Generator Maintenance; Engine Maintenance - Briggs & Stratton FORTRESS Manual Del Usuario

Generator Maintenance

Check the cleanliness of the unit frequently and clean when
dust, dirt, oil, moisture, or other foreign material is visible on
its exterior or interior surfaces. The air inlets and outlets on
the enclosure must not become clogged with snow, leaves,
or any other foreign material. To prevent generator damage
caused by overheating, keep the air inlets and outlets clean
and unobstructed at all times.
NOTICE DO NOT use direct spray from a garden hose to
clean generator. Water can enter the engine and generator
and cause damage.
Cleaning the Generator
NOTICE Improper treatment of the generator could
damage it and shorten its life.
• DO NOT expose generator to excessive moisture, dust, dirt, or
corrosive vapors.
• DO NOT insert any objects through cooling slots.
1. Press and hold the control board OFF button.
2. Remove 15 Amp fuse from control board.
3. Clean generator as required:
• Use a damp cloth to wipe exterior surfaces clean.
• Use a soft, bristle brush to loosen caked on dirt, etc.
• Use a vacuum cleaner to pick up loose dirt and debris.
• Use low pressure air (not to exceed 25 psi) to blow
away dirt. Inspect cooling air slots and openings on
the generator. These openings must be kept clean and
unobstructed.
4. Install 15 Amp fuse in control panel.
5. Press and hold the control panel AUTO button.
Cleaning the Engine
Periodically clean the engine exterior of any dirt
accumulation and debris, such as leaves, rodent nests,
webs, insects, etc. Look for signs of visible damage to
exterior components and repair or replace as necessary.
NOTICE DO NOT use direct spray from a garden hose to
clean generator. Water can enter the engine and generator
and cause damage.
32

Engine Maintenance

Engine Oil
Select an engine oil viscosity that will best match the
prevailing seasonal temperature.
RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR THE BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST SAE
VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE
HOT WEATHER
SAE 15W-40
SAE 10W-30
PREFERRED
COLD WEATHER
The oil must meet GM specification 9986231. Motor oils
meeting this spec receive the API (American Petroleum
Institure) starburst symbol:
Note that GF-4 oils are "backward compatible" and are
equal or better than previous grades of oil in all aspects.
RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
The use of synthetic oils does not alter the specified oil
FOR THE BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
change intervals in the maintenance chart.
SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE
HOT WEATHER
Checking Engine Oil Level
Oil must be maintained between the "ADD" and the "FULL"
marks on the dipstick. To ensure an accurate reading on
the dipstick, make sure the following steps are taken before
checking the oil level.
1. Stop the engine.
2. Turn the generator OFF.
SAE 10W-30
3. Remove 15 Amp fuse from control panel. PREFERRED
COLD WEATHER
4. Allow approximately five minutes for the oil to drain
back into the oil pan.
5. Remove the dipstick. Wipe with a clean cloth or paper
towel and reinstall. Push the dipstick all the way into
the dipstick tube.
IF NEITHER SAE 10W-30 NOR SAE
15W-40 GRADE OILS ARE AVAILABLE,
SAE 30 GRADE MAY BE USED AT
TEMPERATURES ABOVE 4 DEGREES C
(40F), SAE 40 GRADE AY BE USED AT
TEMPERATURES ABOVE 27 DEGREES
C (80F).
DO NOT USE SAE 10W-40 GRADE
OIL OR ANY OTHER GRADE NOT
RECOMMENDED
40°F (4°C)
IF NEITHER SAE 10W-30
NOR SAE 15W-40 GRADE
OILS ARE AVAILABLE, SAE
30 GRADE MAY BE USED AT
TEMPERATURES ABOVE 4
DEGREES C (40F), SAE 40
GRADE AY BE USED AT
TEMPERATURES ABOVE 27
DEGREES C (80F).
DO NOT USE SAE 10W-40
GRADE OIL OR ANY OTHER
GRADE NOT RECOMMENDED
40°F (4°C)
SAE 15W-40
BRIGGSandSTRATTON.COM