797F Off-Highway Truck Caterpillar


Diesel Exhaust Fluid - Fill

Usage:

797F LTZ


NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Dispose of all fluids according to local regulations and mandates.


Reference: See Operation and Maintenance Manual, "Capacities (Refill)" for the capacity of the tank for your machine.

Diesel Exhaust Fluid (DEF) Tank Filler Cap



Illustration 1g06069012

  1. Clean DEF tank filler cap (1) and the surrounding area.

  2. Remove the DEF tank filler cap (1).

  3. Fill the tank with diesel exhaust fluid (DEF).

    Note: Do not fill the DEF tank from a contaminated container or funnel.

    Note: Do not over fill the tank. DEF can freeze and needs room for expansion.

  4. Install the DEF tank filler cap (1).

Diesel Exhaust Fluid (DEF) Fast Fill Adapter

  1. Remove dust cover and clean the fast fill DEF adapter (2).

  2. Fill tank with diesel exhaust fluid (DEF) through the fast fill DEF adapter (2).

    Note: Do not over fill the tank. DEF can freeze and needs room for expansion.

    Note: The maximum flow rate for the fast fill adapter group is 46 L/min (12.1 US gpm).

  3. Clean the fast fill DEF adapter (2) and dust cover. Install the dust cover on the adapter.

Refer to Operation and Maintenance Manual, "Lubricant Viscosities" for more information on diesel exhaust fluid (DEF) guidelines.

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