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Overhauling Procedures - Mitsubishi Electric JT-SB216JSH-W-E Handbook

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13. Overhauling procedures

Work precautions
• Before replacing parts, follow the instructions described in the troubleshooting.
• When servicing, always take care to keep proper footing.
• Before starting the service, always unplug the power cord from the outlet, or turn off the earth leakage
breaker when no power cord plug is provided. Sufficient care must be taken to avoid electric shock or injury.
• Make sure to connect the power supply wires correctly.
• After completing repairs, check that the unit operates properly.
Always wear gloves when servicing.
( 1 ) Turn off the power supply.
1 Stop the operation.
2 Turn off the earth leakage breaker on the distribution board.
(2) Light receiving circuit board (JT-30S1)
1 Unscrew the clamping screws, and remove the maintenance cover.
(Two special screws 4 x 16, indicated by )
Assembly precaution
Insert the maintenance cover into the groove of the base. (Indicated
by )
2 Remove the sensor fix plate (upper).
Assembly precautions
• Run the lead wires through the groove of the maintenance cover.
(Indicated by )
• Take care not to pinch the lead wires.
3 Remove the light receiving circuit board (JT-30S1).
─ 19 ─
Maintenance cover
Sensor fix plate (upper)
Maintenance cover
Light receiving circuit board (JT-30S1)

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