Lombardini LDW 502, Service Manual

Page: 93 / 98

- 93 -
service manual
mod. 051135
8
B
A
21
23
24
25
26
27
21
8.14.2 Replacing nozzle-injector
Important
Replacement may be carried out with the
engine installed on the machine.
1 - Disassemble the injection pump (see
“Disassembling injection pumps”).
2 - Loosen the ring-nut (21).
3 - Extract the nozzle (23) and the parts (24-
25-26-27).
4 - Check that all components are intact and,
if necessary, replace them with original
spare parts.
5 - Reassemble the parts (27-26-25-24).
6 - Assemble a new nozzle (23).
7 - Tighten the ring nut (21) to a final torque of
70 Nm.
Important
Check the setting (see “Injector pump setting”) since
it could be necessary to replace the adjusting shim
(27) and the spring (26).
Important
Replacement may be carried out with the
engine installed on the machine.
1 - Switch off the engine and leave to cool.
2 - Disassemble the cooling fan belt drive (see
“Removing the cooling fan belt drive”).
3 - Remove the belt drive cover (see
“Disassembling timing belt casing”).
4 - Remove the support (A).
5 - Install the new support.
6 - Tighten the screws (B) to a torque of 20
Nm.
7 - Mount the belt drive cover (see “Assembling the belt
drive cover”).
8 - Replace the cooling fan belt drive (see “Installation of
the cooling fan belt drive”)
8.15 REPLACING THE COOLING FAN SUPPORT
8 - Repeat the same operation on the other injector.
9 - Assemble the injector pump (see “Injector pump
assembly”).
REPLACING PARTS