Smith LNX8 Series Operation - Repair - Parts
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Smith LNX8 Series Operation - Repair - Parts

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Operation, Repair, Parts
SMITH LNX8
For removal of materials from flat horizontal concrete and asphalt surfaces.
For professional use only.
Pro Series - Rotary Cut
LNX8 Rotary Eraser (390 cc / 13hp Electric Start)
LNX8 Rotary Eraser (390 cc / 13hp Electric Start) (Series B)
LNX8 Rotary Eraser DCS (390 cc / 13hp Electric Start)
Important Safety Instructions
Read all warnings and instructions in this manual before using the
equipment. Be familiar with the controls and the proper usage of the
equipment. Save these instructions.
LNX8
™
LNX8 (Series B)
3A6354A
EN
LNX8 DCS

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Summary of Contents for Smith LNX8 Series

  • Page 1 Operation, Repair, Parts ™ SMITH LNX8 3A6354A For removal of materials from flat horizontal concrete and asphalt surfaces. For professional use only. Pro Series - Rotary Cut LNX8 Rotary Eraser (390 cc / 13hp Electric Start) LNX8 Rotary Eraser (390 cc / 13hp Electric Start) (Series B)

  • Page 2: Table Of Contents

    SMITH 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 LNX8 ti33805a Component Component Engine Handlebar Electric Start Engine Switch Cutter Head Engage Lever Engine Throttle Handlebar Adjustment Bolts Engine Kill Button Cutter Head Adjustment Dial Pressure Indicator Pressure Control Dial Wheel Stop Dust Skirt Hour Meter / Tachometer Vacuum Port 3A6354A...

  • Page 6: Component Identification

    Component Identification Component Identification LNX8 (Series B) Component Component Engine Handlebar Electric Start Engine Switch Cutter Head Engage Lever Engine Throttle Handlebar Adjustment Bolts Engine Kill Button Cutter Head Adjustment Dial Pressure Indicator Pressure Control Dial Wheel Stop Dust Skirt Hour Meter/Tachometer Vacuum Port 3A6354A...

  • Page 7: Component Identification

    Component Identification Component Identification LNX8 DCS Component Component Engine Kill Button Handlebar Pressure Indicator Power Switch Wheel Stop Handlebar Adjustment Bolts Hour Meter/Tachometer DCS Control Home Button Pressure Control Dial Zero Button Dust Skirt Cut Depth Button Vacuum Port Up/Down Buttons Engine Manual Height Adjustment Electric Start Engine Switch...

  • Page 8: Setup

    Setup Setup Handle Bar Adjustment Cutter Head Installation/Replacement The handlebars are equipped with a high-density vibration suppression material to reduce operator fatigue Normal use will require periodic cutter head inspection when operating equipment. To adjust the handlebars to and may necessitate cutter replacement. Time of a new position for different height operators please follow replacement will vary according to usage and load these steps:...
  • Page 9 Setup 3. Non-DCS Models: Rotate Cutter Head Engage 5. Unhook spring from the spring plunger (bottom rear Lever to upwards position to release lower linkage section of machine). from inner frame. 6. Rotate the inner frame upwards to gain access to the cutters.
  • Page 10 Setup 8. Install the new cutter assembly onto the machine by 10. Connect the spring to the spring plunger. spinning clockwise. Cutters will lock onto the machine once surface removal is started. 11. Lower the lower linkage into the slot in the inner frame by rotating the Cutter Head Engage Lever (non-DCS models), or by using the Down Button on the DCS Control (DCS models).

  • Page 11: Dust Control

    Setup Dust Control Vacuum Attachment 1. If using a vacuum, attach vacuum hose to the 2. Attach vacuum hose to the Inlet Port on the Cyclone Vacuum Port. Separator (optional) or vacuum. 3A6354A...

