Doosan DV11 - Injector and High Pressure Connector Assembly Procedure

DV11
Operation and Maintenance
102
Engine Reassembly
Printed in Mar. 2005 PS-MMA0608-E1A
3.3.16. Injector
z Clean all the parts thoroughly and
be careful not to fall into the foreign
material.
z Especially take deeper care on fuel
line from common rail up to injector
because this area has no filtering
function.
z Clean the holes which an injector
and a high pressure connector will
be put into before they are
assembled.
z Whenever disassembling the injector, fuel high pressure connector must be
replaced with a new one.
z If fuel goes in the combustion chamber during disassembling the injectors from
the fuel return line and/or gap around the injector and high pressure connector,
please remove the fuel by sucking with hand pump or short cranking with fuel
stop.
< Injector and high pressure connector assembly procedure >
1) The injector should be assembled correctly on the following procedure.
Fixing nut
Fuel high pressure
connecter
Injector
Fixing bracket
Injector bush
Fixing bolt
Lubricant positions
- O-ring
- Hold down shoulder
- Thread of fixing nut
Injector
Coat the engine oil on O-ring
(Be careful not to allow the
engine oil to go into the hole
for high pressure connector)
1,2
4
3 5
High pressure connector