BIO-MED DEVICES IC-2A Service Manual page 32

d. Match each resistor line to the corresponding line in the unit that it will
replace. Once it is found in the unit, remove and replace each line one at a
time. (Refer to figure 2-2 for location of gates and lines.)
e. Remove and replace the logic gas tube with supply filter (Figure 6-1, item 23).
This runs from the tee in the lower center of the unit to the logic gas supply
fitting.
f. Install the new needle valves into their proper places and positions on the
front and rear panels. A new flat may have to be filed on the brass bushing
threads in order to install in earlier style panels.
g. Replace the control knobs.
h. When all the preventative maintenance replacement procedures have been
completed, the IC-2A Ventilator must be tested and recalibrate. Refer to
Section 5.
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