Operating The Dpf Thermal Processing Unit; Pre-Treatment Cycle; Regeneration Cycle - OTC 5281 Manual Del Usuario

Operation
Operating the
DPF Thermal Processing Unit
The DPF Thermal Processing Unit is
programmed to control the temperature in the
chamber at a rate that will not crack the substrate
of the DPF. When the cycle is complete, the
program decreases temperature at a controlled
rate. The entire cycle takes about fifteen hours.
Note: The DPF Thermal Processing Unit has
been pre-programmed for this application, and
the program cannot be altered by the user.
Regeneration Cycle (mandatory)
The Regeneration Cycle is used to clean all
DPFs, including those filters that have been
prepared by using the Pre-Treatment Cycle.
1. After the DPF has been loaded into the
unit according to the instructions outlined in
Load the DPF,
4
Press
2. The word USER appears on the display.
1
Press
Three LEDs beside the digital readout either
illuminate or pulse on and off. The heating
coils inside the chamber are energized, and
the digital readout changes to show the
increasing temperature inside the chamber.
Pre-Treatment Cycle (optional)
The Pre-Treatment Cycle prepares a DPF for
regeneration by burning off excess soot and other
unburned hydrocarbons at a lower temperature,
which minimizes the risk of fire.
Unburned hydrocarbons will be visible on the
surface of the DPF as liquids, oils, or greasy
solids. The Pre-Treatment Cycle is provided to
prepare DPFs that are heavily laden with soot
and other unburned hydrocarbons before the

Regeneration Cycle.

Note: DPFs that undergo the Pre-Treatment
Cycle must then undergo the Regeneration
Cycle. The Pre-Treatment Cycle alone is not
sufficient to clean a DPF.
8
ENTER/
START
Note:
•
Normal noises during operation include a
clicking sound when relays and switches
cycle off and on, and a humming sound
made by the vibration of the heating
elements.
•
Hairline cracks in the firebrick are normal.
The cracks function as expansion joints,
expanding and contracting as the unit cools
and heats.
WARNING: To prevent
personal injury,
•
RISK OF FIRE. Carefully touch the power
cord while the thermal unit is operating. It
is normal for the power cord to feel warm
to the touch, but if it feels hot, immediately
turn OFF the unit and have an electrician
inspect the circuit.
•
RISK OF FIRE. Do not open the door to the
chamber during a cycle. Opening the door
allows hot air to escape and, under certain
conditions, could cause a fire.
•
RISK OF FIRE. This process is not
designed for DPFs that are plugged as a
result of excessive fluids in the exhaust
system, such as coolant, fuel, or oil.
•
EXCESSIVE SMOKE. If excessive smoke
is seen escaping from the chamber, STOP
THE CYCLE AND VENTILATE THE AREA.
Keep the chamber door shut, and turn the
unit OFF.