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 7.3.1
Pumping fuel with the manual fuel pump, page 34).
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