Bosch EPS 205 - 5.4.4 CRIN test procedure

1 689 989 185 2018-03-24| Robert Bosch GmbH
60 | EPS 205 | Operationen
5.4.4 CRIN test procedure
! Do not check any damaged and/or severely corroded
components.
458881-282_Ko
Fig. 40: Block diagram of CRIN connection
1 Test connection for return quantity and adapter with check valve
2 Test connection for injected fuel quantity with inlet filter
3 CRIN socket
4 CRIN return
5 Injection chamber
6 Connection adapter
7 Test adapter
8 High-pressure hose
i The prerequisites to be observed when checking and
adjusting CRIN can be found in the test instructions
for CRIN 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 205.
Procedure:
1. Clean the CRIN (see Sec. 5.3).
i Perform the "leak test" before fitting the injection
chamber (Fig. 40, item 5) on the component.
2. Connect the test adapter to the CRIN (Fig.40,
item7) (for further information seeSec.3.6.10).
3. Attach the CRIN to the clamp (Fig.3, item 3).
! To avoid twisting and premature wear, do not
connect the high-pressure hose directly to the CRIN.
4. Connect the high-pressure hose with the connection
adapter (Fig. 40, item6, 8) to the CRIN.
! The connection adapter must be tightened to
a torque of between 25Nm and 30Nm. If the
connection between the connection adapter and
the CRIN is leaking, the screw connection is not to
be re-tightened. In the event of a leak, unfasten the
connection again, clean the sealing surface and re-
connect the connection adapter applying the correct
tightening torque.
5. With Bosch CRINs, plug the adapter with check
valve into the "test connection for return quantity"
(fig. 40, item 1).
! With third-party CRINs, do not use the adapter with
check valve.
6. Connect the hose assembly 1680712360 to the
return of the Bosch CRIN (fig. 40, item 4) and the
adapter with check valve or, with a third-party CRIN,
to the "test connection for return quantity" (fig. 40,
item 1) of the EPS 205.
7. Connect the adapter cable (1684465843) to the
CRIN and to the "Socket" (Fig.40, item3).
! Route the adapter cable such that it does not come
into contact with the hot hoses.
8. Insert the inlet filter in the "Test connection for
injected fuel quantity" (Fig.40, item2).
9. Close the guard.
10. Perform the test.
i After the "leak test", fit the injection chamber on the
component and connect the hose 1 680 712 362 to
the quick-release coupling of the injection chamber
(fig. 40, item 5) and via the inlet filter to the "Test
connection for injected fuel quantity" (Fig. 40,
item2).
i CRIN testing is described in the Online Help.