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19 690 01 Rev. --
KohlerEngines.com
Electrical System
BATTERY CHARGING SYSTEM
NOTE: Observe following guidelines to avoid damage to electrical system and components:
●
Make sure battery polarity is correct. A negative (-) ground system is used.
●
Disconnect recti
fi
er-regulator plug and/or wiring harness plug before doing any electric welding on equipment
powered by engine. Also, disconnect all other electrical accessories in common ground with engine.
●
Prevent stator (AC) leads from touching or shorting while engine is running. This could damage stator.
These engines are equipped with a 20 or 25 amp regulated charging system.
20/25 Amp Regulated Charging System
B
C
E
F
A
D
A
Battery
B
Starter
C
Fuse
D
Recti
fi
er-Regulator
E
Connector Block
F
Flywheel Stator
Assembly
Stator
Stator is mounted on crankcase behind
fl
ywheel. Follow procedures in Disassembly and Reassembly if stator
replacement is necessary.
Recti
fi
er-Regulator
NOTE: When installing recti
fi
er-regulator, take note of terminal markings and install plug(s) accordingly.
NOTE: Disconnect all electrical connections attached to recti
fi
er-regulator. Testing may be performed with recti
fi
er-
regulator mounted or loose. Repeat applicable test procedure 2 or 3 times to determine condition of part.
Recti
fi
er-regulator is mounted on blower housing. To replace, disconnect plug(s), remove mounting screws, and
ground wire or metal grounding strap.
Testing recti
fi
er-regulator may be performed as follows, using appropriate recti
fi
er-regulator tester.
To test 20/25 amp recti
fi
er-regulators:
1. Connect tester ground lead (with spring clamp) to body of recti
fi
er-regulator.
2. Connect red lead from tester to middle terminal labeled B+.
3. Connect black leads from tester to both outer AC terminals on recti
fi
er-regulator.
4. Plug tester into proper AC outlet/power for tester being used. Turn on power switch. POWER light should be
illuminated and one of four status lights may be lit as well. This does not represent condition of part.
5. Press TEST button until a click is heard and then release. Momentarily one of four status lights will illuminate
indicating partial condition of part.
Summary of Contents for Command Pro ECV850
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