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12 Section 6 — Maintenance
Air Filter Service
Paper filters cannot be cleaned and must be replaced once a year
or every 100 operating hours; more often if used in extremely
dusty conditions.
WARNING: Never use gasoline or low flash point
solvents for cleaning the air filter element. A fire or
explosion could result.
IMPORTANT: Never run the engine without the air filter. Rapid
engine wear will result.
1. Press down on the tabs securing the air filter cover. Pull
back and remove the cover. See Figure 6-2.
Paper Element
Tab
Figure 6-2
2. Remove the paper element. To loosen debris, gently tap
the filter on a hard surface. If the filter is excessively dirty or
damaged, replace with a new filter.
3. Insert the cover’s bottom tabs into slots in bottom of base.
4. Tilt the cover up into place and secure with tabs.
Oil Service
• Check oil level regularly.
• Be sure correct oil level is maintained. Check every five
hours or daily before starting engine. See oil checking
procedure in the Operation section.
Oil Change
IMPORTANT: Be sure to check engine on a level surface with the
engine stopped. Drain the oil while the engine is still warm to
assure rapid and complete draining.
1. Remove all fuel from tank by running engine until it stops
from lack of fuel.
2. Remove drain plug and allow oil to drain into a suitable
container. See Figure 6-1.
Oil Fill Cap
Drain
Plug
Figure 6-1
WARNING: Before tipping engine or equipment to
drain oil, drain fuel from tank by running engine
until fuel tank is empty.
3. Reinstall the drain plug and tighten it securely.
4. Refill with the recommended oil and check the oil level.
Refer to page 8 in the Set-Up section.
5. Reinstall the oil fill cap securely.
IMPORTANT: Used motor oil may cause skin cancer if repeatedly
left in contact with the skin for prolonged periods. Although this
is unlikely unless you handle used oil on a daily basis, it is still
advisable to thoroughly wash your hands with soap and water as
soon as possible after handling used oil.
NOTE: Please dispose of used motor oil in a manner that is
compatible with the environment. We suggest you take it in a
sealed container to your local service station for reclamation. Do
not throw it in the trash or pour it on the ground.
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