Smith LNX8 Series Gebrauchs- und Pflegehandbuch

3A6354A

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) LNX8 DCS

Contents

23A6354A

Contents

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Battery Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Component Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

LNX8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Component Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

LNX8 (Series B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Component Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

LNX8 DCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Handle Bar Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Engine Kill Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Cutter Head Installation/Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Dust Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

DCS Control (DCS Models only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Machine Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Cutting Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Stop Cutting Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

DCS Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

DCS Control Translations (DCS Models only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Belt Replacement and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Drive Pulley Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Engine Pulley Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

DCS Models only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

DCS Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

DCS Actuator Rod Does Not Move . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Outer Frame Assembly - LNX8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Outer Frame Assembly Parts List - LNX8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Shock Assembly - LNX8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Shock Assembly Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Adjustable Handles - LNX8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Adjustable Handles Parts List - LNX8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Adjustable Handles - LNX8 (Series B) & LNX8 DCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Adjustable Handles Parts List - LNX8 (Series B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Adjustable Handles Parts List - LNX8 DCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Drive System Assembly - LNX8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Drive System Parts List - LNX8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Drive System Assembly - LNX8 (Series B) & LNX8 DCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Drive System Parts List - LNX8 (Series B) & LNX8 DCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Front Assembly - LNX8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Front Assembly Parts List - LNX8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Front Assembly - LNX8 (Series B) & LNX8 DCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Front Assembly Parts List - LNX8 (Series B) & LNX8 DCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Controls Assembly - LNX8 (Series B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Controls Assembly Parts List - LNX8 (Series B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Controls Assembly - LNX8 DCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Controls Assembly Parts List - LNX8 DCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Spindle Cutter Assembly (24 pin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Spindle Cutter Assembly Parts List - 169068.PM3000A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

DCS Control Box 18A790 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

LNX8 DCS only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

DCS System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

DCS Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

SMITH Standard Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Warnings

3A6354A 3

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.

WARNING

DUST AND DEBRIS HAZARD

Grinding concrete and other surfaces with this equipment can create dust that contains hazardous

substances. Grinding can also create flying debris.

To reduce the risk of serious injury:

• Control the dust to meet all applicable workplace regulations.

• Wear protective eye wear and a properly fit-tested and government approved respirator suitable for

the dust conditions.

• Use equipment only in a well-ventilated area.

• Grinding equipment must be used only by trained personnel who understand the applicable work-

place regulations.

ENTANGLEMENT AND MOVING PARTS HAZARD

Moving parts can pinch, cut or amputate fingers and other body parts.

• Keep clear of moving parts.

• Do not operate equipment with protective guards or covers removed.

• Do not wear loose clothing, jewelry or long hair while operating equipment.

• Before checking, moving, or servicing equipment, disconnect battery.

BURN HAZARD

Cutters and engine can become very hot during operation. To avoid severe burns, do not touch hot

equipment. Wait until equipment has cooled completely.

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

• Do not operate the unit when fatigued or under the influence of drugs or alcohol.

• Do not leave the work area while equipment is energized. Turn off all equipment when equipment is

not in use.

• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manu-

facturer’s replacement parts only.

• Do not alter or modify equipment.

• Use equipment only for its intended purpose. Call your distributor for information.

• Keep children and animals away from work area.

• Comply with all applicable safety regulations.

• Maintain a safe operating distance from other people in the work area.

• Avoid any pipes, columns, openings, or any other objects protruding from work surface.

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 dust or

chemicals, burns, and hearing loss. This equipment includes but is not limited to:

• Protective eye wear.

• Protective shoes.

• Gloves.

• Hearing protection.

• Properly fit-tested and government approved respirator suitable for the dust conditions.

Warnings

43A6354A

Battery Disposal

Do not place batteries in the trash. Recycle batteries according to local regulations. In the USA and Canada call

1-800-822-8837 to find recycling location or go to www.call2recycle.org.

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.

• Keep work area free of debris, including solvent, rags and gasoline.

• Keep a fire extinguisher in work area.

CARBON MONOXIDE HAZARD

Exhaust contains poisonous carbon monoxide, which is colorless and odorless. Breathing carbon

monoxide can cause death.

• Do not operate in an enclosed area.

BATTERY HAZARD

Lead-acid batteries produce explosive gases and contain sulfuric acid that can cause severe burns. To

avoid sparks and injury when handling or working with a lead-acid battery:

• Read and follow the battery manufacturer’s warnings.

