AMT 420A-160-90 Seal and Deflector Kit

The AMT 420A-160-90 is a Seal and Deflector Kit for an AMT Centrifugal Pump. Seal Replacement and Assembly: The following should prove helpful in reassembling the pump: 1. All parts, inside and out, should be clean. Dirt and grit will cause excessive wear, plus needless shutdown. 2. Install the deflector onto the motor shaft . 3. Press the mechanical seal into the volute cover . 4. Install the volute cover onto the motor . 5. Lubricate the O.D. of the shaft sleeve and the I.D. of the opposite half of the mechanical seal using International Products P-80 Emulsion Temporary Assembly Lubricant or equivalent or equivalent. Press the shaft sleeve through the seal. Coat the interior of the shaft sleeve with Dow Corning 732 Multi Purpose Sealant or equivalent. 6. Press the shaft sleeve onto the shaft and install seal spring. 7. Insert the impeller key into the shaft keyway. Install the impeller onto the shaft . 8. Coat the impeller bolt with Loctite 262 Threadlocker or equivalent. Install the impeller washer and bolt . 9. Install the casing ring into the casing . 10. Install the gasket and position the rotating assembly into the casing . 11. Install and tighten casing bolts. 12. Install all NPT fittings and tubing. 13. Rotate by hand when possible to ensure that the parts do not bind. 14. Inspect seal wash/vent kit for proper operation and or closed condition. Cleanout as required using proper solvent for copper and brass.