Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.
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Warnings WARNING SKIN INJECTION HAZARD High-pressure fluid from hose leaks, or ruptured components will pierce skin. This may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment. • Inspect hose before each use for cuts, bulges, kinks or any other damage. •...
Warnings Gasoline/Propane Engine Warnings WARNING FIRE AND EXPLOSION HAZARD -- GASOLINE Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help pre- vent fire and explosion: • Use equipment only outdoors. Never use indoors or in enclosed spaces. •...
Warnings Electric Motor Warnings DANGER SEVERE ELECTRIC SHOCK HAZARD This equipment is powered by more than 240 V. Contact with this voltage will cause death or serious injury. • Turn off and disconnect power cord before servicing equipment. • Connect only to grounded electrical outlets. •...
Setup Setup Propane Tank Lifting Instructions Propane (LP gas) supply tank not provided by Graco. • Only lift the equipment using all available lift points. Supply tank must be vertically mounted and vapor The lift chains must be angled at least 45° from the withdrawal type.
Setup Handlebar Adjustment Engine Kill Button (Gas/Propane) The handlebars are equipped with a high-density In the event of a malfunction or an accident (such as the vibration suppression material to reduce operator machine operator falling or losing footing), the fatigue. To adjust the handlebars to a new position for GrindLazer is equipped with a corded Engine Kill Button.
Setup Drum Installation/Replacement 4. Remove six hex head cap screws from the Side Plate using the 9/16” socket or wrench. 5. Remove the Side Plate (this may require the rubber mallet to break it loose). Gas/Propane: To avoid injury from unexpected start 6.
Setup DCS Control Zero Button Buttons on the DCS Control have two functions, quick press and long press. Quick press refers to pressing the Quick Press: Takes the drum to the work surface. button and releasing the button quickly, while long press is pressing the button and holding the button for two or more seconds.
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Setup Cut Depth Button Up Arrow Button* Quick Press: Raises the drum by 0.01” (0.25mm, 10 Quick Press: Takes the drum to the Cut Depth Target. mil). Long Press: Raises the drum to Home position. Long Press: If at or above zero point: Opens new screen to select desired cut depth using up/down buttons.
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Setup Menu Screens Menu Screen #3 - Model Select Your GrindLazer model name can be found on the han- To display the Menu Screens, hold down Home Button dlebar dashboard label. Select the model on the DCS from the Run Screen. To save menu settings and return Control which matches the model you have.
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Setup Menu Screen #5 - Error Codes Error Codes E04: High Voltage Displays the most recent error code and the total num- E05: High Motor Current ber of times that error has occurred. Cycle through pre- E08: Low Voltage vious error codes using Up/Down Buttons. E09: Hall Sensor Error E12: High Current (short circuit) E31: Home Button Error...
Operation Operation If the Engine Does Not Start • Turn the ON/OFF Switch on the Control Panel to ON. • Check engine for proper gas and oil levels. • Check the spark plug. Make sure socket areas are clean and clear of debris, and the proper gap is set. Do not start machine while cutter head is in contact Replace if needed.
The drum assembly must be removed daily and inspected for drum wear, hole elongation and possible weld separation. Replace the cutter shafts every 40 hours, or prior to any drum wear. If the drum’s center holes are elongated, order another Graco cutter drum. 3A7600C...
Operation DCS Instructions Set Cut Depth Target: Quick press the Zero Button to take the drum to the work Each time the DCS Control is turned on, the DCS actua- surface. Set the Cut Depth Target by: tor will travel to the Home position. 1.
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Operation The DCS Control is now ready to grind/scarify. 3. Insert 6mm hex key into the port the screw plug was removed from. NOTE: The Zero Point and Cut Depth are referenced • One revolution of the hex key results in 1/16” (1.6 from the Home position.
Repair Repair 3. Clean the exterior of the machine so you can locate all of the appropriate parts. 4. Using a 9/16” socket or wrench, remove the four hex Gas/Propane: To avoid injury from unexpected start bolts attaching the belt cover to the side of the up, disable engine as follows: 1) Turn DCS Power machine.
Repair 7. Put the belt cover back in place and secure the four 4. To tighten the belt, slide the bracket up and lightly hex nuts with the 9/16” socket or wrench. tighten the hex bolts. To ensure alignment of the pulleys, use a ruler or a straight edge and place it on the faces of both pulleys and adjust the bracket Deflection...
Repair Bearing Housing Replacement 5. With the shaft rotation locked, use the 7/32” hex key to remove the two set screws on the drive pulley. Once removed, insert one of the set screws into the Tools needed: hole directly above the keyway to back out the bushing.
Repair Drive Pulley Replacement Electric Models Standard Speed: Use the 48-tooth pulley on the motor The drive pulleys must be replaced to change between shaft and the 56-tooth pulley on the drum shaft with the high speed and standard speed. 1200 mm belt.
Maintenance Checklist Maintenance Checklist • Maintain proper engine oil and crankcase levels. Change every 25-50 hours (see Kohler manual). • Clean spark plugs regularly, and set the proper gap Gas/Propane: To avoid injury from unexpected start (see Kohler manual). up, disable engine as follows: 1) Turn DCS Power Switch OFF.
