AIRLESSCO HSS9000 - Manual (Page 19)

Troubleshooting
3A1188C 19
Troubleshooting
General
Problem Cause Solution
Gas engine pulls hard (won’t
start) Hydraulic pressure is too high Turn hydraulic pressure knob counter clock-
wise to lowest setting.
Gas engine does not start Switch OFF, low oil, no gaso-
line Consult engine manual, supplied
Gas engine doesn’t work
properly Faulty engine, Elevation Consult engine manual, supplied
Gas engine operates, but dis-
placement pump doesn’t
operate Hydraulic pump valve is OFF Set hydraulic pump valve ON
Pressure setting too low Increase pressure
Displacement pump outlet filter
(if used) is dirty or clogged Clean the filter
Tip or tip filter (if used) is
clogged Remove tip and/or filter and clean
Hydraulic fluid too low Shut off sprayer. Add fluid*.
Belt worn, broken, or off Replace belt
Hydraulic pump not working or
damaged Bring sprayer to Airlessco distributor for
repair.
Dried paint seized paint pump
rod Service pump
Hydraulic motor not shifting Set pump valve OFF. Turn pressure down.
Turn engine OFF. Pry rod up or down until
hydraulic motor shifts.
Displacement pump operates,
but output is low on upstroke Piston ball check not seating
properly Service piston ball check.
Piston packings worn or dam-
aged Replace packings. See Packing Replace-
ment Procedure, page 16.
Displacement pump operates
but output is low on down-
stroke and/or on both strokes Piston packings worn or dam-
aged Tighten packing nut or replace packings. See
Packing Replacement Procedure, page 16.
Intake valve ball check not
seating Service intake valve ball check.
Suction tube air leak
Paint leaks and runs over side
of wet-cup Loosen wet-cup Tighten wet-cup enough to stop leakage
Throat packings worn or dam-
aged Replace packings. See Packing Replace-
ment Procedure, page 16.