Troubleshooting - Graco 24N950 Operation - Repair - Parts

Troubleshooting

Troubleshooting
Problem
Pump/motor runs but
material is not being sprayed
Pump/motor runs but mate-
rial comes out prime hose
Pump/motor does not run
when spray button is in
28
Cause
Paint hopper is empty
Field marker is not primed
Field marker inlet ball check valve has
foreign material in passage way.
Field marker inlet ball check valve is
stuck shut due to improper cleaning
and storage.
Prime/spray valve is UP
Material dispenser tip is plugged
Material dispenser tip and/or filter is
plugged
CleanShot has foreign particles in pas-
sageway
Battery is discharged. Spray button is
red when button is in.
Motor plug is disconnected
Spray button plug is disconnected
Battery fuse has faulted resulting in an
open circuit (blown fuse)
Wires to battery have become loose,
disconnected or damaged
Field marker fluid path is plugged
between pump and prime/spray valve
Pump/motor is damaged
Solution
Fill paint hopper with spray material.
Prime field marker. See Starting a New Job, page 13.
Remove foreign material in the field marker inlet ball
check valve by:
1. Empty the paint hopper.
2. Remove paint hopper screen.
3. Add 0.5 gallons (2 liters) of water to the paint hopper.
4. Use a thin rod to move inlet ball check up and down.
NOTE: If paint particles seem to be settling in hopper
screen, strain paint with a paint sock prior to filling
hopper.
Move valve handle DOWN to spray position.
Clean material dispenser tip by reverse spraying. See
Reversible Spray Tip, page 11.
Clean material dispenser tip by reverse spraying and
clean filter. See Unclogging Spray Tip/Guard
Assembly, page 17.
If tip does not clean by using Reversible Spray Tip
procedure, remove tip and clean using a cleaning wire
pick, water and pressurized air or water (compressed air or
nozzle jetted city water). If tip cannot be cleaned, replace
tip.
See Tip Removal/Cleaning, page 19.
See CleanShot Removal/Cleaning, page 19.
Connect battery charger and recharge battery. See
Charging the Battery, page 8.
Connect motor plug on battery shroud. See (N)
Component Identification, page 6.
Connect spray button on battery shroud. See (P)
Component Identification, page 6.
Remove battery shroud and check for pinched or shorted
wires before replacing fuse. See Fuse Replacement,
page 21.
Tighten wire connection or reconnect. See Battery
Replacement, page 22.
Perform Pressure Relief Procedure, page 10. If pressure
cannot be relieved as evidenced by material flowing out of
prime hose, STOP and contact Graco Technical Support
or bring field marker to Graco distributor for repair.
NOTE: Red light on spray button will be flashing.
Remove pump/motor for repair. See Pump/Motor
Removal, page 25. Contact Graco Technical Support or
bring field marker to Graco distributor for repair.
332119E