62-11175 COMFORTPRO SERVICE MANUAL
3-5
SYMPTOM
PROBABLE CAUSE
SOLUTION
REFERENCE
APU suddenly stops
•
No fuel
•
Check fuel stand pipe length/fuel level
in tank
•
A-8
(no message on Driver
•
Air in the fuel system
•
Bleed air
•
A-8
Control Panel display)
•
Water in fuel system
•
Drain fuel tank(s) and replace
•
A-3, A-8
fuel filters
•
Faulty communication between the
•
Check APU control cable, and
APU Control Unit, CCU Control
Driver Control Panel cable for shorts
Board and/or the Driver Control Panel
or opens/replace
•
Fuel solenoid faulty
•
Check for rust in plunger/wiring
•
3-13
•
Alternator belt loose or broken
•
Tighten/replace
•
Kubota Manual*
•
Alternator faulty
•
Repair/replace
•
3-15
•
Low battery voltage
•
Check battery cables/charge battery
APU stops 15 seconds
•
Low oil pressure
•
See "Low oil pressure"
•
3- 4
after starting sequence
•
Overheat
•
See "Engine overheated"
•
3- 4
completes
("Check APU"
•
Truck engine interlock (optional)
•
Stop truck engine and re-start APU
•
A-13
message on Driver Control
Panel display)
APU stops after start
•
Alternator belt loose or broken
•
Tighten/replace
•
A-2
sequence completes.
•
Alternator Defective
•
Repair/replace
•
3-15
APU will only run with
•
Poor connection between alternator
•
Check connection / wire for breaks
start button depressed
and APU controller (brown wire)
(no message on Driver
Control Panel display)
No "GLOWING" message
•
Faulty communication between the
•
Check APU control cable, and
on the Driver Control
APU Control Unit, CCU Control
Driver Control Panel cable for shorts
Panel, but APU will start
Board and/or the Driver Control Panel
or opens/replace
and run normally
No "GLOWING" message
•
Faulty communication between the
•
Check APU control cable, and
on the Driver Control
APU Control Unit, CCU Control
Driver Control Panel cable for shorts
Panel and APU will only
Board and/or the Driver Control Panel
or opens/replace
run with ON button
depressed
APU only ‘clicks’ after
•
Faulty APU Controller
• Replace APU Controller
glowing has finished
and is attempting to start
(ALT POWER light not on,
ALT F/B light does not
come on during glowing)
APU only ‘clicks’ after
•
Loose connection from APU controller
glowing has finished
to alternator, either at the APU
and is attempting to start
controller end or at the Alternator end
(ALT F/B light on,
• Faulty Alternator
APU controller does not
•
Faulty APU Harness
• Troubleshoot the Alternator
• 3-15
come on during glowing)
This will occur when the APU
Control Unit sees a problem
during or after startup
This will occur when the APU
Control Unit does not see the
Alternator feed back signal
during or after start up.
*Kubota Workshop Manual 97897-02400
Содержание ComfortPro PC6000
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