Onan MDKBH Series, Service Manual

Page: 28 / 90

4-3
CHECKING ENGINE OIL LEVEL
WARNING
State and federal agencies have de-
termined that contact with used engine oil can
cause cancer or reproductive toxicity. Avoid
skin contact and breathing of vapors. Use rub-
ber gloves and wash exposed skin.
WARNING
Crankcase pressure can blow hot
engine oil out the fill opening causing severe
burns. Always stop the genset before removing
the oil fill plug.
1. Pull the plug and dipstick out of the oil fill neck
(Figure 4-1). The plug may be difficult to pull
straight out. It is easier if you tilt the plug in its
socket while pulling out. Wipe off the dipstick
and thread it back into the fill neck and seat the
plug, which snaps into its socket. Remove the
plug and dipstick again and check the oil level
on the dip stick.
2. Add or drain oil as necessary. See ENGINE OIL
RECOMMENDATIONS (Page 3-1). Keep the
oil level between the high and low beads on the
end of the dipstick, as shown. It is not neces-
sary to add oil between oil changes if the oil has
not dropped more than 1/3 of the way between
the high and low beads.
CAUTION
Too little oil can cause severe
engine damage. Too much oil can cause
high oil consumption.
3. Secure the oil fill plug, which snaps into its
socket.
OIL FILL NECK WITH
PLUG AND ATTACHED
DIPSTICK
KEEP OIL LEVEL
BETWEEN THESE TWO
BEADS ON DIPSTICK
FIGURE 4-1. OIL FILL NECK AND DIPSTICK
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