Maintenance Checklist Purge Procedures 2. With the bypass valve closed and the engine/motor running, slowly move the directional control in both forward and reverse directions 5 to 6 times. Check the Due to the effects air has on efficiency in hydrostatic drive oil level, and add hydraulic fluid as required after applications, it is critical that air is removed or purged from stopping engine/motor.
Recycling and Disposal Recycling and Disposal Rechargeable Battery Disposal End of Product Life Do not place batteries in the trash. Recycle batteries At the end of the product’s useful life, dismantle and according to local regulations. In the USA and Canada, recycle it in a responsible manner.
DCS Control Translations DCS Control Translations English Español Français Deutsche International FINDING HOME ENCONTRANDO INICIO TROUVER LE DÉBUT START FINDEN HOME INICIO START DÉBUT DEPTH ALTURA TIEFE HAUTEUR TARGET OBJETIVO ZIEL OBJECTIF ZERO CERO NULL ZÉRO SEL MODEL MODELO MODELL MODELE LANGUAGE IDIOMA...
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DCS Control Translations English Español Français Deutsche International FREQUENCY FRECUENCIA ANZHAL FRÉQUENCE HIGH CURRENT ALTA CORRIENTE HOHER STROM COURANT ÉLEVÉ LOW VOLTAGE BAJO VOLTAJE NIEDERSPANNUNG BASSE TENSION HIGH VOLTAGE ALTO VOLTAJE HOCHSPANNUNG HAUTE TENSION HALL SENSORS SENSORES DE HALL HALL-SENSOREN CAPTEURS DE HALL HOME BUTTON BOTÓN DE INICIO...
Troubleshooting Troubleshooting Gas/Propane: To avoid injury from unexpected start up, disable engine as follows: 1) Turn ignition OFF. 2) Disconnect spark plug wires. 3) Disconnect negative (-) battery cable from battery. Electric: To avoid injury from unexpected start up, disconnect power plug before you service your machine.
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Troubleshooting Problem Cause Solution Pulley is misaligned Re-align pulley Drive belt wearing prematurely Wrong belt Order new belt Hydraulic fluid level may be low Ensure hydraulic fluid level reservoir is filled to the proper level V-belt to hydraulic pump is slipping or dam- Check V-belt, replace if damaged Machine will not move in forward aged...
Troubleshooting DCS Error Codes To clear an error code on the DCS Control: 1. Turn DCS Power Switch to OFF. 2. Address/Fix the issue. 3. Turn DCS Power Switch to ON. Error Cause Solution E04: High Voltage Battery is damaged. Replace battery.
Troubleshooting DCS Actuator Rod Does Not Move Use this flow chart if the DCS Actuator Rod does not move or if the DCS displays error code E09 (Hall Sensor Error). Reference Wiring Diagram, page 68. Turn power switch to OFF. Remove the blue shroud behind the DCS Control. Ensure you have a good 12V battery installed.
Parts - Main Housing Assembly (All Models) Parts - Main Housing Assembly (All Models) Torque to 23-27 ft-lbs (31.2-36.6N·m) Torque to 40 ft-lbs (54.2 N·m) Torque to 90-110 in-lbs (10.2-12.4 N·m) ti38091a 3A7600C...
Parts - Main Housing Assembly (All Models) Parts List - Main Housing Assembly (All Models) Ref. Part Description Qty. Ref. Part Description Qty. 18B352 STRIPS, front, brush 18B284 PLATE, side 107139 BOLT, carriage, 1/4”-20x1” 18B345 SKIRT, fixed, left side 17W021 WASHER, fender, bend, 1/4 x 1” 18B370 PLATE, retaining, left skirt 102040...
Parts - Support System / Hydraulic Tank (All Models) Parts - Support System / Hydraulic Tank (All Models) Torque to 23-27 ft-lbs (31.2-36.6N·m) Torque to 90-110 in-lbs (10.2-12.4 N·m) ti38098a ti38099a 3A7600C...
Parts - Support System / Hydraulic Tank (All Models) Parts List - Support System / Hydraulic Tank (All Models) Ref. Part Description Qty. Ref. Part Description Qty. 110838 NUT, nylock, 5/16”-18 17W020 WASHER, flat, 1/4” 124227 SCREW, hex, 5/16”-18 x 1” 100023 WASHER, flat, 3/8”...
Parts - Pulley Assemblies (Gas) Parts List - Pulley Assemblies (Gas) High Speed (Model 25P474) Ref. Part Description Qty. Ref. Part Description Qty. 18A501 SCREW, socket head cap, 100023 WASHER, flat, 3/8” 5/8-18 x 1” 100133 WASHER, lock, 3/8” 19C103 BELT 100101 SCREW, hex, cap, 3/8-16 x 1”...
Technical Data Technical Data DC1538 G DCS (Models 25P474 / 25R100) Maximum Working Pressure 1750 psi 121 bar, 12.1 MPa Noise level (dBa) Sound power 107 dBa per ISO 3744 Sound pressure 91 dBa measured at 3.1 feet (1m) Vibration level* Right/Left Hand 14.5 m/sec * Vibration measured per ISO 5349 based on 8 hour daily exposure...
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Technical Data California Proposition 65 CALIFORNIA RESIDENTS WARNING: Cancer and reproductive harm – www.P65warnings.ca.gov. 3A7600C...
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.