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VII. Maintenance
To avoid serious injury or death, an
adult should perform maintenance on
this engine. Only allow children to perform maintenance if
an adult has determined they are experienced and capable
of such operation.
To prevent accidental starting when
working on equipment, always:
• Carefully disconnect spark plug wire and keep it
away from spark plug. See “G. Avoid Accidental
Starts” instructions on page 2. Afterward, continue
reading instructions below.
• Keep the disconnected spark plug wire
securely away from metal parts where arcing
could occur.
• Carefully attach the spark plug wire to the
grounding post, if provided.
• Disconnect battery at negative terminal first, if
engine is equipped with a DC electric starter.
• Turn all engine switches to “OFF” position.
• Remove ignition key, if provided.
A. Checking and Changing Oil
To avoid engine damage, it is important to:
• Check oil level before each use and every
5 operating hours when engine is warm. See
"A. Checking Oil Level" instructions on page 4.
Afterward, continue reading instructions below.
• Change oil after first 2 operating hours and every 25
operating hours thereafter; more often if operated in
extremely dusty or dirty conditions. Engine should
still be warm but NOT hot from recent use.
1.
Be sure you find the correct drain plug location,
if provided. See Figure 20.
2.
Carefully disconnect spark plug wire and keep it away
from spark plug. See "G. Avoid Accidental Starts"
instructions on page 2. Afterward, continue reading
instructions below.
• Keep the disconnected spark plug wire securely
away from metal parts where arcing could occur.
• Carefully attach the spark plug wire to the
grounding post, if provided.
3.
Be sure the fuel fill cap is on and tightened securely.
4.
Clean area around oil drain plug. See Figure 20.
5.
Place approved recyclable oil container under oil drain
plug, if present.
6.
Remove oil drain plug, if present.
See Figure 20.
7.
Tip engine to position the oil flow, so it
will drain from the lowest point on the
engine (see equipment manufacturer’s
instructions).
8.
Drain oil into an approved recyclable oil container.
NOTE
Used oil must be disposed of at a proper collection center.
9.
Install oil drain plug and tighten securely.
10. Fill with recommended oil. See Table 1 on page 3 and
"III. Oil and Fuel Specifications" instructions on page 4.
See Figure 21. Afterward, continue reading instructions
below.
11. Wipe away any spilled oil.
12. Carefully disconnect spark plug wire from grounding
post, if provided.
13. Connect spark plug wire to spark plug before attempt-
ing to start engine.
WARNING
WARNING
Figure 20. Possible Oil Drain Plug Locations
Figure 21. Possible Oil Fill Locations
Summary of Contents for OHH50
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