Kohler Command PRO ECV630 Service Manual page 82

Electrical System
BATTERY CHARGING SYSTEM
NOTE: Observe following guidelines to avoid damage to the electrical system and components:
● Make sure battery polarity is correct. A negative (-) ground system is used.
● Disconnect rectifier-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
A
A Battery
E Connector Block
Stator
Stator is mounted on crankcase behind flywheel. Follow procedures in Disassembly and Reassembly if stator
replacement is necessary.
Rectifier-Regulator
NOTE: When installing rectifier-regulator, take note of terminal markings and install plug(s) accordingly.
NOTE: Disconnect all electrical connections attached to rectifier-regulator. Testing may be performed with rectifier-
regulator mounted or loose. Repeat applicable test procedure 2 or 3 times to determine condition of part.
Rectifier-regulator is mounted on blower housing. To replace, disconnect plug(s), remove mounting screws, and
ground wire or metal grounding strap.
Testing rectifier-regulator may be performed as follows, using appropriate rectifier-regulator tester.
To test 20/25 amp rectifier-regulators:
1. Connect tester ground lead (with spring clamp) to body of rectifier-regulator.
2. Connect red lead from tester to middle terminal labeled B+.
3. Connect black leads from tester to both outer AC terminals on rectifier-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.
82
B
B Starter
Flywheel Stator
F
Assembly
KohlerEngines.com
D
F
C
E
C Fuse D Rectifier-Regulator
24 690 02 Rev. D