Magnum Venus Plastech UltraMAX VHPC-2000 Series - Manual (Page 21)

VHPC-2000 Metering Pump Manual
Rev. 05/2012 Page | 21
7. Carefully insert the Piston Rod (4101-10-1) through the Outlet Body (4101-14-1).
8. Carefully press the Piston Rod Packing Set (4101-13-01), and Upper Guide (4101-12-1) into
Outlet Body (4101-14-1).
9. Screw the Packing Nut (4101-11-1) into the Outlet Body (4101-14-1). Screw the Packing
Nut until the Packing Set bottom in the Outlet Body cavity. Lightly snug the packing nut
with a wrench.
10. Insert the Piston Rod Spring (4101-3-1) into the Piston Rod (4101-10-1).
11. Insert the 5/32” SS Ball (9201-1-5) into the Piston Body (4101-4-1).
12. Screw the Piston Body (4101-4-1) onto the Piston Rod (4101-10-1), compressing the
Piston Rod Spring (4101-3-1) onto the 5/32” SS Ball (9201-1-5).
13. Install the Piston Seal (7304-2-1) onto the threaded end of the Piston Body (4101-4-1) spring
side up. Note seal orientation below.
14. Install the Piston Guide (4101-5-1) onto the Piston Body (4101-4-1) below the Piston Seal
(7304-2-1).
15. Screw the Seal Retainer (4101-6-1) onto the Piston Body (4101-4-1), hand tight.
16. Hold the Piston Rod (4101-10-1) with a wrench on the wrench flats, and tighten the Seal
Retainer (4101-6-1) with another wrench.
NOTE
Care must be taken to not scratch the Piston Rod.
NOTE
Care must be taken to not damage the Piston Rod Packing Set.
PISTON BODY
PISTON SEAL