  • Page 12: Dcs Control (Dcs Models Only)

    Setup DCS Control (DCS Models only) Buttons on the DCS Control have two functions, quick Zero Button press and long press. Quick press refers to pressing the Quick Press: Takes the cutter head to the surface. button and releasing the button quickly, while long press is pressing the button and holding the button for two or more seconds.
  • Page 13 Setup Cut Depth Button Up Arrow Button* Quick Press: Raises the cutter head by 0.01” (0.25mm, Quick Press: Takes the cutter head to the Cut Depth Tar- 10 mil). get. Long Press: Raises the cutter head to Home position. Long Press: If at or above zero point: Opens new screen to select desired cut depth using up/down buttons.
  • Page 14 Setup Menu Screens Menu Screen #3 - Model Select Your LNX8 model name can be found on the handlebar To display the Menu Screens, hold down Home Button dashboard label. Select the model on the DCS Control from the Run Screen. To save menu settings and return which matches the model you have.
  • Page 15 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 occured. Cycle through previ- E08: Low Voltage ous error codes using Up/Down Buttons. E09: Hall Sensor Error E12: High Current (short circuit) E31: Home Button Error...

  • Page 16: Operation

    Operation Operation Do not start machine while cutter head is in contact with the ground. Doing so can cause the operator to lose control of the machine, resulting in property damage and/or personal injury. Machine Start Up Before starting engine, perform the following: •...

  • Page 17: Cutting Material

    Operation Cutting Material 5. Move the machine away from the current position to inspect the cut. Use the elevation screws in the front of the machine to pitch the cutter to the correct plane to create the desired cut pattern. Loosen bolts A and B, then adjust bolt C to modify the cutter head angle.
  • Page 18 Operation Concrete Cutting Setup 3. The cutting mark left by the machine should be an even circle. The machine set-up required when cutting concrete is as follows: 1. Cutters should be parallel to the ground when engaged. 2. Use the Pressure Control Dial to set the Pressure Indicator to 0-1.
  • Page 19 Operation 2. Use the Pressure Control Dial to set the Pressure Cutting Technique Indicator to 2-3. These are recommended settings only. Increasing spring tension, depth of cut and pitch will increase the removal speed at the expense of reduced life and surface finish.

  • Page 20: Stop Cutting Material

    Operation Stop Cutting Material 2. Adjust Engine Throttle to low setting. 1. Non-DCS Models: Raise Cutter Head Engage Lever so that the cutter head is off the ground. 3. Depress Engine Kill Button. 4. Clean the entire exterior of the machine after it has cooled.

  • Page 21: Dcs Instructions

    Operation Set Cut Depth Target: DCS Instructions Quick press the Zero Button to take the cutter head to the pavement surface. Set the Cut Depth Target by: Each time the DCS Control is turned on, the DCS actua- tor will travel to the Home position. 1.
  • Page 22 Operation The DCS Control is now ready to grind/scarify. Long 3. Insert 6mm hex key into the port the screw plug was press down on the Handlebar Rocker Switch to lower removed from. the cutter head to your Cut Depth Target. Short press up One revolution of the hex key results in 0.10”...

  • Page 23: Maintenance

    Maintenance Maintenance AFTER THE FIRST 20 HOURS OF OPERATION: • Drain engine oil and refill with clean oil. See engine Avoid touching engine and cutter head after use until manual for correct viscosity. they have completely cooled. To avoid injury from unexpected start up, disconnect spark plug wire and EVERY 40-50 HOURS OF OPERATION: black battery cable before you service your unit.

  • Page 24: Dcs Control Translations (Dcs Models Only)

    DCS Control Translations (DCS Models only) DCS Control Translations (DCS Models only) 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...
  • Page 25 DCS Control Translations (DCS Models only) 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...

  • Page 26: Repair

    Repair Repair Belt Replacement and 3. Use the Pressure Control Dial to set the Pressure Indicator to 0. This releases tension from the Adjustment pressure control spring. To avoid injury from unexpected start up, disconnect spark plug wire and black battery cable before you service your unit.

  • Page 27: Drive Pulley Replacement

    Repair 5. Remove belt guards using a 7/16” socket or wrench. 8. To tighten belts, reverse step 6 until desired tension is achieved. Drive Pulley Replacement 1. After the belts have been removed, remove the 3 hex bolts using a 7/16” socket. 2.

