1250E & 1500E Electric Pump
Operating Manual
CP/MAN-PRD-1215E REV. 02 EFF. DATE: 12/15/12 Page 12 of 13
FIGURE 4
NOTE: When replacing adjustable packing, always install the packing rings exactly as they
are shipped. Rearranging the order of the vee-rings in an adjustable packing set will
reduce the life of the elastomer ring in the packing set.
12.12. Grease the packing rings on their outside diameters lightly and install them, one ring at a time. It is
important to adhere to the ring order and orientation as shown in the diagram.
NOTE: On the 1/8” Series 1250 and the ½” and ¾” Series 1500, the packing fits inside the
sleeve rather than directly into the packing gland.
12.13. On the 1/8” plunger model, replace the internal snap ring to retain the sleeve.
12.14. Grease the packing nut threads and replace the nut loosely by hand.
12.15. Grease the plunger rod protruding from the pump motor.
12.16. Taking care to insert the plunger into the packing without damaging or bending it, replace the
chemical head onto the main body of the pump.
12.17. Grease the threads on the two head bolts, then insert and hand-tighten them.
12.18. Tighten the packing nut to the point where light pressure with one finger on the packing nut
adjuster will no longer move the packing nut.
12.19. Fully tighten down the head bolts. Failure to adhere to this procedure can lead to a misaligned
head and leaking packing.
12.20. Reattach all process lines to the chemical head, and open all isolation valves leading to the pump
chemical supply and discharge.
12.21. Adjust the packing nut per the directions in Section 11.
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