Benchmark BW4400 - Replace Temporary Pump Oil Dipstick; Check Pump Oil Level

8
BW SERIES
6. Replace either filter if it is damaged.
NOTE
 Running the engine without the air filter will quickly degrade the engine
 Always inspect air filter before using the pressure washer. Check and
clean the air filter according to the maintenance schedule.
3.2 REPLACE THE TEMPORARY PUMP OIL DIPSTICK
Your pressure washer ships with a red non-vented oil fill plug. Before starting the
pump replace the red non-vented dipstick with the included vented oil fill plug.
3.3 CHECK PUMP OIL LEVEL
1. Loosen the pump oil dipstick located on top of the pump.
2. To accurately read the oil level insert the dipstick into the hole without
threading it in. Ensure the reading is between the minimum and maximum fill
lines.
3. Replace pump oil dipstick and tighten.
Air Filter
Housing
Foam Air
Filter
Paper Air
Filter
Wing Nut