D‐12
SP Pump Diagnostics and Repair
Remove the Magnetic Actuator Assembly
Part 1024496_05
See Figure D‐3.
1. Remove the two M5 screws (3), and then pull the can (2) off of the
actuator assembly (1).
See Figure D‐4.
2. Pull the actuator assembly away from the upper detent (4) to expose the
small tool hole in the shaft (3).
1
3. Place a
/
‐in. steel rod or similar tool into the tool hole to prevent the
8
actuator from rotating.
4. With the actuator assembly held in position with the
remove the valve spool nut (1), and then remove the bumper assembly
(2).
See Figure D‐5.
5. While holding the valve spool by the wrench flats (1) to prevent the spool
from rotating, unscrew the actuator assembly (2).
Magnetic Actuator
P/N 164606
Bumper assembly
P/N 1014650
Check/Repair
Magnets are secured to
the actuator shaft,
undamaged, and free of
debris
Check for wear
1
/
‐in. steel rod/tool,
8
Clean, tighten the
magnets, or replace as
needed
Replace if worn
E 2011 Nordson Corporation