DOOVAC SML-140 Manuale d'uso - Pagina 8
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outlet pipes.
Foreign matter will damage the vacuum pump seriously. If the inlet gas or
environment is not clean, install an air filter at the inlet pipe.
CAUTIO N
The incoming pipe size should be one step larger than the inlet diameter.
Otherwise, especially if the incoming pipe is long, the performance of the vacuum
NO TE
pump may be degraded.
◈ Take care that there is no leak hole at the connection between the incoming pipe and the vacuum
pump inlet.
4. Discharge Pipe Connection
A silencer provided at the outlet side can greatly reduce noise.
(The silencer is an optional item.)
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V. C autions for C ommissioning and Operation
1. Pre cautions before O peration
Check the following before starting up the product
◈ Check that the power voltage and frequency are in accordance with the ratings on the motor's
nameplate.
◈ Check that the inlet and outlet pipes are properly connected.
◈ Check that the motor rotates in the designated direction (for 2-phase supply power).
Improper voltage and/or frequency may damage the motor critically.
WARNING
2. Cautions fo r Operation
Do not run the vacuum pump with the cooling fan cover open.
Do not insert your hands inside the cooling fan cover.
WARNING