Screed Box. Graco 3A1319C - ThermoLazer and ThermoLazer ProMelt Pavement Marking Systems

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Screed Box. Graco 3A1319C - ThermoLazer and ThermoLazer ProMelt Pavement Marking Systems | Manualzz

Screed Box

Screed Box

Installation

5.

Engage screed box rod into screed box lever.

Use extreme caution when installing and removing screed box. Expect all equipment components and material to be extremely hot. See MSDS for Thermoplastic Traffic Marking Compound.

1.

Shut off front and rear screed box burners.

ti14268a

6.

Align hole of rod clevis with connecting hole in screed box yoke and install hairpin cotter pin.

ti16833a

2.

Open screed shroud door.

ti14140a

3.

Move screed box actuator out of full raised locked position.

ti17300a

7.

Close and lock screed shroud door.

8.

Re-light screed box burners as required (see

Screed Box Burner Lighting, page 15).

Removal

1.

Shut off screed box burner.

ti14267a ti16833a

2.

Open screed shroud door.

4.

Slide screed box under screed shroud and press down on screed box lever. ti14140a

3.

Set screed box on ground but not in locked open position.

ti16846a ti14267a

3A1319C 17

Screed Box

4.

Remove hairpin cotter pin connecting screed box to rod clevis.

Adjustment

The height and angle of the screed box can be adjusted to ensure a solid line of material on any surface. For optimum delivery of thermoplastic material, make sure the screed box runner is adjusted as described.

1.

Loosen two bolts on screed box mounting bracket.

ti17300a

5.

Press down screed box lever.

ti16839a ti16835a

2.

Slide mount down until leading box edge of screed box runner is just off of the ground surface. For best performance, raise leading edge .020 in. (0.5 cm) off ground surface. Scraper blade may be used to set this depth.

6.

Disengage screed box rod from screed box lever and carefully remove screed box.

ti16840a

Make sure to use two hands when picking up screed box. Place one hand on yoke and one hand on rod.

Screed Box

20 mil

.020˝

0.5 mm ti17047a

Do NOT pick up screed box with one hand and/or at one location.

Screed Box Runner ti17045a

3.

Tighten bolts on screed box mounting bracket.

18 ti17048a ti16841a

4.

Spring position may be moved to a different hole.

The farthest holes provide greatest force to close the gate.

3A1319C

Screed Box

Screed Box Line Thickness

Adjustment

X

X

mil # Turns

30

60

90

120

150

0.6

1.2

1.8

2.4

3.0

mm # Turns

0.5

1.0

1.5

2.0

0.4

0.8

1.2

1.6

ti17046a

NOTE: 1/4 turn will change line thickness by .013 in.

(0.3 mm). Turn the line adjustment screw clockwise for a thinner line, or counterclockwise for a thicker line.

Typical settings on pavement: 0.060 - 0.125 in.

(0.153 - 0.318 cm).

Typical settings on metal stencil: Flush - 0.0 in. (0.0 cm).

1.

Move screed box actuator to middle position. Make sure screed box is closed and resting on the ground.

NOTE: All screed boxes are initially set at 90 mil

(1.8 mm). Please adjust before first use.

2.

Use a flat screwdriver to turn line adjustment screw clockwise so that line thickness is zero.

3.

Turn line adjustment screw counter-clockwise until desired line thickness is reached.

4.

Measure line thickness after applying thermoplastic and adjust as necessary.

3A1319C 19

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