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Electronic Governor
The governor control system consists of an electronic
isochronous governor, an electro-mechanical actuator,
and a magnetic pickup. Electrical pulses are supplied by
the magnetic pickup to the isochronous governor
(control unit) each time one of the ring gear teeth passes
the pickup.
The control unit then compares the
frequency of these pulses to a pre-set reference and
provides a signal to the actuator which, in turn, controls
the carburetor and hence the engine speed. This is a
closed loop system and typically provides ± 0.25%
steady state speed regulation.
Air Cleaner
The engine is equipped with a dry-type air cleaner.
Every 50 hours (more often if operating under extremely
dusty or dirty conditions) remove element and service
by tapping element lightly against flat surface to
dislodge loose surface dirt. Do not clean in any liquid or
blow out with compressed air as this will ruin filter
material in element. Service air cleaner after each 50
hours of operation. If dirty, bent, or damaged replace
element with genuine Kohler replacement.
3-12 Scheduled Maintenance
Figure 3-14. Air Cleaner Service
Replacement of the air filter must be of a flame proof,
self-extinguishing material (Kohler Part No. 278612).
1-905
NOTE
TP-5393 9/93
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