C.E. Niehoff & Co. N1509/N1511/N2003 Troubleshooting Guides - Manual (Page 8)

Page 8
TG0014D
If you have questions about your alternator or any of these test procedures, or if you need to locate a Factory Authorized Service Dealer, please contact us at:
C. E. Niehoff & Co.• 2021 Lee Street • Evanston, IL 60202 USA
TEL: 800.643.4633 USA and Canada • TEL: 847.866.6030 outside USA and Canada • FAX: 847.492.1242
E-mail us at [email protected] OR visit our Web site at www.CENiehoff.com
(CONT’D)
Section 3: Advanced Troubleshooting
Chart 5 – 28V Only – N2003 Sequence of Operation
Start
T
Steady AMBER
Read RPM
Charging system indicator
LED is “OFF.”
Wait ten seconds.
Yes No
T
Is RPM greater than 1500?
Read System Voltage
Yes No
Is System Voltage less than 20.5 V?
Steady GREEN.
System is operating
properly.
T
Steady RED
Read Alternator Voltage
Yes No
Is Alternator Voltage less than 24 V?
Trickle charge
“ON.”
Trickle charge
“OFF.”
Read Battery Voltage
Yes No
Is Battery Voltage more than 24.5 V
for one time and one time only?
T
T
T
T
T
T
T
T
T T
T T
T
T
Batteries are reconnected.
Steady GREEN.
System is operating properly.
T
T
DYNAMIC TEST — MASTER SWITCH ON, KEY ON, ENGINE ON
T
T
Batteries are disconnected.
T
Steady RED
T
Yes No
Are batteries disconnected?
T
LBCD is defective. Replace.
Connect batteries and
then go back to
“Read System Voltage”
above
T