Perkins 4006D-E23TA Operation And Maintenance Manual page 37

M0088207 37
Operation Section
Fuel Related Components in Cold Weather
Note: Fuel heaters that are controlled by the water
temperature regulator or self-regulating fuel heaters
should be used with this engine. Fuel heaters that are
not controlled by the water temperature regulator can
heat the fuel in excess of 65° C (149° F). A loss of
engine power can occur if the fuel supply
temperature exceeds 37° C (100° F).
Note: Heat exchanger type fuel heaters should have
a bypass provision in order to prevent overheating of
the fuel in warm-weather operation.
For further information on fuel heaters, consult your
Perkins distributor .