6
4.3 Filling delivery piping with material
1
）
Open the bleeder valve by turning it 2-3 times for releasing air.
2
）
Open the air valve for the pump and increase air pressure gradually with the pump air regulator. The pump will
start operating at approx. 0.05MPa. Adjust the pump air regulator to set pump speed to 5-8 seconds per cycle.
3
）
Air-containing material will be discharged from the bleeder valve. Put a plastic bag over the valve to receive
discharged material. Keep the pump operating until the air inside material is released completely. Then close the
bleeder valve by securely tightening it.
4
）
Close the air valve for the pump and set the pump air regulator to 0MPa.
4.4 Operation
1
）
When filling the delivery piping with material for the first time, the air inside the piping will blow out. Please follow
the following procedure.
①
Put a plastic bag over the material outlet to receive discharged material.
②
Open the valve on the delivery piping.
③
Open the air valve for the pump and set the pump air regulator for minimum operating pressure.
④
The pump will start discharging material from the outlet. Once the air in the piping is released completely,
close the air valve for the pump and set the pump air regulator to 0MPa.
⑤
The pump is now ready for operation.
2
）
Adjust the pump air regulator to set to the desirable operating pressure. An estimate of the material discharge
pressure to the supply air pressure is calculated by “supply air pressure × pump ratio”.
(e.g. When operating a 38:1 ratio pump at 0.7MPa supply air pressure, material will be discharged at approx.
26.6MPa.)
<NOTE>
Material viscosity varies with changes in temperature. It is recommended to make a note of appropriate pressure
for each season.
4.5 After work
CAUTION
-
After work or when shutting down the unit for a long period, be sure to turn off the air supply source
to disconnect air supply to the pump, and open the valves on the material outlet or gun to release
residual pressure inside the pump and piping. Failure to shut off air may cause damage to the hoses
and pipes and/or leak in the valves and gun. Any secondary accidents caused by the failure
mentioned above are the responsibility of the users.
1
）
Close the air valve for the pump and set the pump air regulator to 0MPa.
2
）
Open the valve on the discharge port to release residual pressure on air and material inside the pump and
piping.
