Magnum Venus Plastech ATG Gel Coat Gun - Manual (Page 19)

ATG Chopper Gun Manual
Rev. 05/2012 Page | 19
27. Using a pin and wrench loosen the needle packing housing from the packing
retainer.
28. Check that the packing press moves freely in the packing housing, clean as
necessary.
29. Replace the two packing in the packing housing.
30. Hand tighten the packing housing, packing press and two new packing
together with the packing retainer.
Note: Use caution not to over tighten the packing retainer into the packing
housing as the resin needle will not go through the packing.
31. Tighten the lock nut to secure the packing housing.
32. Install the packing housing assembly (cartridge assembly) into the front of the
gun head.
33. Press the diffuser seat as far as it will go into the front of the gun head. Using
a 5/16 nut driver screw the diffuser seat in a few threads.
34. Install the resin needle assembly into the back of the gun head.
35. Using the 5/16 nut driver adjust the packing seat to where it is snug then just
a little more.
36. Insert the catalyst spool valve assembly into the back of the gun head.
37. Using the two (2) screws attach the cylinder assembly to the gun head.
38. Attach the gun head and cylinder to the handle.