7. Trouble Shooting & Maintenance
□ In case of loosening a screw bolt
Tighten a screw bolt by using 10mm lens tool once a week
□ In case that the sensor is not checked
* Loosen Solenoid and S.P small-shaped part.
Grind processed part of ㄱ-shape with grinding tool such as a hand grinder.
When grinded too much, the Solenoid will not work well. Recommended grinding depth
is approximately 1mm.
□ In case a hitting plate does not go up
* Solenoid works very well when a small amount of grease is applied on the processed
part of ㄱ-shape.
□ In case of PCB problem
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