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Pump and Piston Set

Models 417, 421, 450


Item Part No. Description
Figure l 32062 Pump Kit
1 06010 Shaft
2 05055 Nut
3 390763 Gasket, Rayon
4 04016 Cap
5 290522 O-ring
6 29240 Teflon Seal
7 390764 S.S. Shim
8 N/A Shaft
9 10015 Piston & Shaft
10 290526 O-ring
11 32072 Cylinder
12 280512 Screw

Notes

Item 9 & 11 are recommended to be ordered together, so they will match each other.

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Important Pump Diagnosis & Assembly Procedures

  1. Make sure shaft 1 orientation with respect to shaft 8 is as shown in the diagram. If they are reversed, pump inlet & outlet will be reversed as well.
  2. Chemicals may build up on the shaft 8 surface. The build-up may wear out Teflon seal. Use fine sand paper and gently sand shaft 8 to remove build up. Replace Teflon seal if necessary.
  3. Clean shaft 1, nut 2 and shaft 8 hole surfaces. Then apply thread locking compound during assembly.
  4. Place O-ring 10 on cylinder 11 for better installation of cap 4. Hairline debris or dirt lying on the O-ring 10 will cause leaks. Clean and remove dirt from O-ring 10 before assembly.
  5. Clean piston 9’s outside surface as chemical build up may cause jamming of the piston with the cylinder. Use very fine sand paper to gently sand off the chemical build up if necessary.
  6. Do not over tighten screw 12 as over tightening will deform the cylinder and hinder piston 9’s motion.