Smith FS050 Guide

3A6353A
EN
Operation/Parts
SMITH® Handhelds
For removal of materials from flat concrete and asphalt surfaces.
For professional use only.
SMITH FS050 Handheld Electric Scarifer-Grinder / 1hp, 120Vac
SMITH FS150 Rotary Electric Scarifier-Grinder / 1hp, 120Vac
Important Safety Instructions
Read all warnings and instructions in this manual and the grinder manual before
using the equipment. Be familiar with the controls and the proper usage of the
equipment. Save all instructions.
SMITH FS050 Handheld SMITH FS150 Rotary Handheld

Contents
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Contents
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Component Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SMITH FS050 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SMITH FS150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Machine Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cutting Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Parts - SMITH FS050. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Parts - SMITH FS150. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SMITH Standard Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Warnings
3A6353A 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 eyewear 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
workplace regulations.
ROTATING PARTS HAZARD
Rotating parts can cut or amputate fingers and other body parts.
• Keep clear of rotating parts.
• Do not operate equipment with protective guards or covers removed.
• Before checking, moving, or servicing equipment, disable power supply.
BURN HAZARD
Equipment surfaces that are heated 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
manufacturer’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
43A6353A
WARNING
ELECTRIC SHOCK HAZARD
This equipment must be grounded. Improper grounding, setup, or usage of the system can cause
electric shock.
• Turn off and disconnect power cord before servicing equipment.
• Connect only to grounded electrical outlets.
• Use only 3-wire extension cords.
• Ensure ground prongs are intact on power and extension cords.
• Do not expose to rain. Store indoors.
GROUNDING
This product must be grounded. In the event of an electrical short circuit, grounding reduces the risk
of electric shock by providing an escape wire for the electric current. This product is equipped with a
cord having a grounding wire with an appropriate grounding plug. The plug must be plugged into an
outlet that is properly installed and grounded in accordance with all local codes and ordinances.
• Improper installation of the grounding plug is able to result in a risk of electric shock.
• When repair or replacement of the cord or plug is required, do not connect the grounding wire to
either flat blade terminal.
• The wire with insulation having an outer surface that is green with or without yellow stripes is the
grounding wire.
• Check with a qualified electrician or serviceman when the grounding instructions are not
completely understood, or when in doubt as to whether the product is properly grounded.
• Do not modify the plug provided; if it does not fit the outlet, have the proper outlet installed by a
qualified electrician.
• This product is for use on a nominal 120V circuit and has a grounding plug similar to the plugs
illustrated in the figure below.
• Only connect the product to an outlet having the same configuration as the plug.
• Do not use an adapter with this product.
Extension Cords:
• Use only a 3-wire extension cord that has a grounding plug and a grounding receptacle that
accepts the plug on the product.
• Make sure your extension cord is not damaged. If an extension cord is necessary, use 12 AWG
(2.5 mm2) minimum to carry the current that the product draws.
• An undersized cord results in a drop in line voltage and loss of power and overheating.
120V US

Component Identification
3A6353A 5
Component Identification
SMITH FS050
Component
A Grinder
BCutter Drum
C Handle
D Vacuum Port
E Trigger
F Trigger Lock
G Speed Control Dial (1-slowest, 6-fastest)
H Drive Shaft Lock
I Dust Skirt

Component Identification
63A6353A
SMITH FS150
Component
A Grinder
BCutter Drum
C Handle
D Vacuum Port
E Trigger
F Trigger Lock
G Speed Control Dial (1-slowest, 6-fastest)
H Drive Shaft Lock
IDust Skirt

Operation
3A6353A 7
Operation
Machine Start-Up
1. If using a vacuum, attach vacuum hose to the
vacuum port. Turn the vacuum on.
2. Plug power cord into a grounded outlet.
3. Hold the unit with the cutters 2-4 inches (5-10 cm)
off the surface to be scarified.
4. Depress the trigger and adjust the speed dial to the
desired setting.
Cutting Material
1. While holding the machine firmly, press the cutters
into the surface to be cut.
2. When ready to stop cutting material, lift the cutters
off of the surface, release the trigger, and allow the
cutters to come to a stop.
3. Unplug the power cord from the power source.
Maintenance
1. Inspect the dust skirt on the scarifier daily. Repair or
replace the skirt if it is torn or damaged to ensure
maximum dust and debris containment.
2. Inspect cutters daily and replace cutters that appear
worn in order to achieve optimal cutting speed and
surface finish.

