Graco SaniSpray HP 130, Operation - Repair - Parts

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Troubleshooting
3A7656C 25
Troubleshooting
Mechanical/Fluid Flow
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1. Disconnect power cord and follow
Pressure Relief Procedure , page 12,
before checking or repairing.
2. Check all possible problems and causes
before disassembling the unit.
Problem
What to Check
If check is OK, go to next
check
What to Do
When check is not OK,
refer to this column
Pump output is low Spray Tip worn. Follow Pressure Relief
Procedure , page 12, then
replace Spray Tip.
Fluid supply. Refill and reprime Pump.
Inlet 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 Pump if
necessary. See Notes , page
33.
Prime/Spray Valve leaking. Follow Pressure Relief
Procedure , page 12, then
replace Control assembly. See
Notes , page 33.
Verify Pump does not continue
to stroke when Spray Tip
trigger is released. (Prime/
Spray Valve not leaking.)
Replace Pump if necessary.
See Notes , page 33.
Leaking around throat packing
nut which may indicate worn or
damaged packings.
Replace Pump if necessary.
See Notes , page 33.