Changing The Pump Oil - Benchmark BW4400 Mode D'emploi

6.3 CHANGING THE PUMP OIL

The pump comes pre-filled with 350mL SAE15W-40 oil from the factory. Refill with an
SAE 15W-40 oil, or if that is not readily available use pressure washer specific pump
oil such as Annovi AR64516.
1. Loosen the pump oil dipstick located on top of the pump.
2. Place a container under the oil drain plug.
3. Remove the oil drain plug.
4. Wait for oil to drain out, replace pump oil drain plug and tighten.
5. Refill pump with oil to the max line on the dipstick, a funnel is recommended.
To accurately read the oil level insert the dipstick into the hole without
threading it in.
6. Replace pump oil dipstick and tighten.
Note
Maximum oil capacity of the pump is 350mL.
29
Max.
Oil Level
Min.
Oil Level
Max.
Oil Level
Min.
Oil Level