English
9.808-136.0 Rev. 00 (09/18)
31
6.5.3
Inspect inlet screen
1.
Remove inlet screen.
2.
Inspect for good seal to garden hose, debris, damage to
rubber gasket and/or damage to mesh screen. Clean if
needed. Replace if needed.
3. Install inlet screen.
6.5.3
Inspect inlet screen
6.5.4
Bypass thermal protector
A thermal protector can go bad and not leak water. If this hap-
pens the pump could suck air through the damaged thermal
protector.
1. With a 1” open end wrench remove the thermal protector
for the inlet plumbing.
2. Install a threaded 1/2” plug into inlet
plumbing where the thermal protector
was.
3. Coupler a test gauge between the pressure hose and the
gun, test machine. If the machine cavita on stopped re-
place thermal protector with a new one.
4. Install thermal protector. Make sure to seal
pipe threads with approved sealant.
6.5.5
Test pressure of machine
1. Install test gauge between the pressure hose and trigger
gun.
2. Test machine with trigger gun, spray wand and pressure
nozzle.
Machine should have a running pressure of 2500 psi and a
spike pressure of less than 500 psi.
Spike is the pressure read on the gauge when you release the
trigger minus the running pressure of the machine.
Example: Running pressure = 2500 psi.
Pressure reading when trigger is released = 2900 psi.
Spike pressure = 400 psi ( 2900 - 2500)
