Howto Bleed Gas Pressure From The Machine; Howto Remove The Rear Panels; Howto Removethe Rearpanels; To Remove The Rear Upper Panel - GE Aespire 7100 Technical Reference Manual

Aespire 7100
9.1 How to bleed gas pressure from the machine
Before disconnecting pneumatic
fi创ngs，
bleed all gas
pressure 骨om
the machine.
1. Set the system switch to On.
2. Close all cylinder valves and disconnect all pipeline supplies from the source.
Note: If the machine includes N
2
0 , do not disconnect the O
2
pipeline.
If pipeline O
2
is not available , open the O
2
cylindervalve.
3. Tum the flow controls for all gases (except O
2 )
at least one tum countercloc阳ise.
4. Ensure that all cylinder and pipeline gauges read zero before proceeding.
• For machines with N
2
0 , disconnect the O
2
pipeline supply from the source
(or close the O
2
cylindervalve).
• Press the O
2
flush
bu忱。n
to bleed O
2
from 由esystem.
5. Set the system switch to Standby.
9.2 How to remove the rear panels
9 -4
9.2.1 To remove
the rear upper
panel
9.2.2 To remove
the lower access
萨anels
You must remove the rear upper panel to repair or replace many of the machine's
components. To access the 3rd cylinder supply (if equipped) you must remove the
lower access panels.
1. Bleed all gas pressure from the machine (Section 9.1).
2. Ensure that all cylinder and pipeline gauges read zero before proceeding.
3. Disconnect all electrical cables.
4. To remove the rear panel , fully loosen the three captive screws that hold the panel in
place. Remove the pane l.
• If the machine includes integrated suction , disconnect the two tube fittings from
the overflow safety trap manifold.
• If the machine includes electrical outlets
,
lower the panel and place it so that it
does not stress the power cable.
1. Bleed all gas pressure from the machine (Section 9.1).
2. Ensure that all cylinder and pipeline gauges read zero before proceeding.
3. If present , remove the inboard cylinders.
4. Remove (two screws) 伽 e small upper access panel ωaccessthe3时 cylinder
regulator (N
2
0) test
po比
5. Remove (six screws) the large lower access panel to access the
3时 cylinder
regulaωι
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