Bosch CRI 848H - Clamping Commercial Vehicle Injector (Internal Connections)

1 689 989 087 2018-07-24| Robert Bosch GmbH
Preparing for testing | CRI/CRIN 848H | 87
en
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Fig. 77: Securing injection chamber
5.4.4 Connecting high pressure hose
Replace the high-pressure hose imme-
diately if the union, the sealing cone or
the sheath of the high-pressure hose is
damaged.
1. Check that the thrust ring (Fig. 78, item 1) is secure-
ly tightened (left-hand thread).
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1 687 712 ...
M=25 - 30 Nm
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FD: 2010-09FD: 2010-09
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Fig. 78: High-pressure hose
2. Remove the union nut (Fig. 79, item 1) and sealing
cone (Fig.79, item 2) from the high-pressure outlets
of the distributor rail.
3. Connect the high-pressure hose to the high-pressure
outlet of the distributor rail (refer to Fig. 79). Tight-
ening torque: 25 – 30 Nm.
4. Connect the other end of the high-pressure hose
to the connection piece for the high-pressure hose
(Fig.79, item1). Tightening torque: 25 – 30 Nm.
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Fig. 79: High-pressure connection with two injectors
! The high-pressure hose must not lie against the
protective hood of the EPS 708 when it is closed.
You can reduce the height of the high-pressure hose
by turning the connection piece (Fig.80). Make sure
that the bending radius of the high-pressure hose is
no less than 200 mm.