Service manual

Service Manual 65
675-120 Revision D May 2005
Removal and Fitting of Fuel Cell Filter/Restrictor
Refer to Figure 15.
Removal
1 Remove the case .
2 Remove the oxygen filter screw (1) from the flow mixer block (2). Remove the
filter/restrictor (3). Remove and discard the O-ring (4) and the O-ring (5) from
the oxygen filter screw (1).
Fitting
1 Install a new O-ring (5) on the oxygen filter screw (1). Install a new O-ring (4)
and the filter/ restrictor (3) into the flow mixer block (2). Install the oxygen filter
screw (1) and tighten.
2 Refit the Case.
3 Carry out an Oxygen Leak check (see Appendix A - Oxygen Leak Test) and
functional check of the IFSD and calibrate the fuel cell.
Figure 15 - Oxygen Filter Restrictor Removal/Fitting