Patriot - Testing & Adjusting Manual
Rev. 01/2016
Page | 26
Down stroke Upstroke
Down stroke Upstroke
Down stroke
T
B
T
B
T
B
Result 2:
Material delivered at the top and bottom of the stroke is hot (curing very rapidly). Also
thin areas of material might be noticeable compared to the volume delivered in the
middle of the stroke, see figure above.
Indicates:
Low resin at the top (T) and bottom (B) of the pump stroke.
Probable Cause:
There is no or improper accumulator effect in the resin system.
Solution:
Resin accumulator full of hard material or has a blockage, clean resin
accumulator. Clean resin filter and reinstall. Incorrect accumulator installed.
Pump pressure is too high, lower resin pressure. See chapter 5 for accumulator
charging procedures
NOTE: Use caution as there may be some material still in the accumulator, a long
narrow rod can be inserted up through the filter body to lift the polyball off the
seat and allow any remaining material to drain if desired.
Start Spray Test
Direction of gun travel
End Spray Test
Result 3:
Material delivered on the catalyst pump up-stroke (from the bottom of the stroke to the
top) is not curing or slow cure (see figure above).
Indicates:
No catalyst is being delivered on the up-stroke.
Probable Cause:
Worn or damaged catalyst piston seal
Damaged catalyst pump cylinder.
Worn or damaged piston body ball.
Damaged piston body ball seat.
Solution:
Replace worn and damaged parts, see
Service and Repair Manual.
