Grizzly H7671 instruction manual Troubleshooting, Symptom Possible Cause Solution

Troubleshooting

Symptom	Possible Cause		Solution
Fluttering or spitting	1. Dry or worn fluid tip seat per-		1.	Tighten fluid tip or replace
spray.		mits air to seep into fluid pas-		seat with new one.
		sage.
	2.	Material level too low.	2.	Add material.
	3.	Fluid tip or filter obstructed.	3.	Clean
	4.	Dry needle packing.	4.	Lubricate needle.
Uneven top or bot-	1. Atomizing cap holes are		1.	Clear holes.
tom pattern.		obstructed.
	2.	Build-up on top or bottom of	2.	Clean.
		fluid tip.
	3.	Build-up on atomizing cap is	3.	Clean.
		on needle seat.
Right or left arc	1. Left or right side horn holes		1.	Clear holes.
pattern.		are plugged.
	2.	Build-up on left or right side of	2.	Clean.
		fluid tip.
	3.	Build-up of material inside	3. Clean.
		atomizing cap.
Heavy deposit of	1. The material flow exceeds the		1.	Lower fluid flow.
material in center.		atomizing cap capacity.
	2.	Inlet air pressure is too low.	2.	Increase inlet air pressure.
	3.	Material is too thick.	3.	Thin material.
Narrow center pat-	1. Volume control turned in too		1.	Increase volume.
tern.		far.
	2.	Inlet air pressure too high.	2.	Reduce inlet air pressure.
	3.	Fluid pressure is too low.	3.	Increase fluid pressure.
	4.	Material is too thin.	4.	Adjust material.
No spray output.	1. No pressure at gun.		1.	Check air supply.
	2.	Fluid passages dirty.	2.	Clean gun, remove any
				obstructions.
	3.	Fluid control closed.	3.	Open.
	4.	Out of paint.	4.	Refill.
	5.	Material too thick.	5.	Thin to manufacturer's rec-
				ommendations.

-14- Model H7671/H7672 HVLP Spray Gun