 |
|||
|
|
|||
|
Page Title:
ELECTRICAL TROUBLESHOOTING - continued |
|
||
| ||||||||||
|
|
 TM 9-2320-386-24-1-1
0012 00
Electrical Troubleshooting (Contd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Remove lead 54A from fuel shutoff solenoid.
a. Using multimeter, check for voltage at lead 54A and fuel shutoff solenoid terminal.
b. If voltage is present, replace fuel shutoff solenoid (WP 0050 00).
c. If voltage is not present, go to test 2.
Test 2. Check for voltage at fuel shutoff switch.
Step 1. Remove lead 54 from fuel shutoff switch.
a. Using multimeter, check for voltage at lead 54 and fuel shutoff switch.
b. If voltage is present, go to step 2.
c. If voltage is not present, go to malfunction 2, test 4.
Step 2. Check for continuity of fuel shutoff switch.
a. Remove lead 54A from fuel shutoff solenoid.
b. Set multimeter to measure continuity.
c. If continuity is found, replace lead 54A.
d. If continuity is not found, replace fuel shutoff switch (WP 0103 00).
END OF TESTING!
CHARGING SYSTEM (60 AMP)
5. NO ALTERNATOR OUTPUT (BATTERY GAUGE IN LEFT-HAND RED)
NOTE
Voltage regulator is built into alternator.
If STE/ICE-R is available, perform NG50 Charging Circuit Tests
Test 1. Check for loose or missing fan drivebelt.
Adjust and replace fan drivebelt (WP 0084 00).
Test 2. Test charging system output voltage.
Step 1. Open door of battery compartment, remove battery box, and place on running board
(TM 9-2320-386-10).
Step 2. Use multimeter to check battery voltage.
NOTE
If vehicle is equipped with a slave receptacle, check voltage at
receptacle.
Step
3.
Start engine (TM 9-2320-386-10).
Step
4.
Set engine speed at 1200 rpm.
Step
5.
Turn vehicle headlights and accessories to ON position.
Step
6.
Use multimeter to check battery voltage. Charging voltage on batteries should be
28.0 0.2 Vdc.
a. If battery voltage measures 24 Vdc, alternator has no output. Go to test 3 and
check input voltage.
b. If battery voltage is between 24 and 26 Vdc, alternator output is weak. Go to
test 3 and check input voltage.
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for a printable version