Page 119 - FreeStyler® Maintenance Manual

®
MAINTENANCE

Chapter 3 General Repairs

Pulsatron™ Suction and Discharge Valve - Replacement Procedure

 Flush the pump to clean any chemical from the liquid end.

 Unplug the pump, release any system pressure, and
disconnect the tubing or piping.
 Unscrew the suction and discharge valve cartridges and
return to Belanger®. Also remove the o-rings internal to the
pump head.
 Install new suction and discharge cartridges with the stamped
letter reading from top to bottom, and the arrow pointing in the
direction of flow. Hand tighten ONLY; DO NOT use wrenches
or pliers. Over tightening can cause the distortion of the
seats.
 Reconnect the tubing or piping and reinstall the pump.

 Prime the Metering Pump and check to assure the valves are
leak-free.

Questions to ask prior to returning a
Pulsatron™ Solenoid Metering Pump

 Was the Pump difficult to prime? Did it lose prime during normal operation?
Seal distortion could cause these issues.
 Has the volume of chemical being dispensed dropped off significantly?
If the valve ball is not seating properly the volume of chemical will be reduced during operation.

 Is there leakage at the suction or discharge valves?
Distortion of the ball seat could cause the chemical to leak through the check valves.

1MANUL222 Belanger, Inc.® * PO BOX 5470 * Northville, MI 48167-5470 * Ph (248) 349-7010 * Fax (248) 380-9681 3-55