Operation; Symbols And Connection Table For Cri/Crin, Cri Piezo And Dhk/Ui Tests; Cri Piezo Test Procedure - Bosch 1 687 010 400 Manual Original

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16 | 1 687 010 400 | Operation

4.4 Operation
WARNING – Risk of injury
If the hydraulic connection for the test
equipment and components has not been
made properly, test oil may escape under
high pressure or parts of the test equipment
may rupture during testing.
This can cause injury or material damage.
¶
Prior to switch-on, check that all hoses
have been properly connected to the
EPS 200 / EPS 205 and the component.
¶
Replace any leaking and defective hoses.
WARNING – Risk of hand injuries
Uncontrolled closing of the guard could lead
to crushing or injury of the fingers.
¶
Always close the guard by way of the
handle.
WARNING – Risk of burns from hot surfaces
Contact with hot components and the hot
test equipment (e.g. injection chamber) may
cause severe burns.
¶
Allow the components and test equipment
to cool down.
¶
Wear protective gloves.
4.4.1 Symbols and connection table for CRI/CRIN,
CRI Piezo and DHK/UI tests
Compo- Return Return
nent quantity quantity
flushing test
connection connection
CRI/ Not
CRIN required
CRI
Piezo
DHK/UI Not
required
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1 689 989 197 2014-04-01
Injected Connecting
fuel cable X20
quantity
test
connection
Yes
Not required
4.4.2

CRI Piezo test procedure

DANGER – Risk of fatal injury from electro-
magnetic fields
The high voltages at the CRI Piezo (charging
of the actuators) and at the adapter cables
are a source of potential fatal injury for per-
sons wearing pace-makers.
¶
Anyone wearing a pace-maker is not
allowed to perform "Common Rail Injector
(CRI Piezo)" testing.
!
Do not check any damaged and/or severely corroded
components.
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6
Fig. 5: Block diagram of CRI Piezo connection
1 CRI Piezo return inlet
2 CRI Piezo return outlet
3 Test connection for return quantity
4 Test connection for injected fuel quantity with inlet filter
5 CRI Piezo socket
6 Injection chamber
7 CRI Piezo
8 Connection adapter
9 High-pressure hose
i
The prerequisites to be observed when checking
and adjusting CRI Piezo can be found in the test
instructions for CRI Piezo in ESI[tronic] 2.0. These
test instructions do not form part of the scope of
delivery. ESI[tronic] 2.0 can not be installed on the
EPS 200 / 205.
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Robert Bosch GmbH