Service manual

Service Manual 61
675-120 Revision D May 2005
4 Numbers in parenthesis in the Removal/Fitting procedures are the item
numbers on the associated figure.
5 Lubricate new O-rings before installation with grease, Krytox 240AC before
installation.
Maintenance Frequencies
Table 7 shows the recommended frequencies for replacement of components.
Table 7 - Maintenance Frequencies
Component Replacement Frequency
Battery Annually
Oxygen Filter Annually
Fuel Cell Filter/Restrictor Annually
Fuel Cell Annually
Blender (Check Valves and Filter) Annually
Water Trap Filter Annually
Pilot Drive Check Valves Annually
Case Bleed Filtered Restrictor Annually
Blender Alarm and Bypass
Components (by replacement of
blender or Blender Overhaul Kit
Every Two Years
Solenoid Valve (by replacement of
Valve/Sensor PCB)
Every Five Years