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| 1. Particle caught on running section of the vacuum pump. |
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| If particles get caught, vacuum pump will be overloaded, causing the pump thermal to trip. |
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Before starting work, please turn the primary power and power breaker off. |
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- Check the vacuum pump to see if there are no noises or vibrations.
- If there is either noise or vibrations, there is a problem with the vacuum pump. Please replace the pump or check with your local Matsui service office.
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| 2. Vacuum air filter bowl was full in the drain. |
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| If air filter is clogged, vacuum pump will be overloaded and cause the pump thermal to trip. |
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- Check the inside of the bowl.
- Open the manual valve below the bowl and release the drain. Replace filter if clogged.
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| 3. Vacuum pump power cord is disconnected or connections are loose. |
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| If pump is running on a single phase due to a disconnection or a loose connection, the pump thermal will trip due to an overcurrent. |
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- Check the power cord and connecting sections. If loose, tighten the power connection sections. If disconnected, replace the power cord.
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| 4. The MS-2 switch of the control panel is not functioning normally. Thermal unit also not set at specified value. |
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| Pump Thermal will trip if the MS-2 is defective or if the thermal is set below the specified value. |
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- Check the condition of the MS-2 and the thermal set value.
- Set the thermal to the specified value. (1.85/1.6A (50/60 Hz)). If the MS-2 is defective, please replace.
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| 5. Pipes closed in the vacuum air route due to particles. |
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| If the vacuum air route is clogged due to gases and other causes, the pump thermal will trip due to the vacuum pump being overloaded. |
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- Check the pipes of the vacuum route. If there are particles, please remove. If unable to remove, replace the pipes.
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