Maintenance
Ampco Pumps Company
Page 12
The AC+ Dry Blender requires normal cleaning and inspection to insure its best
performance. The blender is relatively maintenance free but Ampco Pumps Company
recommends periodic inspection of seals and seal faces. Worn or damaged parts that
may include cuts or abrasions to seals or nicks or cracks to seal faces, should be replaced
upon detection. In order to clean and sanitize the blender, it is necessary to disassemble all
the parts to the AC+ except for the drive motor.
1. Disconnect the liquid supply piping and the discharge piping from the
blender.
2. Remove the clamp securing the hopper to the AC+ Dry Blender. **The
AC+4329 is normally
not
ordered with a hopper and valve. If that is the case
with your blender, skip to step 5.
3. Remove the clamp connecting the end connections of the Butterfly valve.
4. Refer to valve manual for disassembling the valve.
5. Remove the clamps and blender tubes, beginning at the top and working
towards the bottom. Continue until you reach the casing.
6. Remove the clamp that secures the casing to the back plate. Use both
hands to firmly grasp the casing, pulling it up and off the back plate. **A
gasket separates the casing and back plate. Do not use a tool to try and pry
them apart. This could damage the surfaces of the adapter ring and the
gasket. Firmly tugging the casing should separate the casing from the back
plate.
7. Remove the screen inside the casing.
8. Remove the impeller and back plate. Protect the sealing surface of the
back plate against all nicks and scratches when removing for cleaning and
disassembly.
9. Rinse all disassembled parts with lukewarm water (approximately 100° F)
until all traces of product are removed.
10. Clean all the components with an all-purpose, powdered alkaline cleaner,
following manufacturer’s recommendations.
11. Immediately rinse with lukewarm water until all of the cleaning agent has
been removed.
12. Rinse with hot water.
13. Place components so they will drain and air dry.
14. Inspect o-rings and replace if necessary.
15. Before reassembling, spray gaskets with a sanitary lubricant.
16. If any damaged or worn parts are noticed during cleaning, replace them
before reassembling the unit.
17. Reverse the order of disassembly to reassemble the blender.
WARNING
Relieve pressure and remove all fluid from blender prior to disassembly
WARNING
Turn off electrical power supply and Lock Out before servicing or maintenance.
Use a locking device for which only the person doing the work has the key.
Ampco Pumps Company AC+ Dry Blender Manual M-028 Rev C 12.20
