Precision Medical Air-Oxygen Blender - Manual (Page 10)

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Air-Oxygen Blender
LOW FLOW
Figure F
16. Remove each diaphragm housing assembly
[20] from the manifold by removing the two hex
socket head screws [21] on the top of each
diaphragm housing with 5/32 hex key.
NOTE: If you have received engineered
composite blocks, keep the four (4) Hex
Socket head screws [21] and discard
the aluminum blocks you have removed.
[20]
QUANTITY - 2
[21]
QUANTITY - 4
Figure G
17. Using 5/32 in. long hex wrench, unscrew and
remove plug [22] from the bottom of the manifold
block.
18. Remove rear plug [22] from the back of the
manifold block. Insert a long 5/32 hex key through
rear plug opening, unscrew and remove the
alarm bypass body [23], ball [24] and spring [25].
QUANTITY - 2
[23]
[25]
[24] [22]
[22]
NOTE: For Engineered Composite Diaphragm Blocks disregard Figure “H” and proceed to
Figure “I” in the Blender maintenance process. Diaphragm blocks shall be installed in
pairs and aluminum blocks shall not be mixed with engineered composite blocks.
Figure H
19. Remove and discard the two O-rings [26] from the
bottom of each of the diaphragm housings [27].
20. Remove the four hex socket head screws [28]
holding diaphragm housings together.
21. Remove and discard the diaphragm [29].
22. Using Retaining Ring Pliers, remove and
discard check valves [30]. Ensure inner O-ring
[36] is removed from diaphragm housing.
NOTE: If check valve [30] comes apart when
removing it from diaphragm housing, a ¼
in. hex wrench or (#3 Phillips Screwdriver)
will be needed to complete removal of the
check valve from the diaphragm housing.
23. Repeat steps 19-22 for the remaining diaphragm
housing assembly.
24. Make sure all O-rings have been removed from
diaphragm housings and check valves.
25. Disassembly is complete.
26. Manifold block and diaphragm housing may be
ultrasonically cleaned.
Aluminum Blocks
[27]
[26]
QUANTITY - 2
QUANTITY - 4
[28]
QUANTITY -4
[29]
[30]
QUANTITY- 2
[36]
QUANTITY -2