Kohler Aegis LH775 Owner's Manual - Page 14
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3. The v-groove of each pulley (upper and lower)
should not be bent, nicked, or damaged. Pulley
mounting areas and lower pulley shims should
be free of any cracks or elongation. See Figure 20.
Figure 20. Pulley and Drive Belt.
4. The drive belt is designed and constructed for
this application. Do not use a substitute belt.
Check the overall condition of the belt. If belt is
cracked, damaged, or adequate tension does not
exist, have necessary servicing performed by an
authorized Kohler Engine Service Dealer.
Clean Air Intake/Cooling Areas
To ensure proper air circulation and cooling, make
sure the serviceable screen, radiator cooling fins, fan
assembly and external surfaces of the engine are kept
clean at all times.
Every 100 hours of operation (more often under
extremely dusty, dirty conditions), thoroughly clean
the radiator cooling fins, fan assembly, intake system
and external surfaces of the engine. Make sure all
parts are reinstalled before starting the engine.
Clean the cooling fins of the screen and radiator with
a soft brush or blow out, using clean, compressed air.
See Figure 21. Do not use a high pressure washer, to
avoid damaging the cooling fins.
Figure 21. Clean Radiator Cooling Fins and Screen.
14
NOTE: Operating the engine with a restricted air
intake screen or radiator, damaged/broken fan
assembly, or missing fan shroud will cause
engine damage due to overheating.
Ignition System
Carbureted Engines - Use an electronic Capacitive
Discharge (CD) ignition system. Other than periodically
checking/replacing the spark plugs, no maintenance,
timing, or adjustments are necessary or possible with
this system.
EFI Engines - Incorporate a computer-controlled
battery ignition system with individual coils. Other
than periodically checking/replacing the spark plugs,
no maintenance, timing, or adjustments are necessary
or possible with this system.
Figure 22.
In the event starting problems should occur, which are
not corrected by replacing the spark plugs, see your
Kohler Engine Service Dealer for trouble analysis.
Check Spark Plugs
Annually or every 200 hours of operation (whichever
comes first), remove the spark plugs, check condition,
and reset the gap or replace with new plugs as
necessary. Every 500 hours of operation replace the
spark plugs. The standard spark plug is a Champion
RC14YC (Kohler Part No. 66 132 01-S). Equivalent
alternate brand plugs can also be used.
1. Before removing the spark plug, clean the area
around the base of the plug to keep dirt and
debris out of the engine.
2. Remove the plug and check its condition. Replace
the plug if worn or reuse is questionable.
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