Lombardini LDW 502, Service Manual

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service manual
mod. 051135
8
1
A
2
3
4
5
7
6
9
8
10
9
11
12
13
14
15
B
G
Exploded diagram of the injector pump
The figure shows the injector pump parts.
8.14.1 Pumping element replacement
1 - Press down hard on the pump collar to fit
the pin (A).
2 - Disassemble the lock ring (1).
3 - Press down hard on the pump collar to
remove the pin (A).
4 - Remove the parts (2-3-4-5).
5 - Loosen the screws (6).
6 - Disassemble the support (7) and the lever
(8).
7 - Insert tool “7107-1460-029” and
disassemble the ring nut (9).
Important
Rotate in an alternating way the ring nut
during disassembling to avoid damaging
the O-ring (10).
8 - Extract the barrel (11), the valve (12) as
well as the parts (13-14-15).
8.14 REPLACING INJECTOR PUMP PARTS
Caption
1) Tension washer
2) Tappet
3) Stop collar
4) Plunger
5) Spring
6) Screw
7) Support
8) Lever
9) Ring nut
10) O-ring
11) Barrel
12) Delivery valve
13) Gland
14) Spring
15) Filler
16) Pin
17) O-ring
18) Non-return valve
19) O-ring
20) Metal gland
(new type)
21) Ring nut
23) Nozzle
24) Spacer
25) Preassure rod
26) Spring
27) Setting adjusting shim
28) Injector case
29) Control blade 30) Plunger guide
31) O-ring
32) Copper gland
delivery valve (12)
sealing surfaces
tool “7107-1460-029”
REPLACING PARTS