Lister Petter 0600123LPW3A01, Руководство по ремонту, Страница: 82 / 88

ALPHA series engines worksHoP mAnuAL
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9. dismAntLe And reBuiLd
9.1 dismAntLing An engine
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Maintenance must be performed by qualified
persons who are conversant with the hazards of
fuels, electricity and machinery. Read the Safety
Precautions and observe all instructions and
precautions in this publication.
CAution
These notes, based on an LPW engine, are of
a general nature and are included as an aide
memoire and in no way are they intended as
instructions.
9.1.1 Preliminary instructions
a. Disconnect or isolate any non-electric starting
systems.
b. Disconnect and remove the battery.
c. Drain the diesel fuel and lubricating oil.
d. Drain the water.
e. Disconnect all services.
f. Remove any accessories or components that
may be susceptible to damage when the engine is
turned out of its normal plane.
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These engines are fitted with hydraulic tappets
therefore it is important to follow the procedures
given.
1. Remove the radiator hoses.
2. Remove the radiator after disconnecting the top
and bottom mountings.
3. Remove the starter motor.
4. Slacken the alternator or jockey pulley.
5. Remove the radiator fan drive belt.
6. Remove the alternator or belt tensioner.
7. Remove the radiator fan (left hand thread).
8. Remove the inlet and exhaust manifolds.
9. Remove the fuel pump to injector pipes.
10. Remove the injectors; LPW have clamps,
LPWS are screwed in.
11. Remove the cylinder head covers.
12. Remove the lifting eye (s).
13. Remove the valve rockers and push rods.
14. Remove the water pump.
15. Remove the cylinder head and gasket.
16. Lift out the push rod tubes, rubber seals and
washers.
17. Remove the remaining fuel pipes and the fuel
filter.
18. Remove the radiator support bracket.
19. Remove the oil filter.
20. Remove the dipstick and crankcase door.
21. Remove the oil pressure relief valve and the oil
strainer.
22. Remove the connecting rod caps.
23. Carefully remove the carbon build-up from the
top of the cylinder bore.
24. Turn the crankshaft until the piston is at TDC.
25. Lift out the piston and connecting rod.
26. Fit the flywheel locking tool.
27. Remove the front pulley (left hand thread).
28. Move the engine control to the stop position.
29. Remove each fuel pump; take care to retain the
shim pack with each pump.
30. Remove the gear end cover.
31. Release the speeder spring from the governor
lever assembly.
32. Remove the governor lever assembly and the
governor rack.
33. Remove the governor sleeve.
34. Remove the governor weights.
35. Use a suitable magnet to remove the hydraulic
tappets and the fuel pump tappets.
36. Rotate the engine until the governor weight
slots in the camshaft are vertical
37. Remove the two camshaft thrust plate screws
and the control lever tension spring.
38. Carefully withdraw the camshaft.
39. Remove the oil pump.
40. Remove the crankshaft pinion.
41. Remove the flywheel.
42. Remove the flywheel housing.
43. Remove the flywheel end main bearing
housing.
44. Use a manifold bolt to remove the centre main
bearing locating dowel.
45. Gently withdraw the crankshaft.
46. Remove all the main and the camshaft bearing
shells.
9.2 reBuiLding An engine
Tables showing torque values and recommended
jointing compounds can be found in “5. Routine
Maintenance”
When assembling the engine, use normal engine
lubricating oil to spray all moving parts during
assembly. All bearing surfaces must be well
lubricated including the valve stems and the cups
of the push rods.
The pistons with rings and connecting rods
assembled, must be submerged in oil just before
fitting into the cylinder. After submersion drain