< TROUBLE > |
| < CHECK > |
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| < REMEDY > |
Does not speed- |
| <CHECK FET.> |
| NO | Repair the contact |
control. | → Even if FET block is defective, it can not be replaced individually. |
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| or replace switch | |
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| Replace whole switch block. |
| → | & FET block. |
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| Remove the FET circuit block and check the lead wire terminals. | Ω ) |
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| These terminals are open normally when there is an open circuit ( |
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| between the green and yellow lead wires, and between the blue and |
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| yellow lead wires. |
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NOTE:
*FET is weak against static electricity.
**The resistance value may be some differences depends on the measurement range.
Does not vibrate |
| <CHECK ANVIL.> | NO | Replace anvil. |
or weakness of | → | Check wear condition of anvil. If no less than 1mm from | → |
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vibration. |
| the corner at (A) side or 0.5mm from the corner at (B) side, |
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| anvil is OK. |
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6