Model with exhaust gas return valve – HATZ Diesel 4M42 User Manual
Page 46

Step
Activity
4
As soon as the engine is running, release the starting key.
▪ The starting key springs back to position "I" and remains in
this position during operation.
▪ The charge control (2) and oil pressure display (3) go out.
▪ The operating display (1) lights up.
NOTICE
i
▪ In case of irregularities, switch off the engine immediately.
▪ Identify the fault and eliminate it.
▪ For details of troubleshooting, see the chapter 9 Faults,
Model with exhaust gas return valve
The engines 4L42C and 4M42 are equipped with an exhaust gas return
valve (EGR). The indicators change as follows:
Pos.
Designation
5
Indicator EGR
Blink codes
The indicator (5) only flashes during operation if a problem arises in connec-
tion with the exhaust gas return system. This includes a dirty air filter. This
can be identified by the following flash code of the indicator (5):
▪ 7 times short flash (approx. 0.5 seconds) and 1 long flash (approx. 1.5
seconds).
▪ The flash code indicates that the air filter must be cleaned or changed
(see the chapter 8.2.11 Checking and cleaning the air filter cartridge,
page 76).
▪ If a different flash code appears, please contact the nearest Hatz service.
Operation and use
2-4L41C, 2-4M41, 2-4M41Z, 4L42C, 4M42
46
Operator's Manual
HATZ