Graco ThermoLazer 258699 Repair Manual page 18

Troubleshooting
Problem
™ Empty LP-gas tank
SmartDie screed box
IR burner does not LP-gas tank shut-off valve closed
ignite, does not remain
Gas supply hose not connected to tank
ignited, or can not
Gas lines leaking or disconnected
change heat output
Not allowing time for IR burner thermocouple
to sense heat
IR burner regulator/flow control valve not func-
tioning correctly
IR burner safety shut-off valve not functioning
correctly
IR burner thermocouple not functioning cor-
rectly
Torch does not ignite Empty LP-gas tank
LP-gas tank shut-off valve closed
Torch manual gas shut-off valve closed
Gas supply hose not connected to tank
Gas lines leaking or disconnected
Torch assembly not functioning correctly
™ Material is cold
PaddleMax agitator
handle is hard to move
Bushings are worn
Linkage ball rod ends need lubrication
Foreign material lodged between agitator and
kettle
™ Cold material temperature
ControlFlow gate
valve difficult to open
or close
Gate sticking in guides
Bushings are worn
™ Gate not completely closed
ControlFlow gate
valve leaking
Foreign material lodged in gate opening
18
Cause
Get other manuals https://www.bkmanuals.com
Solution
Replace with full tank.
Open LP-gas tank shut-off valve.
Connect gas supply hose.
Check for gas leaks. Connect and tighten
fittings.
See Operation manual.
Replace part (see Parts manual).
Replace part (see Parts manual).
Replace part (see Parts manual).
Replace with full tank.
Open LP-gas tank shut-off valve.
Open manual shut-off valve.
Connect gas supply hose.
Check for gas leaks. Connect and tighten
fittings.
Replace part (see Parts manual).
Allow time for material to reach operating
temperature
Replace bushings (see Parts manual).
Add grease
Remove material in kettle and CARE-
FULLY dislodge and remove foreign mate-
rial.
Heat material to operating temperature.
Make sure thermometer is free to move.
Check for excess material in guides. Apply
heat as required and remove excess mate-
rial. Add grease to lubricate guides.
Replace bushings (see Parts manual).
Close gate completely.
CAREFULLY dislodge and remove foreign
material.
313879B