Pulsafeeder Pulsar Shadow - Manual (Page 27)

9. Remove the final bolt and rinse or clean the reagent head as required. 9. Remove the final bolt and rinse or clean the reagent head as required.
10. Remove the diaphragm by turning counter-clockwise and inspect the diaphragm. The
diaphragm must be replaced if any surface is cracked, separated, or obviously damaged.
10. Remove the diaphragm by turning counter-clockwise and inspect the diaphragm. The
diaphragm must be replaced if any surface is cracked, separated, or obviously damaged.
11. To install a diaphragm, first ensure that the critical sealing areas of diaphragm, reagent head,
and pump head are clean and free of debris. Lubricate the elastomer (back) side of the
diaphragm liberally, where it is in contact against the pump head and deflection plate, with a
lubricant compatible to the fluid being pumped (silicone grease is preferred ex. Parker ‘Super
O-Lube’).
11. To install a diaphragm, first ensure that the critical sealing areas of diaphragm, reagent head,
and pump head are clean and free of debris. Lubricate the elastomer (back) side of the
diaphragm liberally, where it is in contact against the pump head and deflection plate, with a
lubricant compatible to the fluid being pumped (silicone grease is preferred ex. Parker ‘Super
O-Lube’).
12. Thread the diaphragm (clockwise) fully onto the shaft. When reinstalling a used diaphragm it
is not necessary to maintain the previous orientation relative to the reagent head or pump
head hole pattern.
12. Thread the diaphragm (clockwise) fully onto the shaft. When reinstalling a used diaphragm it
is not necessary to maintain the previous orientation relative to the reagent head or pump
head hole pattern.
13. Install the reagent head and tighten the bolts in an alternating pattern to ensure an even
seating force. Torque to the values recommended in Appendix III.
13. Install the reagent head and tighten the bolts in an alternating pattern to ensure an even
seating force. Torque to the values recommended in Appendix III.
14. Replace the check valve assemblies. It is recommended that new o-ring seals be utilized
when these components have been disassembled for maintenance.
14. Replace the check valve assemblies. It is recommended that new o-ring seals be utilized
when these components have been disassembled for maintenance.
15. Reprime the pump per the procedure outlined in Section 6.2 . 15. Reprime the pump per the procedure outlined in Section 6.2 .
7.1.2 Leak Detection 7.1.2 Leak Detection
Follow the same procedures as described for the standard diaphragm, steps 1-15.
Follow the same procedures as described for the standard diaphragm, steps 1-15.
It is not necessary to remove or replace the LDA secondary (rear) diaphragm unless it has
been damaged. It is not necessary to remove or replace the LDA secondary (rear) diaphragm unless it has
been damaged.
I
F DISASSEMBLY OF THE HEAD IS REQUIRED
,
EXERCISE CAUTION DURING REMOVAL
SINCE THE RETURN SPRING OF THE PISTON IS UNDER FULL LOAD . C ONSULT FACTORY
PRIOR TO PERFORMING THIS PROCEDURE
.
I
F DISASSEMBLY OF THE HEAD IS REQUIRED
,
EXERCISE CAUTION DURING REMOVAL
SINCE THE RETURN SPRING OF THE PISTON IS UNDER FULL LOAD . C ONSULT FACTORY
PRIOR TO PERFORMING THIS PROCEDURE
.
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