Parts - SMITH FS050
83A6353A
Parts - SMITH FS050
Parts List
Ref. Torque
240-250 in-lb (27.1-28.2 N•m)
70-80 in-lb (7.9-9.0 N•m)
120-130 in-lb (13.6-14.7 N•m)
10-12 in-lb (1.1-1.4 N•m)
1
2
3
4
2
4
1
3
Item P/N Qty Description
1 FS050.ME 1 Grinder
2 1010608.3 1 Foam Grip
3 FS050.003 1 Housing Assembly (inc. 3a-3d)
3a FS050.051 2 Rubber Skirt
5SHCS.M6-1.0x30mm 1 Socket Cap Screw
6 FS050.015 1 Vacuum Port Cap
7 FS050.001.L5A 2 Drum Offset Spacer
8* 5502.6.1519.2M 1 Flail Drum Assembly (inc. 8a-8g)
8a FS050.002 1 Blank Drum (inc. 8b-8e)
8b S10.02.0500.4 6 Shaft
8c 17W881 2 Retaining Plate
8d ECLW10 4 Washer
8e FHSCS.M5-08x10mm 4Screw
8f CF1519 36 Cutter
8g FLW.M10 42 Spacer
9FHSCS.M6-1.0x12mm 7 Flat Head Screw
10s17W315 1 Warning Label
* Other drum assembly options are available.
s Replacement safety labels, tags, and cards are available at no
cost.

Parts - SMITH FS150
3A6353A 9
Parts - SMITH FS150
Parts List
Ref. Torque
65-75 in-lb (7.3-8.5 N•m)
26-30 ft-lb (35.3-40.7 N•m)
11
2
2
1
1
Item: P/N Qty Description
1 FS050.ME 1 Grinder
2 FS150.475.3278 1 Locking Collar
3 SHCS.M6-1.0x30mm 1 Socket Cap Screw
4 SLW.M6 3 Lock Washer
5 FS150.000.T 1 Housing Assembly
6 FS150.004 1 Vacuum Port Cap
7 FS150.830.3160A 1 Drum Adapter Mount
8HX-CS.M6-1.0x16mm 3 Hex Cap Screw
9 FLW.M6 3 Flat Washer
10* FS150.1519.M 1 Flail Drum Assembly
10a FS150.675.3151 1 Pin Retainer
10b FS150.675.3155 7 Pin
10c FS150.475.3150A 1 Drum Body
10d CF1519 21 Cutter
10e FLW.M10 21 Spacer
11 HX-CS.M14-2.0x20mm 1 Hex Cap Screw
12s17W315 1 Warning Label
* Other drum assembly options are available.
s Replacement safety labels, tags, and cards are available at
no cost.

10 3A6353A
Technical Specifications
SMITH FS050 (FS050.3.Makita®)
Dimensions (unpackaged)
Height in./cm: 19 (48.3)
Width in./cm: 8 (20.3)
Length in.cm: 9 (22.9)
Weight lb/kg: 12 (5.4)
Maximum Amperage 10 Amps
Electrical Power Requirement 120Vac, 60 Hz, 15 A, 1Ø
SMITH FS150 (FS150.T.Makita®)
Dimensions (unpackaged)
Height in./cm: 20 (50.8)
Width in./cm: 12 (30.5)
Length in.cm: 11 (27.9)
Weight lb/kg: 15 (6.8)
Maximum Amperage 10 Amps
Electrical Power Requirement 120Vac, 60 Hz, 15 A, 1Ø
CALIFORNIA RESIDENTS WARNING: Cancer and reproductive harm –
www.P65warnings.ca.gov.
CALIFORNIA PROPOSITION 65

All written and visual data contained in this document reflects the latest product information available at the time of publication.
SMITH reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 3A6353
SMITH SURFACE-PREP SOLUTIONS • 2504 NW 19 STREET • POMPANO BEACH, FL 33069 • USA
Copyright 2020 SMITH Surface-Prep Solutions. Our manufacturing location is registered to ISO 9001.
www.smithmfg.com
Revision A, May 2020
SMITH Standard Warranty
SMITH warrants all equipment referenced in this document which is manufactured by SMITH 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 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. This warranty applies only when the equipment is installed, operated and maintained in accordance with SMITH’s written
recommendations.
This warranty does not cover, and SMITH shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-SMITH component parts. Nor shall SMITH be liable for malfunction, damage or wear caused by the incompatibility of SMITH equipment with
structures, accessories, equipment or materials not supplied by SMITH, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by SMITH.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized SMITH distributor for verification of
the claimed defect. If the claimed defect is verified, SMITH will repair or replace free of charge any defective parts. The equipment will be returned
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will
be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
SMITH’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
SMITH MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY SMITH. These items sold, but not manufactured by SMITH (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. SMITH will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will SMITH be liable for indirect, incidental, special or consequential damages resulting from SMITH supplying equipment hereunder,
or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of SMITH, or otherwise.
FOR SMITH CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.
SMITH Information
For the latest information about SMITH products, visit www.smithmfg.com.
TO PLACE AN ORDER, contact your SMITH distributor, or call 1-800-653-9311.