D1146/D1146TI/DE08TIS
MAINTENANCE MANUAL
106
Printed in Jan. 2001 PS-MMA0415-E1A
4.3. Fuel Injection Pump
4.3.1. General information of fuel system
The fuel system consists of the fuel tank, injection pump, injection nozzle, fuel filter,
and fuel lines such as pipes and hoses necessary to connect those components.
1. Fuel filter 7. Fuel injection pipe
1a
Water separater
8.
Fuel pipe (manual pump → filter)
2. Air bleeding screw (for fuel filter) 9. Fuel tank
3. Injection nozzle 10. Fuel return pipe
4. Overflow tube 11. Suction pipe
5.
Fuel pipe (filter → injection pump)
12.
Feed pump
6. Overflow valve 13. Injection pump
4.3.2. Injection pump
The components relating to the injection pump should be serviced at regular
intervals as the plunger and delivery valve may be worn after a given length of time
for use and cause the deterioration of the engine.
Make sure that servicing should be performed at the professional maintenance shop
as authorized by Bosch or Zexel Company.
For adjustment of fuel injection volume, refer to the 'Specifications of fuel injection
pump' described on the following pages.
2
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