Air Supply
Requirements
•Compressed air supply pressure:
•Air hoses: use grounded hoses that are correctly sized for your system.
Trapped air can cause a pump or dispense valve to cycle unexpectedly, which could result in serious injury from splashing or moving parts. Use
•Air regulator and
•Air line filter: a 10 micron or better air filter is rec- ommended to filter oil and water out of the air supply and help avoid paint contamination and clogged solenoids. See FIG. 5.
Air Connections
See the System Pneumatic Schematic on page 29.
1.Tighten all ProControl system air and fluid line con- nections as they may have loosened during ship- ment.
2.Install a
NOTICE
Use separate air supply lines for the following two connections to avoid contaminating the purge air line with fluid if the air purge valve and a check valve failed.
3.Connect a clean air supply line to the shutoff valve. This air line supplies air to operate the gun, sole- noids, and dispense valves.
NOTE: See Technical Data on page 35 for additional air supply/consumption information.
Air Supply
4.lnstall a
5.See FIG. 6. Use the air purge valve tubing (AT, sup- plied) to connect the air purge valve (APV) inlet to a clean, dry air supply (install filters/dryers as needed).
NOTICE
The ProControl potlife timer will not function properly when used with multiple guns operating simultane- ously. To avoid having mixed material set in the equip- ment, carefully monitor potlife by some other means.
If using a Graco electrostatic PRO™ Gun, a shutoff valve must be installed in the gun air line to shutoff the atomizing and turbine air to the gun. Contact your Graco distributor for information on air shutoff valves for electrostatic applications.
1 Install a | Main Air Inlet |
shutoff valve here. |
1 For Air
Purge Valve
For Fluid
For Air | 1 | Station |
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| Controls | |
Flow Switch |
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Air Filters |
| TI11895a |
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FIG. 5. Air Supply Control |
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3A1163A | 17 |
