1B20, 1B30, 1B40, 1B50 Maintenance
HATZ
81Manual
Model with double fuel filter system
NOTICE
▪ The advantage of this system is that dirt particles that may
enter the fuel line during a filter change are captured by the
downstream outside filter and are therefore unable to en-
danger the injection system.
▪ This outside filter is NOT permitted to be changed. Only
change the fuel filter in the tank.
Step Activity Figure
1 Do not change the mainte-
nance-free outside filter (1).
2 Open the fuel cap (2) and pull
the fuel filter (3) out of the tank
by the cord.
3 Pull the fuel feed line (4) off of
the fuel filter (5) and insert a
new filter.
4 Insert the fuel filter back into
the tank.