Operation Manual

Table Of Contents
Job Card No.:
Engine:
Filing No.:
Injector (Uncooled)
Inspection / Testing
0178-19-10 1928
As test fuel, use only clean diesel fuel.
Job:
Keep your hands from the fuel jet!
When it penetrates the skin tissue, blood poi-
soning may be the result.
Clean exterior of injector removed.
Install injector in testing device, clamp down by
wing screws, and connect injection line to injec-
tor.
Operate hand lever vigorously several times.
Checking the Injection Spray Pressure
For setting the pressure observe pressure
gauge.
Force down hand lever slowly until the nozzle
opens.
Testpressure: 350 bars.
If the pressure reading at this moment deviates
from the specified pressure, correct pressure by
means of adjusting screw (10).
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S/BVM 628
Inspection / Testing
Apart from the intervals specified in the Mainte-
nance Schedule, injectors must be inspected and
tested whenever they fail to work properly.
Changes in normal exhaust colour and exhaust gas
temperatures indicate that injectors are not in good
working order, which may to be due to blocked
nozzle holes, binding nozzle needle or leaky needle
seat.
Following removal (or overhaul) of injectors, check
these for correct spray pressure, tightness, and
spray pattern.
Tools:
- Standard tools
- Injector testing device (Section 1.8)
Job Cards:
- 01.05.04
- 07.07.01
- 07.09.01
Aid:
- Blotting paper
- Lubricating compound Deutz F5
(Section 3.6)
Detergents:
- O-seals
- Gasket
Fig. 1 Injector testing device
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