Graco EcoQuip 300 Operation, Repair, And Parts page 29

Pneumatic Pneumatic Blast Pneumatic Blast Control Blast Control Circuit Control
1. At the Air-Relay, disconnect the push-to-connect
tubing and check the trigger circuit (from the blast
control handle).
2. With the blast control activated, confirm that
there is air flowing from the disconnected tube.
NOTE: NOTE: NOTE: The air flow should be at supply air
pressure but the air volume is reduced due to
the size of the fittings and tubing. If you do not
get supply air pressure, check the blast control
handle for proper operation, and check the blast
control hoses to make sure they are not kinked
or internally blocked.
3. Check the in-line filter at the industrial interchange
nipple connection on the side of the panel (where
you attach the blast control hose).
4. If the previous steps do not fix the issue, replace
the air relay (Kit EQ5179).
334667G
Circuit Circuit
Pneumatic Blast Pneumatic Pneumatic Blast Control Blast Control — — — ATEX Control
Electric/Pneumatic Blast Electric/Pneumatic Electric/Pneumatic Blast Control Blast
Troubleshooting
ATEX Approved ATEX Approved Approved
Control Control
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