Thermo King KD-II SR, Руководство пользователя

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Electrical Maintenance (Rev. 04/03)
62
Electric Motor Runs Hot or Loads the Diesel
Engine During Diesel Operation
Electric Motor Acting As An Induction
Alternator Check the voltage at the overload relay, T1 to T2, T2 to T3, and
T3 to T1.
Check the voltage between T3E and T3F.
The voltage on any of the above pairs of wires should not
exceed 15 volts ac while the unit is running on diesel operation.
If the voltage on any of the above pairs of wires is between 500
and 700 volts ac, the electric motor is acting as an induction
alternator. To repair the unit, check the following
1. Check the T2 and T3 circuits through the motor contactor to
make sure they are open during diesel operation. / Replace
or repair the motor contactor as necessary.
2. Check the connections between the electric motor leads and
the Thermo King wiring in the connection box on the electric
motor. Compare these connections to those indicated in the
wiring diagrams and schematics. / Repair the wiring
connections as necessary.
3. Disconnect the electric motor leads from the Thermo King
wiring at the connection box on the electric motor. Check the
wiring in the electric motor with an ohmmeter to make sure
the wires have continuity and are labeled correctly according
to the wiring diagrams and schematics. / Repair as
necessary.
PROBLEM/PROBABLE CAUSE TEST/SOLUTION