Handling the BT DPF-II System (Option)
© BT Industries AB 180424-040
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Handling the BT DPF-II 
System (Option)
The BT DPF System is a device which traps the minute particles
of black smoke in diesel engine exhaust gas with a DPF (diesel
particulate filter) and carries out correct maintenance (combus-
tion and elimination) by microcomputer control depending on the
trapped amount.
CAUTION!
• Do not proceed to a long-hours’ continuous operation before 
regenerating the DPF.
• When the yellow trapping indicator lamp on the display is on, 
carry out maintenance soon.
• Once the “Green/Yellow” lamp has begun to blink on the trap-
ping indicator display, with the alarm buzzer sounding, carry 
out a regeneration treatment immediately.
• Do not turn off the power during maintenance except in an 
emergency.
• If the display’s alarm lamp goes on and the alarm buzzer 
rings to an abnormality during maintenance, have the device 
inspected by your BT dealer.
• Do not allow water to get into the DPF System when your 
vehicle is being washed.
• The DPF System uses a high voltage (single phase 
AC200~240V), so be careful of electric shocks.
• The DPF System reaches high temperatures during operation 
so do not place objects that can easily catch fire, such as 
paper, etc., around it during maintenance.
• Use automobile light oil. If you use a crude fuel such as heavy 
oil, a pale smoke will be emitted and the running time and life 
span of the DPF System might be adversely affected.
• An engine that consumes a lot of engine oil will have an 
adverse affect on the DPF System, so have it serviced by your 
BT dealer.
• If white smoke (vapor, etc.) is emitted in some cases such as 
in acceleration just after starting the engine, there is nothing 
wrong with the engine system.