Bosch CRI 846H Originalbetriebsanleitung Seite 52

en 52 | CRI 846 H | Preparing for testing
5. Preparing for testing
5.1 Cleaning instructions for injectors
Prior to clamping, clean injectors as described below.
!
Do not clean the nozzle cone with a brass brush,
steel brush or the like as this would damage the
injection orifices. Do not clean injection orifices with
the nozzle cleaning tool 0 986 611 140. Do not clean
the electrical connection of the injector with cold
cleaning agent.
1. Seal the inlet connection, return connection and
nozzle cone of the injector with protective caps or
cover over.
2. Use a plastic brush to remove any coarse dirt on the
injector.
3. Pre-clean the injector with cold cleaning agent.
!
Use the cleaning agent Tickopur TR 13 or a compa-
rable corrosion and coke-dissolving cleaning agent
for ultrasonic cleaning.
4. Remove the protective cap from the nozzle cone.
5. Attach the injector to a suitable holder and immerse
it in the ultrasonic bath until the nozzle retaining nut
is completely covered by the cleaning agent.
6. Set a cleaning temperature of 60 °C to 70 °C.
7. After approx. 15 minutes, take the injector/nozzle
holder out of the ultrasonic bath and blow dry with
compressed air.
i
After cleaning, always store injectors in a clean,
closed container to prevent the injectors coming
into contact with dirt particles (e.g. fluff, swarf).
i
Also heed the additional cleaning information in the
ESI[tronic] component repair instructions.
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5.2 Clamping injector
Warning: Risk of burns
Risk of hand burns from hot test pressure
lines and hot surfaces at the distributor rail.
¶
Allow the test pressure lines and distribu-
tor rail to cool down.
¶
Wear protective gloves.
!
Never clamp injectors for testing if damaged or
severely corroded.
i
Injectors must always be cleaned before clamping
for testing (refer to Section 5.1).
!
Note tightening torques.
!
Always clamp injectors using a clamping sleeve
(Fig. 30, Item 5) into the sensor (Fig. 30, Item 7).
1. If necessary, remove plug on high-pressure outlet.
2. Select suitable clamping sleeve (Fig. 30, Item 5) and
insert into bore (Fig. 30, Item 7) of locating position.
3. Insert injector (Fig. 30, Item 6) into locating posi-
tion.
Robert Bosch GmbH