DCL MINE-X
SOOTFILTER
®
13/16
INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
LAST REVISED: SEPTEMBER 2009
MINE-X SOOTFILTER
®
4.2 Manual Backpressure Checks
When taking manual backpressure measurements, operate the engine at high idle. At an exhaust port upstream
of the DPF install a manual backpressure gauge. Record results in a log sheet.
Table 4.2 – Manual Backpressure Check
Reading Filter
Condition
Actions
< 5” wc
(<1.25 kPa)
DPF is damaged
Remove DPF and contact DCL for further
assistance
5-25” wc
(2.5-6.25 kPa)
DPF is clean
No action
25-40” wc
(6.25-10 kPa)
DPF is moderately loaded with soot
and/or ash
Level 1
or
Level 2 Cleaning
is required
within the next 50 hours of operation
> 40” wc
(>10 kPa)
DPF is highly loaded with soot and/or
ash
Remove DPF immediately and conduct
Level
2 Cleaning
4.3 Level 1 Cleaning
4.3.1 Standard Design
1.
Remove the DPF centrebody using the quick-release clamps. Be sure to properly support the DPF
upon removal as the filters are fragile and can break if dropped. Depending on the size of the DPF this
may take two people.
2.
Attach to the filter inlet (sooted end of DPF), a vacuum which feeds into a high-efficiency particle
arrestance (HEPA) filter making sure that all connections are airtight to prevent soot/ash from escaping
before being forced through the HEPA filter.
3.
Using compressed air (~80 psi), blow the particulates/ash from the outlet end of the DPF towards the
inlet of the DPF, through the vacuum and through the HEPA filter. The air gun should be held a
minimum of 2 inches from the surface of the DPF to prevent damage to the filter itself.
4.
Move the air gun around to ensure that all of the DPF channels on the outlet have been exposed to the
compressed air. Compressed air cleaning should be performed for an approximate duration of 10
minutes.
5.
Remove the HEPA filter and store away for reuse or dispose of if saturated with soot/ash.
6.
Reinstall DPF centrebody on given application and fasten securely using all applicable mounting
hardware.
7.
Perform a manual backpressure check at no load and high idle conditions to ensure that the
Level 1
Cleaning
reduced the backpressure build-up due to the soot/ash removal. Backpressure should be less
than initial backpressure reading before cleaning procedure.
4.3.2 Custom Design
The majority of custom DPF designs are developed to replace the original equipment muffler. The two
most popular designs allowing access to the DPF for cleaning are shown in Figure 4.1 and Figure 4.2
below.
