Maintenance; Maintenance Schedule; General Recommendations - Generac Power Systems XG 6500 Watt Series Owner's Manual

3.1 MAINTENANCE SCHEDULE

Follow the calendar intervals. More frequent service is required
when operating in adverse conditions noted below.
Check Oil Level
Change Oil and Oil Filter‡
Clean Spark Arrestor Screen
Service Air Filter
Replace Spark Plug
‡ Change oil after first 30 hours of operation then every season.
* Change oil and oil filter every month when operating under heavy load or in
high temperatures.
** Clean more often under dirty or dusty operating conditions. Replace air filter
parts if very dirty.

3.2 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".
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.
3.2.1 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.
At Each Use
*Every Season/Every 100 Hours
**Every Season/Every 100 Hours
**Every Season/Every 200 Hours
Every Season
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.
3.2.2 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.
3.2.3 ENGINE MAINTENANCE
When working on the generator, always disconnect

negative cable from battery. Also disconnect spark plug
wire from spark plug and keep wire away from spark
plug.
3.2.4 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.
3.2.5 CHANGING THE OIL AND OIL FILTER
Change the oil and filter after the first 30 hours of operation.
Change the oil every 100 hours or every season thereafter. 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:
• Clean area around oil drain cap.
• Remove oil drain cap from the drain hose and oil fill plug to drain
oil completely into a suitable container.
• When oil has completely drained, install oil drain cap and tighten
securely.
• Place a suitable container beneath the oil filter and turn
filter counterclockwise to remove. Discard according to local
regulations.

Maintenance

NOTE:
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