I. - ADJUSTING THE INJECTOR SETTING PRESSURE
Test fluid: Keep the equipment clean.
- Deodorized petroleum or Kerdanne or Dilutine. The parts should be lubricated before assembly.
- Viscosity: 1 to 2.5 centistoks at 2O’C.
- Density: 0.770 to 0.810 at 2O’C. - In the injector-carrier body (31, place:
- injector (4) and its nut (5),
Tighten to 6.5 mdaN
Precautions to be taken:
- push-rod (6),
- As the flash point of paraffin is low, it is essen-
- spring (7),
tial to ensure that all safety precautions are taken
before the test. - adjustment screw (2).
- Keep your hands away from the spray (use a - Adjust the pressure:
transparent protective screen).
The penetrating strength of these sprays is such
that they could create serious injuries and cause M 251660 M 251648 M 25/669
blood poisoning.
Pressure
112 t5 bars 127 t5 bars
setting
0 0
Checking the setting pressure: Injector RDNOSD RDNOSD RDNOSD
6577 B 6751 68-50 C
Actuate the pump lever slowly; record the pressure
value measured by the manometer on opening the Injector RKB45SD RKB45SD RKB45SD
Injector (calibration pressure). Write the value down. carrier 5422 5422 5422
The pressure setting is carried out using screw (2). Paint
Fig. I. mark orange white blue
Injector setting pressure adjustment screw (2)
is to be screwed in or out on the test bench
operated continually to keep the needle and its
If the pump lever is actuated with a brisk sharp action,
the injector should produce a very fine and homoge-
neous spray.
Checking the needle seat for leaks:
DISMANTLING Test should be carried out with the injector in a verti-
cal position.
To open an injector-carrier, place it in a vice equip- Wipe the end of the injector until dry.
ped with lead vice grips.
By actuating the pump lever, maintain a pressure
10 bars below the setting pressure.
The injector should not drip within 30 seconds,
Never tighten an injector-carrier alone in vice. Moistening should not be regarded as a reason for
rejection.
