Cleaning The Venturi; Cleaning And Maintenance - Coleman 5100 LP Gas Series Assembly Manual

Cleaning the Venturi

Spider's nests or wasp's mud inside the venturi may cause fire
at valve. If a fire occurs, immediately turn off gas supply at L.P.
cylinder valve (see representative illustration in Fig. 22). If
your grill is set up for use with Natural Gas, turn off gas supply
at the system manual shut off valve.
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
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. Remove burner from grill bottom.
2. Look inside lower end of venturi tubes for nests, webs or mud.
3. 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. 23.
4. Inspect and clean the burner if needed.
5. Replace the burner assembly into the grill.
6. Make sure the valve orifices are inside the venturi tubes.
7. Secure burner back into grill bottom.
22
REPRESENTATIVE ILLUSTRATION
23
30
WARNING

Cleaning and Maintenance

All cleaning and maintenance should be done only when
grill is cool & with the fuel supply turned off at the cylinder.
If your grill is set up for use with Natural Gas, turn off gas
supply at the system manual shut off valve.
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 burner exterior.
Clean clogged gas port holes with an opened paper clip.
Replace corroded or damaged burners that would emit excess
gas.
• STAINLESS STEEL: Clean with any multipurpose (low abrasive,
no phosphorous) metal polish or stainless steel polish and a soft
cloth to prevent marring or scratching the surface. NEVER
USE OVEN CLEANER!
• ORIFICES: Unscrew orifices from rear of valves (Fig. 24). Wash
orifices in solvent and blow air through the small end holes.
Carefully replace the orifices in valve when they are dry. Make
certain that orifices are tightly reassembled.
CAUTION