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4.1
SERVICE SCHEDULE
4.1.1 AUTHORIZED OPERATOR
MAINTENANCE FUNCTIONS
4.1.1.1 Every Month or 100 Hours
(whichever comes first)
• Test standby generator system.
• Inspect battery (batteries) and cables.
• Check engine oil level.
• Check gearbox oil level (if so equipped).
• Check engine coolant level.
• Check generator ground connections.
• Test/inspect starting aids.
4.1.1.2 Every Three Months or Every 120
Hours
(whichever comes first)
• Inspect and test fuel system and connections.
• Inspect exhaust system.
• Inspect/test fuel supply system.
4.1.2 AUTHORIZED SERVICE TECHNICIAN
MAINTENANCE FUNCTIONS
4.1.2.1 After First 30 Hours of Operation
• Inspect wiring.
• Change engine crankcase oil and oil filter.
• Inspect engine fan belts.
• Inspect battery (batteries) and cables.
4.1.2.2 Every Six Months or Every 200 Hours
(whichever comes first)
• Change engine oil and filter.
• Lubricate engine controls.
• Service engine air cleaner.
• Service engine fuel filter.
• Inspect AC generator.
• Test engine safety controls.
• Inspect fan belts.
• Check engine coolant level.
• Inspect engine cooling system hoses.
• Check optional starting aids.
• Check battery (batteries).
• Check engine compression.
• Check electrical connections.
• Check/test annunciator panel.
• Perform operational test.
Section 4 – Maintenance
Generac Standby Generator Sets
4.1.2.3 Annually or Every 600 Hours
(whichever comes first)
• Check engine valve clearance.
• Test fuel injection nozzles.
• Test injection timing.
• Inspect all wiring.
• Test engine starter operation.
• Drain water from fuel tank.
• Retorque fan bolts.
• Drain and refill gearbox (If so equipped, contact
sales for availability.)
4.1.2.4 Every Two Years
• Replace all rubber hoses.
• Replace engine fan belts.
• Inspect the Standby Generator System.
• Drain, flush, refill cooling system.
4.1.2.5 Every 1,000 Operating Hours
• Inspect engine DC alternator.
• Inspect engine starter.
• Retorque engine mounting brackets.
• Remove/test fuel injection pump.
• Remove/test cooling system thermostat.
4.1.2.6 As Required
• Bleed engine fuel system.
4.2
PERIODIC MAINTENANCE
A rigorous program of scheduled periodic mainte-
nance should be established and maintained. Such a
program, if adhered to diligently, will provide added
assurance that your power system functions proper-
ly when it is needed.
Keeping a "Maintenance Log" is highly recommended.
Such a log should be a continuous record of repairs,
parts replacements, gauge and instrument readings
during operational tests, etc.
Generac recommends that a "Customer Maintenance
Inspection Agreement" be established between the
user of this equipment and the installing Generac
Authorized Service Dealer. Under this agreement,
(Part No. 53263), a Generac Authorized Service
Technician performs prestart and engine running
tests and checks at six-month and one-year intervals.
Ask your Generac Authorized Service Dealer (or con-
sult the factory) about this agreement.
The tasks listed in the "Service Schedule" (Page 17)
cover the minimum recommended maintenance
requirements for this equipment.
Note that many of the tests and checks listed in the
schedule are to be performed only by a Generac
Authorized Service Technician. Fluid capacities and
recommendations, as well as other applicable speci-
fications, are listed in "Specifications" (Page 7).
Generac
®
Power Systems, Inc. 13
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