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Graco Top 20 Distributor

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Trouble Shooting

Equipment Trouble Shooting (Coatings)

This article features a selection of common coating equipment related problems along with the cause and solution. Make sure your equipment is operating correctly and you are getting the best quality coatings.

Problem - B-side Pump will not pickup material
SYMPTOM CAUSE SOLUTION
A-side RICH
(gauge high or normal)
Loose fittings in-bound If they are loose, they will pull in air tighten as needed
B-side LACKING
(gauge low)
Transfer Pump failure Verify that B Transfer Pump is properly operating
B-side Main Pump failure Verify that it is holding pressure on the up and down stroke
Problem - Restriction on B-side of system
SYMPTOM CAUSE SOLUTION
A-side RICH
(gauge low or normal)
Cross-over in B-side block Disassemble and clean spray gun as needed
B-side LACKING
(gauge high)
Kinked Hose or debris in the system from out-bound side of Heater to Gun Check hose and clean filters as needed
Problem - A-side Pump will not pickup material
SYMPTOM CAUSE SOLUTION
A-side LACKING
(gauge low)
Loose fittings in-bound If they are loose, they will pull in air tighten as needed
B-side RICH
(gauge high or normal)
Transfer Pump failure Verify that A Transfer Pump is properly operating
A-side Main Pump failure Verify that it is holding pressure on the up and down stroke
Problem - Restriction on A-side of system
SYMPTOM CAUSE SOLUTION
A-side LACKING
(gauge high or normal)
Cross-over in A-side block Disassemble and clean spray gun as needed
B-side RICH
(gauge low)
Kinked Hose or debris in the system from out-bound side of Heater to Gun Check hose and clean filters as needed