Hatz 2-4L41C - Checking that the Air Filter Maintenance Indicator Is Working Properly

2-4L41C, 2-4M41(Z), 4L42C, 4M42 Maintenance
HATZ
91Manual
Procedure 4L42 C and 4M42
Step Activity
1 Slide on the strap wrench (1) and unscrew the fuel filter counter-
clockwise.
2 Dispose of the old filter in accordance with local environmental
regulations.
3 Lightly oil the gasket (2) of the new fuel filter.
4 Mount the fuel filter and tighten it by hand.
5 Open the fuel feed line.
6 Bleed the injection system with the aid of the manual fuel pump
(see the chapter 7.3.2 Pumping fuel with the manual fuel pump,
page 39).
7 After a brief trial run, check the fuel filter for leak tightness and
retighten by hand.
8.2.16 Checking that the air filter maintenance indicator is working properly
Overview
Electrical
air filter maintenance display
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Mechanical
air filter maintenance display