Section 3 Scheduled Maintenance; Alternator Service; Engine Service - Kohler 20-2250 kW Operation

Under normal operating conditions, the generator set's
alternator requires no normal service.
prestart checklist in Section 2.1 for a list of routine
checks.

3.1 Alternator Service

When operating the generator set under dusty or dirty
conditions, use dry compressed air to blow dust out of
the alternator while the generator set is running. Direct
the stream of air through openings in the generator set
end bracket.

3.2 Engine Service

Perform engine service at the intervals specified in the
engine manufacturer's service literature. Contact an
authorized service distributor/dealer to obtain service
literature.
Note: Have maintenance work, including battery
service, performed by appropriately skilled and
suitably trained maintenance personnel familiar
with generator set operation and service.
WARNING
Accidental starting.
Can cause severe injury or death.
Disconnect the battery cables before
working on the
Remove the negative (--) lead first
when disconnecting the battery.
Reconnect the negative (--) lead last
when reconnecting the battery.
TP-6161 1/12
Consult the
generator set.

Section 3 Scheduled Maintenance

Disabling the generator set.
cause severe injury or death.
generator set or connected equipment, disable the generator
set as follows: (1) Move the generator set master switch to the
OFF position. (2) Disconnect the power to the battery charger.
(3) Remove the battery cables, negative (--) lead first.
Reconnect the negative (--) lead last when reconnecting the
battery. Follow these precautions to prevent starting of the
generator set by an automatic transfer switch, remote
start/stop switch, or engine start command from a remote
computer.
Hot engine and exhaust system.
Can cause severe injury or death.
Do not work on the generator set until
it cools.
Servicing the exhaust system.
severe injury or death. Do not touch hot engine parts. The
engine and exhaust system components become extremely
hot during operation.
Hazardous voltage.
Can cause severe injury or death.
Operate the generator set only when
all guards and electrical enclosures
are in place.
Servicing the generator set when it is operating. Exposed
moving parts can cause severe injury or death. Keep
hands, feet, hair, clothing, and test leads away from the belts
and pulleys when the generator set is running. Replace
guards, screens, and covers before operating the generator
set.
Accidental starting can
Before working on the
WARNING
Hot parts can cause
WARNING
Moving parts.
Section 3 Scheduled Maintenance 21