  • Page 28: Engine Pulley Replacement

    Repair Engine Pulley Replacement 4. When reinstalling, adjust the pulley so that the distance between the bottom face of the engine plate and the uppermost edge of the V-belt groove 1. Remove the lock nuts that hold the engine plate to is 2 inches.

  • Page 29: Troubleshooting

    Troubleshooting Troubleshooting To avoid injury from unexpected start up, disconnect spark plug wire and black battery cable before you service your unit. Problem Cause Solution Cutter head is too low Raise the cutter head Material build up Clean the cutters Cutters wearing unevenly/prema- turely Bearings may be worn...

  • Page 30: Dcs Models Only

    Troubleshooting DCS Models only Problem Cause Solution DCS Control not turning Blown fuse on DCS Power wire. Replace fuse on DCS Power wire. Power Switch is OFF or damaged. Turn Power Switch ON. Replace Power Switch if damged. Battery is dead. Charge Battery.

  • Page 31: Dcs Error Codes

    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.
  • Page 32 Troubleshooting Error Cause Solution E34: Up Button Error The Up Button or Handlebar Rocker Switch is stuck Disconnect Handlebar Rocker Switch from or shorted. the DCS Control. Clear the error code. If the error code reappears 30 seconds after turning the Power Switch back ON, the problem is the Up Button on the DCS Control.

  • Page 33: Dcs Actuator Rod Does Not Move

    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 54. Turn power switch to OFF. Remove the blue shroud behind the DCS Control. Ensure you have a good 12V battery installed.

  • Page 34: Parts

    Parts Parts Outer Frame Assembly - LNX8 Ref. Torque 20-22 ft-lb (27.1-30.0 N•m) 72-84 in-lb (8.1-9.5 N•m) *Use industry standard torques when not specified. 3A6354A...

  • Page 35: Outer Frame Assembly Parts List - Lnx8

    Parts Outer Frame Assembly Parts List - LNX8 Item: P/N Description 14023 Ball Knob 1065019 Handwheel Assembly V.SC30M185 Spring 110346.A Locater Pin V.SC30M179 E-Clip 85005 Thrust Bearing 10073 5/8” Structural Washer 1065007.E Upper Linkage 1065040 5/8” Belleville Spring Washer 1065041 Bronze Washer HX-CS.625-11x2.5 5/8-11x2.5”...

  • Page 36: Shock Assembly - Lnx8

    Parts Shock Assembly - LNX8 Ref. Torque 72-84 in-lb (8.1-9.5 N•m) *Use industry standard torques when not specified. Shock Assembly Parts List HX-CS.375-16x3.5 3/8-16x1.5” Hex Cap Screw 1 Item: P/N Description FLW.375 3/8 Flat Washer 168086 Upper Shock Mount Clamp 1 1065057 Lower Shock Mounting Bracket 168087...

  • Page 37: Adjustable Handles - Lnx8

    Parts Adjustable Handles - LNX8 Ref. Torque 20-22 in-lb (27.1-30.0 N•m) *Use industry standard torques when not specified. Adjustable Handles Parts List - LNX8 Item: P/N Description 168105.WH 3/8-16x1.5” Hex Cap Screw SLW.375 3/8” Lock Washer FLW.312 5/16” Flat Washer 1065013R14 Handle Clamps SPS98296A912...

  • Page 38: Adjustable Handles - Lnx8 (Series B) & Lnx8 Dcs

    Parts Adjustable Handles - LNX8 (Series B) & LNX8 DCS Ref. Torque 20-22 in-lb (27.1-30.0 N•m) 72-84 in-lb (8.1-9.5 N•m) LNX8 (Series B) LNX8 DCS 3A6354A...

