English
9.808-136.0 Rev. 00 (09/18)
33
6.5.7
Test pressure off the pump
1.
Remove the unloader from the pump. First, remove the
high pressure outlet hose from the unloader.
2. Then with a 7/8” box wrench remove the top banjo bolt
fi>ngs from the pump.
3. Then with a 1 1/4” open end wrench remove the bo"om
banjo bolt fi>ng from the pump.
4. Install a quick disconnect nip-
ple to the pump outlet and the
garden hose fi>ngs back to the
pump inlet.
1. Install test gauge, test hose,
test gun, test nozzle (make sure to
use size of nozzle listed on the seri-
al plate)
2. Test machine with spray wand trigger. DO NOT LET GO OF
THE TRIGGER. There is no longer a safety bypass valve. If
the trigger is released the system will over pressurize and
major damage or severe injury will occur.
Machine should have a running pressure of 2500 psi.
If 3000 psi then replace and set unloader. See sec on 6.5.15
6.5.7
Test pressure off the pump
