Magnum Venus Plastech Pro Series VPRO-45220 22:1 & 7:1 - Manual (Page 30)

VPRO-45220 Series Resin Pump Manual
Rev. 11/2013 Page | 30
Remove The Piston Rod:
1. Remove the socket head cap screw and trip sleeve from the piston rod.
2. Check the socket head cap screw to make sure it is not bent.
3. Remove the upper slave arm from the pump by removing the hex cap screw which
secures the slave arm to the pump’s center section. Use two socket wrenches to
remove the hex screw. Use one wrench to hold the lock nut in position while using the
other wrench to remove the hex screw. Use caution not to drop the piston rod as the hex
cap screw is removed.
4. Remove the piston rod and inspect for damage and wear.
5. Remove o-ring from the bushing in the top of the center section (85723-3).
CAUTION: Use only genuine Magnum Venus Plastech replacement parts to replace
components of this system. Using other parts could result in injury to personnel and
damage to equipment. Clean & inspect all components for wear and damage, and replace
them as needed. Replace all the used components in the pump with the ones supplied
with the Seal Kit
Piston Rod Installation:
1. Coat o-ring with grease (08465) and install it into the bushing on top of the center
section.
2. Coat the top portion of the piston rod with grease (08465), and install up thru the center
section into o-ring. Use caution not to damage the o-ring.
3. Coat the hex screw with grease (08465).
4. Connect the upper slave arm to the piston rod by using the two wrenches to install the
hex screw and the lock nut.
5. Install the trip sleeve onto the socket head cap screw.
6. Put a drop of removable thread lock compound onto the threads of the socket head cap
screw extending thru the trip sleeve and thread it into the piston rod.