Decontamination
Note:
- Always follow your local guidelines and standard protocols.
 - Do not use acetone on the O-rings.
 
- Completely disassemble the pump. See Disassembly section.
 - Wash all pump components with phosphate-free soap or a detergent.
 - Rinse all components thoroughly with deionized water and dry.
 - Replace worn O-rings as necessary, and then reassemble.
 
Disassembly
- Unscrew and remove the Bottom Platen from the Pump Body.
 - Unscrew the Filter Retainer from the Bottom Platen and remove the Filter Mesh.
 
Note:
When disassembling 12 and 50 Mesh filter screen assembly, be careful of sharp screen edges.
- Pull to remove the Bottom Retainer from the Bottom Platen. Be careful not to lose the Check Ball.
 - Remove the Pump Body by un-threading it from the Top Platen.
 - Pull to remove the Top Retainer/Tubing Assembly from the Top Platen.
 
Reassembly
- Slide the Filter Mesh over the Filter Retainer until seated.
 - Thread the Filter Retainer into the Bottom Platen until the parts are finger tight.
 - Drop the 3/8" OD Check Ball into the top of the Bottom Platen.
 - Insert the Bottom Retainer into the top of the Bottom Platen. Push past the O-ring until the Retainer is firmly seated.
 - Insert the Top Retainer/Tubing Assembly into the Top Platen. Push past the O-rings until the Top Retainer is firmly seated.
 - Slide the Pump Body over Top Retainer Tubing/Assembly and thread onto the Top Platen until the O-ring seats firmly.
 - Thread the Bottom Platen with Bottom Retainer and Filter Retainer into the Pump Body until the O-ring properly seats.
 

Note:
If use of optional 3/8" tube barbs (#114845) is desired, use a small (2 mm) Allen key through the hole to help loosen and tighten the tubing stems as required.
Model 408 Mk2 2 ft. x 1.66" dia.Double Valve Pump (117252)

(Filter Retainer and Screen Assembly (Complete) 110517)



