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
C
8
9
29
9 - Check the good seal of the delivery valve
(12) as well as of the pumping element
(parts 4-11). If necessary, replace them
with original spare parts.
10 - Assemble all parts (15-14-13).
11 - Assemble the delivery valve (12).
Important
The needle (B) and the valve seat (C) must
be assembled as shown in the figure.
12 - Assemble the barrel (11) and tighten the
ring nut (9) provided with a new O-ring
(10).
Important
Rotate in an alternating way the ring nut
during assembling to avoid damaging the
O-ring (10).
13 - Assemble in sequence all parts (5-4-3-
2) on the support (7).
14 - Press down part (2) to fit the pin (A).
15 - Reassemble the stop ring (1).
16 - Rotate the plunger (4) by means of the
control blade (29) as shown in the figure.
17 - Insert the lever (8) and engage it in the
plunger (4).
Caution - Warning
Check that the position of both lever (8)
and plunger control blade (29) is the same
as that shown in the figure.
If the control blade is positioned in a
different way, the engine may not run.
18 - Tighten the screws (6) to join the support
to the injector pump case .
19 - Press down hard on the pump collar to
remove the pin (A).
delivery valve (12)
sealing surfaces
tool 7107-1460-029
REPLACING PARTS