A SERVICE OF

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W
EBASTO
S
CHOLASTIC
S
ERIES
5INSTALLATION
5-9
5.7.3 Fuel Filter
Your heater is equipped with a spin-on fuel filter. Fuel filters require changing at least annually and in cases of dirty
fuel more often.
The fuel filter assembly should be mounted securely between the vehicle frame rails close to the fuel tank. After
installation, before the heater is fired for the first time, the fuel filter MUST be filled with CLEAN diesel fuel. When
replacing the fuel filter, this procedure must be repeated to ensure proper firing and operation.
CAUTION
Check local and State codes and regulations for fuel filter mounting locations.
CAUTION
To prevent fuel nozzle failure, always use CLEAN fuel from a known CLEAN source for priming fuel systems and
filters.
NOTE
The Webasto Scholastic Series heater is equipped with an internal self-priming fuel pump.