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Generac
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Power Systems, Inc. 19
Section 4 — Maintenance
Guardian Liquid-cooled 40 kW Generator
4.12 SERVICE SCHEDULE
ATTENTION: It is recommended that all service work
be performed by the nearest Generac/Guardian Authorized Dealer.
SYSTEM/COMPONENT PROCEDURE FREQUENCY
X = Action Inspect Change Clean W = Weekly
R = Replace/Adjust as Needed M = Monthly
* = Notify Dealer Y = Yearly
if Repair is Needed. H = Hours
FUEL
Fuel lines and connections* X EVERY 3 M
LUBRICATION
Oil level X M
Oil X FIRST 30 H,
EVERY 150 H / 6 M
Oil filter X FIRST 9 H,
EVERY 150 H / 6 M
Oil line leakage* X 100 H
COOLING
Engine cooling system* X M
Coolant X Y
Enclosure louvers X X W
EXHAUST
Exhaust system X EVERY 3 M
Retorque Exhaust Manifold* X FIRST 100 H AND
EVERY 800 H
BATTERY
Charge and condition X R X EVERY 3 M
FAN BELT
Tension and condition* X R EVERY 3 M
ENGINE
Retorque cylinder head* X FIRST 100 H AND
EVERY 800 H
Retorque intake manifold* X FIRST 100 H AND
EVERY 800 H
Starter motor* X R EVERY 500 H
DC alternator* X R EVERY 500 H AND Y
Air cleaner* X R EVERY 500 H
Compression* X EVERY 800 H
Valve clearance* X R EVERY 800 H
Governor* X R Y
Safety devices* X R EVERY 6 M
Spark plugs X R 500 H AND Y
Ignition system* X R EVERY 3 M
GENERAL
Overall condition X X M
Exercise system W
COMPLETE TUNE-UP* TO BE COMPLETED BY A GENERAC/ Y
GUARDIAN AUTHORIZED DEALER