3 Immerse nozzle needle and nozzle body in
clean diesel oil and check slide ability by
means of drop test.
DROP TEST
Keep nozzle body vertical, pull out the needle
to one- third of its length. It must drop back
on its seat by its own weight slowly. If the
needle does not slide in body, smear a little
mutton allow on it and lap the needle in
nozzle body. Do lapping in back and forth
and rotary movement of needle in nozzle
body. While doing so, the nozzle needle seat
should not touch the seat in nozzle body.
Wash in diesel and recheck by drop test.
4. Assemble nozzle in the sequence as shown
into the nozzle holder taking care to match
the locating pins on intermediate disc and
screw on pressure screw. Fig. 25
5. Place nozzle holder into holder 403 589 00
31 00.
6. Tighten pressure nut with special wrench 000
589 01 13 00 to specified torque. Fig. 26.
Mark injection pump by the letter “Z” behind the
pump designation after the work has been carried
out.
Fig. 26
Fig. 25
Fig. 27
Workshop Manual
S3.8 Engine
A030K288 (Issue 2)
01-2010
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