LG LMH1017CVW Service Manual page 18

L. INTERLOCK SYSTEM
1) INTERLOCK MECHANISM
The door lock mechanism is a device which has
been specially designed to eliminate completely
microwave activity when the door is opened during
cooking and thus to prevent the danger resulting
from the microwave leakage.
ADJUSTMENT
DIRECTION
SECONDARY
SWITCH
MONITOR
SWITCH
PRIMARY
SWITCH
2) MOUNTING OF THE PRIMARY/MONITOR/
SECONDARY SWITCHES TO THE LATCH
BOARD
3) INSTALLATION AND ADJUSTMENT OF THE
LATCH BOARD TO THE OVEN ASSEMBLY
• Mount the latch board to the oven assembly.
• Adjust the latch board in the arrow direction so that
oven door will not have any play in it when the door
is closed.
• Tighten the mounting screw.
• Check for play in the door by pulling and
pushing the door handle. Door movement
should be less than 0.5 mm. (1/64 inch)
Don't pull the door handle while making this
adjustment. Make sure that the latch moves
smoothly after adjustment is completed and that
the screws are tight. Make sure the primary,
monitor, and secondary switches operate properly
by following the continuity test procedure.
M. C-MOTOR, THERMISTOR AND
SHEATH HEATER REMOVAL
1) Remove back cover after untieing four screws
securing the cover assembly to the oven cavity.
2) Disconnect the leadwire from the circulation motor
and the sheath heater terminal.
3) Remove four hex nuts holding chamber ass'y to the
oven cavity.
4) Remove the screws of the thermistor, and lift up
chamber ass'y.
5) Remove a hex nut securing the circulation fan to
shaft of the C-motor.
6) Remove screws securing sheath heater to
chamber wall.
7) Remove sheath heater from chamber ass'y.
Thermistor
Sheath Heater
N. SENSOR REMOVAL
1) Disconnect the sensor connector from P.C.B. Sub
Ass'y.
2) Remove the screw securing sensor to Air tunnel.
Sensor
5-7
Convection
Motor