Fristam Pumps PM 01, Original Instructions Manual

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If the powder mixer shear pump is controlled by a frequency converter, heed the informa-
tion in the operator's manual from the frequency converter manufacturer.
7.1 Turning On Powder Mixer
1. Turn on the main switch: position "ON."
The "Fault" fault indicator will light up.
2. Turn on the shear pump switch: position "I."
The supply voltage for the frequency converter (if supplied) will be turned on by this.
The "Fault" fault indicator will go out.
7.2 Starting Powder Mixer
7.2.1 Preparation
Danger of Crushing, Severing of Extremities
Wedging of fingers in metering valve.
► Do not reach into the funnel.
► Install a grating for a pneumatic valve.
1. Clean the powder mixer when necessary.
2. Ensure that:
– There is adequate base medium in the supply system.
– There is no powder in the funnel.
– The funnel is dry.
3. Close drain valve V3.
4. Close metering valve V1 on the funnel.
5. Open the supply system outlet valve.
6. Completely open throttle valve V2.
Convey the medium from the supply tank to pump P1. Pump P1 requires a small amount
of liquid at first for priming. Supply this through the funnel as required.
7. Turn on centrifugal pump P1 and begin conveying the supply medium through the cir-
cuit.
8. Turn on shear pump P2.
7.2.2 Mixing
Respiratory Tract Irritation, Breathing Difficulties
Inhalation of dust or aerosol.
►
Do not bend over the funnel.
► Discharge dust- or aerosol-containing air.
1. Close control valve V2 to the extent where pump P2 is somewhat quieter.