Magnum Venus Plastech High Duo Pro Gun - Manual (Page 22)

MAGNUM VENUS PLASTECH HIGH VOLUME DUO PRO GUN 22
Install Valve Rod
1. Insert the Valve rod (HVDG-2209) into the Gun block through the resin side.
Use the Seal Installation tool to center the valve rod.
Note: Make sure that the valve rod is correctly aligned; rotate the Valve Rod so
that the large Actuating stem hole (relief side) is pointing down and the slot on
the end of the Valve Rod is on the left side of the Gun block when looking at
the back of the gun.
Reinstall Actuating Stem
1. Screw the Actuating stem (58147-1) into the Valve rod (HVDG-2209) through
the Center spacer.
Note: Make sure the Actuating stem is screwed into the side of the Valve rod
with the larger hole (thread relief).
2. Look down the front of the gun while moving the actuating stem back and
forth. You should be able to see the holes open and close. The Valve rod is
installed properly when the Actuating stem is rotated toward the front of the
Gun block and the ports are open (see through the gun block). Set the
actuating stem so that the holes are closed.
Tighten Packing Nuts
1. Tighten both the Packing nuts – do not over tighten.
2. Move the Actuating stem back and forth, opening and closing the gun.
3. Again tighten both the Packing nuts.
4. Repeat the above tightening process one more time
5. Thread the two Set Screws (HVDG-2211) and Seals (7304-3-1) into the top
side of the Gun Block.
GUN BLOCK - BACK
GUN BLOCK - FRONT
VALVE ROD
LARGE HOLE WITH THREAD RELEIF
POINTING DOWN THROUGH THE
BOTTOM OF THE GUN BLOCK –
SLOT ON THE LEFT SIDE.