Adding Engine Oil; Changing Engine Oil - Westpro Westinghouse WH3250 Series Service Manual

MAINTENANCE
6. Check oil level:
When checking the engine oil, remove the oil fi ll
plug/dipstick and wipe it clean. Thread the oil fi ll
plug/dipstick all the way back in, and then remove
and check the oil level on the oil fi ll plug/dipstick.
Acceptable Oil Level – Oil is visible on the cross-
hatches between the H and L lines on the oil fi ll
plug/dipstick (see Figure 7-4).
Low Oil – Oil is below the L line on the oil fi ll plug/
dipstick.
Figure 7-4 – Checking Oil Level

Adding Engine Oil

1. Always operate or maintain the generator on a fl at
surface.
2. Stop engine if running.
3. Let engine sit and cool for several minutes (allow
crankcase pressure to equalize).
4. Thoroughly clean around the oil fi ll plug/dipstick.
5. Remove oil fi ll plug/dipstick and wipe clean.
6. Select the proper engine oil as specifi ed in Figure
7-2.
7. Using the supplied funnel and tube, slowly add
engine oil to the engine. Stop frequently to check
the level to avoid overfi lling (see Figure 7-5).
7-4
Figure 7-5 – Adding Engine Oil
8. Continue to add oil until the oil is at the correct
level. See Checking Engine Oil on page 7-3.

Changing Engine Oil

1. Stop the engine.
2. Let engine sit and cool for several minutes (allow
crankcase pressure to equalize).
3. Place oil pan (or suitable container) under the oil
drain plug.
4. With a damp rag, thoroughly clean around the oil
drain plug.
5. Remove the oil drain plug (see Figure 7-6). Once
removed, place the oil drain plug on a clean
surface.
Figure 7-6 – Oil Drain Plug
6. Remove the oil drain plug so the oil can drain more
easily from the oil drain port.
7. Allow oil to completely drain.
8. Replace oil drain plug.