  • Page 39: Adjustable Handles Parts List - Lnx8 (Series B)

    Parts Adjustable Handles Parts List - LNX8 (Series B) Item: P/N Description 17Y113 Cable, Vernier Control 18A137 Starter Assembly 18A143 Kill Switch Assembly 18A133 Tachometer Assembly 1010608.3 Grip, Foam, Handlebar, 4.5” 1065013R14 Clamp, Handlebar Locking 100003 Screw, Cap, Hex Head, 3/8-16x1.5” 4 100133 Washer, Lock, 3/8”...

  • Page 40: Drive System Assembly - Lnx8

    Parts Drive System Assembly - LNX8 Ref. Torque 28-30 ft-lb (38.0-40.0 N•m) 144-180 in-lb (16.2-20.0 N•m) 72-84 in-lb (8.1-9.5 N•m) *Use industry standard torques when not specified. 3A6354A...

  • Page 41: Drive System Parts List - Lnx8

    Parts Drive System Parts List - LNX8 Item: P/N Description FHX-CS10-32x.50 Hex Slotted Screw - Self Tapping 1036113 Throttle Cable Assembly FLW10 #10 Flat Washer NHN10-32 #10-32 Nylon Nut RS-E-176005 13HP Engine NHN.312-18 5/16” - 18 Nylon Nut FLW.312 5/16” - Flat Washer 116024 Engine Pulley 10307...

  • Page 42: Drive System Assembly - Lnx8 (Series B) & Lnx8 Dcs

    Parts Drive System Assembly - LNX8 (Series B) & LNX8 DCS Ref. Torque 28-30 ft-lb (38.0-40.0 N•m) 144-180 in-lb (16.2-20.0 N•m) 72-84 in-lb (8.1-9.5 N•m) *Use industry standard torques when not specified. 3A6354A...

  • Page 43: Drive System Parts List - Lnx8 (Series B) & Lnx8 Dcs

    Parts Drive System Parts List - LNX8 (Series B) & LNX8 DCS 108843 Screw, Cap, Hex Head, 5/16-18 x Item: P/N Description 1.75” 18A667 Frame, Inner 168025 Guard, Head Cutter 150222 Bearing, Axle, Ball, 1” 168030 Gasket, Rubber, Skirt 168045 Shaft, Axle, Front 168028 Retainer, Medium 5-12”, Skirt...

  • Page 44: Front Assembly - Lnx8

    Parts Front Assembly - LNX8 Ref. Torque 28-30 ft-lb (38.0-40.0 N•m) 20-22 ft-lb (27.1-30.0 N•m) 144-180 in-lb (16.2-20.0 N•m) 72-84 in-lb (8.1-9.5 N•m) *Use industry standard torques when not specified. 3A6354A...

  • Page 45: Front Assembly Parts List - Lnx8

    Parts Front Assembly Parts List - LNX8 Item: P/N Description HX-CS.25-20x75 1/4-20x3/4” Hex Head Bolt SLW.25 1/4” Lock Washer FLW.25 1/4” Flat Washer 168057 Belt Cover (top) 168056 Belt Cover (back) NHN.625-11 5/8-11 Nylock Nut 14023 Ball Knob 168083 Handwheel SHCS.50-13x4 1/2-13x4”...

  • Page 46: Front Assembly - Lnx8 (Series B) & Lnx8 Dcs

    Parts Front Assembly - LNX8 (Series B) & LNX8 DCS Ref. Torque 28-30 ft-lb (38.0-40.0 N•m) 20-22 ft-lb (27.1-30.0 N•m) 144-180 in-lb (16.2-20.0 N•m) 72-84 in-lb (8.1-9.5 N•m) *Use industry standard torques when not specified. 3A6354A...

  • Page 47: Front Assembly Parts List - Lnx8 (Series B) & Lnx8 Dcs

    Parts Front Assembly Parts List - LNX8 (Series B) & LNX8 DCS 18A435 Rubber, Backing Skirt Item: P/N Description 110823 1/4-20 x 1” Low Profile Screw 18A666 Frame, Outer 115753 Battery, 33AH, Sealed 168020 Wheel, Caster 100021 Screw, Cap, Hex Head, 1/4-20 x 1” JHN.75-10 Nut, Jam, 3/4”-10 100015 Nut, Hex, 1/4”-20...

