Maintenance 3-4L43C, 3-4M43, 3-4M43Z
86
HATZ
Manual
Procedure
Step Activity
1 Disconnect the signal line (1) from the exhaust gas back pres-
sure sensor (2) by loosening the connector fastener.
2 Unscrew the line connection (3) and remove the exhaust gas
back pressure sensor.
3 Check the bore hole for the exhaust gas back pressure sensor.
When the bore hole is blocked with soot, the exhaust gas back
pressure sensor must be replaced.
4 Refit the exhaust gas back pressure sensor and reconnect the
signal line.
8.2.19 Resetting the maintenance interval indicator
After completion of maintenance work reset the maintenance interval indica-
tor. The counter starts again at zero and indicates when the next service is
due.
Overview — HATZ instrument boxes
1 Starting key
2 Pushbutton
Ignition lock
0 Off
I Operation
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