Honeywell HW4000 Owners Manual - Page 29

Air Filter Maintenance 4. Slowly pour gasoline into fuel tank. Be careful not to overfill. 2. Remove air cleaner cover. FIGURE 26: Fuel Level 5. Reinstall fuel tank cap and fully tighten. iNOTE: Occasional, light spark knock, "pinging", or rattling noise is normal while operating under heavy loads. If spark knock, pinging, or rattling occurs at a steady engine speed, under normal load, drain fuel (page 27) and refill with fresh gasoline. If noise persists, see an authorized generator dealer. FIGURE 27: Air Cleaner Cover 2A. Turn thumbscrew counterclock wise to loosen and remove. 2B. Push upward at bottom of cover to release plastic tabs. Running engine with persistent spark knock or pinging can cause engine damage. Warranty does not cover parts damaged by misuse. Air Filter Maintenance A dirty air filter will restrict air flow to carburetor, which may cause poor engine performance or damage. Never run the generator without air cleaner assembly properly attached. Clean air cleaner filter every 50 hours of generator operation. If operating generator in extremely dusty areas, clean air filter more frequently. FIGURE 28: Air Cleaner Cover-Release Tabs 3. Pull out foam air filter. Gasoline and flammable solvents can cause fire or explosion. NEVER use gasoline or flammable solvent to clean air cleaner element. • Use only household soap and water to clean air cleaner element. To clean air filter, you will need: ‰ Household soap and water ‰ Clean, dry cloth ‰ Clean engine oil 1. Stop engine if it is running. FIGURE 29: Air Filter Removal 4. Wash air filter in a solution of household soap and warm water. 5. Rinse air filter thoroughly. 6. Using a clean, absorbent cloth, squeeze air cleaner element dry, being careful not to twist or tear the filter. HW4000 Portable Generator Owner's Manual www.honeywellgenerators.com 23