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NNUAL PM INSTRUCTIONS
PREVENTATIVE MAINTENANCE KIT
Check Valve Replacement
Each DSD EDGE endoscope reprocessor has three check valves located in both the A and B main manifold and two in
the B station water and disinfectant valves.
Parts Required Part number Qty
Check valves 78401-260 1 (Kit of 8 Check Valves &
16 Sealing O-rings)
Tools
3/16-inch Allen wrench
Silicone Grease
Procedure
With the main module lying on a table, remove the four check valve block retaining screws with a 3/16-in Allen
wrench. Refer to figure 35.
Once all four retaining screws are removed, gently rock the check valve block back and forth gently to release the
block with the check valves from the main manifold.
With the block removed, note the orientation of the check valves. It is imperative the new check valves be reinserted
in the same direction. Refer to figure 36.
Remove the check valve from the check valve block. Remove the O-ring from both ends of the check valve. The O-
ring may be found in both the check valve holes on both the check valve block and the main manifold.