Maintenance
3-4L43C, 3-4M43, 3-4M43Z
52
HATZ
Manual
Symbol
Maintenance in-
terval
Maintenance activity/Check
Chapter
500h
Every 500 operat-
ing hours
Change the fuel
pre
filter.
8.2.9 Changing the fuel
prefilter, page 63
Maintain the dry air filter.
Change the filter cartridge.
8.2.10 Maintaining the
dry air filter, page 65
Check and set the tappet
clearance.
8.2.12 Checking and
setting the tappet clear-
ance, page 69
Change the engine oil (3-4M43
and 3-4M43Z).
8.2.5 Change the en-
gine oil., page 55
Change the oil filter.
8.2.13 Changing the oil
filter, page 72
Check the fuel evaporator (va-
porizer).
8.2.17 Check the fuel
evaporator (vaporizer)
and clean if necessary.,
page 81
Check the exhaust gas back
pressure sensor.
8.2.18 Checking the ex-
haust gas back pres-
sure sensor, page 85
Reset the maintenance inter-
val indicator.
8.2.19 Resetting the
maintenance interval
indicator, page 86
Every 1000 oper-
ating hours
Change the main fuel filter
8.2.14 Change the
main fuel filter, page
73
Reset the maintenance inter-
val indicator.
8.2.19 Resetting the
maintenance interval
indicator, page 86
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Every 2000 oper-
ating hours
Renew the gaskets in the belt
tensioner or the complete belt
tensioner. (To be carried out
by a trained specialist).
Renew the poly v belt.
8.2.15 Renewing the
poly v belt and check-
ing the function of the
switch-off unit, page
76
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Every 3000 oper-
ating hours
Clean the EGR valve, EGR
housing, and intake area.
(To be carried out by a trained
specialist).
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