Accessories, － 7 －, Normal Spray Pattern | Emerson DA-100 specification

Normal Spray Pattern

The proper combination of fluid pressure, fan and atomization air pressure, and fluid tip size should result in a pattern of this shape.

	PROBLEM		CAUSE		CORRECTION
Will not spray.		No pressure to gun.		Check air and material lines.
		Piston stops moving.		Check CYL air pressure.
Improper spray		A.	Gun not adjusted properly.	A.	Re-adjust. See “Operation
pattern.		A, B Material build up on the air			Section”.
			cap (2)or fluid tip (3).	A, B Clean the air cap or fluid tip.
			cap (2)or fluid tip (3).	A, B Clean the air cap or fluid tip.
					See “Preventive Maintenance”.
			Note
		To determine where the material build up is, rotate the air cap 180°and test

		spray. If the pattern stays in the same position, the condition is caused by
		material build up on the fluid tip. If the pattern changes with air cap movement,
		the build up is in the air cap.
		C, D. Wrong material or material		C, D Adjust material pressure or thin
			too thick.		material.
			Insufficient material or		Increase material or reduce
			atomizing air pressure too		atomizing air pressure.
			high.
Jerky or fluttering		1.	Insufficient material in the tank	1.	Fill tank or clear obstruction.
spray.			or an obstruction in the line.
		2.	Gun material passage plugged.	2.	Clean.
		3.	Worn Needle Seal Kit (7).	3.	Replace.
		4.	Loose or damaged fluid tip.	4.	Tighten or replace.

Air leaking from		1.	Damaged or worn Piston Cup	1.	Replace.
Adjusting Screw (20).			(14).
		2.	Damaged cylinder of Gun Body	2.	Replace.
			(6).
Dripping from Fluid		1.	Worn or damaged Fluid Tip (2)	1.	Replace.
Tip.			or Needle (12).
		2.	Needle Spring (18) damaged or	2.	Replace.
		3.	deformed.
Air or fluid leaking		Damaged or worn Needle Seal Kit		Replace.
from Gun Body (6).		(7)