Lombardini LDA 422, Руководство по ремонту

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72
REG. CODE
1-5302-596
MODEL N°
50881
DATE OF ISSUE
15-05-2003
REVISION
00
DATE
15-05-2003
ENDORSED
COMPILER TECO/ATI
286 287 288
289
290
IX
A
B
Injection pump and check static injection advance
Insert the tappet in its housing equipped with cap, position the shims and the injection pump making sure, before the
locking, that pin is correctly inserted into the control rod and reference dowel into its housing.
Then check injection advance tining as follows.
1) Connect delivery pipe “ C ” of the proper hand pump (for
inst. BOSCH Type) to the feed union of injection pump
and insert suction pipe into a container filtered and full of
gas oil and plug the hole of gas oil recovery “
D ” by means
of a threaded plug.
2) Rotate the engine so as A.I.D. (dynamic injection
advance) reference mark coincide on clutch cover
(compression stroke).
3) Operate hand pump and bleed the circuit by means of
plug on hole “ D ”, previously fitted. Then exert pressure on
the gas oil so as it comes out from injection union “ F ”.
4) Fit a transparent pipe “ H ” on union “ F ”. Operate again
the pump and at the some time rotate the engine towards
T.D.C. up the point where the climbing of gas oil in the
transparent hose doesn’t cease. Timing is correct if in
such a point reference mark the clutch is aligned to A.I.S
mark (static injection advance 11° before T.D.C.).
If the engine results are advanced or retarded replace the
shins below the injection pump (as spares to this aim two
packings of 0.2 mm and 0.3 mm are supplied) or fit more
packings according to need. Bear in mind that by
increasing 0.1 mm. the packing we obtain a retard of 1°
and by reducing 0.1 mm the packing we have 1° in
advance.
N.B. - In order to be certain of the correct timing of
injection advance repeat more times the test carried out
on the point 4.
DISASSEMBLY/REASSEMBLY