Kohler Command Pro EFI ECH940 Service Manual page 58

Electrical System
Carbon Fouled
Soft, sooty, black deposits indicate incomplete
combustion caused by a restricted air cleaner, over rich
carburetion, weak ignition, or poor compression.
Overheated
Chalky, white deposits indicate very high combustion
temperatures. This condition is usually accompanied
by excessive gap erosion. Lean throttle body settings,
an intake air leak, or incorrect spark timing are normal
causes for high combustion temperatures.
BATTERY
A 12-volt battery with 400 cold cranking amps (cca) is
generally recommended for starting in all conditions. A
smaller capacity battery is often suffi cient if an
application is started only in warmer temperatures. Refer
to following table for minimum capacities based on
anticipated ambient temperatures. Actual cold cranking
requirement depends on engine size, application, and
starting temperatures. Cranking requirements increase
as temperatures decrease and battery capacity shrinks.
Refer to equipment's operating instructions for specifi c
battery requirements.
Battery Size Recommendations
Temperature
Above 32°F (0°C)
0°F to 32°F (-18°C to 0°C)
-5°F to 0°F (-21°C to -18°C)
-10°F (-23°C) or below
If battery charge is insuffi cient to turn over engine,
recharge battery.
58
Battery Required
300 cca minimum
300 cca minimum
300 cca minimum
400 cca minimum
KohlerEngines.com
Battery Maintenance
Regular maintenance is necessary to prolong battery
life.
Battery Test
To test battery, follow manufacturer's instructions.
FUSES
This engine has 3 blade type automotive fuses.
Replacement fuses must have same rating as blown
fuse. Use fuse chart below to determine correct fuse.
Wire Color
2 Purple Wires
1 Red Wire w/Black Stripe
1 Red Wire w/White Stripe
2 Red Wires
Fuse Replacement
1. Shut engine off and remove key.
2. Locate fuse holders.
3. Remove fuse cover and pull out fuse. Inspect
condition of fuse holder.
4. Inspect fuse for a solid fusible link or a broken
fusible link. Replace fuse if fusible link is broken. If
you are not sure if fusible link is broken, replace
fuse.
5. Insert fuse into fuse holder until it is seated properly.
Install fuse cover.
6. If replacement fuse fails, there is a problem within
circuit. Diagnostics are required. Identify which
circuit is aff ected (see EFI System for electrical
schematic) by identifying failed fuse/circuit. Perform
troubleshooting procedures appropriate for circuit
fuse that failed.
7. Install fuse holder into fuse cover.
Fuse Rating
30-amp Fuse
10-amp Fuse
10-amp Fuse
62 690 13 Rev. A