Internal Wiring; Transformer - KITO ER2 Serie Manuel Du Propriétaire

Chapter 3 Troubleshooting
Troubleshooting (continued)

Internal wiring

Symptom
Electric chain hoist
does not operate.
3

Transformer

Symptom
Electric chain hoist
does not operate.
(Electromagnetic
Contactor does not
operate.)
104
Cause
Breakage of wire Check the wire. Repair the wire if broken. Vibration, impact
Check the terminal. Repair the terminal
without conduction.
Wrong wiring Check the wiring in accordance with the
wiring diagram. Correct the wiring if it is
wrong.
Loosened terminal Tighten the loosened screws.
screw (results in
heat generation to
burn)
Incomplete Connect plug, connector and insertion
connection of plug, terminal correctly if they are not
connector and connected securely.
insertion terminal Tighten the lock ring of the connector
plug securely.
Cause
Burnout or Measure the resistance of transformer
breakage of coil. If it is infinity, replace the
transformer coil transformer.
Breakage of lead Check the lead wires of the transformer.
wire Repair or replace the transformer if the
lead wire has no conduction.
Remedy
Lead wire damaged at
assembling
Improper crimping
Wrong wiring at
assembling
Insufficient tightening
at assembling
Vibration, impact
Incomplete connection
at assembling
Remedy
Over voltage
Excessive inching or
plugging operation
(consecutive
impression of start
rush current)
Over current due to
defective operation
of Electromagnetic
contactor
Vibration, impact
Vibration, impact
Main factor Countermeasure
Use the electric chain hoist
avoiding the impact.
Be careful not to have the
lead wire caught when
assembling.
Use the proper crimping
tool.
Correct the wiring in
accordance with the wiring
diagram.
Tighten screws securely.
Use the electric chain hoist
avoiding the impact.
Connect plug, connector
and insertion terminal
securely.
Main factor Countermeasure
Operate the electric chain
hoist with the rated voltage.
Do not perform excessive
operation.
Refer to the items of
Electromagnetic Contactor.
Use the electric chain hoist
avoiding the impact.
Use the electric chain hoist
avoiding the impact.