Section 4 Maintenance and Troubleshooting
Maintenance
Regular maintenance will improve perfor-
mance and extend engine/equipment life.
Generac Power Systems, Inc. recommends
that all maintenance work be performed by an
Independent
Authorized
(IASD). Regular maintenance, replacement,
or repair of the emissions control devices and
systems may be performed by any repair shop
or person of the owner's choosing. To obtain
emissions control warranty service free of
charge, the work must be performed by an
IASD. See the emissions warranty.
NOTE: Call 1-888-GENERAC (1-888-436-
3722)
with
questions
replacement.
Maintenance Schedule
Follow
maintenance
whichever occurs first according to use.
NOTE: Adverse conditions will require more
frequent service.
NOTE: All required service and adjustments
should be each season as detailed in the fol-
lowing chart.
At Each Use
Check engine oil level
Every Season
Check valve clearance***
Every 200 Hours or Every Season
Inspect/clean air cleaner filter**
Change oil and oil filter
Check engine speed control
Drain fuel tank & replace outlet fuel filter
Every 1000 Hours
Check compression
Every 1500 Hours
Inspect, clean & test fuel injection nozzle
Every 2000 Hours
Check & replace fuel hoses
14
Service
Dealer
about
component
schedule
intervals,
ǂ*
ǂ Change oil after first 50 hours of opera-
tion, 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 they cannot be adequately cleaned.
*** Check valve clearance and adjust if
necessary after first 50 hours of operation
and every 400 hours thereafter.
Preventive Maintenance
Dirt or debris can cause improper operation
and equipment damage. Clean generator
daily or before each use. Keep area around
and behind muffler free from combustible
debris. Inspect all cooling air openings on
generator.
WARNING
Personal injury. Do not insert any object through the
air cooling slots. Generator can start at any time and
could result in death, serious injury, and unit damage.
• Use a damp cloth to wipe exterior surfaces
clean.
• Use a soft bristle brush to loosen caked on
dirt, oil, etc.
• Use a vacuum to pick up loose dirt and
debris.
• Low pressure air (not to exceed 25 psi [172
kPa]) may be used to blow away dirt.
Inspect cooling air slots and openings on
generator. These openings must be kept
clean and unobstructed.
NOTE: DO NOT use a garden hose to clean
generator. Water can enter engine fuel system
and cause problems. If water enters generator
through cooling air slots, some water will be
retained in voids and crevices of rotor and sta-
tor winding insulation. Water and dirt buildup
on generator internal windings will decrease
insulation resistance of windings.
Engine Maintenance
Engine Oil Recommendations
To maintain the product warranty, the engine
oil should be serviced in accordance with the
recommendations of this manual. For your
convenience, maintenance kits designed and
intended for use on this product are available
from the manufacturer that include engine oil,
oil filter, air filter, spark plug(s), a shop towel
and funnel. These kits can be obtained from
an Independent Authorized Service Dealer
(IASD).
Owner's Manual for Portable Generator
(000142a)