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WARNING! BEFORE PERFORMING ANY MAINTENANCE WORK ALWAYS UNLOAD UNIT AND INSTALL MAINTENANCE SAFETY BAR(S)
Observation
1.)
Power unit does not run when hand
control is operated.
2.)
Motor hums, platform would not move.
3.)
Unit turns off before reaching the fully
raised or lowered height.
ELECTRICAL DIAGRAM WITH 24 VDC POWER OPTION
Troubleshooting Quick Reference Guide
for DC Powered Mechanical Post Table
(For further information contact the factory)
Possible Cause
a.
Battery voltage low.
b.
Bad wiring connection / broken
wire in circuit.
c.
Problem with motor / control.
a.
Chain / master link broken.
b.
Obstruction / jamed chain.
a.
Battery voltage low.
b.
Platform roller bearing obstructed
or is binding.
c.
The "platfrom raised" limit switch
engaging too soon, or is bad (where
applicable).
d.
Wire inside control cable broken.
e.
Platform overloaded.
Remedy
a.
Charge battery.
b.
Visually inspect wires, do continuity
checks with meter. Refer to electrical
diagram.
c.
Consult factory.
a.
Inspect and replace if necessary.
b.
Inspect chain, rollers, roller track and
pully assembly.
a.
Charge battery.
b.
Inspect roller track for interference
or damage.
c.
Adjust the limit switch pully spring's
tension: test switch with meter.
d.
Rotate control around while pressing
button(s). If the unit operates
intermittently, change the control.
e.
Check load; reduce if neccessary.
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