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3
3
4
6
5
7
Workshop Manual_3 - 4 LD_cod. ED0053025560_
4° ed
_ rev.
03
Disassembly / Reassembly
Flywheel
Clockwise unscrew nut
1
and remove the flywheel using
the puller
2
Part. no. 7271-3595-050 for 3LD 450, 3LD 451/S,
3LD510, 3LD510/S, while for 4LD 640, 4 LD 705, 4LD 820 use
puller with Part. no. 7271-3595-048.
Check that the starter ring gear, when it is present, and the co-
nic surface of the driving shaft coupling hole are intact.
While reassembling, tighten the screws 1 at 170 Nm for 3LD
450, 3LD 450/S, 3LD510, 3LD 510/s and at 350 Nm for 4LD
640, 4LD 705, 4LD 820.
Note:
The flywheels of the left-hand engines (3LD 451/S, 3LD
510/S) have a blading turned in the opposite direction and
the nut
1
shall be anticlockwise unscrewed.
Vent plug
Components:
1
Vent plug and oil refiling
2
O-ring
3
Diaphragm
Starting pulley
In order to carry out any easier staring, it is necessary to place
the driving shaft at the TDC (Top dead center) and to assemble
the pulley with notch 1 moved back at ( 45°) according to the
rotation direction of the engine, as per picture 4 and 5 .
Tighten the screws at 35 Nm for 3LD 450, 3LD 450/S, 3LD510,
3LD 510/S, at 40 Nm for 4LD 640, 4LD 705, 4LD 820.
Содержание 3LD 450
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