Wen PW28

18
MAINTENANCE & CARE
CHECKING DETERGENT SIPHONING TUBE
1. Check the detergent siphoning tube for clogs, leaks, or tears.
2. Make sure the tube fits tightly to the pump fitting.
3. Replace siphoning tubes if damaged.
HIGH PRESSURE HOSE
1. Inspect hose for cuts, bulges, or leaks which can develop from kinking or wear. If damage is found, immedi-
ately replace hose.
2. Inspect couplings for damage. Immediately replace hose if damage is found.
WARNING: Never repair a high pressure hose or use unit if the hose is damaged. If the hose is damaged replace
with identical part.
SPRAY GUN
1. Make sure the spray gun is connected securely.
2. Inspect the spray gun safety and make sure the spray gun trigger springs back upon release.
Nozzle Cleaner
HIGH ALTITUDE OPERATION
Specific modifications are needed for high-altitude operations. Please contact our customer service line or go to
wenproducts.com and search for our high altitude pressure washer kit for important information regarding these
modifications. Operating this unit at an altitude over 3000 feet without the proper modifications may increase the
engine’s emissions and decrease fuel economy and performance.
SPARK PLUG MAINTENANCE
The spark plug is important for proper engine operation. A good spark plug should be intact, free of deposits,
and properly gapped. Refer to Recommended Maintenance Schedule in Fig. 17. To inspect the spark plug:
1. Remove spark plug boot. Be careful not to tear insulation or wiring.
2. Unscrew the spark plug from the engine using the spark plug wrench provided. There is limited space for the
wrench to turn. Use both rows of holes in the spark plug wrench to gain leverage to loosen the plug.
3. Visually inspect the spark plug for cracks or excessive electrode wear. Replace with Torch F7RTC spark plug.
4. Measure the plug gap with a wire gauge. The gap should be 0.7-0.8 mm (0.028-0.031 in).
5. If re-using the spark plug, use a wire brush to clean any dirt from around the spark plug base then re-gap the
spark plug.
6. Screw the spark plug back into the spark plug hole using the spark plug wrench. Do not over-tighten spark
plug. Recommended tightening of spark plug is ½ to ¾ of a turn after the spark plug gasket contacts the spark
plug hole. Reinstall the spark plug boot.