• Exercise caution when working with metallic tools or conductors to prevent short circuits and sparks.

• Keep all sparks, flames, and cigarettes away from batteries.

• Always wear protective eyewear and protective equipment for face, hands, and body.

• If you have direct contact with battery fluid, flush with water and consult a physician immediately.

• Installation and maintenance must be performed by knowledgeable personnel only.

Component Identification

3A6354A 5

Component Identification

LNX8

ti33805a

Component

A Handlebar

B Cutter Head Engage Lever

C Handlebar Adjustment Bolts

D Cutter Head Adjustment Dial

E Pressure Control Dial

FDust Skirt

G Vacuum Port

H Engine

I Electric Start Engine Switch

J Engine Throttle

K Engine Kill Button

L Pressure Indicator

M Wheel Stop

N Hour Meter / Tachometer

Component

Component Identification

63A6354A

Component Identification

LNX8 (Series B)

Component

A Handlebar

B Cutter Head Engage Lever

C Handlebar Adjustment Bolts

D Cutter Head Adjustment Dial

E Pressure Control Dial

FDust Skirt

G Vacuum Port

HEngine

I Electric Start Engine Switch

J Engine Throttle

K Engine Kill Button

L Pressure Indicator

M Wheel Stop

N Hour Meter/Tachometer

Component

Component Identification

3A6354A 7

Component Identification

LNX8 DCS

Component

A Handlebar

B Power Switch

C Handlebar Adjustment Bolts

D DCS Control

E Pressure Control Dial

F Dust Skirt

G Vacuum Port

H Engine

I Electric Start Engine Switch

J Engine Throttle

K Engine Kill Button

L Pressure Indicator

M Wheel Stop

N Hour Meter/Tachometer

S Home Button

T Zero Button

U Cut Depth Button

V Up/Down Buttons

W Manual Height Adjustment

Component

Setup

83A6354A

Setup

Handle Bar Adjustment

The handlebars are equipped with a high-density

vibration suppression material to reduce operator fatigue

when operating equipment. To adjust the handlebars to

a new position for different height operators please follow

these steps:

1. Using a 9/16” (14mm) wrench or socket, loosen the

bolts on both sides of the handlebars until the

handlebar moves freely.

2. Stand behind the machine and lightly tap the

handlebar to the desired position.

3. Re-tighten the bolts to 21.7 to 25 ft-lb (29-34 N•m) to

lock the handlebars into position.

NOTE: Never operate equipment with loose handlebars.

The bolts must be fastened tightly assuring the handle is

locked into position.

Engine Kill Button

In the event of a malfunction or an accident (such as the

machine operator falling or losing footing), the LNX8 is

equipped with a corded Engine Kill Button. Attach the

end of the cord to the operator’s belt or wrist, and snap

the clip into place on the button by raising the top of the

Engine Kill Button and inserting the clip into the gap. If

the operator becomes distanced too far from the

machine, the cord will detach from the button and the

machine will stop running. The engine can also be

stopped by pressing down on the Engine Kill Button.

Cutter Head

Installation/Replacement

Normal use will require periodic cutter head inspection

and may necessitate cutter replacement. Time of

replacement will vary according to usage and load

factors.

1. Non-DCS Models: Raise the Cutter Head Engage

Lever to the up position so the cutter head is off the

ground.

DCS Models: Press the Home Button on the DCS

Control so the cutter head is off the ground.

2. Remove Clevis Pin.

To avoid injury from unexpected start up, disconnect

spark plug wire and black battery cable before you

service your unit.

Setup

3A6354A 9

3. Non-DCS Models: Rotate Cutter Head Engage

Lever to upwards position to release lower linkage

from inner frame.

DCS Models: Press the Home Button on the DCS

Control.

4. Turn the pressure control dial until the indicator is at

“0”. This releases tension from the pressure control

spring.

5. Unhook spring from the spring plunger (bottom rear

section of machine).

6. Rotate the inner frame upwards to gain access to

the cutters.

7. If there is a cutter head attached, it must be

removed. To do so, strike the cutters in a counter

clockwise direction with a rubberized mallet or wood

block.

Setup

10 3A6354A

8. Install the new cutter assembly onto the machine by

spinning clockwise. Cutters will lock onto the

machine once surface removal is started.

9. Lower the inner frame back to a horizontal position.

10. Connect the spring to the spring plunger.

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).

12. Connect Clevis Pin.

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