MAINTENANCE
Page 97
5. Install the V-band clamp to secure the outlet
module to the DPF filter module and tighten
clamp fasteners to specification. All clamps
should now be aligned and tightened.
6. Install the pressure differential tube to the
port on the catalytic filter module and tighten
the fitting securely.
A high-temperature anti-seizing compound
should always be applied to the threads of the
sensors, plugs or fittings in the exhaust system to
avoid component seizure or corrosion.
7. Lift the DPF muffler using a suitable lifting
device and with assistance, position the
muffler next to the frame-mounted
stanchion, at the back of the cab.
93
Figure 93 — Supporting DPF Assembly
8. Align the slot in the muffler bottom with the
tab on the stanchion.
94
Figure 94 — Align Muffler with Tab
9. Perform the following steps to align the DPF
muffler into final position on the muffler
stanchion:
앫 Align the muffler inlet with the exhaust
elbow.
앫 Align the muffler upper supporting
bracket to the stanchion and install the
bolts loose.
앫 Loosely install the upper supporting
band clamp with attached bracket and
install bracket bolts into the stanchion.
앫 Loosely install the lower supporting
band clamp.
10. With all components aligned, install and
secure the lower V-band clamp at the inlet
side of the muffler.
11. Install the heat shield onto the DPF muffler.
12. Secure all fasteners and clamps that
connect the DPF muffler to the stanchion.
Tighten all clamps and muffler fasteners
according to specification.
13. Disconnect the lifting device and remove the
lifting chain from the muffler.
14. Reconnect the harness connectors for all
temperature and pressure differential
sensors on the DPF muffler.
15. Locate torque specifications for the V-band
clamp screws, lines and sensors in the
SPECIFICATIONS section of this manual.
16. Using Premium Tech Tool (PTT), ensure all
soot trigger levels are reset back to zero.
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