SECTION 04: EXHAUST AND AFTERTREATMENT SYSTEM
DOB 2490-2789 | X3-45 Commuter PA1605 Maintenance Manual (Final Version – Rev.2 April 2016)
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FIGURE 9: AFTERTREATMENT FUEL INJECTOR
3.
Remove the aftertreatment hydrocarbon
injector mounting fasteners. Remove the
aftertreatment hydrocarbon injector from the
diffuser pipe (which attaches to the
turbocharger outlet).
4. Clean the sealing surface on the diffuser pipe
before mounting the aftertreatment
hydrocarbon injector.
5. Install the aftertreatment hydrocarbon injector
onto the diffuser pipe (which attaches to the
turbocharger outlet). Tighten the fasteners to
125 lbf-in
.
NOTE
The fasteners already include pre-applied
high-temperature anti-seize compound.
6. Connect the line to the aftertreatment
hydrocarbon injector. Tighten the line fitting
to
135 lbf-in
.
FIGURE 10: FUEL LINE FITTING
7. Install the P-clamp and fastener to secure the
line to the mounting bracket on the diffuser
pipe.
8. Start the service regeneration process. When
fuel dosing starts, check for leaks starting on
the hot side of the engine. Clear any
diagnostic trouble codes, if needed.
NOTE
If fault tracing was performed using Guided
Diagnostics, return to Guided Diagnostics for
repair verification.
