Troubleshooting - Graco Matrix D Series Instruction Manual

Troubleshooting

Troubleshooting
WARNING
Read warnings, page 3.
Problem
Battery display Battery has low charge.
bars do not appear.
Meter display does Battery is dead.
not activate.
Battery inserted too soon.
Cable connections are loose or dis-
connected.
Electronic display is damaged.
Slow or no fluid CleanLine filter system is clogged.
flow from meter.
Meter is not in dispense mode.
Matrix meter filter is clogged.
Pump pressure is low.
Pump or reel fluid shut-off valve is
not fully open.
Meter hydraulic valve is not function-
ing.
Electronic board connections may be
loose or disconnected.
Trigger membrane switch is dam-
aged - flow bars DO NOT show on
the meter display when the trigger IS
actuated.
Meter valve is blocked with debris -
flow bars DO show on the meter dis-
play when trigger IS actuated.
Quick close nozzle is closed.
A hydraulic quick disconnect was
used to connect the meter to the dis-
pense hose, allowing debris to clog
meter.
16
Relieve pressure before you check or repair the meter.
Follow the Pressure Relief Procedure, page 8.
Be sure all other valves and controls and the pump are
operating properly. If using the chart below to trouble-
shoot is not successful, contact your Graco distributor
for repairs or component replacement.
Cause
Recharge battery.
Attempt to recharge a dead battery using procedures
outlined in the Battery Charger Instruction Manual
(309502). If procedure does not restore a normal
charge, replace the battery.
Wait 30 seconds and reinstall fully charged battery.
Ensure cables are properly connected. See page 22.
Replace with Bezel Repair Kit (246438). See page 33.
Clean or replace the CleanLine filter. Refer to the Clean-
Line Filter System Instruction Manual (310652).
See dispense options, page 14.
Clean or replace the Matrix meter filter element. See
Cleaning or Replacing the FIlter page 21.
Turn up air pressure to the pump. SeeTechnical Speci-
fications page 35.
Fully open pump or reel fluid shut-off valve.
If meter bars are lit indicating flow, the nozzle tip is fully
open, and the fluid flow has been verified to the meter
valve inlet, then the meter hydraulic valve has failed and
the meter should be replaced.
Verify that all connectors are connected or re-seated to
the board connections. See page 22.
Replace the trigger membrane using the Trigger Repair
Kit (246439 N. A., 249883 Australia). See page 33.
Flush the valve with mineral spirits at high pressure and
flow. Warning: do not exceed the maximum working
pressure of the meter (1500psi - 103 bar).
Open nozzle, see F
Quick disconnects should not be used with Matrix prod-
uct, doing so voids the warranty.
Solution
. 21 on page 15.
IG
309497K