Installing Supply Module Filter; Replacing Diesel Exhaust Fluid Tank Filter - MacDon M2170 Operator's Manual

1. Check the diesel exhaust filter for evidence of contaminated DEF. Use visual and aroma characteristics of the filter to
determine if contaminated fluid has passed through the dosing system.
2. Inspect the diesel exhaust filter for debris.
3. Discard the filter element and the equalizing element.
4. Inspect the aftertreatment DEF supply module filter cap for cracks or holes.
5. Check the condition of the threads on the aftertreatment DEF supply module cap.
6. If the threads are damaged, replace the aftertreatment DEF supply module cap.
7. If the cap threads are damaged, inspect the aftertreatment DEF supply module threads.
8. If the threads of the aftertreatment DEF supply module are damaged, replace the entire aftertreatment DEF supply
module.
9. Clean the aftertreatment DEF supply module cap and threads on the supply module with warm water and a
clean cloth.

Installing Supply Module Filter

Once the diesel exhaust fluid (DEF) supply module filter has been removed, cleaned, and inspected, the cleaned module (or
a new replacement) can be installed.
1. Slide DEF filter equalizing element (A) into DEF filter
cartridge (B).
2. Insert the assembly into aftertreatment DEF supply
module (C).
3. Install cap (D) and torque it to 20 Nm (177 lbf·in).
NOTE:
The aftertreatment DEF dosing system will not prime until
the correct selective catalytic reduction (SCR) catalyst
temperatures are reached. To verify that there are no DEF
leaks, test drive the windrower for a minimum of
15 minutes to get the SCR system up to temperature.
4. Operate the engine and check for leaks.

Replacing Diesel Exhaust Fluid Tank Filter

The diesel exhaust fluid (DEF) tank fluid filter housing is located inside the DEF tank attached to the DEF head suction line.
There is no scheduled replacement of the tank fluid filter as long as the tank remains clean. If contaminants enter the tank,
you may need to replace the fluid filter housing (MD #291162) which includes a 40 micron filter. If there is no obvious
contamination, change it every 2 years.
DANGER
To prevent bodily injury or death from the unexpected startup of the machine, always stop the engine and remove the
key from the ignition before leaving the operator's seat for any reason.
1. Shut down the engine, and remove the key from the ignition.
262170
MAINTENANCE AND SERVICING
Figure 5.137: DEF Supply Module Filter
441
C
B
A
D
Revision A