Husqvarna HU775H / 961450007 用户手册

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 engine oil 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 (Figure 23).

4.  Wipe off any spilled oil from lawn mower or side of 

engine.

5.  Slowly pour oil down the oil fill spout, stopping every 

few ounces to check the oil level with the dipstick.

6.  Stop adding oil when you reach the FULL mark on the 

dipstick.  Wait a minute to allow oil to settle.

7.  Continue adding small amounts of oil, rechecking the 

dipstick until oil level settles at FULL.  DO NOT overfill, 

or engine will smoke heavily from the muffler on startup.

8.  Always be sure to retighten oil dipstick before starting 

engine.

9. Re 

con nect spark plug wire to spark plug.

Your engine will not run properly using a dirty air filter. 

Replace paper cartridge every 100 hours of operation or 

every season, which ev er occurs first.  Service air cleaner 

more often under dusty conditions.
NOTE: The air cleaner system uses a pleated filter with 

an optional pre-cleaner. The pre-cleaner can be washed 

and reused.
1.   Loosen the fastener that holds the cover. Remove the 

cover (Figure 24).

2.   Remove the pre-cleaner and the filter.
3.   To loosen debris, gently tap the filter on a hard surface. 

If the filter is excessively dirty, replace with a new filter.

4.   Wash the pre-cleaner in liquid detergent and water. 

Then allow it to thoroughly air dry. Do not oil the pre-

cleaner.

Figure 23

1. Oil fill cap/dipstick
2. Container

1. Fastener
2. Cover
3. Filter
4. Base
5. Pre-cleaner

Figure 24

5.   Assemble the dry pre-cleaner to the filter.
6.   Install the filter and pre-cleaner into the base. Make 

sure filter fits securely in the base.

7.   Install air filter cover and secure with fastener. Make 

sure the fastener is tight.