Technical Data: TD/TAD520, TAD530/531/532
51
Group 20
Injectors
Opening pressure:
TD520GE, TAD530-532GE: ............................... 25 MPa
(3600 psi)
TAD520GE/TD520VE/TAD520VE: .................... 27.5 MPa
(4000 psi)
Max pressure ........................................................ 120 MPa
(17400 psi)
Check leakage (for 10 min):
TD520GE, TAD530-532GE: ............................... 23 MPa
(3340 psi)
TAD520GE/TD520VE/TAD520VE: .................... 25.5 MPa
(3700 psi)
Numbers/bore Ø:
TD520GE, TAD530-532GE ................................ 5 x 0.234 mm
(0.00921")
TAD520GE/TD520VE/TAD520VE: ..................... 5 x 0.25 mm
(0.00984")
Fuel filter
Filtering size ......................................................... 0.005 mm
(0.0002")
Pre-filter
Filtering size ......................................................... 0.006 mm
(0.00024")
Commencement of delivery (FB)
The engine is equipped with a separate injection pump for each cylinder. 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 importance has been replaced, see chapter ”
EP code
”.
For renovation or when any parts of vital importance have been replaced, 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 indicated 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”.
Table 1 (Commencement of delivery)
All measurements are in mm (1 mm = 0.0394")
FB
(Commencement of
delivery)
Camshaft
types
Vh
Pre-stroke
Vh
corr.factor
Pre-stroke
correction factor
Lo
Basic dimension
Injection pump
Содержание TAD420VE
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