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8.14.2 Replacing nozzle-injector
Important
• Replacement may be carried out with the engine
installed on the machine.
1. Disassemble
the
"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).
8. Repeat the same operation on the other injector.
9. Assemble the injector pump (see "Injector pump
assembly").
8.15 REPLACING THE COOLING FAN SUPPORT
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")
Service Manual LDW FOCS 502 automotive _ cod. ED0053027270 - 3° ed_rev. 02
injection
pump
(see
REPLACING PARTS
21
23
24
25
26
27
163
B
164
21
A
8
95
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