Replacing Evap Components - GE Datex-Ohmeda Aisys Carestation Reference Manual

9.7.2 Replacing
eVap components
Cassette Interface board (
• Disconnect jumper cable (
• Remove retaining bracket (
• Remove mounting screws or nuts and washers (
When replacing boards with nuts, tighten the nuts
by hand, then torque to 0.6 Nm.
Do not overtighten!
• Be careful not to bend fingers.
Agent Delivery board ( )
B
• Remove cover if installed.
• Remove the cassette interface board retaining
bracket and jumper cable as above.
• Disconnect harnesses and ribbon cables.
• Remove mounting screws/standoffs (circled).
• Raise the rear edge of the board to free it from the
assembly.
Manifold Temperature Sensor board (
• The bottom of the board includes two thermistors
that contact a thermal transfer pad. When removing
the board, ensure that the pad remains with the manifold. If required, reposition the pad before replacing the board.
Cassette Temperature subassembly (
• Do not overtighten the mounting screws. Tighten
the screws until just snug.
Flow Control valve ( )
E
• Inspect o-rings; replace as necessary.
Inflow/Outflow zero valves (
• Inspect gasket; replace as necessary.
• Be sure gasket is fully seated in cavity before
installation.
Inflow/Outflow/Scavenging solenoid valves (
• Apply thin coat of silicone sealant
( to the threads of the
Refer to section 10.1.4)
mounting post ( ) after mounting the solenoid but
3
before securing the thumb nut (
with dome facing outward (toward nut). The raised
surface of the thumb nut should bear on the
washer.
M1046983 04/08
Do not remove any components on the eVap flowmeter subassembly that are fastened
with Torx head fasteners. The components are not serviceable items.
Most components can be replaced by disconnecting associated wiring, removing
mounting hardware and remounting the replacement component in place. Where
applicable, note the additional comments for specific components detailed below.
)
A
).
1
).
2
).
3
)
C
)
D
)
F
)
G
). Install washer ( )
4 5
1
3
2
F
G
(F)
(D)
9 Repair Procedures
(C)
(B)
(A)
(E)
F
G
G
3 4
(G) 5
9-13