Maintenance 2-4L41C, 2-4M41(Z), 4L42C, 4M42
78
HATZ
Manual
Overview
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:
▪ Arrow for flow direction
▪ 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.
2-4L41C and 2-4M41
7 To simplify the starting procedure, it is recommended that you
pre-pump the fuel using the manual lever at the fuel feed pump
until you hear fuel flow back through the return line into the fuel
tank (see the chapter 7.3.1 Pumping fuel with the manual
lever, page 38).
8 Perform a leak tightness test by activating the manual lever.
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