Battery Charging System - Kohler Command CV17 Service Manual

Electrical System
To test ASAM only using 25 761 21-S tester:
NOTE: SAM must be at room temperature when tested.
Disconnect all SAM leads, isolating it from main
wiring harness and ignition module(s). Testing
may be performed with module mounted or
loose.
NOTE: Do not allow alligator clip leads to touch each
other.
1. Connect tester to SAM by attaching:
a. Yellow tester lead to long yellow module lead.
b. Brown tester lead to long brown module lead.
c. Red tester lead to red module lead.
d. Green tester lead to green module lead.
2. Check SAM part number stamped on side of
housing. Verify that you have an analog SAM
(ASAM) Part No. 24 584 10 or lower, not a digital
SAM (DSAM) Part No. 24 584 18 and higher. Follow
sub-step a for testing an ASAM with this tester.
Digital SAM (DSAM) modules require Tester 25 761
40-S for proper testing.
a. Depress tester button and hold it down. After
approximately four seconds, a numerical
sequence should be displayed, beginning with 1
or 2 and continuing to 8 or 9, followed by a letter
P (pass) or F (fail). Do not release tester button
until test cycle completes and display goes off. If
you get a (–) sign instead of numerical sequence,
and/or an F at end of cycle, SAM is probably bad.
Recheck all connections, check condition of
tester battery and repeat test. If you get (–) sign
and/or F again in retest, replace that SAM.
3. Disconnect yellow and brown tester leads from long
module leads. Connect brown tester lead to short
brown module lead. Connect yellow tester lead to
short yellow (or pink) module lead. Leave red and
green leads connected. Repeat step 2.
To test DSAM and ASAM using 25 761 40-S tester:
NOTE: Do not allow alligator clip leads to touch each
other.
NOTE: SAM must be at room temperature when tested.
Disconnect all SAM leads, isolating it from main
wiring harness and ignition module(s). Testing
may be performed with module mounted or
loose.
NOTE: Some modules contain two black ground leads,
with one containing a white stripe. Do not
connect to black/white lead with bullet connector
or a Fail test result will occur, regardless of
actual condition.
Test procedure for twin cylinder SAMs will vary slightly,
depending on whether module is analog (ASAM) or
digital (DSAM).
1. Check SAM part number stamped on end of
housing.
a. If it is an ASAM (24 584 09 or 24 584 10),
separate short yellow and brown leads from long
ones. Each set will be tested separately. Connect
tester to SAM as follows:
44
● Yellow tester lead to long yellow module lead.
● Brown tester lead to long brown module lead.
● Red tester lead to red module lead.
● Black tester lead to black or green module lead.
Remaining tester leads (pink and brown with black
band) are not used for testing ASAMs.
b. If it is a DSAM (all except 24 584 09 or 24 584
10), connect tester as follows:
● Yellow tester lead to long yellow module lead.
● Brown tester lead to long brown module lead.
● Red tester lead to red module lead.
● Black tester lead to green or black module ground
lead with eyelet terminal.
● Pink tester lead to short yellow or pink module
lead.
● Brown tester lead with black band or terminal to
short brown module lead.
2. Recheck SAM part number, noting last two digits.
Refer to table below or on tester faceplate to
determine test number to be used.
SAM Part
No.
Test No.
SAM Part
No.
Test No.
3. Depress tester button repeatedly until correct test
number appears on display. After a few seconds,
test number will fl ash three times and test will begin.
A reverse numerical sequence will be displayed,
starting with a 6 and progressing down to 1, followed
by a P (pass) or F (fail), indicating condition of part.
If testing an ASAM, return to step 1 and move yellow
and brown tester leads to short set of module leads,
then repeat test.
4. If you get a (–) sign instead of numerical sequence,
and/or an F at end of test cycle, recheck all
connections, check condition of tester battery and
repeat test. If you get (–) or F sign again in retest
replace SAM.

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 rectifi er-regulator plug and/or wiring
harness plug before doing any electric welding on
equipment powered by engine. 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.
Most engines are equipped with a 15 or 20 amp
regulated charging system. Some have a 25 amp
regulated charging system. Some engines utilize a 3
amp unregulated system with optional 70 watt lighting
circuit.
KohlerEngines.com
12 584 12
24 584 30 24 584 33
24 584 09 24 584 34 24 584 32
24 584 31
24 584 10
1 2
24 584 18 24 584 19 24 584 38
-
24 584 27
5 6
3 4
24 584 39
7 8
24 690 07 Rev. B