AFP Imaging Mini-Medical Series, Installation, Operation & Service Parts Manual

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Service
Mini Med Series 0000061122
Service Procedure 5-2
Servicing Circulation Pumps
The circulation pumps are easily removed for cleaning and/or servicing. For the early
style pump (Figure 5-2, Serial #'s below 8724), proceed as follows:
Removal
1) Unplug the processor from its power outlet.
2) Drain the tank from which the pump is to be removed.
3) Disconnect the pump power cable from the junction box.
4) Disconnect the outlet hose from the pump body.
5) Remove the drain filter disk from the bottom of the processing tank to expose the
four pump mounting screws.
6) Carefully remove the four screws and lower the pump.
NOTE: There are five “O” rings between the bottom of the tank and the mounting
surface of the pump (see Figure 5-2). Be sure to locate and save all 5 “O” rings when
removing the pump.
Disassembly & Cleaning
Developer recirculation pumps are usually cleaned adequately by systems cleaning and
do not require disassembly.
Fix and wash pumps should be disassembled for cleaning at least once a year to remove
hardened residue build up.
Disassemble and clean as follows:
1) Remove the four pump head assembly screws, (Figure 5-2).
2) Gently separate the pump head assembly. Locate and save the internal “O” ring seal
inside the pump head.
3) Remove the impeller from the pump head and thoroughly clean all pump head parts
in warm water.
Assembly
1) Reassemble the pump in reverse order. Lubricate the internal “O” ring with a silicone
base lubricant before installing. Do not over tighten the self-tapping assembly screws.
Installation
1) Carefully install the pump in reverse order of removal. Lubricate the 5 “O” rings
that seal the pump to the tank base with a silicone base lubricant before installing.
2) Test the pump for operation with water before installing chemistry.
5-9