Scheduled Maintenance 3-9TP-5648 8/93
Air Cleaner Service
The air cleaner for this unit is not provided by Kohler
Co., but has been specified by the trailer manufacturer.
Theelementshouldbereplacedat400-hour or 6-month
intervals (if this schedule conflicts with the
manufacturer’s instructions, follow the manufacturer’s
recommendation); change more frequently if operating
under extremely dirty, dusty conditions. Operating the
generatorsetwithadirtyair cleaner element maycause
engine damage and also increase fuel consumption.
NOTE
Do not attempt to clean dry-type element in any liquid or
with compressed air as this will damage paper filter
material.
Governor
The mechanical-type governor is designed to keep the
engine speed constant by automatically adjusting the
amount of fuel supplied to the engine as the load
changes. No regular service is required onthe unit. The
governor is adjusted during run-in at the factory, and
further adjustment should be needed only if greatly
varying load conditions are encountered or if the
governor control degrades after extended usage.
This set is designed to operate at 60-63 Hz, 1800 rpm
under full load and 1890 rpm under no load. To check
speed, use a hand-held tachometer or a frequency
meter. See Figure 3-8. Loosen locking nut on the
speed-adjusting screw. Turn the screw in a clockwise
direction to increase speed (frequency) or in a
counterclockwise direction to decrease speed. Tighten
the locknut to secure screw at new setting.
1-932
1
2
1. Locking Nut
2. Speed Adjusting Screw
Figure 3-8. Governor
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