Perkins 1106C - Battery; Can Not Reach Top Engine RPM

KENR6933 39
Troubleshooting Section
Alternator
Verify that the alternator is operating correctly. Refer
to Testing and Adjusting, “Alternator - Test”. The
alternator is
not a serviceable item. The alternator
must be replaced if the alternator is not operating
correctly. Refer to D isassembly and Assembly,
“Alternator
- Remove” and Disassembly and
Assembly , “Alternator - Install”.
i02344743
Battery
Note: This is not an electronic system problem.
Probable Causes
•
Charging circuit
•
Battery
•
Auxiliary device
Recommended Actions
Charging Circuit
If a fault in the battery charging circuit is suspected,
refer to Troubleshooting, “Alternator Will Not Charge”.
Faulty Batte ry
1. Check that the battery is able to maintain a charge.
Refer to Testing and Adjusting, “Battery - Test”.
2. If the battery does not maintain a charge,
replace the battery. Refer to the Operation and
Maintenance Manual, “Battery - Replace”.
Auxiliary Device
1. Check that an auxiliary device has drained the
battery by being left in the ON position.
2. Charge the battery.
3. Verify that the battery is able to maintain a charge
when all auxiliary devices are switched off.
i02453228
Can Not Reach Top Engine
RPM
Note: If this f
ault occurs only under load, refer to
Troubleshooting, “Low Power”.
Probable Causes
•
Diagnostic co
des
•
ECM parameters
•
Signal for the Speed demand input
•
Air intake and
exhaust system
•
Valve lash
•
Turbocharger
•
Fuel supply
•
Low compression (cylinder pressure)
•
Individual malfunctioning cylinders
•
Electronic un
it injectors
Recommended A
ctions
Diagnostic Codes
Check for active diagnostic codes on the electronic
service tool. Troubleshoot any active codes before
continuing w
ith this procedure.
ECM Parameters
1. Ensure that the problem is not a programmed
parameter.
2. Ensure that the correct mode was selected by
using the electronic service tool.
3. Use the electronic service tool to verify the correct
engine rating for the engine.
4. Use the electronic service tool to verify the
maximum engine speed limit.
5. Use the electronic service tool to reset the
parameters to the OEM specifications.
6. Ensure that the repairs have eliminated the
performance problems.