Husqvarna 1055 GN Operator's Manual page 17

Changing Engine Oil
Change the oil after the first 5 hours of operation. Change
oil every 50 hours thereafter. If you are using your generator
under extremely dirty or dusty conditions, or in extremely
hot weather, change the oil more often.
CAUTION
Avoid prolonged or repeated skin contact with used
motor oil.
• Used motor oil has been shown to cause skin cancer in certain
laboratory animals.
• Thoroughly wash exposed areas with soap and water.
KEEP OUT OF REACH OF CHILDREN. DON'T
POLLUTE. CONSERVE RESOURCES. RETURN
USED OIL TO COLLECTION CENTERS.
Change the oil while the engine is still warm from running,
as follows:
1. Make sure unit is on a level surface.
2. Disconnect the spark plug wire from the spark plug and
place the wire where it cannot contact spark plug.
3. Clean area around oil drain plug (A). The oil drain plug
is located at base of engine, opposite carburetor.
A
4. Remove oil drain plug and drain oil completely into a
suitable container.
5. Reinstall oil drain plug and tighten securely. Remove oil
fill cap.
6. Slowly pour oil (about 28 oz.) into oil fill opening (B)
to the point of overflowing (C) at oil fill cap. DO NOT
overfill.
7. Reinstall oil fill cap. Finger tighten cap securely.
8. Wipe up any spilled oil.
Service Air Cleaner
Your engine will not run properly and may be damaged if
you run it with a dirty air cleaner.
Replace the air cleaner every 25 hours of operation or once
each year, whichever comes first. Replace more often if
operating under dirty or dusty conditions.
To service the air cleaner, follow these steps:
Service Spark Plug
Change the spark plug every 100 hours of operation or once
each year, whichever comes first. This will help your engine
to start easier and run better.
B
C
Service Spark Arrester
The engine exhaust muffler has a spark arrester screen.
Inspect and clean the screen every 100 hours of operation or
once each year, whichever comes first.
If you use your generator on any forest-covered, brush-
covered, or grass-covered unimproved land, it must have
a spark arrester. The spark arrester must be maintained in
good condition by the owner/operator.
If the engine has been running, the muffler will be very hot.
Allow the muffler to cool before servicing the spark arrester.
1. Loosen screws (D) and remove air cleaner cover (E).
G
F
E
D
2. Carefully remove cartridge (F) from base (G).
3. Install clean (or new) air cleaner assembly inside cover.
Dispose of old filter properly.
4. Assemble air cleaner cover onto base and tighten
screws.
1. Clean area around spark plug.
2. Remove and inspect spark plug.
3. Check electrode gap with wire feeler gauge and reset
spark plug gap to recommended gap if necessary (see
Specifications).
4. Replace spark plug if electrodes are pitted, burned
or porcelain is cracked. Use the recommended
replacement spark plug. See Specifications.
5. Install spark plug and tighten firmly.
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