Magnum Venus Plastech Pro Series VPRO-45220 22:1 & 7:1 - Manual (Page 25)

VPRO-45220 Series Resin Pump Manual
Rev. 11/2013 Page | 25
Assemble Foot Valve Assembly:
1. Lubricate the new foot valve ball with a light film of Red Grease (6706-2-1).
2. Roll the ball into the foot valve body.
NOTE: Handle the foot valve ball carefully. If it is damaged, it must be replaced.
3. Insert the spring (3102-16-1) on top of the ball.
4. Use the ball stop to secure the foot valve spring and the foot valve ball in the foot valve
body.
NOTE: The ball stop should be in the groove in the foot valve body, with the ball stop on
top of the spring.
5. Place the new O-Rings on the cylinder (15991-1) and lubricate them with Red Grease
(6706-2-1).
6. Insert the cylinder into the foot valve body.
7. Use the palm of your hand to press the cylinder securely into the foot valve until the
cylinder seats.
8. The foot valve will be installed on the pump later.
Remove Piston Body Assembly:
1. Remove the piston body.
CAUTION: Hold your hand under the pump as you loosen the piston body to prevent the
ball and piston ball spring from falling out.
2. If the ball falls, it must be replaced. Inspect the ball and spring to be sure that there is no
damage.
3. Remove the spring retainer and lower packing spring.
Disassemble Piston Body Assembly:
1. Separate the piston cup backup ring, the two piston cups, the piston cup spacer ring and
the compression ring. Inspect these components for wear and replace if necessary.
NOTE: The piston cups will have to be replaced during reassembly.