582156110-EN-indC-Pump-20F50 pH.docx 20/11/2020
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If earth continuity is not assured, check terminal, wire, bracket,
and grounding point.
Never operate the pump without having solved this problem.
Connection to compressed
air supply
Adjust the pressure at the air regulator.
For correct operation and a long duration life of the motor, the supply
air must be filtered and not lubricated (see § Maintenance).
It is imperative to install a pressure relief valve after the air
regulator and as close as possible to the motor inlet in order to
follow the decompression procedure (See § Operating
problems).
The motor air supply hose must have an inside diameter of at
least 16 mm / 5/8".
The motor is tested before shipping. Nevertheless, before
coupling the motor to the fluid section, it is necessary to
operate it under vacuum at a maximum pressure of 1 bar /
14.5 psi for a few minutes.
Proceed as follows:
Couple the motor with the fluid section,
Connect the main air supply to the motor.
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