Installing Injector - MTU 12 V 4000 T94 Operating Instructions Manual

2. Unscrew union nuts (2,5) and remove HP
line (3) from rail (4) and cylinder head.
Note: The injector accumulator will be emptied
when removing the adapter.
3. Remove adapter (1).
4. Remove screw (1).
5. Install installation/removal device on cylin‐
der head.
6. Remove injector (2) and hold-down
clamp (6) with installation/removal device.
7. Remove installation/removal device.
8. Remove sealing ring (5) from injector, or
withdraw from cylinder head.
9. Remove O-rings (3) and damper ring (4)
from injector.
10. Clean all mating and sealing surfaces.
11. If carbon residue is present: Clean sealing
face on cylinder head and protective sleeve
with milling cutter.
12. Cover all connections and bores, or seal
with suitable plugs.

Installing injector

1. Remove plug before installing the injec‐
tor. (Do not remove the plug from the HP
line before installing the adapter.)
2. Coat injector with assembly paste at the
seat of the nozzle clamping nut.
3. The new sealing ring (arrow) is supplied
with the injector.
122 | Task Description | MS150096/01E 2012-08