5/Maintenance
1503-0151-000 5/26/0 5-3
CAUTION
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Once you start the threads on the filter bowl, with the O-ring
mounted to the bowl, do not back out the filter bowl unless you
take the it all the way out and restart the mounting. If the bowl is
partially unscrewed or backed out from the manifold seat, the O-
ring will slip out of place and result in an unacceptable leak.
Free Breathing Valve Maintenance
1. Remove the deflection tube of the free breathing valve.
CAUTION:
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The deflection tube will collapse and tends to close off if it is
stored for a period of time without something to hold it open in its
original shape.
2. Unscrew the valve seat from the bottom of the control module man-
ifold, it should be hand tight.
Figure 5-2
Free Breathing Valve deflection tube and seat removal
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