10
309879
Troubleshooting
LOW OR FLUCTUATING OUTPUT
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
Motor runs and pump strokes
1. Paint supply.
1. Refill and reprime pump.
2. Intake strainer clogged.
2. Remove and clean, then reinstall.
3. Suction tube or fittings loose.
3. Tighten; use thread sealant or sealing tape
on threads if necessary.
4. To see if intake valve ball and piston ball are
seating properly. See page 25.
4. Remove intake valve and clean. Check
balls and seats for nicks; replace if neces-
sary, page 25. Strain paint before using to
remove particles that could clog pump.
5. Leaking around throat packing nut which may
indicate worn or damaged packings. See
page 25.
5. Replace packings, page 25. Also check
piston valve seat for hardened paint or
nicks and replace if necessary. Tighten
packing nut/wet-cup.
6. Pump rod damage.
6. Repair pump, page 25.
Motor runs but pump does not
stroke
1. Displacement pump pin (9a) (damaged or
missing), page 25.
1. Replace pump pin if missing. Be sure re-
tainer spring (9b) is fully in groove all
around connecting rod, page 25.
2. Connecting rod assembly (9) for damage,
page 23.
2. Replace connecting rod assembly,
page 23.
3. Gears or drive housing, page 23.
3. Inspect drive housing assembly and gears
for damage and replace if necessary,
page 23.
Summary of Contents for 2300
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