Important Information Concerning Commissioning And Operation - Graco REGULUS 003.175-DP User Information

- Open pressure control valve.
AERATING (BLEEDING) OF APPLIANCE/PLANT
Any air remaining in the diaphragm pump or the system must be removed completely.
Ensure that the material supply (suction pipe) is immersed in the material. Open the pressure control
valve until the diaphragm pump slowly starts.
- Operate the diaphragm pump with < 2 bar material pressure
until no more air is pumped.
PREPARING FOR SPRAYING
Raise the material excess pressure slowly to the maximum value.
Operate the diaphragm pump at this pressure for a short time. Then set the required operating
pressure.
- Diaphragm pump / plant is ready for operation.
LOW LOCAL TEMPERATURE
If commissioning or operation is carried out at a local temperature around 10 °C the compressed air
should be supplied with anti-freezer from a dosing apparatus (compressed air oiler).
We recommend ethylene glycol, diluted, with high-pressure additives, 1000 ml , article no. 75682
114002).
IMPORTANT INFORMATION CONCERNING COMMISSIONING AND
OPERATION
The diaphragm pump should only be dry operated for short periods of time under
supervision and with low air inlet pressure.
Dry operation after the material has passed through must be strictly avoided. It will damage
or destroy important component parts.
Continuous operation with high stroke frequency leads to extensive icing of control system
(increased pulsation until diaphragm pump shutdown) (see technical product description B.
6.50.80-P-GB, page 03) and leads to a decrease in service life.
Do not remove and replace the suction pipe or hose during operation.
- If air gets into the system this may e.g. lead to poor painting.
14 B.6.50.80-B-GB