Welch Allyn Propaq Encore, Service Manual

Page: 85 / 130

Service Manual Repair Procedures 81
Replacing the Expansion Module Front Panel
The front panel contains the printer buttons. Like the rear panel, the front is sealed to the
chassis with a rubber O-ring gasket. This gasket can be re-used when replacing the front
panel.
The expansion module front panel is attached to the chassis with four screws. Use the
following procedure to remove the front panel:
1. Remove the four screws (as shown below) holding the front panel.
2. For expansion module options with sidestream CO
2
(226, 227, 228, or 229),
disconnect the cables from J1 and J3 on the SSP board.
3. Separate the front panel from the chassis, disconnecting the front panel cable from
the expansion module button board.
A rubber O-ring gasket seals the front panel to the chassis. This gasket should be
saved for re-installing on the front panel.
When installing the expansion module front panel:
• Verify the O-ring gasket is in place and not pinched.
• Torque screws to 6.65in-lbs to 7.35in-lbs (.75N-m to .83N-m)
Note To replace the sidestream CO2 assemblies, see “Replacing the Sidestream CO2
Assemblies” on page 88.
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