BOOK CODE
1-5302-556
MODEL No.
50839
DATE OF ISSUE
01-94
REVIEW 02
DATE
30-11-2001
APPROVAL
TECO/ATL AUTHOR
20
69
66
67
68
70
VII
FUEL/INJECTION CIRCUIT
Standard feeding/injection circuit
Components:
1 Tank
2 Filter
3 Pump
4 Pipe
5 Injector
6 Injector waste pipe
Fuel filter inside the tank (standard)
Details:
1 Spring 6 Gasket
2 Disk 7 Cover
3 Ring 8 Ring
4 Cartridge 9 Bolt
5 Gasket
Cartridge features:
Filtering degree = 7 µm
Filtering surface = 390 cm
2
Feeding pump (by request)
Features: at 1500 rpm of the control eccentric, the minimum delivery
is 60 l/h, while the automatic adjustment pressure is 4 ÷ 5 m
column of water.
Feeding pump rod projection
Details:
1 Feeding pump 3 Rod
2 Base 4 Oil pump drive shaft eccentric
The check shall be carried out with the eccentric 4 at rest.
The projection A of rod 3 is 0.8 ÷ 1.2 mm; it shall be adjusted with
the following supplied gaskets having a thickness of 0.50; 0.80 and
1.0 mm.
Rod length = 65.4 mm for 3LD 450, 3LD 451/S, 3LD 510, 3LD 510/S
and 75.2 mm for 4LD 640, 4LD 705, 4LD 820.
Injection pump
Components:
1 Delivery fitting 11 Spring
2 O-ring 12 Pumping piston
3 Spring 13 Tappet case
4 Delivery valve 14 External roller
5 Gasket 15 Internal roller
6 Barrel 16 Pin
7 Pump case 17 Lock ring
8 Eccentric 18 Rack rod
9 Sector gear 19 Lock pin
10 Spring bearing cap 20 Collar
Tighten the pump at its base at 30 Nm.
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