Graco TapeLazer HP Automatic Operation, Parts page 44

Troubleshooting
Problem
Unit won't activate (application roller will
not drop down).
Tape is spooling off roll too fast.
Actuates, but won't deploy tape.
Control board and display will not start
up (red LED on control board not flashing
while engine is running).
Will not lay tape.
Control display is blank, will not light up.
Engine stop switch will not kill engine.
No button response.
Unit actuates, but there is no secondary
position.
44
Cause
Tape line type not selected.
Carriage is in the raised position.
Low system pressure.
Mechanically jammed.
Solenoids damaged.
Tape roll not tensioned properly.
Taping too fast.
Tape is not fed far enough through the
rollers.
Inlay groove too deep.
Tape is curled in front of guide rods.
No power to board.
Control board faulty.
Wiring harness is faulty.
Carriage is in the raised position.
Tape line type not selected.
Bad connection between control display
and control board.
Red connector tapped to engine line is
disconnected.
Unit not grounded.
Tape application button not connected.
Control board output #2 is open.
Solution
Select "solid" or "skip" tape line type, see
Modes of Operation, page 23.
Lower carriage. See Tape Application
Assembly Positions, page 24, for infor-
mation on carriage positions.
Check for air leaks, see System is not
holding pressure/not generating pres-
sure, page 49.
Check for obstructions in taping applica-
tion assembly.
Check solenoids and replace if neces-
sary. Refer to unit error screen. See
Information, page 38 and Solenoid
Manifold Operation, page 46.
Press tape collar (with red tension ring)
into the tape roll prior to tightening
clamp.
Slow down.
Ensure tape is sticking down appropriate
distance. See Loading Tape, page 10.
Adjust rollers to fit into groove. See
Roller Adjustment, page 11.
Adjust guide rods back, see Carriage
Applicator Parts, page 56.
With engine running, check voltage to
control board at red and red/white wires.
See Wiring Diagram, page 64. If voltage
is present, replace board. If no voltage,
check for voltage from gray engine leads
where red and white/red wires connect. If
not voltage there, consult Honda engine
owner's manual. If voltage exists there,
replace wiring harness.
Release carriage locking pins and pivot
carriage down. See Tape Application
Assembly Positions, page 24, for infor-
mation on carriage positions.
Select solid or skip line. See Modes of
Operation, page 23.
Check for loose or faulty connection
between control board and control dis-
play.
Replace control display.
Check for good connection to black
engine wire, see Wiring Diagram, page
64.
Check for proper grounding from engine
to frame, see Wiring Diagram, page 64.
Check for faulty connection. Replace
button if necessary.
Check for faulty connection to main
board and any broken wires. Replace
solenoid if necessary. Refer to unit error
screen, see Information, page 38.
3A8108A