Kohler KDI 1903 TCR

EN
34
2.9.2 Fuel return circuit
The fuel return circuit is under low pressure.
NOTE
: The representation of fuel tank is
purely indicative. Component not necessarily supplied
by
KOHLER
.
Tab 2.14
POS.
DESCRIPTION
1
Electronic injectors
2
Common Rail
3
Low-pressure fuel return tube from the
Common Rail to the fuel return distributor
4
Low-pressure fuel return tube from the
electronic injectors to the fuel return
distributor
5
Low-pressure fuel return distributor
6
Low-pressure fuel return tube from the
return distributor to the fuel tank
7
High-pressure fuel injection pump
8
Low-pressure fuel return tube from the
injection pump to the fuel return distributor
9
Fuel tank
Fig 2.5
2.9.3 High-pressure injection pump (2000 bar)
Important

DO NOT use the cylinder connecting pipe (item 5) to
carry the pump during movement as this may cause
damage resulting in fuel leakag; to handle the injection
pump, refer Par. 2.17.1.

The injection pump CANNOT be repaired.

DO NOT attempt to remove the temperature sensor 7
from the pump. Should the sensor 7 be defective,
replace the injection pump.

It is NOT possible to perform any maintenance on the
fuel intake regulating valve 6 as it is an integral part of
the injection pump.

DO NOT attempt to remove the fuel intake regulating
valve 6 from the injection pump. Should the valve be
defective, replace the injection pump.
NOTE:
In the event of leakage from the high pressure circuit do
not intervene when the engine is running, but turn it off and wait
5 - 10 minutes before checking the leakage.
Fig 2.6
Fig 2.7