Troubleshooting
14
3A2817A
These problems only apply to Pro
230ES model sprayers with brush
motors. They do not apply to Pro
270ES.
Motor armature for shorts by using
an armature tester (growler) or per-
form spin test, page 22.
Replace motor. See page 33.
Loose motor brushes and terminals.
Tighten terminal screws. Replace
brushes if leads are damaged.
Worn motor brushes. (Brushes
must be 1/2 in. minimum)
Replace brushes.
Broken and misaligned motor brush
springs. Rolled portion of spring
must rest squarely on top of brush.
Replace spring if broken. Realign
spring with brush.
Motor brushes are binding in brush
holders.
Clean brush holders, remove car-
bon dust with small cleaning brush.
Align brush lead with slot in brush
holder to assure free vertical brush
movement.
Motor runs and pump strokes
Low paint supply.
Refill and reprime pump.
Intake strainer clogged.
Remove and clean, then reinstall.
Suction tube or fittings loose.
Tighten; use thread sealant or seal-
ing tape on threads necessary
See if intake valve ball and piston
ball are seating properly. See pump
manual.
Remove intake valve and clean.
Check balls and seats for nicks,
replace if necessary. Strain paint
before using to remove particles
that could clog pump. See pump
manual.
Leaking around throat packing nut
which may indicate worn or dam-
aged packings. See pump manual.
Replace packings. Also check pis-
ton valve seat for hardened paint or
nicks and replace if necessary.
Strain paint before using to remove
particles that could clog pump. See
pump manual.
Pump rod damage.
Replace pump, page 17.
Motor runs but pump does not
stroke.
Displacement pump pin damaged
or missing.
Replace pump pin if missing. Be
sure retainer spring is fully in groove
all around connecting rod, page 17.
Connecting rod assembly damaged.
Replace connecting rod assembly.
See pump manual.
Gears or drive housing, page 20.
Inspect drive housing assembly and
gears for damage and replace if
necessary, page 20.
Type of Problem
What to Check
(if check is OK, go to next)
What to DO
(When check is not OK, refer to
this column
Содержание Pro 230ES
Страница 21: ...Drive Housing Replacement 3A2817A 21 ti2570d 12 23 54 9 1 44 25 42 47 22 12 12 70 47 10 40 10 8 ...
Страница 28: ...On Off Switch Replacement 28 3A2817A Pro 270ES Wiring Diagram MOTOR ti7380a ...
Страница 34: ...Motor Replacement 34 3A2817A 47 ti2569c 48 49 6 12 50 47 15 59 40 44 42 54 47 1 1 Liberally apply grease 1 ...
Страница 36: ...Motor Replacement 36 3A2817A ti7434b 12 23 54 48 22 12 59 47 47 15 12 49 50 ...