Coleman 9949A manual Cleaning the Venturi, Suggested Cleaning Materials, Component Cleaning

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Component Cleaning:

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

rCOOKING GRATES: 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.

rGRILL 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. 36)

Fig. 36 REPRESENTATIVE ILLUSTRATION

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 valves. 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. 37.

Fig. 37

2.Remove the cooking grates set aside. (Fig. 38)

Fig. 38

3.Using a screwdriver, remove the screws holding the cooktop and set aside. (Fig. 39)

Fig. 39

4.Using a screwdriver, remove the self-tapping screws holding the burner clamps and remove the burners. (Fig. 40)

Fig. 40

5.Look inside lower end of venturi tubes for nests, webs or mud. If present, clean as noted in Step 1, Fig. 37.

6.Inspect and clean the burner if needed.

7.Replace the main burners and burner clamps, and position the burners in the operating position.

8.Make sure the orifice fittings are inside the venturi tubes, then tighten all self tapping screws. (Fig. 41)

9.Reinstall the cooktop and the cooking grates.

Burner

Venturi

Tube

Fig. 41

English-11