TROUBLESHOOTING AND ELECTRICAL
SYSTEM: DIESEL VEHICLES
Test Procedures
12
NOTE:
A fully charged battery that is in good condition should have a specific gravity of at least 1.225 in all cells and
the difference in the specific gravity of any two cells should be less than 50 points. Open-circuit voltage, the
battery voltage with no electrical load, should be at least 12.4 volts.
Load Test
NOTE:
Ensure that the battery is fully charged before performing the following test procedure.
1.
Disable the vehicle.
See Disabling the Vehicle on page 1-3.
2.
Check for loose or corroded battery terminal connections. Clean, tighten and replace connections as necessary.
3.
Connect a 160-ampere load tester to the battery posts.
See following NOTE.
NOTE:
If a load tester is not available, a load can be placed on the battery by removing the fuel shut-off solenoid
wires and activating the starter motor. If this method is used, the voltage must be read when the starter
motor is turning.
See following CAUTION.
CAUTION
• Activating the starter for more than a few seconds could result in damage to the starter motor, the
starter, and/or the flywheel gears.
4.
Turn the load tester switch to the ON position.
5.
Read the battery voltage after the load tester has been turned ON for 15 seconds. The minimum acceptable
battery voltage for proper engine starting is approximately 9.6 VDC.
6.
If the battery voltage is acceptable, or if the electrical problem continues after the battery has been replaced,
test the electrical circuits.
7.
If the voltage reading exceeds 9.6 volts at 70 °F (21 °C) (electrolyte temperature), check the starter.
See the
Kubota D722 diesel engine manual (CC P/N 103840201). See also the following NOTE.
NOTE:
Record the voltage reading at 70 °F (21 °C). At lower electrolyte temperatures, the voltage reading will be lower.
8.
If the reading is less than 9.6 volts at 70 °F (21 °C) (electrolyte temperature), check the battery electrolyte
in each cell.
TEST PROCEDURE 2 – Fuse
See General Warnings, Section 1, Page 1-2.
WARNING
• Failure to use properly rated fuse can result in a fire hazard.
The fuse block is located on the electrical component mounting plate
1.
Disconnect battery.
See Side-Post Battery: Disconnecting the Battery – Gasoline/Diesel Vehicles on page
1-3.
See Top-Post Battery: Disconnecting the Battery- Gasoline/Diesel Vehicles on page 1-4.
2.
Remove the electrical component cover.
3.
Ensure the wires are connected correctly and are tight. If they are not, rewire or tighten as necessary.
4.
Remove the fuse to be tested from the fuse block.
5.
Connect the probes of a multimeter set to 200 ohms to the fuse terminals. The reading should be continuity. If
there is no continuity, determine and repair the cause of the fuse failure. Replace the fuse with a properly
rated new one.
See following WARNING.
2016 Carryall 1500/1700 and XRT 1550 Maintenance and Service Manual
Page 12-13
Summary of Contents for Carryall 1500 2016
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