Troubleshooting
10 3A2333B
Troubleshooting
Mechanical / Fluid Flow
Perform Pressure Relief Procedure; page 9. Wait 5 minutes before servicing.
TYPE OF PROBLEM
WHAT TO CHECK
If check is OK, go to next check
WHAT TO DO
When check is not OK, refer to this column
ERROR=XX is displayed Fault condition exists Determine fault correction from table,
page 12.
Pump output is low Spray tip worn Follow Pressure Relief Procedure on page 9,
then replace tip. See your separate gun or tip
manual.
Spray tip clogged Relieve pressure. Check and clean spray tip.
Paint supply Refill and reprime pump.
Intake strainer clogged Remove and clean, then reinstall
Intake valve ball and piston ball are
not seating properly
Remove intake valve and clean. Check balls
and seats for nicks; replace if necessary; see
pump manual. Strain paint before using to
remove particles that could clog pump.
Fluid filter, tip filter, or tip is clogged
or dirty.
Clean filter; see operation manual.
Prime valve leaking Relieve pressure. Repair prime valve.
Verify pump does not continue to
stroke when gun trigger is released.
(Prime valve not leaking.)
Service pump; see pump manual.
Leaking around throat packing nut
which may indicate worn or damaged
packings.
Replace packings; see pump manual. Also
check piston valve seat for hardened paint or
nicks and replace if necessary. Tighten pack-
ing nut/wet-cup.
Pump rod damage Repair pump. See pump manual.
Pump output is low Low stall pressure Turn pressure knob fully clockwise. Make sure
pressure control knob is properly installed to
allow full clockwise position. If problem per-
sists, replace pressure transducer.
Piston packings are worn or dam-
aged
Replace packings; see pump manual.
O-ring in pump is worn or damaged Replace o-ring; see pump manual.
Intake valve ball is packed with mate-
rial
Clean intake valve; see pump manual.
Pressure setting is too low Increase pressure; see pump manual.
Large pressure drop in hose with
heavy materials
Use larger diameter hose and/or reduce overall
length of hose.
To Next Page
Loading...
Need help?
General
