System Maintenance Overviews; Diesel Exhaust Fluid System; Filling Diesel Exhaust Fluid Tank - MacDon M2170NT Operator's Manual

6.5 System Maintenance Overviews

Proper system maintenance is essential for smooth machine operation.

6.5.1 Diesel Exhaust Fluid System

The diesel exhaust fluid (DEF) system injects DEF into the windrower's engine exhaust system. This fluid reacts with the
exhaust gases over a catalyst, thereby reducing the damage that the engine's emissions do to the environment. The
Operator may need to drain the DEF tank if the windrower will not be operated for a long period of time. The Operator will
also need to ensure that the filters in the DEF system are changed according to the intervals specified in the maintenance
schedule.
IMPORTANT:
If the windrower will be in storage for longer than 6 months, the diesel exhaust fluid (DEF) tank should be drained to
prevent damage to the tank. For instructions, refer to
IMPORTANT:
If the windrower will be operated when the ambient temperature is below 0°C (32°F), do NOT fill the DEF tank to more
than 75% of its capacity. When the ambient temperature is below freezing, DEF will expand in volume by
approximately 7%.
NOTE:
For DEF specifications, refer to this manual's inside back cover.

Filling Diesel Exhaust Fluid Tank

The symbol inside the diesel exhaust fluid (DEF) gauge on the HarvestTouch
is low.
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.
2. Clean around filler cap (A).
3. Turn cap (A) counterclockwise until it is loose. Remove
the cap.
NOTE:
The filler cap for the DEF tank is blue and the nozzle
dispenser is smaller than that of the fuel tank.
CAUTION
Avoid contact with eyes. In case of contact, rinse immediately
with water for 15 minutes.
262171
MAINTENANCE AND SERVICING
Draining Diesel Exhaust Fluid Tank, page
Figure 6.15: DEF Tank
293
294.
™
Display display will signal when DEF level
Revision A