PRODUCT OVERVIEW
19
Mechanical fuel pump
The mechanical fuel pump is a diaphragm-type of pump and is installed on
the fuel injection pump body. The mechanical fuel pump is driven by a cam
on the camshaft of the fuel injection pump. An electric fuel pump is available
as an option. The mechanical fuel pump is not installed on the fuel injection
pump if the electric fuel pump option is installed.
Fuel priming lever
If the unit has a mechanical fuel pump, a fuel priming lever on the
mechanical fuel pump primes the fuel system. The fuel system needs to be
primed before you start the engine for the first time, if you run out of fuel, or
if fuel system service is performed. To prime the fuel system, operate the
fuel priming lever until the cup in the fuel filter is full of fuel.
Fuel filter
The fuel filter removes contaminants and sediments from the diesel fuel.
Periodic replacement of the fuel filter is necessary. See the Periodic
Maintenance Schedule on page 64 for the replacement frequency. Please
note that the word “diesel” is implied throughout this manual when the
word “fuel” is used.
Components
Functions
TNV_OperationManual_T4(under 19kW).book Page 19 Wednesday, June 17, 2015 11:23 AM
