Pump Oil Change
Replace the pump oil once after 20 hours, and then regularly every 100 hours or 3 months.
To change the pump oil:
1.FOLLOW SHUTDOWN PROCEDURE AND ALLOW ENGINE TO COOL!
2.Loosen the oil cap (Figure 19).
3.Place a container under the oil drain plug (Figure 19).
Oil Cap
Oil Level Viewport
Drain Plug
Figure 19. The pump oil cap and drain plug.
4.Remove the oil drain plug.
5.After all the oil has drained, replace the oil drain plug and tighten securely.
6.Remove the oil cap and fill with SAE 30 oil. Add oil slowly and check the level frequently. The pump is full when oil is just past the red dot, covering the lower 2⁄3 of the viewing port (Figure 20). Do not overfill.
Figure 20. The correct pump oil level in the
viewport.
7.Replace the oil cap and tighten securely.
8.Dispose of the used oil in accordance with local regulations.
H8189/H8190 Gasoline Pressure Washer
