Bukh DV36/48, Workshop Manual

Page: 72 / 196

009W2329.XLS
H12
The fuel valves are mounted in the cylinder head and are
secured here with tightening bars which are loosened when
dismounting the fuel valves.
Disassemble the fuel valves after the sketch beside and so
the nozzle can be exchanged and the pressure can be
adjusted at the washers (541).
Adjust the fuel valves by means of a pressure test apparatus
at 184 Kp/cm²
*)
opening pressure.
When using Bosch pressure testapparatus for nozzles you
are referred to Bosch infor-mation WPP 320/2 DK (500.8.76)
and this states test procedure and measures in detail.
The nozzle (548) is a Bosch nozzle DLLA 150P 34 combined
with a nozzle holder KBEL 78P 10/13 and this combination
makes the fuel valve (Item no. 610B9120)
*)
.
The adjusting filling pieces for injection pressure are
obtainable from 1 mm to 1.975 mm thickness with 0.05 mm
from washer to washer.
When exchanging the nozzle the new nozzle has to be
cleaned in petrol as it has been prepared with a protective
oil. Both nozzle needle and nozzle housing should be
carefully cleaned.
When assembling the fuel valve tighten with 6 – 8 Kpm.
*)
According to Service information SI0601 the fuel valve has
been changed from 610B9120 (opening pressure 184 Bar)
to 610B9250 (opening pressure 230 Bar) from engine no.
8395 and again changed according to SI1102 from
610B9250 (opening pressure 230 Bar) to 610B9220
(opening pressure 210 Bar) from engine no. 8845.