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2-1-2 Electrical safety rules
1.
Before installing, please pay attention to the input rated voltage and current and
make sure the hoist is grounded, in order to prevent accident.
2.
There must be a main power switch at main input side of electric control system.
3.
Remember to disconnect the main power before repair, maintenance and clean.
4.
Unauthorized or untrained personnel cannot repair or maintain any electric
equipment.
5.
Comply with the maintenance instruction to repair and maintain the electric
equipment.
6.
Before operating the hoist, check all of the electric equipments and parts are broken
or damaged or not. If there is something broken or damaged, replace a new one
immediately and please note its original rated specification.
7.
After connecting power, check the direction of motor rotation and the direction of
hoist is correct or not.
8.
Please check whether the function of emergency stop button is normal or not. The
emergency stop button is used under emergency situation to cut off power of hoist.
(Operator usually misunderstand that the hoist is broken down when they forgot to
release the emergency stop button.)
9.
Please check whether the function of each safety parts is normal or not, such as
emergency stop button, emergency stop wire, interlocking switch, main power
switch, safety valve, limit switch, and etc.
10.
Please check whether the screws of each terminal base are tightened or not. If the
screws loose, screw them tightly.
11.
The wiring practices of electric control system must be complied with circuit
diagram.
Summary of Contents for DU903
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