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How to replace the shaft seal on a KM pump
00:13 Step1. Remove the bearing cap
00:23 Step2. Remove the grease
00:29 Step3. Remove the lock washer and the shaft nut
00:57 Step4. Remove the bearing housing
01:50 Step5. Remove the retainer ring
02:12 Step6. Remove the used shaft seal
02.29 Step7. Mount the new shaft seal
02:42 Step8. Clean the sealing surface carefully
02:50 Step9. Mount the carbon ring in the container ring
03:02 Step10. Clean the sealing surface of the carbon ring
03:07 Step11. Mount the retainer
03:34 Step12. Remove the rear cap and the bearing from the bearing housing
03:52 Step13. Mount the rear cap again loosely
03:59 Step14. Mount the bearing housing
04:45 Step15. Mount the bearing
05:09 Step16. Mount the shaft nut and the lock washer
05:25 Step17. Mount the bearing cap loosely
How to line up the rotor
05:38 Step1. Make sure that the four bolts in the front bearing cap are tighten
05:43 Step2. Place a precision clock on the shaft
05:58 Step3. Force the rotor back until it makes contact with the rear flow plate
Now the rotor has contact with the flow plate and cannot be turned by hand
06:24 Step4. Loosen the bearing cap again
06:43 Step5. Reset the clock (O)
06:59 Step6. Force the rotor forward until it makes contact with the front flow plate
07:13 Step7. Make sure that the rotor has contact with the front flow plate
07:18 Step8. Note the rotors total moving space
In the case 0.36 mm
07:41 Step9. Move the rotor back again and ensure the equal space in both ends of the rotor
In this case 0.36mm/2=0.18mm
08:12 Step10. Lock the bear bearing by tightening the flour bolts
The rotor is now centered and locked
08:31 Step11. Check that the rotor is running free
08:42 Step12. Grease the pump according to the manual
For more information please visit: https://www.samson-pumps.com