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Changing the Engine Oil
Service Interval:
After the first 25 hours
Every 100 hours
WARNING
Oil may be hot after the engine has been run, and
contact with hot oil can cause severe personal injury.
Avoid contacting the hot engine oil when you drain
it.
1.
Shut off the engine and wait for all moving parts to
stop.
2.
Disconnect the wire from the spark plug; refer to
Disconnecting the Spark-Plug Wire (page 27)
.
3.
Place a drain pan under the oil-drain hole of the engine
(
).
1
2
3
G019750
Figure 42
1.
Oil-drain plug
3.
Oil-drain pan
2.
Oil-drain hole
4.
Remove the drain plug and catch the oil in the oil-drain
pan (
).
5.
When the oil has drained completely, install the drain
plug with a new washer (
Note:
Dispose of the used oil at a certified recycling
center.
6.
Remove the dipstick (
) and slowly pour oil
into the fill hole until the oil reaches the upper-limit
mark (bottom edge of the oil-fill hole) on the dipstick.
1
2
3
4
G019746
Figure 43
1.
Oil-fill hole
3.
Oil-level upper limit
2.
Dipstick
4.
Oil-level lower limit
7.
Replace and secure the dipstick.
8.
Wipe up any spilled oil.
Servicing the Spark Plug
Service Interval:
Every 100 hours/Every 6 months
(whichever comes first)—Check the
spark plug.
Every 300 hours/Yearly (whichever comes
first)—Replace the spark plug.
Type:
NGK BPR6ES or equivalent
Gap:
0.7 to 0.8 mm (0.028 to 0.031 inch)
Note:
Use a 21 mm (13/16 inch) spark-plug wrench for
removing and installing the spark plug.
Removing the Spark Plug
1.
Park the machine on a level surface and shut off the
engine.
2.
Ensure that the machine surfaces are cool.
3.
Pull the spark-plug wire off the terminal of the spark
plug (
31
Summary of Contents for 68021HD
Page 42: ...Notes 42 ...
Page 43: ...Notes 43 ...