Repair ThermoLazer™ Pavement Marking System 313879B - For professional application of thermoplastic traffic marking compound materials (reflective beads applied simultaneously with screeding) - For outdoor use only (not to be operated in rain or damp conditions) Model No. 258699 North America - Includes 257500 and 4 in. (10 cm) SmartDie™ Screed Box Model No. 257500 International (SmartDie™ Screed Box not included) Fuel: LP Gas (Propane Vapor) Burner capacities (max total): 138,000 BTU/hr. (40.
Table of Contents Table of Contents Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Kettle Gas Safety Valve, Kettle Temperature Control, and Kettle Thermopile Diagnosis . . . . . . . . . . . . . . 5 Kettle Temperature Control Calibration . . . . . . . . . 6 Temperature Control Replacement . . . . . . . . . . . . 6 Thermometer Replacement . . . . . . . . . . . . . . . . . . 6 Kettle Thermometer Calibration .
Warnings Warnings The following are general warnings related to the safe setup, use, grounding, maintenance and repair of this equipment. In the text of this manual, the exclamation point symbol alerts you to a warning and the hazard symbol refers to specific risks. Refer back to these General Warnings pages. Additional procedure-specific warnings will be included where applicable.
Warnings Warnings TOXIC FLUID OR FUMES HAZARD Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or swallowed. • Read MSDS to know the specific hazards of the materials you are using. PERSONAL PROTECTIVE EQUIPMENT You must wear appropriate protective equipment when operating, servicing, or when in the operating area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic fumes, burns, and hearing loss.
Kettle Gas Safety Valve, Kettle Temperature Control, and Kettle Thermopile Diagnosis Kettle Gas Safety Valve, Kettle Temperature Control, and Kettle Thermopile Diagnosis Terminal Connections 3 TH TH TP The gas safety valve, temperature control and thermopile can be checked by using a millivolt meter. Before checking, make certain all electrical connections are clean and tight. 1 TP Connect millivolt meter to appropriate terminals (see Terminal Connections).
Kettle Temperature Control Calibration Kettle Temperature Control Calibration 6. If the temperature control setting is lower than the remote calibrated temperature setting on temperature probe, turn adjusting screw clockwise. Every 1/4 in. turn will change temperature 35° F (19.4° C). To Check Kettle Temperature Control Calibration: 1. Move Thermolazer™ to an area with no wind. 2. Turn temperature control to 400° F (204° C). 3. Agitate material for 4 to 5 minutes. ti14523a 4.
Kettle Thermometer Calibration Kettle Thermometer Calibration 6. If kettle thermometer is lower than the remote calibrated temperature probe, turn adjusting screw counterclockwise. Adjusting Screw To Check Kettle Thermometer Calibration: RESET 1. Move ThermoLazer™ to an area with no wind. 2. Turn temperature control to 400° F (204° C). 3. Agitate material for 4 to 5 minutes. 4.
Thermopile Replacement Thermopile Replacement Removal 1. Shut off gas valve on LP-tank and disconnect hose. 6. Pull thermopile wire out of gas safety valve enclosure (28). 28 ti4128a ti14854a 2. Remove gas safety valve enclosure back cover. 7. Cut wire tie. ti14851a 3. Remove cover (252) from gas safety valve enclosure (28). 8. Disconnect gas pilot line (76) at gas pilot coupling (171). 28 171 252 76 ti14856a ti14852a 4. Disconnect thermopile wires from gas safety valve (13). 9.
Thermopile Replacement Installation 1. Replace thermopile (7). 7. Connect thermopile wires to gas safety valve (13). See Parts manual 313880 for additional details. 7 13 ti14862a 2. Replace gas pilot mounting plate (18). ti14866a 8. Replace cover (252) on gas safety valve enclosure (28). 18 ti14863a 252 3. Connect gas pilot line (76) at gas pilot coupling (171). 171 28 ti14867a 9. Replace gas safety enclosure back cover. 76 ti14861a 4.
Adjust Gas Pressure to Kettle Burners Adjust Gas Pressure to Kettle Burners 1. Shut off kettle gas safety valve (CC). CC 2. Turn kettle temperature control knob (AA) to 0 (“OFF”). 3. Remove kettle gas safety valve 1/8-27 NPT pipe plug. 4. Screw 0 to 30 in. w.c. (0 to 7.47 cb) calibrated gas pressure gauge or manometer into kettle gas safety valve outlet. 5. Ignite kettle gas pilot burner. 148 ti14518a 6. Turn kettle gas safety knob (CC) to ON. 7. Turn kettle temperature control to 250° F (121° C). 8.
Adjust Kettle Pilot Burner Flame Adjust Kettle Pilot Burner Flame 1. Ignite kettle gas pilot burner. 2. Record pilot burner flame height and color. Flame should be 2 to 3 in. (5 to 7 cm) high and blue-orange in color. 3. Remove flame adjusting screw cap. ti14522a 4. Turn adjusting screw clockwise to decrease flame height (counterclockwise to increase flame height). 5. Install flame adjusting screw cap. 2 to 3 in. ti14413a Adjust Kettle Main Burners Flame 1. Ignite kettle gas pilot burner. 1 to 2 in.
