Coleman 9959 manual Cleaning the Venturi, Suggested Cleaning Materials, Component Cleaning

Suggested Cleaning Materials:

•Mild dishwashing liquid detergent • Hot water

•Wire brush • Paper clip • Nylon cleaning pad

•Soft brass-bristled brush • Putty knife • Scraper

Component Cleaning:

•BURNER: Wire-brush loose corrosion from the burner exterior. Clean clogged gas port holes with an opened paper clip. Replace corroded or damaged burner that would emit excess gas.

•COOKING GRATE: Clean cooking grates with mild soap and hot water. Remove stubborn residue with a mild cleanser or scrub brush. DO NOT use a commercial oven cleaner.

•GRILL INTERIOR: Remove grates. Scrape side with tools and remove excess grease and cooking residue.

Cleaning the Venturi

WARNING

Spider’s nests or wasp’s mud inside the venturi may cause fire at the valve. If a fire occurs, immediately turn off the gas supply at the control valve (see representative illustration in Fig. 37).

REPRESENTATIVE ILLUSTRATION	Fig. 37
Note:

Spiders and small insects can spin webs and build nests inside the venturi tubes. This especially occurs in late summer and fall before frost when spiders are most active. These nests can obstruct gas flow and cause a fire in and around the burner knob. Such a fire can cause operator injury and serious damage to the grill. To help prevent a blockage and ensure full heat output, clean and inspect the venturi tubes often (once or twice a month). NOTE: Water or air pressure will not normally clear a spider web.

Steps For Cleaning Venturi:

1.To remove the above obstructions, use an accessory flexible venturi brush or bend a small hook on one end of a 20-inch long flexible wire such as the one shown in Fig. 38.

Fig. 38

2.Remove the cooking grates set aside. (Fig. 39)

Fig. 39

3.Using a screwdriver, remove the self-tapping screws holding the burner clamps beneath the case and remove the burner. (Fig. 40)

Fig. 40

4.Look inside lower end of venturi tube for nests, webs or mud. If present, clean as noted in Step 1, Fig. 38.

5.Inspect and clean the burner if needed.

6.Replace the burner and burner clamps, and position the burner in the operating position.

7.Make sure the orifice fittings are inside the venturi tube, then tighten all self tapping screws. (Fig. 41 and Fig. 42)

Orifice Fitting

Burner	Venturi
	Tube

Fig. 41

Orifice Fitting in Venturi Tube
REPRESENTATIVE ILLUSTRATION	Fig. 42

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