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Troubleshooting
3A1320L
37
Screed box burner does
not ignite, does not
remain ignited, or can
not change heat output
Empty LP-gas tank
Replace with full tank.
LP-gas tank shut-off valve closed
Open LP-gas tank shut-off valve.
Gas supply hose not connected to tank
Connect gas supply hose.
Gas lines leaking or disconnected
Check for gas leaks. Connect and tighten fit-
tings.
Burner regulator/flow flame adjusting valve not
functioning correctly
Replace part (see
Parts
manual).
Burner orifice plugged
Clean or replace part (see
Parts
manual).
Burner assembly not functioning correctly.
Replace part (see
Parts
manual).
Torch does not ignite
Empty LP-gas tank
Replace with full tank.
LP-gas tank shut-off valve closed
Open LP-gas tank shut-off valve.
Torch manual gas shut-off valve closed
Open manual shut-off valve.
Gas supply hose not connected to tank
Connect gas supply hose.
Gas lines leaking or disconnected
Check for gas leaks. Connect and tighten fit-
tings.
Torch assembly not functioning correctly
Replace part (see
Parts
manual).
Agitator crank handle is
hard to move
Material is cold
Allow time for material to reach operating
temperature.
Bushings are worn
Replace bushings (see
Parts
manual).
Linkage ball rod ends need lubrication
Add grease.
Foreign material lodged between agitator and
kettle
Remove material in kettle and
CAREFULLY
dislodge and remove foreign material.
ControlFlow
™
gate valve
difficult to open
or close
Cold material temperature
Heat material to operating temperature.
Make sure thermometer is free to move.
Gate sticking in guides
Check for excess material in guides. Apply
heat as required and remove excess mate-
rial. Add grease to lubricate guides.
Bushings are worn
Replace bushings (see
Parts
manual).
ControlFlow gate valve
leaking
Gate not completely closed
Close gate completely.
Foreign material lodged in gate opening
CAREFULLY
dislodge and remove foreign
material.
Screed box leaking
Foreign material in screed box discharge open-
ing
CAREFULLY
dislodge and remove foreign
material.
Dirty screed box
CAREFULLY
clean box. All moving parts
need to be free of debris.
Incorrect deployment rod linkage length
Incorrectly adjusted screed box/bead dispenser
box actuator
Worn screed box shear bar
Replace gate (see
Parts
manual).
Worn screed box shear bar stop
Replace trough (see
Parts
manual).
Excessive material
buildup when starting
and stopping extruding
Screed box not adjusted to ground
See
Operation
manual.
Screed box open when ThermoLazer is
stationary
Synchronize ThermoLazer and screed box
motion.
Foreign material in screed box discharge open-
ing
CAREFULLY
dislodge and remove foreign
material.
Dirty screed box
CAREFULLY
clean box. All moving parts
need to be free of debris.
Problem
Cause
Solution