C. DRIVE SYSTEM
The drive is an electromechanical system that is powered by a non-hazardous 12 volt,
deep cycle, spill-proof, sealed battery. As illustrated in Figure 23, the entire drive is
mounted to the Main Frame and moves with it.
Figure 23
1. Drive Motor. The dual direction 1.2 H.P. motor is mounted in the motor housing
at the bottom of the Main Frame. When the control switch is activated, the motor
turns the drive screw.
2. Overload Clutch. Mechanical power is transferred from the motor to the drive
screw via a ball détente type of clutch which protects the drive screw from over-
running in either direction. Over-running occurs when the operator continues
to apply power after the Lift Frame has reached its extreme up or down position
relative to the Main Frame. At such extremes, the clutch will slip and protect the
drive screw. As the clutch begins to slip, a loud warning sound (rachet) will be
heard.
Immediately
release the power switch.
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Summary of Contents for 1500
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