Husqvarna HD800BBC Operator's Manual page 14

ENGINE
Maintenance, repair, or replacement of the emission control
devices and systems, which are being done at the custom-
ers expense, may be performed by any non-road engine
repair establishment or individual. Warranty repairs must
be performed by an authorized engine manufacturer's
service outlet.
LUBRICATION
Use only high quality detergent oil rated with API service
classifi cation SG–SL. Select the oil's SAE viscosity grade
according to your expected operating temperature.
NOTE: Multi-viscosity oils (5W30, 10W30 etc.) improve
starting in cold weather, and you should check your engine
oil level frequently to avoid possible engine damage from
running low on oil.
Change the oil after every 25 hours of operation or at least
once a year if the lawn mower is not used for 25 hours in
one year.
Check the crankcase oil level before starting the engine
and after each fi ve (5) hours of continuous use. Tighten oil
plug securely each time you check the oil level.
TO CHANGE ENGINE OIL (See Figs. 18 & 19)
NOTE: Before tipping lawn mower to drain oil, empty fuel
tank by running engine until fuel tank is empty.
1. Disconnect spark plug wire from spark plug and place
wire where it cannot come in contact with plug.
2. Remove oil fi ll cap/dipstick; lay aside on a clean surface.
3. Tip lawn mower on its side as shown and drain oil into
a suitable container. Rock lawn mower back and forth
to remove any oil trapped inside of engine.
MAINTENANCE
CONTAINER
FIG. 18
4. Wipe off any spilled oil from lawn mower or side of
engine.
5. Fill engine with oil. Slowly pour oil down the oil fi ll spout
into the engine.
6. Wait one minute to allow oil to settle. Use guage on oil
fi ll cap/dipstick for checking level. Insert dipstick into
the tube and rest the oil fi ll cap on the tube. DO NOT
thread the cap into the tube when taking reading.
OIL FILL CAP /
DIPSTICK
UPPER
MARK
LOWER
MARK
7. Continue adding small amounts of oil and rechecking
the dipstick until it reads full. DO NOT overfi ll, or engine
will smoke on startup.
8. Always be sure to retighten oil fi ll cap/dipstick before
starting engine.
9. Reconnect spark plug wire to spark plug.
AIR FILTER (See Fig. 20)
Your engine will not run properly and may be damaged by
using a dirty air fi lter. Replace the air fi lter every 100 hours of
operation or every season, whichever occurs fi rst. Service
air cleaner more often under dusty conditions.
TO CLEAN AIR FILTER
1. Remove cover.
2. Carefully remove cartridge.
3. Clean by gently tapping on a fl at surface. If very dirty,
replace cartridge.
CAUTION: Petroleum solvents, such as
ker o sene, are not to be used to clean
car tridge. They may cause de te ri o ra tion
of the cartridge. Do not oil car tridge.
Do not use pres sur ized air to clean or
dry car tridge.
4. Install cartridge, then replace cover.
14
FIG. 19