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Troubleshooting
Troubleshooting
Remove battery from sprayer and relieve
pressure before disassembling or repairing.
See Pressure Relief Procedure, page 4.
Sprayer Diagnostics
Problem
Fluid does not flow from
Sprayer Adapter
Sprayer makes sound but
no fluid is sprayed when
trigger is pulled.
Sprayer makes no sound
when trigger is pulled.
Fluid leaking from Hose
near Guard
Strap will not clip onto
ProPack Tank.
10
Cause
Valve Handle is closed.
ProPack is not primed.
Low fluid level in ProPack Tank.
Sprayer is not primed.
Prime Knob on sprayer is in PRIME
position.
Spray Tip is not in SPRAY position.
Speed Control on sprayer is set too
low.
Sprayer Pump has reached end of
life.
No battery or low battery voltage.
Problem with sprayer.
Loose nut on tank fitting, not
compressing gasket.
Clip on Backpack Strap is damaged
or broken.
www.graco.com/techsupport
Solution
Open Valve Handle.
Repeat Starting a New Job,
page 4. Verify Sprayer Adapter
and Hose are held below the
ProPack tank. Hose cannot be
over shoulder or hooked through
backpack strap.
Add more fluid to ProPack Tank.
Sprayer and ProPack will lose
prime when fluid level is near 32
oz (1 liter).
Prime ProPack and sprayer.
See Starting a New Job, page
4. Verify the following:
•
Fluid level is above outlet
fitting (more than
approximately 32 oz (1 liter).
•
No air is in hose.
•
Valve Handle is open.
Turn Prime Knob to SPRAY
position.
Turn Spray Tip to SPRAY
position.
Increase speed until sprayer
sprays.
Replace Pump Assembly. See
Sprayer manual.
Install fully charged battery.
See Troubleshooting in sprayer
manual.
Tighten nut from inside of
ProPack Tank.
Replace Hose Assembly. See
Parts, page 11.
Replace Backpack Strap. See
Parts, page 11.
3A8304B
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