Man D 2842 LE 620, Repair Manual

Page: 27 / 180

5
7
8
9
Check the base fitting of the high − pressure pump
25
Fig. 5
The indicator (arrow) must then be aligned so that
its measuring edge points exactly to the “TDC”
mark on the scale disc.
Turn engine to ignition TDC 1.
Fig. 6
Pull the connector off the rpm sensor
Á
.
Unscrew the mounting bolt
À
of the rpm sensor
Á
and pull out the rpm sensor.
No marking may be visible.
Fig. 7
If the engine is now turned back to 69
° before
TDC, 2 markings
À
must be visible.
If both markings are visible, then fit the rpm sensor
and tighten the mounting bolt with
9 Nm .
Reconnect the control unit.
Fig. 9
Caution:
If only 1 marking is visible, the high − pres-
sure pump has been fitted and twisted by
180
° towards ignition TDC engine cylin-
der 1.
In this case, the high-pressure pump has to be re-
moved.
2
1
1
1