1. Manuals
  2. Brands
  3. Graco Manuals
  4. Lawn and Garden Equipment
  5. GrindLazer 25M992
  6. Repair manual

Graco GrindLazer 25M992 Repair Manual

Hide thumbs Also See for GrindLazer 25M992:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Operating Manual
Repair
GrindLazer
For removal of materials from flat horizontal concrete and asphalt surfaces. For
professional use only.
Model 25M992 - Forward cut
GrindLazer HP DC89 G (270 cc / 9 hp)
Model 25M993 - Forward cut
GrindLazer HP DC1013 G (390 cc / 13 hp)
Model 25M994 - Reverse up-cut (Must be used with LineDriver
+
GrindLazer HP DC1021 G (627 cc / 21 hp Electric Start)
IMPORTANT SAFETY INSTRUCTIONS
Read all warnings and instructions in this manual and in the
Operation and Parts Manuals before using the equipment. Be
familiar with the controls and the proper usage of the
equipment. Save all instructions.
GrindLazer HP DC89 G and
GrindLazer HP DC1013 G
™
(Drums, cutters, and LineDriver ™ sold separately)
www.graco.com/techsupport
™
)
GrindLazer HP DC1021 G
3A5919A
EN
Related Manuals:
Operation - 3A5918
Parts - 3A5929

Advertisement

Table of Contents
loading

Related Manuals for Graco GrindLazer 25M992

Summary of Contents for Graco GrindLazer 25M992

  • Page 1 Operation - 3A5918 equipment. Save all instructions. Parts - 3A5929 GrindLazer HP DC1021 G GrindLazer HP DC89 G and GrindLazer HP DC1013 G (Drums, cutters, and LineDriver ™ sold separately) www.graco.com/techsupport...

  • Page 2: Table Of Contents

    Graco Standard Warranty ........

  • Page 3: Warnings

    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.

  • Page 4: Battery Disposal

    Warnings WARNING FIRE AND EXPLOSION HAZARD 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 in well ventilated area. • Do not fill fuel tank while engine is running or hot; shut off engine and let it cool. Fuel is flammable and can ignite or explode if spilled on hot surface.

  • Page 5: Component Identification

    Component Identification Component Identification DC89 G and DC1021 G Model DC1013 G Models Component Description Engine Throttle Lever Adjusts engine speed. Engine Power Switch Supplies power to Engine Engine Kill Button Clamps onto the operator and shuts engine off if cord is disconnected during operation.

  • Page 6: Drum Replacement

    Drum Replacement Drum Replacement 1. Slide replacement drum onto hex shaft. Avoid touching or handling drum after use until it has completely cooled. To avoid injury from unexpected start up, disconnect spark plug wire and black battery cable (DC1021 G only) before you service your unit. Removal ti14766a 2.

  • Page 7: Cutter Replacement

    Avoid touching or handling drum after use until it has completely cooled. Different drum configurations can be used for different applications. Visit www.graco.com/drumassembly for instructions on how to assemble various drum configurations. Removal (Carbide Flail/Carbide Miller) 1. Remove drum (see Drum Replacement, page 6).
  • Page 8 Cutter Replacement Removal (Diamond Blades) Installation (Diamond Blades) 1. Remove drum (see Drum Replacement, page 6). 1. Replace all spacers and diamond blades in the sequence and orientation shown below (blades 2. Place drum in vise. should be rotated in alternating segments when stacking).

  • Page 9: Belt Replacement

    Belt Replacement Belt Replacement 4. Tighten bottom bolt to lower pulley plate. To avoid injury from unexpected start up, disconnect spark plug wire and black battery cable (DC1021 G only) before you service your unit. Removal 1. Remove three nuts and washers. Remove belt shroud.
  • Page 10 Belt Replacement Installation 1. Install new belt. Belt Tension Recommendations: 3VX355 Belt DC89 DC1013 DC1021 Tension (Lbf) 145 +/- 5 193 +/- 7 194 +/- 7 Belt Frequency (Hz) 91 +/- 2 105 +/- 2 105 +/- 2 Used Tension (Lbf) 125 +/- 5 167 +/- 7 167 +/- 7...

  • Page 11: Clutch Replacement

    Clutch Replacement Clutch Replacement Installation 1. Install clutch. To avoid injury from unexpected start up, disconnect spark plug wire and black battery cable (DC1021 G only) before you service your unit. Removal 1. Remove belt guard and belt (see Belt Replacement, page 9).

  • Page 12: Pulley Replacement

    Pulley Replacement Pulley Replacement Installation 6. Install pulley onto hex shaft. To avoid injury from unexpected start up, disconnect spark plug wire and black battery cable (DC1021 G only) before you service your unit. Removal 1. Remove drum (see Drum Replacement, page 6). 2.

  • Page 13: Brush Replacement

    Brush Replacement Brush Replacement Installation 1. Install new brush. To avoid injury from unexpected start up, disconnect spark plug wire and black battery cable (DC1021 G only) before you service your unit. Removal 1. Remove two mounting bolts. ti15078b 2. Tighten two mounting bolts. ti15072b 2.

  • Page 14: Drive Bearing Assembly Replacement

    Drive Bearing Assembly Replacement Drive Bearing Assembly Replacement To avoid injury from unexpected start up, disconnect spark plug wire and black battery cable (DC1021 G only) before you service your unit. Door Bearing Assembly ti17815a Removal 4. Tighten four nuts on bearing assembly to secure it into place.

  • Page 15: Drive Bearing Assembly Removal

    Drive Bearing Assembly Replacement Drive Bearing Assembly c. Remove sheave. Removal 1. Remove door from unit and remove any cutting drum on machine. ti14767b ti15126a d. Remove set screw from bushing. ti14765a 2. Remove belt guard and belt (see page 9). 3.

  • Page 16: Drive Bearing Assembly Installation

    Drive Bearing Assembly Replacement Sheave Installation 5. Slide shaft assembly out of holes. 1. Insert bushing onto drive shaft. Make sure key is in place. ti15125b ti15146a Drive Bearing Assembly 2. Apply thread sealant to set screw and install set Installation screw into bushing.

  • Page 17: Diamond Blades

    Drive Bearing Assembly Replacement Diamond Blades Number of Number of For best performance, use 1/4 in. spacers on each end of Groove Number Steel 1/8 in. Aluminum 1/4 shaft to center diamond blades on drum. Width of Blades Spacers in. Spacers 1 in.

  • Page 18: Troubleshooting

    Troubleshooting Troubleshooting To avoid injury from unexpected start up, disconnect spark plug wire and black battery cable (DC1021 G only) before you service your unit. Problem Cause Solution Engine will not start Engine switch is OFF. Turn engine switch ON. Engine is out of gas.

  • Page 19: Technical Data

    Technical Data Technical Data GrindLazer HP DC89 G (Model 25M992) Dimensions Unpackaged Packaged Height in./cm: 46 (116.8) 50.5 (128.3) Width in./cm: 28 (71.1) 37 (94.0) Length in.cm: 62 (157.5) 73 (185.4) Weight lb/kg: 300 (136) 400 (181) Noise (dBa) Sound Power per ISO 3744: 107.3 Sound Pressure measured at 3.1 feet (1m): 91.6...

  • Page 20: Graco Standard Warranty

    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.

This manual is also suitable for:

Grindlazer 25m994Grindlazer 25m993

Table of Contents