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Prowinch PWA - Recommended Operation

Prowinch PWA
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Version 1.0 Version 1.0
Operation
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Start with Operational Test
1. Turn on the remote control and press and hold the start key until you see a green light ashing on the receiver.
2. Press (down) button to lower the unloaded hook until the limit spring touches the limit switch. Be sure the hoist stops
automatically before totally compressing the spring.
3. Press (up) button to raise the unloaded hook up until the limit spring touches the limit switch. Be sure the hoist stops
automatically before totally compressing the spring.
4. Test correct function of emergency stop button. When pressing (up), and (down) buttons press the emergency stop
button. Ensure the hoist stops immediately after pressing the emergency stop switch. The hoist should not start again if any
other button is pressed.
5. Rotate the emergency stop switch clockwise to its original position. When it bounces back, the hoist can be started
again. If any of the above tests fail, the unit must remain out of service, lockout/tag-out power and request authorized
personnel to check the circuit layout for the automatic locking emergency stop switch.
6. Check lubricant condition of the load chain. Apply lubricant into the chain bag to protect the load chain.
Normal Operation
1. Check the direction of chain eyes. All welding points should face the same direction. The hoist cannot be operated
properly unless all welding chain eyes are in the same line.
2. Position the hoist vertical to the load. Before moving the trolley, make sure the hooks path is free from any obstacles.
3. Lower the hook near master link to hoist load and make nal adjustments to secure a 90º vertical lift operation without
any lateral deviation. Improper lift angle may cause the load to swing.
4. Attach the hook to the load link and make sure there are no people in the working area. Check that no loose items can
fall from the load.
5. Begin by hoisting the load two inches, then stop. Ensure the brakes are fully operational and the load doesn’t lower
while stopped. Also ensure the load is balanced and secured. The load may have shifted when suspended.
6. To reach a desired position, movements must be smooth and continuous. Repeatedly pressing buttons may heat up
the motor and damage equipment.
7. Avoid sudden directional changes. These movements may damage the equipment, prematurely wear down brakes
and cause accidents.
8. Avoid any obstacles while hoisting or traveling the load.
9. Start movement of the trolley and ensure that the load is not swinging and there are no obstacles in its path. Stop
movement and make necessary adjustments if one of these conditions is present.
1.3 Recommended Operation
Always carry out a complete inspection before starting the operation of the hoist.
See ASME B30.
Always let know to all personnel that crane maneuvers are about to begin!
Do not allow Unauthorized Personnel to be in the elevation area.
If hoist model has double dual/speed capabilities, always start with slower speed
to avoid sudden accelerations. Decelerate before completing a stop.

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