  • Page 48: Controls Assembly - Lnx8 (Series B)

    Parts Controls Assembly - LNX8 (Series B) Ref. Torque 28-30 ft-lb (38.0-40.0 N•m) 20-22 in-lb (2.3-2.5 N•m) *Use industry standard torques when not specified. 3A6354A...

  • Page 49: Controls Assembly Parts List - Lnx8 (Series B)

    Parts Controls Assembly Parts List - LNX8 (Series B) Item: P/N Description G65009.25.E Handle, Assembly, Cam Lever 17Y115 Bracket, Shock 120454 Washer, Flat, 5/16” HX-CS.312-18x2.5 Screw, Cap, Hex Head, 5/16”-18 x 2.5” 4 110838 Nut, Lock, 5/16”-18 14023 Knob, Ball 10808 FItting, Grease 17Y822...

  • Page 50: Controls Assembly - Lnx8 Dcs

    Parts Controls Assembly - LNX8 DCS Ref. Torque 28-30 ft-lb (38.0-40.0 N•m) 20-22 in-lb (2.3-2.5 N•m) *Use industry standard torques when not specified. 3A6354A...

  • Page 51: Controls Assembly Parts List - Lnx8 Dcs

    Parts Controls Assembly Parts List - LNX8 DCS Item: P/N Description 18A669 Bracket, Control Mounting 17Y111 Bracket, Upper Linkage 120454 Washer, Flat, 5/16” HX-CS.312-18x2.5 Screw, Cap, Hex Head, 5/16-18 x 2.5” 110838 Nut, Lock, 5/16’ 18A790 Control, Assembly, DCS 128990 Screw, Cap, Button Head, 10-32 x 0.75”...

  • Page 52: Spindle Cutter Assembly (24 Pin)

    Parts Spindle Cutter Assembly (24 pin) Spindle Cutter Assembly Parts List - 169068.PM3000A Item: P/N Description 169068 Spindle Assembly 169001 Rubber Bushing 169018 Steel Bushing 168039 Hub Connector 168013 Hub Plate SLW.M16 Lock Washer HX-CS.M16-2.0x75mm Hex Cap Screw PM3000NA 24 Pin Cutter (set of 3) 169015 Backing Plate 110443...

  • Page 53: Dcs Control Box 18A790

    DCS Control Box 18A790 DCS Control Box 18A790 LNX8 DCS only Parts List Ref. Part Description Qty. Ref. Part Description Qty. 18A693 KIT, home button, DCS 18A690 KIT, DCS Control Box, machined 18A694 KIT, zero button, DCS includes 300a - 300f 18A695 KIT, cut cutton, DCS 17Y686 LABEL, control, LNX8 DCS 18A696 KIT, up button, DCS...

  • Page 54: Wiring Diagram

    Wiring Diagram Wiring Diagram DCS System 3A6354A...

  • Page 55: Dcs Control Box

    Wiring Diagram DCS Control Box Powers Display 3A6354A...

  • Page 56: Technical Data

    Technical Data Technical Data LNX8 Noise level (dBa) Sound power 109 dBa per ISO 3744 Sound pressure 94 dBa measured at 3.1 feet (1m) Vibration level* Right/Left Hand 18.1 m/sec * Vibration measured per ISO 5349 based on 8 hr daily exposure Dimensions/Weight (unpackaged) Metric Height...

  • Page 57: Smith Standard Warranty

    With the exception of any special, extended, or limited warranty published by SMITH, SMITH will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by SMITH to be defective.
  • Page 58 SMITH reserves the right to make changes at any time without notice. Original instructions. This manual contains English. MM 3A5581 SMITH Headquarters: Pompano Beach, FL SMITH SURFACE-PREP SOLUTIONS • 2504 NW19 ST • POMPANO BEACH, FL 33069 • USA Copyright 2018, SMITH Surface-Prep Solutions • www.SMITHmfg.com Revision...

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