Graco ThermoLazer 258699 Repair Manual page 19

Problem
™ Foreign material in screed box discharge
SmartDie screed box
opening
leaking
Dirty screed box
Spring broken
Incorrect deployment rod linkage length
Incorrectly adjusted SmartDie
box/bead dispenser box actuator
Worn screed box gate
Worn screed box trough
Excessive material Screed box not adjusted to ground
buildup when starting
Screed box open when ThermoLazer
and stopping extruding
stationary
Foreign material in screed box discharge
opening
Dirty screed box
Beads not discharging Low bead level in bead hopper
or discharging unevenly
Bead dispenser doors closed
Bead dispenser drive wheel not engaged
Bead dispenser drive wheel slipping
Debris in discharge opening of bead dispenser Remove debris.
Debris on ThermoLazer
penser wheel
Moisture in beads
Beads not discharging Bead dispenser flow rate lever not correctly
at required flow rate set
Bead dispenser drive wheel slipping
Bead dispenser doors not fully open
Moisture in beads
Moisture on road surface
Rough road surface
Bead Dispenser low on material
313879B
Cause
™
screed
™
tire or bead dis-
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CAREFULLY dislodge and remove foreign
material.
CAREFULLY clean box. All moving parts
need to be free of debris.
Replace spring (see page 13).
Adjust length (see page 14).
Adjust lever (see page 14).
Replace gate (see Parts manual 313880).
Replace trough (see Parts manual
313880).
See Operation manual.
™
is Synchronize ThermoLazer
box motion.
CAREFULLY dislodge and remove foreign
material.
CAREFULLY clean box. All moving parts
need to be free of debris.
Fill bead hopper.
Open doors as required to obtain desired
flow pattern width.
Secure bead dispenser wheel (see page
14).
Tighten. Check air pressure (see page 14).
Remove debris.
Remove wet beads. Dry hopper, bead
hoses and bead dispenser. Fill hopper with
dry beads.
Rotate flow rate lever to correct position.
Tighten wheel and check tire pressure
(see page 14).
Open door fully.
Remove wet beads. Dry hopper, bead
hoses and bead dispenser. Fill hopper with
dry beads.
Allow road surface moisture to dry.
Smooth road surface.
Add material to Bead Hopper.
Troubleshooting
Solution
™
and screed
19