Kohler Command Pro CV980 User Manual Page 57

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7.7
Section 7
Electrical System and Components
7
Troubleshooting DSAI Ignition Systems
ȱȱȱ¢ȱȱȱȱȱȱ
ȱȱȱȱȱȱǯȱȱȱ¢ȱ
Ȧȱȱȱǰȱȱǰȱ
ǰȱȱȱȱȱ¢ȱȱ
ǯȱȱ¢ȱȱ¢ȱ
ȱȱȱȱǰȱȱȱȱ
ȱȱȱȱȱȱ¢ȱ
ȱȱȱȱȱȱǯ
ȱȱȱȱȱĞȱȱȱ
ȱǯȱȱȱȱȱǰȱ
ȱȱ¡ȱǯȱȱȱȱȬȱ
wires are connected, including the spark plug leads.
ȱȱȱȱȱęȱ¢ǯȱȱ
sure the ignition switch is in the RUN position.
Test Procedure for DSAI Ignition Systems
The following procedures are provided for
ȱȱȱȱȱȱ
engines. They will allow you to isolate and pinpoint
ȱȱǻǼǯ
Special Tools Required:
Hand Tachometer
ȱ Ȋȱ ȱȘȱǻȱȱǯȱŘśȱŚśśȱŖŗȬǼ
ȱ Ȋȱ ȱȱ
ȱ Ȋȱ ȬȱǻǼ
6SHFL¿FDWLRQV5HTXLUHG
ȱ Ȋȱ ȱȱȱŖǯŝŜȱȱǻŖǯŖřŖȱǯǼ
ȘDZȱ ȱȱǻȱȱǯȱ
ȱ ŘśȱŚśśȱŖŗȬǼǰȱȱȱȱȱȱȱ
on these engines. Use of any other tester can
ȱȱȱęǯȱȱĴ¢ȱȱ
ȱȱȱȱ¢ȱȱȱ¢ȱ
ȱȱȱ¢ȱȱȱȱ
ǻȱĴ¢ȱȱȱȱȱȱȱ
ȱȱȱȱǰȱȱȱȂȱ
ȱǼǯȱȱȱȱȱȱȱȱ
and all external loads are disconnected.
Test 1. Isolate and Verify the Trouble is Within the
Engine Ignition System
ȱ ŗǯȱ ȱȱȱȱȱȱȱ
ȱȱȱȱȱȱǯȱ
Separate the connectors and remove the white
ȱȱȱȱȱǯȱȱȱ
connectors and position or insulate the kill lead
terminal so it cannot touch ground. Try to start
ȱȱȱ¢ȱȱȱȱȱ
is still present.
DZȱ ȱȱȱȱȱȱȱ¢ȱȱȱ
testing, you may need to ground the kill lead
to shut it down. Because you have interrupted
the kill circuit, it may not stop using the
switch.
ȱ ǯȱ ȱȱȱȱ¢ǰȱȱȱ¢ȱȱ
ȱȱȱǯȱȱȱ¢ȱǰȱ
wires, connections, safety interlocks, etc.
ȱ ǯȱ ȱȱȱǰȱȱȱȱȱ
with the ignition or electrical system of the
ǯȱȱȱȱȱȱȱȱȱ
is completed.
c. Identify the white kill lead of the engine wiring
ȱǯȱȱȱȱȱȱ
known good ground location. The engine should
kill completely. If not, or only one cylinder is
ěǰȱȱȱȱŚǰȱȱȱȱȱȱȱȱ
ȱȱȱȱěȱȱǯȱ
Test 2. Test for Spark
ȱ ŗǯȱ ȱȱȱǰȱȱȱȱ
ȱǯȱȱȱȱȱȱȱȱ
ȱȱȱȱǻȱȱǯȱ
ŘśȱŚśśȱŖŗȬǼǰȱȱĴȱȱȱȱȱȱ
engine ground.
DZȱ ȱȱȱȱǰȱȱȱȱ
ȱ¢ȱȱȱ¢ǯȱ
ǰȱȱ¢ȱȱȱȱǰȱȱ
ȱȱȱȱǯȱȱȱ
ȱȱȱȱȱȱȱȱ
ȱȱȱǯȱȱȱȱ
the engine or perform tests with one spark
plug lead disconnected and not grounded, or
permanent system damage may occur.
Page view 56
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