Magnum Venus Plastech UltraMAX VHPC-3200 Series - Manual (Page 18)

VHPC-3200 Metering Pump Manual
Rev. 05/2012 Page | 18
Metering Pump Disassembly:
1. Remove Check Valve (CV-2000) from Inlet Body and then remove and discard
the O-Ring (O-S-013). Note the Check Valve is not used on the Adhesive
version of the metering pump.
2. Loosen Lock Nut and unscrew the Outlet Body from the Cylinder.
3. Remove the Seal Retainer from the Piston Body.
4. Remove and discard the Piston Seal.
5. Remove the Piston Body from the Piston Rod.
Note: Use wrench flats provided in order to avoid damaging the Piston rod.
6. Remove and discard the 5/16” SS Ball (03021).
7. Remove and retain the Piston Rod Spring (04009-1).
8. Unscrew the Packing Nut and pull the Piston Rod out of the Outlet Body.
NOTE: Carefully pull the Piston Rod out of Cylinder to avoid damaging the
interior surface of cylinder. Inspect the Piston Rod for scratches or other damage.
Replace if necessary.
9. Insert a 1/4” diameter dowel into the bottom of the Outlet Body, force the Piston
Rod Packings (02021-1) out through the top of the Outlet Body and discard.
NOTE: The Adhesive version of the meter pump uses a Rod Guide and Cup Seal
in place of the Packing set. Care must be taken to not damage the inside of the
Outlet Body.
10. Unscrew the Cylinder from the Inlet Body.
11. Remove and discard the two O-Rings (O-S-022). Inspect the Cylinder for
scratches, or other damage, and replace if necessary.
12. Remove and discard the 7/8” SS Ball (03071). Inspect the seat inside the Inlet
Body, for nicks, scratches, or other damage, and lap, or replace if necessary.
13. Remove the Inlet Tube Fitting. Remove and discard the O-Ring (O-S-013).
NOTE: Once disassembly is complete all parts should be flushed in distilled
water and inspected for damage and replaced if necessary.