Troubleshooting
48 3A3394E Repair - Parts
Gun does not trigger
Engine clutch switch is not turned ON. Turn engine clutch switch ON.
Gun selector switch is OFF. Turn gun selector switch ON.
Display is in AUTO MODE and speed is less
than 0.7 mph (1.1 kph).
Increase ground speed to be greater than 0.7 mph
(1.1 kph).
System pressure is too low.
Increase fluid pressure up to at least
1000 psi.
Gun cable is disconnected or broken. Reconnect or replace cable.
Disconnected or broken wires from control
board to solenoid.
Reconnect or replace wires.
Gun triggering is slow
Gun cable is pinched or kinked. Change gun cable routing or replace cable.
System pressure is too low. Increase fluid pressure up to at least 1000 psi.
AUTO Mode
Line spacing is not accurate
Wrong line pattern loaded Reload the correct pattern.
Machine not calibrated Perform calibration routine (see Operation manual).
Gun does not trigger See Gun Does Not Trigger, page 48.
PARKING LAYOUT Mode
Gun does not apply dots
Gun selector switch is OFF Turn gun selector switch ON.
Dot size setting is too small Increase dot size.
Pressure is too low Increase pressure to 1000 psi.
* Use only Graco approved hydraulic fluid 169236 (5 gallons / 18.9 liter) or 207428 (1 gallon / 3.8 liter)
Problem Cause Solution
To Next Page
Loading...
