Kohler COMMAND CH18-745 User Manual download pdf (Page 137)

8.20

Section 8

Electrical System and Components

Problem Test Conclusion

1. Trace B+ lead from rectifier-regulator to key

switch, or other accessible connection.

Disconnect it from switch or connection.

Connect an ammeter from loose end of B+

lead to positive terminal of battery. Connect

DC voltmeter from loose end of B+ lead to

negative terminal of battery. With engine

running at 3600 RPM, read voltage on

voltmeter.

If voltage is 13.8 volts or more, place a

minimum load of 5 amps* on battery to

reduce voltage. Observe ammeter.

*NOTE: Turn on lights, if 60 watts or more.

Or place a 2.5 ohm, 100 watt

resistor across battery terminals.

1. If voltage is 13.8-14.7 and charge rate

increases when load is applied, the charging

system is OK and battery was fully charged.

If voltage is less than 13.8 or charge rate does

not increase when load is applied, test stator

(Tests 2 and 3).

2. Remove connector from rectifier-regulator.

With engine running at 3600 RPM, measure

AC voltage across stator leads using an AC

voltmeter.

2. If voltage is 28 volts or more, stator is OK.

Rectifier-regulator is faulty. Replace the

rectifier-regulator.

If voltage is less than 28 volts, stator is

probably faulty and should be replaced. Test

stator further using an ohmmeter (Test 3).

No Charge

to Battery

3a. With engine stopped, measure the resistance

across stator leads using an ohmmeter.

3a. If resistance is 0.064/0.2 ohms, the stator is

OK.

If the resistance is infinity ohms, stator is

open. Replace stator.

3b. With the engine stopped, measure the

resistance from each stator lead to ground

using an ohmmeter.

3b. If the resistance is infinity ohms (no

continuity), the stator is OK (not shorted to

ground).

If resistance (or continuity) is measured, the

stator leads are shorted to ground. Replace

stator.

1. If the voltage is 14.7 volts or less the charging

system is OK. The battery is unable to hold a

charge. Service battery or replace as

necessary.

If voltage is more than 14.7 volts, the rectifier-

regulator is faulty. Replace rectifier-regulator.

1. Perform same test as step 1 above.

Battery

Continuously

Charges at

High Rate

Troubleshooting Guide

15/20/25 amp Battery Charging Systems

When problems occur in keeping the battery charged or the battery charges at too high a rate, the problem can

usually be found somewhere in the charging system or with the battery.

NOTE: Always zero ohmmeter on each scale before testing to ensure accurate readings. Voltage tests

should be made with the engine running at 3600 RPM - no load. The battery must be good and fully

charged.

1 2 ... 132 133 134 135 136 137 138 139 140 141 142 ... 217 218

Comments to this Manuals

No comments

Kohler COMMAND CH18-745 User Manual Page 137

Comments to this Manuals

Related products and manuals for For the car Kohler COMMAND CH18-745