Technical data: TD/TAD420VE, TAD620VE, TAD650VE, TAD660VE
28
Group 20
Commencement of delivery (FB)
420/620
The engine is equipped with a separate injection pump for each cy-
linder. This means that the commencement of delivery (
FB
), when
necessary, has to be adjusted separate for each pump unit. The
commencement of delivery (
FB
) is adjusted with a shim, placed
between lifter and injection pump.
For exchange of injection pump without any parts of vital importan-
ce has been replaced, see chapter ”
EP code
”.
For renovation or when any parts of vital importance have been re-
placed, special tools (999 8685 and 999 8679) must be used, to be
able to calculate the thickness for the new shim.
The value for commencement of delivery and camshaft type is in-
dicated on the identification plate, see ”
General information”,
”Identification plate
”. When calculating the shim thickness, apply
a mathematical formula, see ”
Theoretical thickness for shim”,
where some values are from table 1 and other are measured on the
engine. For complete instruction, see
”Workshop Manual”.
FB
(Commencement of
delivery)
Camshaft
types
Vh
Pre-stroke
Vh
corr.factor
Pre-stroke
correction factor
Lo
Basic dimension
Injection pump
Table 1, Commencement of delivery
All measurements are in mm (1 mm = 0.0394")
Содержание TAD420VE
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