Read LG T8505DE Service Manual online
3-3. Electronic Brake Systems
Electronic Brake System is braked by reverse current of motor.
Capacitance
<Host PC board> control chips
* 3-4. Structure and working principle of drain valve
■
Start draining:
starting with turning motor rotor and pulling the drain valve to
(as seen below)
Stop draining: End with turning rotor to initial point to close the valve and stop draining.
Drain motor
Drain valve rod
Rotor
Drain valve inlet
Bellows
<Structure of drain motor>
<circuit of drain motor>
* For non pump model
■ Features
●
Drain motor rotor can only be rotated counterclockwise when power is on.
●
For easy maintenance, Drain motor rotor can only be rotated counterclockwise when power is
on.
●
●
The function of inside button in motor is to sensor the initial position。 The “POWER OFF”is
at the position of stopping draining.
●
●
Rotor shall finally return to original position and stop draining when pressing “START/PAUSE”
or “POWER” button. But it does not work while unplugging the power or power failure and
restart when power is on.
restart when power is on.
●
During maintenance， turn counterclockwise
to implement forced drainage.
8
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