Kohler Engine, Paint Pumps | Graco 3A1696C guide

Troubleshooting

Kohler Engine

PROBLEM	CAUSE		SOLUTION

Engine not starting	Programmable Skipline Controller is	1.	Turn on Programmable Skipline Control-
	shut off, or engine is out of fuel		ler. Engine will not start with control off.
		2.	Check fuel supply.
		3.	See Kohler engine instruction manual.

Engine stalling	Engine fuel tank is empty or not breath-	1.	Check fuel supply. Open breather on
	ing, or engine oil is low.		fuel tank. Check engine oil level.
		2.	See Kohler engine instruction manual.

PROBLEM	SOLUTION

Pumps wearing prematurely	Reduce premature pump wear and costly down-time with the following tips:
	• Keep piston throat full of TSL
	• If possible, shorten lines to reduce pump back pressure
	• Use Graco strainer at pump inlet to filter-out dried paint and debris
	• Inspect internal suction hoses for paint build-up, which can cause pump starving
	• Replace pump packings seasonally to increase piston and sleeve life
	• Always keep hydraulic reservoir full to reduce heat build-up

PROBLEM	SOLUTION

Do not know what type of paint to use	When ordering paint from manufacturer:
	• Inform paint suppliers of type of equipment to be used (RoadLazer), filter screen
	sizes (30 mesh) and tip sizes (33 to 45 thousands)
	• Require that paint must pass through a 30-mesh filter with minimal filter plugging
	Things to know about waterborne paint and striping equipment:
	• Flush waterborne paints from system if system is not used on a regular basis.
	Waterborne paints do not dilute easily. Use warm soapy water to flush system.
	• Waterborne paints will not redissolve. Dried paint film in paint containers or paint
	suction lines must be removed. Graco offers a Suction Line Strainer Kit 24G774
	that should be installed at least 2 ft from pump inlet to remove contamination.
	Strainers must be cleaned regularly to avoid pump starving or cavitation.
	• Waterborne paints cannot freeze or tolerate temperatures above 120° F (49° C).
	Consult paint manufacturer.
	• With age, waterborne paint pigments settle to bottom of container. Never use set-
	tled paint without agitating. It is important to order fresh paint. Require paint manu-
	facturers to supply manufactured dates and stagger shipments throughout striping
	season.

3A1696C