Operation Manual

Job Card No.:
Engine:
Filing No.:
Injector (Uncooled)
Reconditioning
0178-19-10 1927
Job
Removing the Nozzle
Remove injector as per Job Card 07.07.01. Release clamping nut (18) - Fig. 1 -, thus separating adapter (19)
from housing (4). Remove gasket (17). Release sleeve (11) and turn out adjusting screw (10) by a few turns until
spring (9) is unloaded. Clamp housing (4) at its flats in a vice. Using wire brush, carefully remove combustion
residue from the surface of the nozzle element (15), avoiding damage to the nozzle bores.
Remove washer (19) - if not lying in the cylinder head. Then lay or suspend the injector in diesel fuel to soak
for 24 hours in order to soften the layer of carbon deposit between nozzle nut (7) and nozzle element (24). Do
not stand on end, otherwise the nozzle tip may be damaged. When releasing nozzle nut (7), nozzle element
(24) must be consistently contacting the flat surface of housing (4), otherwise dowel pin (6) and possibly the
bore in nozzle element (24) are liable to be damaged. For this purpose, place a cleaning rag over the nozzle,
and press the nozzle with the hand against the housing (4). When released, remove stop bush (5) and needle
(16). Clean all components in diesel fuel. Renew and damaged components.
To prevent corrosion, be sure to keep your fingers away from the lapped faces of housing (4), nozzle
element (15) and needle (16), once cleaning is finished.
© 0585
07.09.01 Page 1 of 2
S/BVM 628
Fig. 1
Reconditioning
When injectors are due for reconditioning according
to the Maintenance Schedule, renew nozzles.
Job Cards:
- 07.07.01
- 07.08.01
Tools:
- Standard tools
- Deutz S1 compound (Section 3.6)
- Deutz S2 compound (Section 3.6)
Exercise utmost cleanliness when recondi-
tioning an injector. Use no metallic tools for
cleaning, apart from wire brushes.
© 25 453 1