Graco Inc 313797C, 290 Basic Troubleshooting / 基本故障排除 / 기본적인 문제 해결, Replacement

Basic Troubleshooting / 基本故障排除 / 기본적인 문제 해결

Basic Troubleshooting / 基本故障排除 / 기본적인 문제 해결

Check everything in this Basic Troubleshooting Table before you bring the sprayer to a Graco authorized service center.

Problem		What To Check	What To Do
		(If check is OK, go to next check)	(When check is not OK, refer to this column)
Sprayer Will Not Operate
Basic Fluid Pressure	1.	Pressure control knob setting.	Slowly increase pressure setting to see if motor starts.
		Motor will not run if set at min-
		imum (fully counter-clockwise).
	2.	Spray tip or fluid filter may be	Relieve Pressure, page 15. Then clear clog or clean
		clogged.	gun filter. Refer to gun instruction manual, 313347.
Basic Mechanical	1.	Pump frozen or hardened paint	Thaw sprayer if water or water-based paint has frozen
			in sprayer. Place sprayer in warm area to thaw. Do not
			start sprayer until thawed completely. If paint hardened
			(dried) in sprayer, replace pump packings. See page
			60.
	2.	Motor. Remove drive housing	Replace motor if fan won’t turn. See page 33, Motor
		assembly. See page 60. Try to	Replacement.
		rotate fan by hand.
Basic Air Pressure	1.	Power/function selector.	Ensure selection is ON.
	2.	Air ON/OFF valve at gun may be	Turn air adjustment valve counter-clockwise to open.
		closed	Slide air ON/OFF up to open.

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