Kenworth t800, Owner'S Manual

Page: 66 / 276

08/12
4-4
Section 4
Exhaust & Aftertreatment
mEasurEmEnt rEfErEncE PoInts
For the all relocation procedures, the measurement points will referenced in the guidelines are taken from the following
specific points:
Supply Module: The supply module is commonly called a pump. The measurement point on the supply module is the top
of the DEF fluid pressure line. See Figure 4-1.
fIGurE 4-1:
Measurement Location of DEF Supply Module (Pump)
Dosing Module: The dosing module is commonly called an injector, this injector is located on the SCR mixing pipe which
is between the DPF and SCR canister. The measurement point on the dosing module is the top of the DEF fluid pressure
line. See Figure 4-2.
fIGurE 4-2:
Measurement Location of DEF Dosing Module (Injector)
The following relocation guidelines are dependant on exhaust configuration and DEF tank type and location.
The Dosing Module should not ever need to be relocated, however if it is removed for any reason, it is critical that the
module be reinstalled at the correct orientation. Figure 4-3 below illustrates the correct installation orientations. The angle
references the vertical plane.