Check catches
Caution
● Carefully pull fuel return lines upwards vertically when
disconnecting, as the 4 catches -arrow- can fracture.
● After disconnecting, check the 4 catches -arrow- to see
whether they are fractured or have broken off.
● Always replace damaged fuel return lines.
● A damaged fuel return line that becomes loose when en-
gine is running causes damage to injection valve (piezo
injector). The injection valve (piezo injector) must then
be replaced.
Attach fuel return line
– Apply a thin coat of diesel fuel to new O-rings on return-line
connections.
– Attach fuel return line and press the two clips downwards as
far as they will go -arrows-.
Lock fuel return line
– After fuel return line has been pushed on completely, press
locking pin downwards -arrow-.
3
Industriemotoren - Industrial Engines 2009
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Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
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Repair Group 15 - Cylinder head, valve gear