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Troubleshooting
Troubleshooting
Mechanical/Fluid Flow
1.
Follow Pressure Relief Procedure,
page 10, before checking or repairing.
Problem
Pump output is low
30
2.
What to Check
If check is OK, go to next
check
Spray tip worn.
Spray tip clogged.
Paint supply.
Intake strainer clogged.
Intake valve ball and piston
ball are not seating properly.
Fluid filter or tip filter is
clogged or dirty.
Prime valve leaking.
Verify pump does not continue
to stroke when gun trigger is
released. (Prime valve not
leaking.)
Leaking around throat packing
nut which may indicate worn
or damaged packings.
Battery has insufficient charge. Charge battery.
Check all possible problems and causes
before disassembling the unit.
What to Do
When check is not OK,
refer to this column
Follow Pressure Relief
Procedure, page 10, then
replace tip. See separate gun
or tip manual.
Relieve pressure. Check and
clean spray tip.
Refill and reprime pump.
Remove and clean, then
reinstall.
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.
Clean filter.
Follow Pressure Relief
Procedure, page 10, then
repair prime valve.
Service pump. See pump
manual.
Replace packings. See pump
manual. Also check piston
valve seat for hardened paint
or nicks and replace if
necessary. Tighten packing
nut/wet-cup.
3A9031A
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