Maintenance
3-4L43C, 3-4M43, 3-4M43Z
64
HATZ
Manual
Overview
Pos.
Designation
1
Fuel lines
2
Fuel prefilter
Procedure
Step
Activity
1
Place a suitable container under the filter to collect emerging
fuel.
2
Close the fuel feed line.
3
Pull the fuel lines (1) off of the fuel prefilter (2) on both sides.
4
Dispose of the old filter in accordance with local environmental
regulations.
5
Insert a new fuel prefilter.
Note the following:
▪ Direction of arrow for the flow-through direction depends on
position of the fuel tank: HIGH or LOW
▪ Installation position/flow-through direction should be as verti-
cal as possible
6
Open the fuel feed line.
7
Perform a test run. While doing this, check the filter and lines
for leak-tightness.
8
If you have difficulties starting the engine, bleed the injection
system with the aid of the manual fuel pump (see chapter
