Filling Diesel Exhaust Fluid (DEF) Tank - FT4/Stage IV Engines

RXA0131292-UN-19MAR13

RXA0133405-UN-28JUN13

RXA0143405-UN-10JUL14

A - DEF Level on Corner Post Display

B - DEF Tank Cap

C - Sight Gauge

CAUTION: DEF contains urea. Do not get the substance in eyes. In case of contact, immediately flush eyes with large amounts of water for a minimum of 15 minutes. Do not take internally. In event DEF is ingested, contact a physician immediately. Reference Materials Safety Data Sheet (MSDS) for additional information.

IMPORTANT: To determine tractor engine type, see Record Engine Serial Number in Identification Numbers Section of this Operator’s Manual.

IMPORTANT: Never put DEF in diesel fuel tank, or diesel fuel in DEF tank.

To avoid drastic changes in tractor performance, always keep DEF level above topmost red mark on cornerpost display (A). Monitor DEF level on cornerpost display and refill as necessary. It is suggested that DEF tank be refilled every time tractor is refueled. See SCR System in Operating the Engine section of this Operator’s Manual.

IMPORTANT: If DEF is spilled or contacts any surface other than the storage tank, immediately clean the surface with clear water. DEF is corrosive to painted and unpainted metallic surfaces and may distort some plastic and rubber components.

To fill DEF tank:

1. Before using containers, funnels, etc. to dispense DEF, wash and rinse items thoroughly with distilled water to remove contaminants.
2. Wipe DEF tank filler cap (B), area around cap and filler neck to reduce chance of contaminating DEF.
3. Lift DEF tank cap latch lever and turn 90° counterclockwise.
4. Lift cap from filler neck.

5. IMPORTANT: Avoid overfilling DEF tank.

   Completely filling DEF tank at lower temperatures can cause a blockage in filler neck. If expected temperatures are expected to reach below -11°C (12°F), do not fill DEF tank more than half way according to DEF level display on corner post (A). Observe temperature guidelines to assure ability to refill tank.

   Using funnel if necessary, carefully pour DEF into tank. While filling, watch DEF sight gauge (C). When DEF is at bottom of gauge, it will take one second to reach top of sight gauge with a high flow (30 L/min.) rate. Best final fill level is determined by ambient air temperature during upcoming tractor operating period:

   Ambient air temperature at or above -11°C (12°F): Completely fill tank.

   Ambient air temperature below -11°C (12°F): DO NOT over fill DEF tank. Keep fill tank level below the filler neck. Although main portion of DEF tank is heated to keep DEF from freezing, filler neck is not heated. Fluid in neck may freeze, preventing refill DEF tank until fluid melts.

6. Replace and securely latch DEF tank cap. The DEF tank cap can be locked with a padlock.
7. Carefully clean any spills, using distilled water only.

If an unapproved fluid, such as diesel fuel, or engine coolant is added to vehicle DEF tank, see Cleaning Diesel Exhaust Fluid (DEF) Tank in As Required Service section of this Operator’s Manual.