Benchmark BW Series - Changing the Pump Oil

34
TM
 Use 4-stroke engine oil, certied to meet or exceed API standard SG,
SF, SAE ratings.
7.3 CHANGING THE PUMP OIL
The triplex pump comes pre-lled with pump oil. Rell with an SAE 15W-40 oil, or if
that is not readily available use pressure washer specic pump oil such as Annovi
AR64516.
NOTE
 Pump oil capacity:
 BW3500: 90 mL
 BW3800: 300 mL
 BW4400: 350 mL
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. Rell 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.
Min.
Oil Level
Max.
Oil Level
E F
Min.
Oil Level
Max.
Oil Level
E F