Cleaning Kettle Main Burner Gas Lines Cleaning Kettle Main Burner Gas Lines 1. Disconnect gas tubing line (49) from gas tube fitting tee (165). 3. Reconnect gas tubing line (49) to gas tube fitting tee (165). 2. Force air into gas tubing line (49). Insert rubber hose over gas tubing tee and force air into tubing at 30 psi (2.1 bar). 165 ti14558a 49 Cleaning Kettle Pilot Burner Gas Lines 1. Disconnect gas tubing line (186) from gas tubing line (118). 3.
Replacing Screed Box Spring Replacing Screed Box Spring 1. Position replacement spring as shown below and slide into spring guard. 3. Set screed box on its side. ti14551a ti14553a 2. Push spring up through guard and loop end around guard pin until spring sits in groove. 4. Loop open end of spring and guard over first pin on screed box. Then push spring guard up and over second pin on screed box.
Securing Bead Dispenser Wheel Securing Bead Dispenser Wheel To properly dispense beads, drive wheel (27) must be in direct contact with tire (89). If drive wheel (27) becomes loose and/or starts to slip, use allen wrench to tighten set screw (211). NOTE: To ensure proper contact between drive wheel (27) and tire (89), make sure air pressure is always at 60 psi (4.14 bar).
Screed Box/Bead Dispenser Box Actuator Screed Box/Bead Dispenser Box Actuator If the screed box/bead dispenser box actuator does not remain in the “down and locked” position, adjust the 3/4-16 lock nut by turning clockwise 1/4 to 1/2 turn or until the actuator does not freely rotate. ti14604a Adjusting Screed Box Pivot Arm If the SmartDie™ screed box jumps up when setting the box in the down-and-locked position, check linkage rod lengths (see page 14). 3.
Troubleshooting Troubleshooting Problem Cause Kettle pilot burner does Low or empty LP-gas tank not ignite or does not Gas supply hose not connected to tank remain ignited LP-gas tank shut-off valve closed Solution Replace with full tank. Connect gas supply hose. Open LP-gas tank shut-off valve. Manual gas shut-off valve closed Open manual gas shut-off valve. Gas lines leaking or disconnected Check for gas leaks. Connect and tighten fittings.
Troubleshooting Problem Kettle main burners do not ignite or are not burning correctly Cause Solution Kettle gas safety valve knob not at correct position Turn knob to ON position (see Operation manual). Kettle temperature control dial set at a lower temperature than material temperature Turn kettle temperature control dial to temperature 25° F (13.9° C) higher than material temperature.
Troubleshooting Problem SmartDie™ screed box IR burner does not ignite, does not remain ignited, or can not change heat output Cause Empty LP-gas tank Solution 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 fittings. Not allowing time for IR burner thermocouple to sense heat See Operation manual.
Troubleshooting Problem Cause Solution SmartDie™ screed box Foreign material in screed box discharge opening leaking Dirty screed box Excessive material buildup when starting and stopping extruding CAREFULLY dislodge and remove foreign material. CAREFULLY clean box. All moving parts need to be free of debris. Spring broken Replace spring (see page 13). Incorrect deployment rod linkage length Adjust length (see page 14).
Troubleshooting Applying Material Problem Cause Ragged line edges when extruding Solution Dirty screed box CAREFULLY clean box. Discharge opening and die plate runners need to be free of debris. Cold material temperatures Heat material as required. Marking speed too fast Slow Thermolazer™ speed. Material thickness too think Slow Thermolazer™ speed and keep screed box filled. Rough material surface when extrud- Overheated material ing Moisture on road surface Reduce heat.
Troubleshooting Problem Cause Ragged edges and gaps in line Solution • Material temperature is too low • Raise material temperature • Thermolazer™ speed is too fast • Wait for change in ambient conditions to remove moisture • Reduce Thermolazer™ speed ti14511a Swollen rounded line • Material temperature is too high • Lower material temperature • Uneven road surface • Apply to even road surfaces • Die is not evenly riding on substrate • Remove debris from screed box lever rod ti14512a Mater
Technical Data Technical Data Fuel: Gas supply pressure (maximum): Kettle burner inlet pressure: IR burner inlet pressure: Torch inlet pressure: Kettle main burner heating capacity (maximum): Kettle pilot burner heating capacity (maximum): IR burner heating capacity (maximum): Torch heating capacity (maximum): Kettle holding capacity (maximum): Kettle Temperature (maximum): Kettle Temperature (operating): Tire pressure (rear wheels): Tire pressure (swivel wheel): Battery (Kettle Pilot Burner Igniter): Bead
Graco Standard Warranty Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.
All written and visual data contained in this document reflects the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice. This manual contains English. MM 313879 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Korea GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441 Copyright 2008, Graco Inc. is registered to I.S. EN ISO 9001 www.graco.
