Magnum Venus Products Gelcoat Gun ATG-6500-COOK

Catalyst Spool Valve Assembly Removal and Maintenance

Remove the catalyst spool valve assembly from the gun head.

Identify the parts of the catalyst spool assembly

Unscrew the valve back from the catalyst piston, ensuring not to lose the lock nut.

Replace the O-rings on the valve back and catalyst piston.

Apply a drop of removable thread lock compound on the threads of the valve back, then thread the valve back into the catalyst piston.

Unscrew the valve front from the valve back (reverse-threaded, unscrew counter-clockwise).

Replace the O-rings on the valve front and the O-ring between the valve front and valve back.

Remove and check the spring from inside the cylinder

Check the inside of the cylinder

Check and clear the air ports on the bottom of the cylinder

Cylinder Lubrication and Reassembly

Lubricate the inside of the cylinder

Reinstall the spring into the cylinder