2-4L41C, 2-4M41(Z), 4L42C, 4M42 Maintenance
HATZ
89Manual
Step Activity
1 On encapsulated engines:
▪ Lift off the capsule hood
(see the chapter 5 Engine design, page 27).
On engines without a capsule:
▪ Remove the side trim panel
(see the chapter 5 Engine design, page 27).
2 Place a suitable container under the filter to collect emerging
fuel.
3 Close the fuel feed line.
4 Slide on the strap wrench (1) and unscrew the fuel filter counter-
clockwise.
5 Dispose of the old filter in accordance with local environmental
regulations.
6 Lightly oil the gasket of the new fuel filter.
7 Mount the fuel filter and tighten it by hand.
8 Open the fuel feed line.
9 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).
10 Perform a leak tightness test by activating the manual lever.
11 After completion, insert the access cover to the fuel feed pump
back in the side wall.
12 Mount the capsule and air guide parts again.