Technical manual August 2009
Rev: 01/08/09
Page:
9
Mechanical Systems
•
Because of a wiring problem. Check the wiring from tape switch assembly to the main
circuit board.
•
Because the Microswitch is malfunctioning. Replace the switch or re-align it.
3.
The hoist traverses poorly at specific points in the track system
Identify the points of blockage:
•
Is the blockage at the seam of two pieces of track? Correct the vertical and/or
horizontal alignment.
•
Is the blockage in a curved section? Check the curve for clearance. Replace an
improperly bent curve.
•
Is the blockage in a turntable? Check the vertical and/or horizontal alignment of
turntable and track. Brackets should be used to “force” permanent proper alignment.
•
Clean inside of track.
4.
The hoist does not power traverse well anywhere along the track
Open up the hoist and check the alignment of the traversing system. There should be little
noise in the gears and minimal sway in the motor bracket when the motor is running.
Ensuring that the motor is tightly fastened and the gears are mounted securely, aligned
with each other can eliminate “Laboured noise and excessive sway”.
5.
The hoist motor seems to be running, but does not work in UP or DOWN direction.
The motor output shaft or worm wheel of the motor may have worn. The acceleration
activated the overspeed governor, which is designed to prevent further use until the hoist
has been repaired. (The overspeed governor is a universal, failsafe mechanical brake,
which is triggered by centrifugal force and functions independently of the hoist’s pneumatic
electro-mechanical system.) Replace the motor.
