National Flooring Equipment 14420 Instruction Manual
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Contents
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MaintenanceFIG. 138. Stop the engine. Check the oil level.SPARK PLUGS1. Turn off the LP cylinder and remove it.2. Pull spark plug cap off of spark plug.3. Remove spark plug by turning counterclockwise; inspect it for damage or build-up.If the plug is oily or has carbon build-up on it, clean the plug using a high flash-pointsolvent and wire brush (or other suitable tool). If the spark plug electrodes are cor-roded or damaged, or if the insulator is cracked, replace the plug. Use the sametype of spark plug; do not use any other spark plug.4. Measure the gap with a wire-type thickness gauge. The correct gap is .025 in (.635mm). If the gap is incorrect, carefully bend the side electrode with a suitable tool toobtain the correct gap.Figure 13: (A) Insulator, (B) Center Electrode, (C) Plug Gap, (D) Side Electrode.AIR FILTERS1. Push machine to level surface.2. Turn off LP cylinder and remove it.3. Turn the two knobs 1/4 turn counterclockwise and remove the filter cover (Figure14).4. Loosen clamp that retains filter and remove the air filter.5. Inspect both primary and secondary filters. If necessary, clean primary filter bylightly tapping the seal ends, then wiping down the ends with a clean cloth. If pri-mary filter cannot be cleaned or is bent or damaged, it must be replaced. If second-ary filter is dirty, do not attempt to clean it. Replace with a new filter.6. Check the intake hose for cracks or damage.7. Install filters and replace cover.FUEL HOSE AND CONNECTIONS1. Push machine to level surface.2. Turn off LP cylinder and remove it.3. Inspect hoses for abrasions and other signs of wear. Replace all worn or damagedhoses.4. Check for gas leaks by spreading a soapy water solution around all connectionswhile the LP cylinder is reconnected and the service valve is turned on (Figure 15).5. If a leak is detected, turn off the LP cylinder. If the leak is in a hose, replace it. if theleak is at a fitting, loosen and clean it; apply pipe-sealing compound and re-tightenit.6. Re-check for leaks using soapy water solution. If leaks persist at fittings, replacethem and re-check with a soapy water solution once more.16WARNING: DO NOT WASH OR OIL THE AIR FILTERS OR USE PRESSURIZED AIRTO CLEAN THE AIR FILTERS.FIG. 14FIG. 15 |
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