Operators Manual

NOTE: Viewing the fuel filter module from the top, the drain back port is
located at 10 o'clock.
5. Turn the water coalescer/final filter cap counterclockwise until the
drain back plug has located the drain back port. Apply light pressure to
the top of the water coalescer/final filter cap to seat the drain back plug into
the drain back port, hand tighten the filter cap by turning the cap clockwise.
6. Torque water coalescer/final filter cap to 55 to 60 N·m (41 to 44 lb·ft).
7. Once all required filters have been changed, prime the fuel system.
Refer to section "Priming the Fuel System - KM63 GEN2 - Two-Filter
System"
Refer to section "Priming the Fuel System - KM59 GEN1 - Two-Filter
System"
Removal of the Final Filter - Three-Filter System
Remove the final filter as follows:
NOTICE: Do not tilt the final filter when removing it from the housing.
Possible damage to the final filter or stand pipe may occur.
1. Using a 36-mm socket, unscrew the final filter cap.
2. Pull the cap and final filter straight up and allow the fuel to drain back.
3. Remove the final filter (2) from the final filter cap (1) by placing the filter
on a solid surface and apply pressure on the final filter cap at an angle.
DD Heavy Duty Platform Operators Manual
All information subject to change without notice. 163
DDC-SVC-MAN-0189 Copyright © 2022 DETROIT DIESEL CORPORATION