English
9.808-136.0 Rev. 00 (09/18)
18
1.
Inspect the inlet and outlet check valves for debris, func-
on and condi on. See sec on 6.5.1. If check valves are
good con nue to #2.
2. Inspect packings, ceramic pistons and connec ng rod con-
nec on. See sec on 6.5.2. If packings, pistons and con-
nec ng rod connects are good con nue to #3.
3. Call Technical support for further instruc on.
6.3.2
Pulsa$on
6.3.3
Cavita$on
1. Inspect the inlet screen for debris, func on and condi on.
See sec on 6.5.3. If inlet screen is good con nue to #2.
2. Connect an adequate water supply to inlet of machine.
NOTE: an adequate water supply is 1 gallon a minute
more the specifica on of the machine no more than 8 bar
(116 PSI). Visually inspect the machine for ANY water drips
or leaks, including under pump. Drips or leaks from the
inlet plumbing can allow air to be introduced into the wa-
ter stream when pump is working. If there are no leaks
con nue to #3.
3. Remove thermal protector and plug plumbing where ther-
mal protec on was (only for tes ng purposes). See sec on
6.5.4. If thermal protector is good con nue to #4
4. Inspect packings and ceramic pistons. See sec on 6.5.2. If
packings and ceramic pistons are good con nue to #5
5. Call Technical support for further instruc on.
6.3.4
Low pressure
1. Inspect the pressure nozzles. See sec on 6.4.13. If the
nozzles are good con nue to #2.
2. Test pressure reading at trigger gun quick disconnect. See
sec on 6.5.5. If pressure reading is low con nue to #3.
3. Inspect the high pressure filter. See sec on 6.4.15. If pres-
sure reading is low con nue to #4
4. Remove unloader outlet hose. Install test gauge, test
hose, trigger gun and correct size nozzle. Test pressure
washer. See sec on 6.5.6. If pressure tests low con nue
to #5
5. Remove the unloader valve and test the pump for pres-
sure. NOTE:
DO NOT STOP THE OUTLET WATER STREAM
See
sec on 6.5.7. If pressure tests low con nue to #6
6. Inspect packings, ceramic pistons, and connec ng rods.
See sec on 6.5.2. If pieces are good con nue to #7.
7. Call Technical support for further instruc on.
6.3.5
Spray bar will not spin
1. Inspect swivel See sec on 6.5.8. If the swivel is good con-
nue to #2.
2. Inspect the pressure nozzles. See sec on 6.4.13. If the
nozzles are good con nue to #3.
3. Test for low pressure. See sec on 6.2. If pressure tests
good con nue to #4
4. Call Technical support for further instruc on.
