from the hoist.
Resetting the Overload
• Push in the emergency stop button
on the pendant and wait until the
RED
light on the electrical box goes out.
• Switch the unit on again by turning the emergency stop button clockwise until it pops out.
Daily Testing and Inspection
• Before operating the hoist, inspect all of the following:
Wire rope
Power supply
Rigging
Platform
Hoist
All parts are present, in proper working order, and are not
damaged.
Bolts, nuts, and clamps are well secured.
Ensure the hoist is secured to the stirrup with SAE Grade 5
fasteners and lock nuts that are properly installed.
• In a dirty environment that contains epoxy, paint, cement, sand blast residue, or corrosive material, inspect the operation
of the overspeed brake several times a day. Protective hoist covers are recommended. Contact your supplier.
Test the Emergency Stop Button
• Conduct a test run with the hoist’s maximum working load (2,200 lbs or 1000 kg).
• Press the red emergency stop button
while running the hoist in either direction.
• Once the emergency stop button has been pressed, the hoist should not move at all.
• To reset the emergency stop button, turn the button clockwise until it pops out.
Test the Controlled Descent
• Raise the platform approximately 3 feet (1 meter) and then disconnect the power supply cable.
• Remove the brake release lever
from its storage cylinder, insert into the opening in the motor cover, and lift the
brake release lever. This will allow the platform to be lowered slowly.
WARNING!
If the overspeed brake trips while testing the controlled descent, the controlled descent system is not
working properly and THE HOIST SHOULD NOT BE USED.
Test the Overspeed Brake & Actuation Lever
• While powering the hoist
UP and
DOWN
approximately 3 feet (1 meter), look through
the round window into the overspeed safety
lock to see whether the fl ywheel is turning.
• De-reeve the wire rope.
• Re-insert the wire rope about 12" (30 cm) into
the hoist’s OSL wire rope inlet
.
• Holding the wire rope fi rmly, pull it out
quickly
. If the overspeed brake is working
correctly, it will grip and hold the wire rope in
less than 4" (10 cm).
• Repeat this test at least 3 times. If the
overspeed brake does not work correctly every
time, DO NOT USE THE HOIST. Return the
hoist to your supplier.
• Release the overspeed brake by turning the
overspeed brake RESET lever
17
clockwise in
the UNLOCK direction. The overpseed brake
ACTIVATION lever
12
should return to its
vertical, locked position.
• While raising or lowering the hoist, activate the
overspeed brake by turning the overspeed
Flywheel
Observation
Window
Turn overspeed brake
RESET lever
17
clockwise
Overspeed brake
ACTIVATION
lever
12
returns to
locked position
brake ACTIVATION lever
12
on the OSL in the counterclockwise or LOCK direction. The hoist should not travel in
the
DOWN direction.
• Release the overspeed brake by turning the
overspeed brake RESET lever
17
clockwise in the UNLOCK
direction. The overspeed brake ACTIVATION lever
12
should return to its vertical, locked position.
Test the Hand Wheel
NOTE: The purpose of the hand wheel
is to crank the platform upwards just enough to untrip the overspeed brake if it
has been tripped due to power loss or something else that has prevented upward movement.
• Activate the overspeed brake by turing the overspeed brake ACTIVATION lever
12
counterclockwise in the LOCK
direction.
• Remove the small cap in the motor cover and unscrew the screw that retains the hand wheel enough to remove the
hand wheel
. Insert the hand wheel into the motor in place of the small cap and tighten the screw.
• Remove the motor brake release lever
and insert into the opening in the motor cover. Hold the hand wheel still
while pushing the brake lever up, then turn the hand wheel clockwise. The hoist will move up a small amount with
each turn until the overspeed brake releases and can be reset with the overspeed brake RESET lever
17
.
