31 8. Calibrating The High-Pressure Rail; Clamping The High-Pressure Pump; 34 8.2 Hydraulically Connecting The High-Pressure - Bosch CRS 845H Guide D'installation

8. Calibrating the high-pres-
sure rail
i
The pressure sensor 1 681 032 095 and the high-
pressure pump 1 687 222 188 are required for
calibration of the high-pressure rail.
8.1

Clamping the high-pressure pump

i
The following additional clamping parts are re-
quired for adaptation of the high-pressure pump
to the flywheel of the EPS: Intermediate flange
1 685 700 140, drive coupling 1 686 401 024,
protective cover 1 685 510 148, protective ring
1 685 510 176.
1. Mount intermediate flange 1 685 700 140 (Fig. 43,
item 4) and drive coupling 1 686 401 024 (Fig. 43,
item 3) to EPS flywheel.
2. Slide protective cover 1 685 510 148 (Fig. 43,
item 6) onto clamping bracket and fasten using
clamping screw onto EPS clamping bracket.
3. Slide protective ring 1 685 510 176 (Fig. 43, item 5)
all way up to protective cover (Fig. 43, item 6).
4. Slide high-pressure pump (Fig. 43, item 1) onto
clamping bracket and attach to drive coupling
(Fig. 43, item 3).
5. Fasten high-pressure pump using two clamping
screws (Fig. 43, item 2) to clamping bracket.
6
5
4
3
2
Fig. 43: Hydraulics terminal
Robert Bosch GmbH
Calibrating the high-pressure rail | CRS 845H | 47
6. Slide protective ring (Fig. 44, item 1) over drive cou-
pling and clamp tight.
1
Fig. 44: Preparing clamping device
8.2 Hydraulically connecting the high-
pressure pump
i
The high-pressure hose 1 680 712 324 for connecting
the high-pressure pump to the high-pressure rail is
part of the CRS 845H test set delivery specification.
!
Note tightening torque.
1. Connect the supply hose (Fig. 45, item 1) to the
high-pressure rail (Fig. 45, item 2).
2. Connect the return hose (Fig. 45, item 3) to the
1
high-pressure rail.
Fig. 45: Hydraulic connection
25 - 30 Nm
2
3
1
1 689 978 535
en
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2014-10-21