Generac 5789 Benutzerhandbuch

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 10 
3.3 GENERAL 
RECOMMENDATIONS
The warranty of the generator does not cover items that have been 
subjected to operator abuse or negligence. To receive full value from 
the warranty, the operator must maintain the generator as instructed 
in this manual.
Some adjustments will need to be made periodically to properly 
maintain the generator.
All adjustments in the Maintenance section of this manual should 
be made at least once each season. Follow the requirements in the 
"Maintenance Schedule".
NOTE:
Once a year replace the spark plug and replace the air filter. A 
new spark plug and clean air filter assure proper fuel-air mixture 
and help the engine run better and last longer.
3.3.1 GENERATOR 
MAINTENANCE
Generator maintenance consists of keeping the unit clean and dry. 
Operate and store the unit in a clean dry environment where it will not 
be exposed to excessive dust, dirt, moisture or any corrosive vapors. 
Cooling air slots in the generator must not become clogged with snow, 
leaves, or any other foreign material.
Check the cleanliness of the generator frequently and clean when 
dust, dirt, oil, moisture or other foreign substances are visible on its 
exterior surface.
 Never insert any object or tool through the air 
cooling slots, even if the engine is not running.
NOTE:
DO NOT use a garden hose to clean generator. Water can enter 
the engine fuel system and cause problems. In addition, if water 
enters the generator through cooling air slots, some water will 
be retained in voids and crevices of the rotor and stator winding 
insulation. Water and dirt buildup on the generator internal 
windings will eventually decrease the insulation resistance of 
these windings.
3.3.2  TO CLEAN THE GENERATOR
•  Use a damp cloth to wipe exterior surfaces clean.
•  A soft, bristle brush may be used to loosen caked on dirt, oil, etc.
•  A vacuum cleaner may be used to pick up loose dirt and debris.
•  Low pressure air (not to exceed 25 psi) may be used to blow away 
dirt. Inspect cooling air slots and openings on the generator. These 
openings must be kept clean and unobstructed.
3.3.3 ENGINE 
MAINTENANCE
 
 When working on the generator, always 
disconnect spark plug wire from spark plug and 
keep wire away from spark plug.
3.3.4 CHECKING 
OIL 
LEVEL
See the “Before Starting the Generator” section for information on 
checking the oil level. The oil level should be checked before each 
use, or at least every eight hours of operation. Keep the oil level 
maintained (Figure 11).
Figure 11 - Oil Drain, Check & Fill
Oil Drain
Oil Check & Fill
3.3.5 CHANGING 
THE 
OIL
Change the oil after the first 20 hours of operation, then every season. 
If running this unit under dirty or dusty conditions, or in extremely hot 
weather, change the oil more often.
 
Hot oil may cause burns. Allow engine to 
cool before draining oil. Avoid prolonged 
or repeated skin exposure with used oil. 
Thoroughly wash exposed areas with soap.
Use the following instructions to change the oil after the engine 
cools down:
1.  Clean area around oil drain plug.
2.  Remove oil drain plug from engine and oil fill plug to drain oil 
completely into a suitable container.
3.  When oil has completely drained, install oil drain plug and tighten 
securely.
4.  Fill engine with recommended oil. (See “Before Starting the 
Generator” for oil recommendations).
5.  Wipe up any spilled oil.
6.  Dispose of used oil at a proper collection center.
Maintenance