Yaroslavl Engine Plant YMZ-536 Operation Manual page 92

1 – injector; 2 – side union; 3 – rail; 4 – high-pressure pipes;
5 – HP fuel pump pipe; 6 – HP fuel pump with a low-pressure pump;
7 – priming pump fuel feed pipe; 8 – HP fuel pump feed pipe; 9 – engine fuel
feed pipe; 10 – engine fuel drain pipe; 11 – filter fuel feed pipe;
12 – fine fuel filter; 13 - Electronic Control Unit (ECU)
The electronic engine control system ensures self-diagnostics
of the ECU, transmitters (sensors) and some other vehicle devices.
When any deviations in the engine operation are detected, the
malfunction indicator lamp in the driver's cabin turns on. In this case
apply to the service station to identify the cause of the trouble.
ATTENTION! THE FUEL SYSTEM HARDWARE IS NOT
SUBJECT TO MAINTENANCE. IN CASE OF ANY FAILURE RELATED
TO THE FUEL SYSTEM, APPLY TO THE SERVICE STATION.
92
Fig. 31 Fuel system: