Multiquip SFG10E User Manual

OPERATION AND PARTS MANUAL

MODEL SFG10E

ELECTRIC SURFACE GRINDER

Revision #2 (05/28/09)

To find the latest revision of this

publication, visit our website at:

www.multiquip.com

THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

SILICOSIS/RESPIRATORY WARNINGS

WARNING

SILICOSIS WARNING RESPIRATORY HAZARDS

Grinding/cutting/drilling of masonry, concrete, metal and
other materials with silica in their composition may give
off dust or mists containing crystalline silica. Silica is a
basic component of sand, quartz, brick clay, granite and
numerous other minerals and rocks. Repeated and/or
substantial inhalation of airborne crystalline silica can
cause serious or fatal respiratory diseases, including
silicosis. In addition, California and some other
authorities have listed respirable crystalline silica as a
substance known to cause cancer. When cutting such
materials, always follow the respiratory precautions
mentioned above.

WARNING

Grinding/cutting/drilling of masonry, concrete, metal and
other materials can generate dust, mists and fumes
containing chemicals known to cause serious or fatal
injury or illness, such as respiratory disease, cancer,
birth defects or other reproductive harm. If you are
unfamiliar with the risks associated with the particular
process and/or material being cut or the composition of
the tool being used, review the material safety data
sheet and/or consult your employer, the material
manufacturer/supplier, governmental agencies such as
OSHA and NIOSH and other sources on hazardous
materials. California and some other authorities, for
instance, have published lists of substances known to
cause cancer, reproductive toxicity, or other harmful
effects.

Control dust, mist and fumes at the source where
possible. In this regard use good work practices and
follow the recommendations of the manufacturers or
suppliers, OSHA/NIOSH, and occupational and trade
associations. Water should be used for dust
suppression when wet cutting is feasible. When the
hazards from inhalation of dust, mists and fumes cannot
be eliminated, the operator and any bystanders should
always wear a respirator approved by NIOSH/MSHA for
the materials being used.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 2

Electric Surface Grinder

TABLE OF CONTENTS

SFG10E

Silicosis/Respiratory Warnings .................................. 2

Table Of Contents ..................................................... 3

Parts Ordering Procedures ....................................... 4

Notice to Operators ................................................ 5-6

Operator Instructional Data Sheet ............................ 7

Safety Precautions ............................................... 8-11

Assembly Instructions/Operations ..................... 12-31

Maintenance/Service ......................................... 32-35

Troubleshooting ...................................................... 36

Storage ................................................................... 37

Specifications .......................................................... 38

Explanation Of Code In Remarks Column .............. 40

Suggested Spare Parts ........................................... 41

Operator Handle Assembly ................................ 42-43

Electric Motor Assembly..................................... 44-45

Wheel Dolly Assembly........................................ 46-47

Frame Assembly ................................................ 48-49

Safety and Dust Shield Assembly ...................... 50-51

Scarifier Assembly ............................................. 52-53

Scrape-R-Tach Assembly .................................. 54-55

Grinding Block Assembly ................................... 56-57

Decals ................................................................ 58-59

As a continuing effort to update our parts
book, contact the MULTIQUIP literature
department for the latest revision of your
"Operation and Parts Manual"

Specification and part number are subject
to change without notice.

Terms and Conditions of Sale ................................. 60

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 3

PARTS ORDERING PROCEDURES

Ordering parts has never been easier!

Choose from three easy options:

January 1

Effective:

st

, 2006

Best Deal!

Order via Internet (Dealers Only):

Order parts on-line using Multiquip’s SmartEquip website!

■ View Parts Diagrams

■ Order Parts

■ Print Specifi cation Information

Goto www.multiquip.com and click on

Order Parts

Order via Fax (Dealers Only):

All customers are welcome to order parts via Fax.
Domestic (US) Customers dial:
1-800-6-PARTS-7 (800-672-7877)

Non-Dealer Customers:
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.

to log in and save!

Order via Phone:

If you have an MQ Account, to obtain a Username
and Password, E-mail us at: parts@multiquip.

com.

To obtain an MQ Account, contact your
District Sales Manager for more information.

Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*

Note: Discounts Are Subject To Change

Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*

Note: Discounts Are Subject To Change

Domestic (US) Dealers Call:

1-800-427-1244

International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.

When ordering parts, please supply:

❒ Dealer Account Number
❒ Dealer Name and Address
❒ Shipping Address (if different than billing address)
❒ Return Fax Number
❒ Applicable Model Number
❒ Quantity, Part Number and Description of Each Part

NOTICE

All orders are treated as Standard Orders and will

ship the same day if received prior to 3PM PST.

❒ Specify Preferred Method of Shipment:
✓ UPS/Fed Ex ✓ DHL

■ Priority One ✓ Truck

■ Ground

■ Next Day

■ Second/Third Day

www.multiquip.com

WE ACCEPT ALL MAJOR CREDIT CARDS!

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 4

NOTICE TO OPERATORS

IF YOU CAN NOT READ OR DO NOT FULLY UN­DERSTAND THE CONTENTS OF THIS MANUAL,
PLEASE CONTACT THE FACTORY FOR PROPER
ASSISTANCE BEFORE ATTEMPTING TO OPER­ATE THIS PRODUCT.

SI TU NO PUEDES LE’ER O NO COMPRENDES
EL CONTENIDO DE ESTE MANUAL FAVOR DE
PONERSE EN CONTACTO CON LA. FABRICA
PARA ASSISTENCIA- A PROPIA ANTES DE
INTENTAR PARA OPERAR ESTE PRODUCTO.
SOLLTEN SIE DIESE GEBRAUCHSANWEISUNG
NICHT LESEN KOENNEN ODER ES NICHT
VOLLKOMMEN VERSTEHEN, WENDEN SIE SICH
BITTE AN DEN HERSTELLER FUER RICHTIGE
HILFE EHE SIE VERSUCHEN DIESES PRODUKT
ZU OPERIEREN.

SI VOUS NE LISEZ OU NE COMPRENDRE
ENTIEREMENT LES MATIERES DE CE MANUEL,
S’IL VOUS PLAIT, CONTACTEZ L’USINE POUR
L’ASSISTANCE APPROPRIEE AVANT
D’UTILISER LE PRODUIT.

DANGERDANGER

DANGER

DANGERDANGER

You WILL be

KILLED

or

SERIOUSLY

injured if you DO

NOT follow directions.

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

You CAN be

INJURED

if you DO NOT follow directions.

These safety alert symbols identify important safety
messages in this manual. When you see these
symbols, be alert to the possibility of personal injury
and carefully read the message that follows.

Do not allow anyone to operate the SURFACE
GRINDER without first reading this Operator Manual
and becoming familiar with its operation. The manu­facturer of the SURFACE GRINDER has gone to great
extremes to provide the owner(s) and/or operator(s)
with the finest equipment available for its intended job
function of removing covering materials from concrete
and wood floor surfaces. Yet, the possibility exists that
the SURFACE GRINDER can be utilized in and/or
subjected to job applications not perceived and/or
anticipated by the manufacturer. Such misuse and/or
misapplication of the SURFACE GRINDER can lead
to the possibility of serious damage, injury or even
death. It is the responsibility of the owner(s) and/or
operator(s) to determine that the SURFACE
GRINDER is being utilized and/or operated within the
scope of its intended job function. It is the responsibil­ity of the owner(s) and/or operator(s) to establish,
monitor and constantly upgrade all safety programs
and/or practices utilized in and for the operation of
the SURFACE GRINDER. The purpose of such pro­grams is to provide for owner(s’) and/or operator(s’)
safety. Operators must be instructed to recognize and
avoid unsafe conditions associated with their work
(29 CFR 1926.21 (b)(2)) and/or applicable updated
revisions. It is the responsibility of the owner(s) and/
or operator(s) to determine that no modifications and/
or alterations have been made to the SURFACE
GRINDER. Modifications and/or alterations can lead
to the possibility of serious damage, injury or even
death. It is the responsibility of the owner(s) and/or
operator(s) to make this Operator Manual available
for consultation during all phases of operation. Refer
to OSHA 2207 and/or applicable updated revisions
which contains all OSHA job safety and health rules and
regulations (1926 and 1910) covering construction.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 5

NOTICE TO OPERATORS

The concept of powered SURFACE GRINDER has
been successfully utilized for many years as a
practical solution to many types of surfacve
preparation requirements. The basic concept is
proven and well accepted within the associated
marketplaces. Use of a SURFACE GRINDER
requires strenuous work activity. This type of work
activity can be considered to be greater in
magnitude than that experienced with the use of
many other types of both light construction and
lawn and garden related equipment. This type of
work activity should only be attempted by
operators of adequate physical size and stature,
mental awareness and physical strength and
condition. The body parts most noticeably affected
during any specific process are the arms, hands,
wrists, shoulders, lower back and legs. The
process can also produce excessive stress/strain
directly to the back muscles, spinal vertebrae and
many other body parts. Back related pain can be
a side effect of utilizing a SURFACE GRINDER.
An operator with a chronic back related problem
or a history of back and/or other medically related
problems should not attempt to utilize the
SURFACE GRINDER. Use of the SURFACE
GRINDER may only aggravate this and any other

medically related problem. Because of the diverse
type of prevailing job applications, job site
conditions, operator experience levels and
operator physical characteristics, no warranty,
guarantee, representation and/or liability is made
by the manufacturer as to the absolute
correctness or sufficiency of any operational
procedure, operational position and/or technique.
There is no absolute guarantee that an operator
of any given experience level, physical size and/
or physical condition will be immune to the
possibility of and/or probable physical side effects
of the normal use of the SURFACE GRINDER.
Each potential operator must be made aware of
and assume the operational and physical liability
described and/or associated with the use of the
SURFACE GRINDER. Improper use of the
SURFACE GRINDER can result in property
damage and/or personal injury, including death.
Each potential operator not willing to assume the
operational and physical liability described and/
or associated with the use of the SURFACE
GRINDER, should not operate it. Proper levels of
operator experience, skill and common sense are
essential for maximizing the safe and efficient
operation of the SURFACE GRINDER.

Record the SURFACE GRINDER and electric motor serial numbers in the spaces provided below.

__________________ Model Number

__________________ Serial Number

__________________ Electric Motor Serial Number

__________________ Date of Purchase

Specifications and design are subject to change without
notice or obligation. All specifications are general in nature
and are not intended for specific application purposes.
Multiquip, Inc. reserves the right to make changes in design,
engineering or specifications and to add improvements or

discontinue manufacture at any time without notice or
obligation. Multiquip, Inc. and its agents accept no
responsibility for variations which maybe evident in actual
products, specifications, pictures and descriptions contained
in this publication.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 6

OPERATOR INSTRUCTIONAL DATA SHEET

The following undersigned operators of the SURFACE
GRINDER described and/or pertaining to this Operator
Manual have received formal safety and operational in­formation/instruction from the undersigned owner(s)/
instructor(s) in accordance to OSHA 29 CFR 1926.21 (b)(2)
and/or applicable updated revisions pertaining to, but not
necessarily limited to the:

1) READING, COMPREHENSION AND
ACKNOWLEDGEMENT OF THE MATERIAL COM­PRISING THE ENTIRE CONTENTS OF THE
APPLICABLE OPERATOR MANUAL.

2) FORMALIZED OPERATOR SAFETY PROGRAM TO
BE DEVISED BY THE OWNER OF THE SURFACE
GRINDER IN CONJUNCTION WITH THE CON­TENTS OF THE APPLICABLE OPERATOR MANUAL
AND THE APPLICABLE MATERIAL INCLUDED IN
THE NATIONAL ELECTRICAL CODE®.

3) OSHA AND NATIONAL ELECTRIC CODE® RULES
AND REGULATIONS RESEARCHED FOR AND/OR
BY THE OWNER OF THE SURFACE GRINDER AND
DEEMED APPLICABLE TO THE SAFE AND
PROPER USE AND/OR OPERATION OF THE SUR­FACE GRINDER FOR ANY SPECIFIC JOB
APPLICATION.

4) LOCAL LAWS, REGULATIONS AND CUSTOMS
RESEARCHED FOR AND/OR BY THE OWNER OF
THE SURFACE GRINDER AND DEEMED APPLI­CABLE TO THE SAFE AND PROPER USE AND/OR
OPERATION OF THE SURFACE GRINDER FOR
ANY SPECIFIC JOB APPLICATION.

5) FORMALIZED MAINTENANCE PROGRAM FOR
THE SURFACE GRINDER TO BE DEVISED BY THE
OWNER OF THE SURFACE GRINDER IN ACCOR­DANCE WITH, BUT NOT NECESSARILY LIMITED
TO, THE SPECIFICATIONS, GUIDELINES AND
OPERATIONAL INFORMATION CONTAINED IN THE
APPLICABLE OPERATOR MANUAL.

6) COMPREHENSIVE OPERATIONAL INSTRUC­TIONS FOR THE CORRECT AND PROPER USE OF
THE SURFACE GRINDER AS PER THE CONTENTS
OF THE APPLICABLE OPERATOR’S MANUAL AND
APPLICABLE MATERIAL INCLUDED IN THE NA­TIONAL ELECTRIC CODE®.

_________________ Operator ____________________ Owner/Instructor _____________ Date

_________________ Operator ____________________ Owner/Instructor _____________ Date

_________________ Operator ____________________ Owner/Instructor _____________ Date

_________________ Operator ____________________ Owner/Instructor _____________ Date

_________________ Operator ____________________ Owner/Instructor _____________ Date

_________________ Operator ____________________ Owner/Instructor _____________ Date

NOTE: INSERT COPIES OF THIS PAGE WITHIN THE OPERATOR’S MANUAL IF SPACE FOR ADDITIONAL
OPERATORS IS REQUIRED.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 7

DANGERDANGER

DANGER

DANGERDANGER

THE FOLLOWING SAFETY PRECAUTIONS PROVIDE
SOME COMMON SENSE GUIDES TO PROMOTE
SAFETY AND EFFICIENCY WITH THE SURFACE
GRINDER. NO WARRANTY, GUARANTEE OR REPRE­SENTATION IS MADE BY THE MANUFACTURER AS
TO THE ABSOLUTE CORRECTNESS OR SUFFI­CIENCY OF ANY INFORMATION OR STATEMENT.
THESE SAFETY PRECAUTIONS ARE INTENDED TO
DEAL PRINCIPALLY WITH COMMON PRACTICES
AND CONDITIONS ENCOUNTERED IN THE USE OF
THE SURFACE GRINDER AND ARE NOT INTENDED
TO BE ALL INCLUSIVE. PROPER LEVELS OF OP­ERATOR EXPERIENCE, SKILL AND COMMON SENSE
ARE ESSENTIAL FOR SAFE AND EFFICIENT OP­ERATION.

DANGERDANGER

DANGER

DANGERDANGER

INCORRECT USE OF THE SURFACE GRINDER CAN
RESULT IN PROPERTY DAMAGE, PERSONAL
INJURY OR EVEN DEATH. TO REDUCE THIS
POSSIBILITY, GIVE COMPLETE AND UNDIVIDED
ATTENTION TO THE JOB AT HAND AND FOLLOW
THESE SAFETY PRECAUTIONS:

SAFETY PRECAUTIONS

2) Develop a comprehensive program for the safe operation
of the SURFACE GRINDER by its owner(s) and/or
operator(s). Such a program will include, but is not
limited to: instructional requirements for operation,
applicable OSHA requirements, local laws and
regulations, job site safety and a SURFACE GRINDER
maintenance program. Constantly examine and upgrade
this program to guarantee owner(s) and/or operator(s)
safety. Each operator must be fully instructed regarding
the specifics of this safety program.

3) Determine that the SURFACE GRINDER is in its original,
factory configuration and has not been modified in any
manner. Many modifications can result in potentially
dangerous configurations that can lead to property
damage and/or personal injury. If there are any questions
about possible modifications made to the SURFACE
GRINDER, contact the Customer Service Department
for specific information BEFORE utilization. There is
no charge for this service. Do not operate the SURFACE
GRINDER without the use of the original equipment V­belt guard. Use of the SURFACE GRINDER without an
approved belt guard can lead to property damage and/
or personal injury.

4) Minors should never be allowed to operate the SURFACE
GRINDER. Bystanders, especially children and animals,
should not be allowed in the area where the SURFACE
GRINDER is in use. The grinding process can result in
flying particles being emitted at high velocity and striking
the operator and/or onlookers. This can lead to the
possibility of property damage and/or personal injury.
Keep all body parts, loose clothing, foreign objects and
onlookers clear of the rotating disc, multi-accessory
attachments and flying particles.

PREPARATION

1) This SURFACE GRINDER is specialized type of
powered equipment, designed for a specific job function
and requires adequate and thorough instruction
BEFORE it is operated. The size, power, complexity
and operating characteristics of this type of powered
equipment would dictate that each operator must receive
adequate, professional instruction regarding the proper
operation of this SURFACE GRINDER before being
allowed to utilize it. BEFORE attempting to utilize this
SURFACE GRINDER, read this Operator’s Manual and
the material supplied by the motor manufacturer to
familiarize each operator with its correct operating
procedures. Avoid the urge not to take the necessary
time to read this Operator’s Manual before operating
the SURFACE GRINDER. DO NOT OPERATE THE
SURFACE GRINDER UNTIL EACH OPERATOR
COMPLETELY COMPREHENDS THE CONTENTS OF
THIS MANUAL.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 8

5) Operators must be in adequate physical condition,
mental health and not under the influence of any
substance (drugs, alcohol, etc.) which might impair
vision, dexterity or judgment. Working with the
SURFACE GRINDER is strenuous. If you have any
condition that might be aggravated by strenuous work,
check with your doctor BEFORE operating the
SURFACE GRINDER. Guide against the possibility of
back related injuries. Always lift the SURFACE
GRINDER with leg muscles and not with the back.

6) Prolonged use of the SURFACE GRINDER (or other,
similar machines) exposes the operator to vibrations
which may produce Whitefinger Disease (Raynaud’s
Phenomenon). This phenomenon reduces the hand’s
ability to feel and regulate temperature, produces
numbness and burning sensations and may cause nerve
and circulation damage and tissue necrosis. Anti­vibration systems do not guarantee that you will not
sustain Whitefinger Disease. Therefore, continuous and
regular users should closely monitor the condition of
their hands and fingers. After each period of use,

SAFETY PRECAUTIONS

exercise to restore normal blood circulation. If any of
the symptoms appear, seek medical advice immediately.

7) Clothing must be sturdy and snug fitting, but allow
complete freedom of movement. Never wear loose fitting
jackets, scarves, neckties, jewelry, flared or cuffed
pants or anything that could become caught on controls
or moving parts. Wear long pants to protect your legs.
Protect your hands with heavy duty, non-slip gloves to
improve your grip. Good footing is most important when
operating the SURFACE GRINDER.

Wear sturdy boots with non-slip soles. Steel-toed safety
shoes are highly recommended. Never wear tennis
shoes or other, similar type shoes which afford little or
no protection. Wear an approved safety hard hat to
protect the operator’(s’) head(s) where there is a danger
of head injuries. Noise, generated by the SURFACE
GRINDER and the actual process itself, can damage
your hearing. Wear approved sound barriers (ear plugs
or ear mufflers) to protect your hearing. Continuous and
regular operators should have their hearing checked
regularly.

8) Visually inspect the SURFACE GRINDER, components,
tools and accessories for damaged or worn parts.
BEFORE each use:
a) Disconnect the power source cable.

b) Clean and remove all accumulated foreign matter

from the wheels and determine that each rotates
freely.

c) Clean and remove all accumulated foreign matter

from inside the mainframe area.

d) Inspect the V-belt drive for proper tension, wear and

general condition. Replace each component as
necessary.

e) Inspect the multi-accessory disc and gimbal head

assembly for excessive wear and structural
integrity. Replace each component as necessary.
The multi-accessory disc rotating at high speed
during the specific process can be subject to high
wear rates if the installed attachment is not properly
maintained and/or replaced at regular service
intervals.

f) Determine that operator controls work freely, all

safety devices are operative and information decals
are readable.

g) Check to see that the SURFACE GRINDER and all

related accessories are in good, mechanical
condition BEFORE utilization.

h) Reconnect the power source cable as applicable.

9) Contact appropriate representatives to determine if/
where electrical cables, gas lines and other hazardous
items are buried under the work surface BEFORE
utilization. The SURFACE GRINDER and related
accessories are not insulated. Contact with buried

electrical cables, gas lines and other hazardous items
can result in electrocution and/or an explosion.

10) Know how the controls operate. Know how to stop the
electric motor quickly in an emergency. Always start
the electric motor according to the instructions as
outlined in this manual to minimize the possibility of
unexpected contact with the work surface. Unexpected
contact with the work surface can cause loss of
machine control, and the possibility of property damage
and/or personal injury.

11) Ground the electrically powered SURFACE GRINDER
motor securely. Determine that any “grounding” wire and/
or device is, in fact, properly grounding the motor. Failure
to properly ground the motor may cause an electrical
shock and/or electrocution, resulting in property
damage and personal, injury including death. Electrical
wiring and all connections should be performed by a
qualified electrician. The electric motor is designed to
operate from a 115 AC power source.

12) When operating the SURFACE GRINDERs on a surface
containing water or other electrically conducting liquid,
special precautions must be taken to minimize the
possibility of operator electrocution. Once such
precaution is to wire and operate the electric motor from
a clean, 20 Ampere, 115 Volt AC power source in
conjunction with a ground fault circuit interrupter (GFCI).
A GFCI is a safety device that disconnects power from
a circuit to a load when a potentially dangerous condition
occurs. The GFCI opens the circuit when the fault
current flow from a power line to a ground exceeds the
safe limit for humans.

The GFCI protects against harmful electrical shock to
a person caused by contact with a defective electrical
product. A GFCI differs from a fuse or circuit breaker. A
fuse or circuit breaker opens the circuit when the total
current flow in the power line exceeds the safe limit of
the power line. They are designed to protect against
fire caused by overheating of the power line. Use of a
GFCI gives on the job protection from electrical shock
hazards caused by ground faults in commercial,
industrial and residential applications. They are simple
and easy to use: plug a portable GFCI into any suitable,
grounded extension cord and plug the SURFACE
GRINDER into the GFCI for automatic protection
against ground faults.

For specific information, consult current National
Electrical Code® publications and OSHA publications
210-22D (or current revision) for construction sites and
555-3 (or current revision) for use around any area
containing water.

13) Never exceed the recommended capacities of the
SURFACE GRINDER. Refer to the Specifications
sections of this manual for more detailed information

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 9

SAFETY PRECAUTIONS

OPERATION

1) Give complete and undivided attention to the job at
hand. Do not chew gum, smoke and/or use smokeless
tobacco while utilizing the SURFACE GRINDER. Do
not attempt to eat and/or drink while utilizing the
SURFACE GRINDER. Determine that eyeglasses and/
or hearing aid devices are properly secured.

Use of the SURFACE GRINDER is strenuous and
causes fatigue. Help prevent the cause of an accident.
Plan to take work breaks as required to help maintain
proper mental and physical alertness.

2) This SURFACE GRINDER is not sealed or insulated.
Do not operate the SURFACE GRINDER in an explosive
atmosphere or near combustible materials. Refer to
current OSHA® rules and regulations.

3) The SURFACE GRINDER is designed for use by one
operator. Use of the SURFACE GRINDER by more than
one operator can lead to confusion and loss of control,
resulting in property damage and/or personal injury. If it
is felt that more than one person is required to operate
the SURFACE GRINDER, STOP and contact the
Customer Service Department for specific operational
and service/maintenance information. There is no charge
for this service.

4) Do not operate the SURFACE GRINDER with onlookers
close by. Caution all onlookers to stand clear. The
grinding process can result in flying particles being
emitted at high velocity and striking the operator and/
or onlookers. This can lead to the possibility of property
damage and/or personal injury. Keep all body parts,
loose clothing and foreign objects clear of the rotating
drum and flails.

and fingers. Always make sure the operator handle is
in good condition and free of moisture, pitch, oil or
grease. Wear gloves to improve your grip. Never leave
the SURFACE GRINDER running unattended.

7) Special care must be exercised on slippery conditions
and on difficult, uneven surfaces. Watch for cracks, high
spots and other, surface irregularities. Keep proper
footing and balance at all times. The normal use of this
machine is on level surfaces. Other terrains can be
dangerous and should be avoided. Only properly trained
operators should attempt these techniques.

8) Never start the electric motor with the SURFACE
GRINDER directly over cracked, uneven or irregular
surfaces.

9) Clean and remove all accumulated foreign matter from
inside the mainframe area after each use. This practice
will maximize bearing and V-belt service life.

10) Because this SURFACE GRINDER is classified as a
low cost, hand held, low horsepower, portable type
machine, it is limited in the number of practical and/or
suitable job applications. A particular job site, actual
surface conditions, job specifications and operator skill/
common sense may dictate that a different type of
machine (with characteristics of higher purchase cost,
being mounted to a carrier vehicle, with greater
horsepower and less mobility), method and/or process
be utilized to properly complete the job with the degree
of efficiency and safety required. Contact the Customer
Service Department for specific information regarding
suitable job applications, job sites surface conditions
and operator experience/skill/common sense
recommendations for this SURFACE GRINDER
BEFORE utilization. There is no charge for this service.

5) Start the electric motor according to the instructions
as outlined in this manual to minimize the possibility of
unexpected contact with the work surface. Unexpected
contact with the work surface can cause the loss of
machine control and the possibility of property damage
and/or personal injury.

6) Start and operate the SURFACE GRINDER only in a
well ventilated area. Operate the SURFACE GRINDER
only when/where visibility and light are adequate for
the job at hand. Work carefully. Always hold the operator
handle firmly with both hands. Wrap your fingers around
the handle, keeping it cradled between your thumbs

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 10

MAINTENANCE, REPAIR AND STORAGE

1) Use only genuine, approved replacement parts and

accessories for maintenance and repair. Use of parts
and accessories manufactured by others can result
in property damage and/or personal injury.

2) Follow the Service instructions as outlined in the

appropriate section of this manual.

3) Always stop the electric motor and disconnect the

power source cable BEFORE checking or working on
the SURFACE GRINDER.

4) Always properly maintain the SURFACE GRINDER.

Frequently check all fasteners and individual parts.
Built in safety features are effective only if they are
maintained in good working condition. Replace any
questionable part or assembly with a genuine, factory
approved, replacement part. Do not forsake proper
maintenance for the price of a few replacement parts.
Proper maintenance does not cost...it actually pays
dividends. Do not attempt any maintenance repair work
not described in this manual. Have such work
performed at your dealer’s service facility.

SAFETY PRECAUTIONS

5) Do not operate the SURFACE GRINDER without the

use of factory approved V-belt and diamond blade
guards that are maintained in proper structural
condition. Frequently inspect the guards for signs of
wear, cracks and other signs of fatigue. If there is
any question regarding the structural integrity and/or
condition of the belt guard, properly dispose and
replace with a genuine, factory approved, replacement
part only.

6) Maintain all safety and operation decals in proper

condition. If any decal becomes damaged and/or
unreadable, replace with a genuine, factory approved,
replacement part only.

7) The SURFACE GRINDER utilizes many self-locking

type hexagon head nuts to minimize the effects of
vibration. Replace all self-locking hardware with
genuine, factory approved, replacement parts only.

8) Consult the material supplied by the electric motor

manufacturer for specific information relative to proper
operational, lubrication and storage requirements.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 11

ASSEMBLY INSTRUCTIONS/OPERATIONS

Assembly

The SFG10E SURFACE GRINDER is shipped from the
factory secured on a specially designed wooden pallet
and protected from external damage by a corrugated carton
or wood crate. If shipped with a corrugated carton, the
SURFACE GRINDER can be secured to the pallet by wood
laths nailed to the pallet body. Remove the carton or crate
immediately upon receipt using suitable tools to remove
the nails.

REMOVING THE SURFACE GRINDER FROM THE
PALLET

Tools Required:

1 set of pliers.
1 claw hammer or a hammer and an appropriate pry bar.

The SURFACE GRINDER is secured to the pallet with
steel banding. Using the pliers, cut and remove the
banding. The SURFACE GRINDER can then be removed
from the pallet.

DANGERDANGER

DANGER

DANGERDANGER

WEAR SAFETY GLASSES AND OTHER APPROPRI­ATE SAFETY APPAREL WHEN CUTTING THE STEEL
BANDING AND/OR REMOVING THE CORRUGATED/
WOOD SHIPPING CRATE.

Visually inspect the shipment for freight damage and/or
missing parts. If shipping damage is evident, contact the
delivering carrier immediately to arrange for an inspection
of the damage by their claims representative. Federal law
requires that a claim be filed within a specific time period. If
missing parts are detected, notify your dealer who will assist
you in obtaining them.

The SURFACE GRINDER is shipped from the factory
completely assembled. If ordered with the SURFACE
GRINDER, multi-accessory attachments are normally
shipped separately to minimize the potential for loss during
shipment.

1) To contain loose materials within the platform area of
the SURFACE GRINDER as a direct result of a specific
grinding process. This includes materials removed from
the surface as well as any slurry mixture utilized to
help maximize material removal efficiencies.

2) To provide a method for a vacuum system to help
remove airborne dust related materials from within the
skirt assembly. Dust related materials are usually
created as a result of the grinding process. A specific
job application may require the reduction and/or
minimization of airborne dust related materials from the
atmosphere while the SURFACE GRINDER is being
operated. The kit includes a hose and necessary
hardware to connect the skirt assembly to the 3 inch
diameter vacuum attachment fitting located at the rear
of the machine. Use of the kit along with a suitable
vacuum system will not completely remove all airborne
and loose materials directly from the work surface.

DANGERDANGER

DANGER

DANGERDANGER

THE USE OF THE SFSG121000 SAFETY AND DUST
SHIELD ASSEMBLY KIT ALONG WITH A SUITABLE
VACUUM SYSTEM TO REMOVE HAZARDOUS
CLASSIFIED, AIRBORNE MATERIALS FROM THE
WORK SURFACE WILL NOT ELIMINATE THE
REQUIREMENT FOR PROPER SAFETY RELATED
EQUIPMENT, OPERATING PLAN AND/OR
PROCEDURES.

DANGERDANGER

DANGER

DANGERDANGER

USE OF THE SFSG121000 SAFETY AND DUST SHIELD
ASSEMBLY KIT ALONG WITH A SUITABLE VACUUM
SYSTEM WILL NOT COMPLETELY REMOVE ALL
LOOSE MATERIALS FROM THE WORK SURFACE.
HAZARDOUS CLASSIFIED, LOOSE MATERIALS MUST
BE REMOVED FROM THE WORK SURFACE BY PRO­CESSES AND/OR PROCEDURES MEETING THE
APPLICABLE OSHA AND/OR EPA REQUIREMENTS.

Check all fasteners for proper security. Consult a fastener
torque chart for the proper torque value if any fastener is
found to require retorquing.

After April 1, 1996 all single head SURFACE GRINDERS
are shipped from the factory with the SFSG121000 Safety
and Dust Shield Assembly Kit. The SFSG121000 Safety
and Dust Shield is designed to perform the following job
functions:

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 12

ASSEMBLY INSTRUCTIONS/OPERATIONS

Operation

THEORY OF OPERATION

The SFG10E SURFACE GRINDERS operate on the principle
of various multi-accessory attachments being utilized at
rotational speeds to make direct contact with a work
surface. Various types of multi-accessory attachments are
secured to a recess provided in the rotating, aluminum disc
located on the bottom of the machine. The specific type of
multi-accessory attachment utilized during the grinding
process directly affects the type of material removed, the
material removal rate and the resulting flatness and
smoothness of the surface.

The grinding process is directly controlled by these
conditions:

1) The use of a suitable mechanism (multi-accessory
attachment) of proper design and configuration to grind
the work surface and remove material while delivering
acceptable service life.

2) Sufficient static weight supporting the multi- accessory
attachment to allow it to effectively penetrate the work
surface and remove material.

3) Adequate horsepower capable of propelling the multi­accessory attachment against the work surface to
deliver acceptable productivity rates.

Since no two materials are exactly alike, no two work surface
materials can be penetrated and removed by the exact same
method. The nature of the grinding process, along with
operator experience, skill and common sense, would
suggest that efficient and productive material removal is a
matter of trial and error. Combinations of multi-accessory
attachment type, condition, and feed rate are direct factors
that will also determine the overall success of the job
application.

MULTI-ACCESSORY ATTACHMENTS AND APPLICATIONS

While individual multi-accessory attachment design and
configuration may vary, basic operational characteristics
are identical: impact upon a work surface material and
remove a percentage of the material. This common
operational characteristic has led to the development of
the following popular multi-accessory attachments:

Grinding Stones

Grinding stones are available in a number of grades,
including: C06 extra coarse, C10 coarse, C24 medium, C80
fine and C120 super fine grade. FIGURE 4. All stones
incorporate silicon carbide as the abrasive medium and
employ a clay binder as the matrix material. Vitrified type
stones utilize an oven baking process that produces greater
service life over other manufacturing processes. As the
clay material wears away, it exposes new, sharp, edges of

the imbedded silicon carbide material. All stones have the
identical 2" x 2" X 4" dimensions and are secured to the
machine by the use of a plastic wedge.

FIGURE 4

The designation system for the grinding stones utilizes a
system similarly utilized for most abrasive products: the
larger the number, the finer the grain structure and usually,
the smoother resulting finish.

a) The C06 and C10 coarse grade stones are the most
popular utilized stones and result in maximum material
removal rates. They are utilized for general grinding and the
removal of trowel marks, high spots and rough sections on
concrete surfaces. The average service life is approximately
4 to 10 hours.

b) The C24 medium grade stone will result in lower material
removal rates. It is utilized for finer finish grinding of concrete
and rough grinding on terrazzo and other types of stone
floor configurations. The average service life is approximately
6 to 10 hours.

c) The C80 fine grade stone will result in still lower material
removal rates. It is utilized for polishing concrete and
medium grinding on terrazzo and other types of stone floor
configurations with a water/slurry mixture only. The average
service life is approximately 8 to 20 hours.

d) The C120 super fine grade stone will result in the lowest
material removal rates. It is utilized for final polishing on
terrazzo and other types of stone floor configurations with
a water/slurry mixture only. The average service life is
approximately 40 to 75 hours.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 13

ASSEMBLY INSTRUCTIONS/OPERATIONS

Tungsten Carbide Grinding Block

This multi-accessory attachment is most often utilized on
larger concrete grinding projects where increased production
and service life are required. The block utilizes tungsten
carbide balls approximately 1/16 inch diameter that are
deposited in a molten matrix material during the
manufacturing process at a controlled rate. The end effect
is a multi layer deposit of tungsten carbide balls in the matrix
material. As the softer matrix material wears with use, it
exposes a new layer of fresh tungsten carbide balls to
continue the grinding process. The tungsten carbide grinding
block is considerably more aggressive than the C10 silicon
carbide grinding stone. With the ability to renew itself during
usage, the normal life expectancy for this accessory can
approach several hundred hours. The nominal dimensions for
the tungsten carbide grinding block is 2" x 2" x 4" and is secured
to the machine with a plastic wedge. FIGURE 5.

insert flails. In turn, these costs must be compared to
anticipated service life. All flails will eventually wear to the
point of requiring replacement. The amount of unproductive
time spent to replace worn flails on a job can be substantially
greater than the actual replacement cost of many flails. It
then becomes a balance between purchase cost,
productivity, service life and labor cost.

c) Surface finish and texture. The finest grained surface
finish available from the scarifying process is comparable
to a “swept or broomed” like finish. If a smooth, flat finish is
desired, the scarifying process must be followed with a
grinding or polishing type process. Many job requirements
may call for large amounts of material to be removed, but
followed with additional specifications requiring a finer
surface finish or texture. Many times these jobs dictate the
use of an aggressive flail configuration because of
productivity and cost considerations. Less aggressive flail
configurations can then be utilized for the final finishing
sequence. Generally speaking, the more aggressive the flail
configurations, the more coarse the resulting finish and
texture.

Many flail configurations are available to meet a wide variety
of job applications and surface material specifications. To
give additional perspective to each configuration, a rating
system of 1 to 10 (10 being highest) has been devised.

FIGURE 5

Scarifier Blocks

These multi-accessory attachments are comprised of flails
and spacer washers secured in a rigid steel case. FIGURE

6. Rotation of the multi-accessory disc causes the flails to
impact against the work surface with a variety of results.
Scarifier blocks are secured to the machine with plastic
wedges.

Several factors directly affect the selection of a flail design
for a specific job application:

a) The type and amount of material to be removed from the
work surface. Materials of higher yield and tensile strengths
along with the actual volume of material to be removed will
generally be the first factors under consideration.

b) Purchase cost versus service life. The original purchase
cost of plain, heat-treated steel flails must be compared
against the substantially higher costs of the tungsten carbide

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 14

FIGURE 6

Star Flail

The star flail is manufactured from high carbon steel that is
through hardened for additional service life. It is highly
effective for light cleaning or scarifying and delivers a finer
surface finish texture. FIGURE 7.

FIGURE 7

Suggested Applications:

1) Removal of thin coatings and encrusted accumulations.

2) Cleaning concrete and asphaltic surfaces

3) Removing thick material build-ups of greases, paints,
oils, vegetable powders and some resins from floors.

4) Light scarifying prior to the application of coatings,
toppings or sealers.

COST 1
PRODUCTIVITY 3
SERVICE LIFE 1
The star flail should be replaced when the outside diameter
is worn to approximately 1-5/16 inch or the inside diameter
elongates to approximately 3/4 inch.

Beam Flail

The beam type flail is manufactured from high carbon steel
that is through hardened for additional service life. It is highly
effective for scabbling or scarifying and delivers medium to
coarse surface finish texture. FIGURE 8.

FIGURE 8

Suggested Applications:

1) Medium duty asphalt and concrete scarifying.

2) Descaling steel decks.

3) Removing thick material build-ups of greases, paints,
oils, vegetable powders and some resins from floors.

4) Dried, fully cured, carpet and tile adhesive removal.

ASSEMBLY INSTRUCTIONS/OPERATIONS

COST 1
PRODUCTIVITY 5
SERVICE LIFE 2
The beam flail should be replaced when the outside diameter
is worn to approximately 1-5/16 inch or the inside diameter
elongates to approximately 3/4 inch.

Pentagonal Flail

The pentagonal type flail is manufactured from high carbon
steel that is through hardened for additional service life.
Each section of the five sided design features a small,
tungsten carbide insert that is held in position with copper
brazing. It is highly effective for scabbling or scarifying and
delivers medium to coarse finish texture. FIGURE 9.

FIGURE 9

Suggested Applications:

1) Heavy duty asphalt and concrete scarifying.

2) Heavy duty descaling of steel decks.

The pentagonal flail is designed for more aggressive and
rapid removal of a surface in comparison to the beam flail.
The addition of the tungsten carbide inserts contributes to
its long service life and higher production rates. The use of
tungsten carbide is also the main reason for the cost
differential between it and the other flails. The design
configuration yields a rather coarse surface finish and
texture. For many job applications, this finish and texture
will be satisfactory. Some applications may require an
additional smoothing process. If the resulting surface finish
is too coarse to meet specifications, it can be smoothed
with the use of the star or beam flail.

COST 10
PRODUCTIVITY 8
SERVICE LIFE 10
The pentagonal flail should be replaced when two successive
tungsten carbide inserts break off or the inside diameter
elongates to approximately 3/4 inch. In service, the flail
body will wear much faster than the tungsten carbide inserts.
The copper brazing used to weld the inserts into the body
can fail and an insert break off. The flail can still be used in
service. It will just wear a little faster and more uneven in

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 15

ASSEMBLY INSTRUCTIONS/OPERATIONS

that particular area. As a general rule, a pentagonal flail
can be utilized until body wear will no longer support the
tungsten carbide inserts.

Spacer Washer

Spacer washers are stamped from high carbon steel and
heat-treated for additional service life. FIGURE 10.
Spacer washers serve the following functions:

FIGURE 10

1) Reduces the number of flails required to be mounted
on the scarifier block, thus reducing purchase and
operational costs.

2) Arrange the flails in a sequence or pattern that minimize
“blind” or “open” spots. Normally, at least one spacer
washer is inserted between two consecutive flails. A
scarifier block set up with only star, beam or pentagonal
flails will not penetrate the work surface at satisfactory
rates. This configuration will minimize the hammering
or impact action of the flails.

Variances in material thickness and manufacturing
processes can affect the final thickness of both flails and
spacer washers. Because of this occurrence, trial and error
is important for assembling flails and spacer washer on the
scarifier block. By mixing and matching flails and spacer
washers of specific thicknesses, the required number of
components can be assembled on a block in a minimum
amount of time.

DANGERDANGER

DANGER

DANGERDANGER

USE ONLY FACTORY SUPPLIED SPACER WASHERS
ON THE SCARIFIER BLOCK. OTHER WASHER TYPES
AND/OR CONFIGURATIONS CAN PRODUCE ABNOR­MAL WEAR AND ELONGATION, RESULTING IN
COMPLETE SEPARATION FROM THE SCARIFIER
BLOCK. INADVERTENT SPACER WASHER SEPARA­TION CAN LEAD TO PROPERTY DAMAGE AND/OR
PERSONAL INJURY.

Scarifier Block Bushing

Scarifier block bushings are designed to be discarded
whenever the flails are replaced. FIGURE 11. Normal wear
should be uniform about the bushing circumference.
Uneven bushing wear would suggest the following problems:

FIGURE 1 1

1) Inadequate free play exists between the flails/spacer
washers and the scarifier block case. If the flails and
spacer washers do not have complete freedom of
movement, they will not be capable of properly rotating
about the scarifier block bushing. The result is bushing
wear usually confined to two locations that are 180
degrees apart. Variances in flail and spacer washer
thicknesses affect free play when assembled on the
scarifier block.

Because free play is also created during the scarifying
process due to actual flail and spacer washer wear, a
certain amount of “tightness” can sometimes be
tolerated without affecting the service life of the
bushings and flails. The specific amount of “tightness”
can usually be determined through trial and error. If the
flails and spacer washers appear too tight on the
scarifier block, remove an appropriate flail or washer
and reassemble the block. If a short, operational test
indicates normal component wear patterns, the apparent
problem has been solved. A general rule for
consideration: it is better to have the flails and spacer
washers a “little too loose than a little too tight”.

2) Mixing both worn and new flails on the scarifier block.
Proper flail action against the work surface material
requires that the flails be of the same approximate
dimensions. Flails with various inside and outside
dimensions will not impact the work surface material
with the same intensity and deliver the same results.
Flail bushing wear is directly proportional to the amount
of force it must supply against each individual flail. When
a bushing can no longer supply adequate force against
the flails, it will break, allowing the flails to be hurdled

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 16

ASSEMBLY INSTRUCTIONS/OPERATIONS

against the inside of the SURFACE GRINDER frame.
The more aggressive flails require greater forces to keep
them contained on the block. These forces, in turn,
create faster and/or uneven bushing wear rates.

Because scarifier bushings are a critical component of
the actual scarifying process, it is important that each
bushing be inspected on a regular basis to determine
proper structural integrity.

Wire brushes

Typical applications include light scarifying and cleaning of
concrete, asphalt, steel and tile surfaces. Wire brushes are
secured to the machine with plastic wedges. FIGURE 12.

Floor Brushes

Eleven inch diameter, silicon carbide impregnated, floor
brushes are available in a number of styles and designs for
general maintenance and cleaning projects. FIGURE 14.
They are especially effective cleaning soiled concrete floors
with the addition of water soluble solvents. These types of
brushes are directly mounted to the multi-accessory disc
with the included 1/2 inch x 2 inch long Grade 5 capscrews.
A kidney shaped drive plate is provided on the back side of
the brush. This drive plate fits into a recess provided in the
multi-accessory disc. FIGURE 15.

FIGURE 14

FIGURE 12

Wire brushes are available in a number of flat wire sizes and
resulting configurations. With continuous use, the flat wire will
take a “set” that can limit effectiveness and overall productivity.
FIGURE 13. For best results, flat wire brushes should be rotated
end for end in the aluminum multi-accessory disc a minimum
of once for every one hour of operation. External weight applied
to the SURFACE GRINDER will not normally increase
productivity rates and only accelerate flat wire wear rates.

FIGURE 13

FIGURE 15

SCRAPE-R-TACH® Industrial Floor Coatings Removal
System

This multi-accessory attachment is designed to remove
many urethanes, epoxies, paints, mastics and other, similar
material accumulations from concrete floor surfaces.
FIGURE 16. Each assembly utilizes two tungsten carbide
inserts set at a precise angle. The rotating inserts “cut and
shave” against the work surface material with a “scraping”
action that removes materials with highly productive results.
To increase the effectiveness of the inserts, the scraper
block design incorporates a Lord® type rubber mount that
helps absorb damaging shocks while allowing the inserts
to more easily follow local variations in the surface contour.
Units are secured to the machine with plastic wedges.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 17

FIGURE 16

The productivity of the product is directly dependent upon the
yield and tensile strength of the material being removed.
Material thickness has also shown to have a direct effect on
overall productivity. For example, the SCRAPE-R-TACH
system is a highly productive method for removing thick paint
accumulations from factory floors. Production rates of up to
several hundred square feet per hour can be realized. However,
many thin film ( ie: 5 mill thickness and thinner) urethane
coatings present a much more difficult removal problem. Since
removal rates are also directly affected by applied down force,
up to 300 lbs of external weight can be applied to the SURFACE
GRINDER to increase productivity. Cement blocks, stacked
bags of cement or weighted drums make excellent weights
and can be secured with “bungy” cords. FIGURE 17.

ASSEMBLY INSTRUCTIONS/OPERATIONS

shear from the concrete floor material. The occurrence is
also aggravated by higher ambient temperatures. This
problem can be significantly reduced with the addition of
various amounts of water or a water saturated, fine sand
combination placed on the floor. The use of the Safety and
Dust Shield Assembly with the SURFACE GRINDER is
highly recommended to contain the water/sand slurry mixture
from damaging surrounding walls and other vertical surfaces.

FIGURE 18

To index the tungsten carbide insert, proceed as follows:

Tools required:
1 each, 5/32 Allen wrench.

1) Clean the SCRAPE-R-TACH unit with a suitable safety
solvent to remove excess material build-up. Remove
as much foreign material from the female hexagon
socket area of the capscrew. This will allow the wrench
to make full contact and maximize the torque transfer
to the cap screw.

FIGURE 17

Each insert provides 8 scraping edges. As an edge become
dull and worn, the insert can be turned and reinstalled to
expose a new, sharp edge. FIGURE 18. When all 4 edges
of one side become worn and dull, the insert can be turned
over to expose an additional 4 edges.
Many materials such as adhesives, rubber deposits and
mastics have the tendency to extrude or smear rather than

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 18

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

Follow all safety precautions for the safety solvent.

2) Remove the cap screw from the unit. Clean the newly
exposed areas of the insert and SCRAPE-R-TACH unit
with the safety solvent. Clean and inspect the threaded
holes found in older units for excess wear. New style
SCRAPE-R-TACH units feature a through hole design.

3) Index the insert to expose a new edge. Reinstall the
capscrew and apply a torque value that properly seats
the insert firmly against the body of the unit.

ASSEMBLY INSTRUCTIONS/OPERATIONS

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

An insufficient seating torque value will allow the
insert to become loose from the unit body, resulting
in premature component wear and improper
scraping action. An excessive torque value will strip
the threads of the capscrew or unit body.

4) Determine that the unit body is free to rotate about the
5/16 inch diameter capscrew that retains the body to
the unit. A body that does not freely rotate indicates
that a material build-up exists between the rubber mount
and retaining capscrew exits. This build-up must be
removed by disassembling the body from the unit and
cleaning all contact areas with the safety solvent.
FIGURE 20.

The SCRAPE-R-TACH system is designed to be installed
with the edge of the tungsten carbide inserts facing the
direction of rotation. Markings are provided to indicate proper
direction of rotation.

Multi-Segmented, Dry Diamond Disc

Many times increased concrete removal rates can be
achieved with the use of multi-segmented, dry diamond
discs. FIGURE 21. These discs are designed to operate
dry or can also be utilized with water. If the wet option is
chosen, an external source for providing water must be
devised. No provision for water use is provided with the
SURFACE GRINDER. Typical discs are approximately 10
inch diameter and feature up to 20 diamond segments that
are welded or brazed to each assembly.

To install the multi-segmented, dry diamond disc, the
standard, aluminum, multi-accessory disc is first removed
from the SURFACE GRINDER. The diamond disc fastens
directly to the gimbal head with 3/8 inch diameter x 1 inch
long Allen head capscrews. FIGURE 22. The rear wheel
assembly is then placed in the lowest position to
compensate for the thickness variance of the diamond discs.
FIGURE 23.

FIGURE 20

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

Installing the SCRAPE-R-TACH system with the
tungsten carbide inserts facing opposite the
rotation direction will not deliver satisfactory
material removal rates and result in premature
component wear requiring early replacement.

FIGURE 21

FIGURE 22

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 19

FIGURE 23

ASSEMBLY INSTRUCTIONS/OPERATIONS

INSTALLING A MULTI-ACCESSORY ATTACHMENT (not
including multi-segmented, dry diamond discs) IN THE
ROTATING DISC

Tools Required:
1 Small Hammer
Parts Required:
6 each, P/N 29019-017 Plastic Mounting Wedge

DANGERDANGER

DANGER

DANGERDANGER

WHEN INSTALLING A MULTI-ACCESSORY ATTACH­MENT ON THE SURFACE GRINDER ALWAYS WEAR
THE APPROPRIATE SAFETY EYEWEAR AND AP­PAREL TO MINIMIZE THE POTENTIAL FROM FLYING
DEBRIS. FLYING DEBRIS CAN RESULT IN PROPERTY
DAMAGE AND/OR PERSONAL INJURY.

Diamond Segment Block

The diamond insert block is designed to compliment the
multi-segmented diamond disc where a quick changeover
feature to other attachments is desired.

Diamond segments are retained into a steel block assembly
and deliver up to 5 times greater productivity rates than the
silicon carbide stones. FIGURE 24. The design resists
clogging while delivering a conservative service life up to
15 times longer than the stones. Diamond is the ideal choice
for larger concrete removal projects and the removal of
epoxies, paints and many thin film coatings.

The concept is especially useful for removing a thin layer of
concrete in final preparation for a new coating application. Can
be used in both wet and dry job applications. Worn inserts are
easily replaced in a matter of seconds. Service life is dependent
upon many variables, but can approach 35,000 square feet
per set, making it a cost efficient solution for many job
applications.

1) Properly disconnect the extension cord or SURFACE
GRINDER from the power source.

2) Tilt the SURFACE GRINDER back until the operator
handle comes in contact with the surface. Appropriate
wheel chocks are recommended. FIGURE 25.

FIGURE 25

3) Mount the multi-accessory attachment into the slots
provided in the multi-accessory disc. If the attachment
is directional in design, determine that its mounting
position in the disc allows for proper operation.

FIGURE 24

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 20

4) Force a Mounting Wedge P/N 229019-017 into the area
between the multi-accessory attachment and the inside
rib of the aluminum disc by hand. The straight side of
the mounting wedge contacts the multi-accessory
attachment. The angled side of the mounting wedge
contacts the rib of the disc. FIGURE 26. An improper
mounting configuration is depicted in FIGURE 27.

FIGURE 26

ASSEMBLY INSTRUCTIONS/OPERATIONS

5) Using a hammer, strike the wider side of the mounting

wedge with controlled, direct blows to firmly seat the
multi-accessory attachment into the aluminum disc.
Usually one or two direct blows will be sufficient to
properly retain the attachment.

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

Do not apply excessive impact force to the mounting
wedge to cause splitting. Once the multi-accessory
attachment is seated in the aluminum disc, further
impact force on the wedge will not increase the
seating force.

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

Improper seating force created by an excessive blow
to the mounting wedge will not allow the attachment
to properly release from the aluminum disc if direct
contact with a foreign object is made. Such
occurrence can result in property damage and/or
personal injury. The correct seating force for a
specific job application is that which is sufficient to
retain the attachment, yet still allows it to release
from the aluminum disc when direct contact with a
foreign object is made.

FIGURE 27

DANGERDANGER

DANGER

DANGERDANGER

DO NOT OPERATE THE SURFACE GRINDER WITH THE
229019-017 MOUNTING WEDGES IN AN IMPROPER
MOUNTING CONFIGURATION. MOUNTING A WEDGE
BETWEEN THE MULTI-ACCESSORY ATTACHMENT
AND THE OUTSIDE RIB OF THE ALUMINUM DISC CAN
ALLOW THE WEDGE TO COME IN DIRECT CONTACT
WITH A VERTICAL WALL AND/OR FLOOR OBSTRUC­TION. SUCH OCCURRENCE CAN RESULT IN LOSS
OF MACHINE CONTROL, PROPERTY DAMAGE AND/
OR PERSONAL INJURY.
BEFORE OPERATING THE SURFACE GRINDER WITH
ANY MULTI-ACCESSORY ATTACHMENT, DETERMINE
THAT NO PORTION OF THE ATTACHMENT AND/OR
MOUNTING WEDGE EXTENDS BEYOND THE NORMAL
PERIMETER OF THE ALUMINUM DISC.

6) Determine that the multi-accessory attachment is in

full contact with the aluminum disc. If not in proper
contact, refer to REMOVING A MULTI-ACCESSORY
ATTACHMENT (not including multi-segmented, dry
diamond blades) FROM THE ROTATING DISC for proper
removal procedures.

7) Return the SURFACE GRINDER to its normal operating

position.

8) If the machine is to be used immediately, reconnect

the extension cord or SURFACE GRINDER to the power
source. Determine that the ON/OFF switch located on
the operator handle is in the OFF position.

DANGERDANGER

DANGER

DANGERDANGER

UNEXPECTED MACHINE START UP CAN RESULT IN
PROPERTY DAMAGE AND/OR PERSONAL INJURY.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 21

ASSEMBLY INSTRUCTIONS/OPERATIONS

REMOVING A MULTI-ACCESSORY ATTACHMENT (not
including multi-segmented, dry diamond discs) FROM THE
ROTATING DISC

Tools Required:
1 Small Hammer
1 Drift Punch or Small Pry Bar

DANGERDANGER

DANGER

DANGERDANGER

WHEN REMOVING A MULTI-ACCESSORY ATTACH­MENT FROM THE SURFACE GRINDER, ALWAYS
WEAR APPROPRIATE SAFETY EYEWEAR AND AP­PAREL TO MINIMIZE THE POTENTIAL FROM FLYING
DEBRIS. FLYING DEBRIS CAN RESULT IN PROP­ERTY DAMAGE AND/OR PERSONAL INJURY.

1) Disconnect the extension cord or SURFACE GRINDER
from the power source.

2) Tilt the SURFACE GRINDER back until the operator
handle comes in contact with the surface. Appropriate wheel
chocks are recommended.

3) The multi-accessory attachment can be removed by
both the use of a drift punch or small, pry bar. If utilizing the
drift punch, strike the narrow end of the mounting wedge
with controlled, direct blows until the attachment is released
from the aluminum disc. If utilizing the pry bar, position the
bar between the aluminum disc and the attachment. Use
controlled, direct blows to the bar in order to force the
attachment loose from the aluminum disc. FIGURE 28.

4) Return the SURFACE GRINDER to its normal operating
position.

5) If the machine is to be used immediately, reconnect
the extension cord or SURFACE GRINDER from the
power source. Determine that the ON/OFF switch located
on the operator handle is in the OFF position.

DANGERDANGER

DANGER

DANGERDANGER

UNEXPECTED MACHINE START UP CAN RESULT IN
PROPERTY DAMAGE AND/OR PERSONAL INJURY.

TRANSPORTING THE SURFACE GRINDER

The SURFACE GRINDER has an operational weight that
prohibits one person from loading and/or unloading it alone
by conventional, physical efforts.

DANGERDANGER

DANGER

DANGERDANGER

DO NOT ATTEMPT TO LIFT THE SURFACE GRINDER
UP INTO A TRANSPORTATION VEHICLE WITH THE
USE OF ONE PERSON ALONE. DO NOT ATTEMPT
TO LOWER THE SURFACE GRINDER FROM A TRANS­PORTATION VEHICLE WITH THE USE OF ONE
PERSON ALONE. LIFT AND/OR LOWER THE SUR­FACE GRINDER ONLY BY THE USE OF A POWER
TAILGATE UNIT, A SUITABLE HOIST UNIT OF
PROPER CAPACITY AND/OR CONFIGURATION OR
BY THE USE OF A PROPER QUANTITY OF PERSON­NEL IN PROPER PHYSICAL CONDITION.

FIGURE 28

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

Do not utilize excessive force when removing a multi­accessory attachment with the pry bar. Excessive
force can result in damage to the aluminum disc.
Proper removal techniques by both methods will
result in minimal damage to the aluminum disc.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 22

1) A lifting bail device can be used to facilitate lifting by a
mechanical device incorporating a chain and suitable
attachment device. The location of the lifting bail may
not always locate the exact position of the center of
gravity for the SURFACE GRINDER. Lifting handles are
also provided on both sides of the transmission case.
These handles can be utilized by personnel whenever
lifting/lowering the SURFACE GRINDER or as
attachment points for a chain sling whenever a suitable
hoisting device is utilized. FIGURE 29.

DANGERDANGER

DANGER

DANGERDANGER

EXERCISE EXTREME CAUTION WHEN UTILIZING A
MECHANICAL DEVICE FOR LIFTING THE SURFACE
GRINDER. UTILIZE THE MECHANICAL DEVICE IN
ACCORDANCE TO BOTH ITS STATED STATIC AND
DYNAMIC LOADING ENVELOPES. DO NOT UTILIZE
THE MECHANICAL DEVICE UNTIL THIS INFORMA­TION IS PROPERLY KNOWN AND UNDERSTOOD BY
ALL APPLICABLE PERSONNEL. FAILURE TO PROP­ERLY UTILIZE THE MECHANICAL DEVICE CAN
RESULT IN PROPERTY DAMAGE AND/OR PER­SONAL INJURY.

2) To minimize the possibility of damage to the
SURFACE GRINDER, always transport in its normal,
upright position. All equipment must be secured in/on
vehicles with suitable strapping or tie-downs. Personnel
should not be transported in the same compartment as
equipment and fuel supplies. Consult applicable OSHA,
AGA, CGA, etc. regulations for the proper transportation
flammable gases.

ASSEMBLY INSTRUCTIONS/OPERATIONS

ADJUSTING THE OPERATOR HANDLE HEIGHT

The SFG10E SURFACE GRINDER incorporates a handle
that can be adjusted to compensate for variances in operator
heights. Correct handle height can increase overall machine
productivity and reduce operator fatigue.

1) Loosen both knobs on the lower handle. FIGURE 30.

2) Pull the top handle until the desired height is reached.

3) Tighten both knobs on the lower handle.

FIGURE 29

FIGURE 30

STARTING THE SFG10E SURFACE GRINDER ON THE
JOBSITE

1) Position the SURFACE GRINDER on a flat and level

surface of firm foundation.

2) Determine that the ON/OFF switch located on the

operator handle is in the OFF position.

DANGERDANGER

DANGER

DANGERDANGER

UNEXPECTED MACHINE START UP CAN RESULT IN
PROPERTY DAMAGE AND/OR PERSONAL INJURY.

3) The motor is designed to operate from a clean, 20

ampere, 115 VAC, 60 Hz nominal power source. A clean
power source refers to the amperage available on the
individual electrical circuit selected. Additional electrical
products already utilizing the same circuit will reduce
the available amperage, resulting in starting and
operational difficulties.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 23

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

ASSEMBLY INSTRUCTIONS/OPERATIONS

DANGERDANGER

DANGER

DANGERDANGER

Operating the SURFACE GRINDER from a power
source of improper voltage and amperage will result
in un-repairable damage to the electric motor and
related controls.

4) The motor is equipped with automatic thermal protection
device that will stop it before major internal damage
can result. After the motor has cooled to an acceptable
temperature level, the switch must be manually
activated to restart. FIGURE 32.

FIGURE 32

To minimize the voltage drop to the motor, all extension
cords should be copper stranded, 8 AWG or larger. A
NEMA 6-20R twist-lock type receptacle is provided with
the SFG10E SURFACE GRINDER as a standard
accessory. The twist clock feature allows the extension
cord to be pulled by the SURFACE GRINDER without
becoming detached. Wire the NEMA 6-20R receptacle
to the appropriate extension cord that will be coupled
to the NEMA 6-20P plug provided on the SURFACE
GRINDER. FIGURE 33.

PROPERLY INSPECT ALL EXTENSION CORDS AND
WIRING DEVICES FOR STRUCTURAL INTEGRITY. DO
NOT UTILIZE A CORD WITH A WORN OR CUT OUTER
JACKET MATERIAL. DO NOT UTILIZE A CORD WITH
EXPOSED INNER WIRES OR INSULATION MATE­RIAL. DO NOT UTILIZE A CORD THAT HAS BEEN
REPAIRED WITH ELECTRICAL TAPE. USE OF A AN
EXTENSION CORD OF IMPROPER STRUCTURAL
INTEGRITY CAN RESULT IN PROPERTY DAMAGE
AND/OR PERSONAL INJURY.

DANGERDANGER

DANGER

DANGERDANGER

ALL ELECTRICAL WIRING MUST BE INSTALLED
AND/OR APPROVED IN ACCORDANCE TO LOCAL
ELECTRICAL CODES AND PRACTICES. AN IM­PROPER WIRING INSTALLATION CAN RESULT IN
PROPERTY DAMAGE AND/OR PERSONAL INJURY.

5) Determine that the power outlet to be utilized is properly
grounded. This can be accomplished with proper testing
equipment and procedures. If there are any questions
regarding the suitability of a specific power outlet,
contact the Customer Service Department for
assistance BEFORE utilizing the SURFACE GRINDER.
There is no charge for this service. A qualified electrician
can also be consulted. If a 115 VAC power outlet is
selected, it is recommended that a properly tested,
externally mounted, ground fault circuit interrupter
(GFCI) be utilized at all times as an additional safety
precaution. FIGURE 34.

FIGURE 33

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 24

FIGURE 34

DANGERDANGER

DANGER

DANGERDANGER

FOR MAXIMUM PROTECTION AGAINST A FAULT,
ALWAYS CONFIGURE THE GROUND FAULT CIRCUIT
INTERRUPTER TO BE PLUGGED INTO THE EXTEN­SION CORD. A CONFIGURATION WITH THE GROUND
FAULT CIRCUIT INTERRUPTER PLACED BETWEEN
THE POWER SOURCE AND THE EXTENSION CORD
WILL NOT AFFORD MAXIMUM PROTECTION
AGAINST A POTENTIAL FAULT.

6) Couple the NEMA 6-20R receptacle and the NEMA 6­20P plug together.

7) Grasp the operator handle with firm gripping. When
starting the electric motor, apply a down force directly
to the operator handle to help reduce the amount of
machine weight against the work surface. Turn the ON/
OFF switch to the ON position. Reduce the amount of
applied down force on the operator handle as the electric
motor attains its operational speed.

When operating on 115 VAC, the electric motor will
require additional starting time to help compensate for
the additional starting amperage requirement. This time
is usually within two seconds of activating the ON/OFF
switch.

8) The SFG10E SURFACE GRINDER is not equipped with
a centrifugal clutch assembly. The electric motor is
directly coupled to the multi-accessory disc by a V­belt/spur gear transmission.

DANGERDANGER

DANGER

DANGERDANGER

AS SOON AS THE ELECTRIC MOTOR HAS STARTED,
THE OPERATOR MUST BE IN A POSITION TO
ASSUME DIRECT AND FULL CONTROL OF THE
SURFACE GRINDER. FAILURE TO ASSUME DIRECT
AND FULL CONTROL CAN RESULT IN PROPERTY
DAMAGE AND/OR PERSONAL INJURY.

ASSEMBLY INSTRUCTIONS/OPERATIONS

OPERATING THE SURFACE GRINDER ON THE
JOBSITE

DANGERDANGER

DANGER

DANGERDANGER

THE GRINDING PROCESS PRODUCES EXCESSIVE
NOISE, VIBRATION AND FLYING DEBRIS. ALL
OPERATORS AND WORK PERSONNEL IN THE
VICINITY OF THE SURFACE GRINDER MUST WEAR
APPROPRIATE SAFETY EYE WEAR AND HEARING
PROTECTION DEVICES. OTHER SAFETY APPAREL
AND/OR PROCEDURES, DEEMED NECESSARY BY
SUPERVISORY PERSONNEL MUST ALSO BE WORN
AND/OR PRACTICED BY ALL APPROPRIATE
PERSONNEL.

DANGERDANGER

DANGER

DANGERDANGER

EXERCISE EXTREME CAUTION WHEN OPERATING
THE SURFACE GRINDER IN THE VICINITY OF DECK
INSERTS, PIPES, COLUMNS, OPENINGS, LARGE
CRACKS, UTILITY OUTLETS OR ANY OBJECT
PROTRUDING FROM THE SURFACE. CONTACT WITH
SUCH OBJECTS CAN LEAD TO LOSS OF MACHINE
CONTROL, RESULTING IN PROPERTY DAMAGE
AND/OR PERSONAL INJURY.

1) The SURFACE GRINDER incorporates a rotating disc
for mounting a wide variety of multi-accessory
attachments. Direct contact with a protruding
obstruction from the floor can result in rapid and jerky
directional movement of the machine. In most operating
situations, direct contact with such an obstruction will
result in the multi-accessory attachment becoming
dislodged from the rotating disc. This occurrence is
intended to protect the SURFACE GRINDER from
excessive damage and allow the operator to remain in
proper control of the machine.

9) The SFG10E SURFACE GRINDER is stopped by
moving the ON/OFF switch located on the operator
handle to the OFF position. For safety considerations,
it is also recommended that the extension cord be
disconnected from both the SURFACE GRINDER and
electric power source whenever the SURFACE
GRINDER is not in use on the job site.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 25

DANGERDANGER

DANGER

DANGERDANGER

ALWAYS MAINTAIN PROPER CONTROL OF THE
SURFACE GRINDER. IF AN OPERATOR LOSES CON­TROL OF THE MACHINE, A “RUNAWAY” SURFACE
GRINDER CAN RESULT IN PROPERTY DAMAGE
AND/OR PERSONAL INJURY. BECAUSE OF THE
UNIQUE OPERATING CHARACTERISTICS OF THE
SURFACE GRINDER, THERE IS NO PROVISION FOR
THE ELECTRIC MOTOR TO AUTOMATICALLY STOP
IF THE OPERATOR FAILS TO MAINTAIN PROPER
CONTROL.

DANGERDANGER

DANGER

DANGERDANGER

WHEN OPERATING THE SURFACE GRINDER ON
ABOVE GROUND FLOOR LEVELS, EXERCISE EX­TREME CAUTION TO PREVENT LOSS OF CONTROL
THAT COULD ALLOW THE MACHINE AND/OR OPERA­TOR TO FALL DOWN TO LOWER LEVELS. SUCH AN
OCCURRENCE CAN RESULT IN PROPERTY DAMAGE
AND/OR PERSONAL INJURY.

2) Productivity rates with the various multi-accessory
attachments can be increased with the addition of
external weight being applied to the area over the rotating
disc. FIGURE 36. Maximum allowable external weight
is 300 lbs. Exceeding this figure can result in permanent
structural damage to the SURFACE GRINDER.
Provisions for securing the weight by the means of
strapping or other, appropriate methods is provided.

ASSEMBLY INSTRUCTIONS/OPERATIONS

3) Proper operator posture and stance will enhance
operational safety and overall productivity. FIGURE 38.
For most job applications, operate the engine at
maximum, governed speed. Consult the material
supplied by the engine manufacturer and the
SPECIFICATIONS section for specific information.

4) The wide variety of potential work surface materials
along with the corresponding variety of job site
environments, makes it impossible to develop a
standardized operating procedure for the SURFACE
GRINDER. Use of the SURFACE GRINDER will require
constant trial and error testing until satisfactory results
are achieved. Experience gained over time and common
sense will help minimize the amount of necessary
testing. Many factors will directly affect the operating
parameters and/or techniques utilized for a specialized
job application. Some of these factors include:

a) Work surface material yield and tensile values. As

a general rule, these values will determine material
removal rate per unit of time. Materials with high
yield and tensile values will characteristically resist/
limit material penetration. For such materials, the
accepted procedure is to make a number of multiple
passes over the work surface rather than attempt
to make a single, deep pass. The net effect is to
actually increase productivity: more material
removed in less time. Other added benefits to this
technique are decreased vibration, less operator
fatigue and increased component service life.

FIGURE 36

DANGERDANGER

DANGER

DANGERDANGER

DO NOT OPERATE THE SURFACE GRINDER WITH­OUT ALL EXTERNAL WEIGHT PROPERLY SECURED
TO THE MAIN FRAME. A SUDDEN CHANGE IN MOVE­MENT OR DIRECTION CAN ALLOW THE
UNSECURED WEIGHT TO FALL OFF THE SURFACE
GRINDER, RESULTING IN LOSS OF MACHINE CON­TROL, PROPERTY DAMAGE AND/OR PERSONAL
INJURY. THIS PROCEDURE IS ESPECIALLY IMPOR­TANT WHEN OPERATING THE SURFACE GRINDER
ON FLOORS AND/OR SURFACES ABOVE GROUND
LEVEL.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 26

FIGURE 38

b. Higher material removal rates can sometimes be

achieved by making a series of shallow passes 90
degrees to each other to form a waffle like pattern.
This technique is especially useful when removing
deeper accumulations of rubber, paint, dirt debris,
etc. from industrial floors.

5) The grinding process on many work surface materials
can produce sparks, dust and other foreign particle
contamination.

DANGERDANGER

DANGER

DANGERDANGER

SPARKS PRODUCED BY THE ACTIONS OF MULTI­ACCESSORY OPTIONS AGAINST THE WORK
SURFACE (FOR EXAMPLE: STRIKING ANCHOR
BOLTS) MAY COME IN CONTACT WITH MATERIALS
THAT CAN RESULT IN A FIRE AND/OR EXPLOSION.
THIS OCCURRENCE CAN RESULT IN PROPERTY
DAMAGE AND/OR PERSONAL INJURY.

DANGERDANGER

DANGER

DANGERDANGER

THE CREATION OF DUST AND OTHER FOREIGN
PARTICLE CONTAMINATION FROM THE
OPERATIONAL PROCESS CAN RESULT IN
PROPERTY DAMAGE AND/OR PERSONAL INJURY.
FOR SUCH OPERATING CONDITIONS, ALWAYS
WEAR A NIOSH/MSHA APPROVED DUST/MIST
RESPIRATOR. CONSULT APPLICABLE OSHA
REGULATIONS FOR SPECIFIC INFORMATION.

FIGURE 39

DANGERDANGER

DANGER

DANGERDANGER

ALWAYS UTILIZE A VACUUM SYSTEM DESIGNED TO
OPERATE WITHIN THE SPECIFIC JOB SITE REQUIRE­MENT. DUST MATERIAL CAN MEET CLASS II OR
CLASS III SPECIFICATIONS OF THE NATIONAL ELEC­TRIC CODE® FOR HAZARDOUS LOCATION
CLASSIFICATIONS. CONSIDERATION MUST ALSO BE
GIVEN TO THE CREATION OF HAZARDOUS TYPE
MATERIALS REQUIRING SPECIFIC DISPOSAL PRO­CEDURES. DETERMINE THAT THE VACUUM SYSTEM
IS PROPERLY DESIGNED TO OPERATE WITHIN THESE
ATMOSPHERES. CONSULT CURRENT NATIONAL
ELECTRIC CODE®, OSHA AND ENVIRONMENTAL
PROTECTION AGENCY REGULATIONS FOR SPECIFIC
INFORMATION.

6) Dust and other particle contamination can be controlled
by the following methods:

a) The SURFACE GRINDER is equipped with a 3 inch

outside diameter vacuum tube adaptor located at
the rear of the machine. An industrial type vacuum
system and front shield assembly can be attached
to the SURFACE GRINDER to remove/control dust
and other particle contamination from the work
surface. A hose clamp is sometimes required to
properly secure the vacuum hose to the vacuum
tube. FIGURE 39.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 27

b) Water/sand slurry mixture applied directly to the

work surface can be an effective method of
reducing the effects of grinding and other material
removal processes. This method can be a
productive alternative when removing adhesives
containing asbestos. A negative effect of this
method is that the water/sand slurry mixture can
be classified as a hazardous material, requiring
proper disposal procedures.

7) Normal usage of the SURFACE GRINDER will allow
the build-up and accumulation of work surface materials
on interior surfaces. It is highly recommended that both
the interior and exterior surfaces be properly cleaned
after the completion of each usage.

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

OPERATIONAL PARAMETERS AND TECHNIQUES FOR
THE SFG10E SURFACE GRINDER

Failure to properly clean the interior surfaces of the
SURFACE GRINDER can result in dried material
build-up and accumulation directly affecting bearing
service life.

DANGERDANGER

DANGER

DANGERDANGER

EXERCISE EXTREME CAUTION WHEN UTILIZING
ANY SOLVENT TO REMOVE ACCUMULATED MATE­RIALS FROM THE SURFACES OF THE MACHINE AND
RELATED COMPONENTS. MANY SOLVENTS ARE
FLAMMABLE. DO NOT SMOKE OR INTRODUCE
FLAME IN THE WORK AREA. PROVIDE ADEQUATE
VENTILATION AND WEAR PROPER SAFETY AP­PAREL.

DANGERDANGER

DANGER

DANGERDANGER

PROPERLY DISPOSE OF ALL ACCUMULATED MA­TERIALS PER OSHA AND ENVIRONMENTAL
PROTECTION AGENCY CODES AND REGULATIONS.
MANY ACCUMULATED MATERIALS CAN BE CLAS­SIFIED AS HAZARDOUS AND REQUIRE PROPER
DISPOSAL PROCEDURES. CONTACT THE APPLI­CABLE GOVERNMENT AND/OR PRIVATE AGENCIES
FOR SPECIFIC INFORMATION.

Early Age Grinding

Early age grinding is an alternative to floating and trowelling.
It gets it name from the fact that the concrete is ground at
an early age, after it has set but before it has gained much
structural strength. The process usually involves the
following steps:

1) Normal screeding of the floor.

2) Smoothing the floor surface with a skip float.

3) Cover the floor with polyethane sheeting.

4) Removing the sheeting and grinding the floor down a
uniform depth of approximately 1/32 inch within 24 to
48 hours of the initial pouring.

The C06 and C10 silicon carbide grinding stones are usually
used for the process, although the multi segmented, dry
diamond blades can be use as an alternative with
substantially greater productivity rates. The main benefit of
early age grinding is that it eliminates late work in cold
weather. With ordinary finishing methods, a slab cast in the
morning of a cold weather day might not get finished
trowelled until very late at night. With grinding, the
construction crew are able to leave the job at the end of a
normal work day and return 1 or 2 days later to finish the
job. Early age grinding may not reduce the total number of
work hours, but it usually eliminates the need for work at
overtime rates, which can substantially increase total project
costs.

8) On job applications where the work process creates a
considerable amount of loose material, it can become
almost impossible to determine proper material removal
depths and the extent of work already accomplished.
The problem can be compounded if a vacuum system
is not utilized. Loose material should be removed by
sweeping or other, appropriate processes and the
SURFACE GRINDER utilized until conditions again
warrant removing the accumulated material.

STOPPING THE SFG10E SURFACE GRINDER

1) Stopping the SURFACE GRINDER is accomplished by
moving the ON/OFF switch located on the operator
handle to the OFF position. For safety considerations,
it is also recommended that the extension cord be
disconnected from both the SURFACE GRINDER and
electric power source whenever the SURFACE
GRINDER is not in use on the jobsite

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 28

One side benefit of early age grinding is that the process
demands less skill than conventional floating and trowelling.
This makes it an attractive process where skilled crew
personnel may not be available. It is also an excellent
procedure for concrete floors that will be eventually covered
by carpet or an applied coating.

Definitions of floor flatness and levelness

The terms flatness and levelness have poorly understood
meanings in everyday speech, but have important
distinctions in floor construction.

Flatness is defined as planarity or lack of curvature. A more
simple definition is that a flat floor is smooth and free of
bumps and dips. An unflat floor is bumpy and wavy.
Levelness is defined as horizontality or lack of slope. A
level floor is horizontal. A floor that is unlevel is sloped or
tilted.

A floor can be flat, but still not level. Some floors are
specifically designed to be unlevel; they can be intentionally
sloped for drainage considerations. Very few, if any, floors
are specifically designed to be unflat. Unfortunately, many
turn out that way. Flatness and levelness are both desirable,

ASSEMBLY INSTRUCTIONS/OPERATIONS

but have different implications for the floor user. Flatness is
critical where the user’s main concern is the behavior of
wheeled type vehicles. Levelness is critical where the user’s
main concern is with fixed structures such as shelving,
racks and the placement of machine tools.

Exceptions exist, but for most users, flatness is more
important than levelness. The reasoning is that fixed
equipment can be shimmed or adjusted to compensate.
However, it is not as easy to adapt a wheeled vehicle to a
floor that is not flat enough to allow for proper action.

Flatness and levelness also have different implications for
the floor contractor. Flatness is determined mainly by
finishing methods. Levelness is determined mainly by the
side forms.

Defined Versus Random Traffic Patterns

Floors are subject to two kinds of traffic patterns: defined
and random. On a defined traffic floor, vehicle movement is
confined to fixed paths. On a random traffic floor, vehicles
are free to roam, though inevitably, some traffic patterns
are used more than others.

The distinction is important because the two kinds of traffic
demand different methods of measuring surface regularity.
On a defined traffic floor, a continuous (or nearly continuous)
profile in each of the paths can be measured. But where
traffic is random, the possible travel paths are infinite in
number. What usually results is statistical sampling; selected
points or lines are checked and assumed that they represent
the whole floor surface.

The highest degree of surface regularity is found among
the defined traffic floors. Defined traffic floors allow the
designer and contractor to focus on a limited number of
critical areas. When a defined traffic floors is out of tolerance,
it is relatively easy to identify the defects for correction—
usually by employing a grinding process.

How to Define Surface Regularity

Since the middle 1980s, new methods of defining surface
regularity have been adopted as national standards. Older
methods will continue to be utilized, although they are less
effective. The following methods will be discussed:

1) The F number system for random traffic floors

The F number system utilizes a pair of numbers to define
surface regularity. The flatness number, Ff, is based upon
the curvature over a horizontal distance of 24 inches. The
levelness number, Fl, is based upon the floor slope over a
horizontal distance of 10 feet. The standard test for F
numbers is specified in ASTM E1155 and/or most recent
version.

With both Ff and Fl, higher numbers mean greater surface
regularity. Though the scale ranges from zero to infinity,
almost all floors have F numbers between 10 and 100 for
both flatness and levelness. Since the scale is linear, an
Ff50 floor is exactly twice as flat as an Ff25 floor.

Most F number specifications are written in a two tier format.
The overall F numbers apply to the floor taken as a whole.
The local F numbers apply to each individual slab and are
usually only one half to two thirds the overall values.

The overall F numbers are not just simple averages. ASTM
E1155 covers how to combine F numbers.

The two tier format encourages contractors to achieve good
surface regularity while allowing for minor defects. The
attempt is to pour the entire floor to the specified overall F
numbers. If, for instance, the construction crew has a bad
day and fails to meet the specified overall numbers for the
slab, the slab can still be accepted provided it meets the
specified local numbers.

Such an occurrence serves as a warning to the crew that it
must strive for a better performance on later slabs, so as to
bring the overall F numbers up to the specified values. If a
slab fails to meet even the specified local numbers, it must
be repaired or replaced, but such failures seldom occur if
all parties understand what is expected from the start.

Designers are not obligated to use this two tier format. Some
designers specify a single F number pair (Ff and Fl) which
applies to each individual slab. But this also raises the risk
that slabs will be rejected.

FIGURE 40 depicts the overall and minimum F numbers
for various floor classes. The floor classification is from the
American Concrete Institute. Although the F number system
is only a few years old, it offers these advantages:

2) The TR 34 system for defined traffic floors

Both methods are not of equal value. For random traffic
floors, F numbers provide the most complete and consistent
system. For defined traffic floors, the TR34 system is
superior.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 29

a) The system controls both flatness and levelness.

b) There is a standard test method.

c) The system recognizes the statistical nature of profile

testing on random traffic floors.

d) The system is infinitely variable.

FIGURE 40

One of the major limitations of the F number system is that
it does not control the surface regularity at joints. Because
joints are statistical anomalies, the standard test method
forbids measurements within 24 inches. The designer
specifying by F number has two methods to accommodate
the problem. The first solution is to locate joints at locations
where surface regularity is not important. The second
solution is to design specifications for the joints themselves.

The TR 34 tolerances for defined traffic floors

The TR 34 System divides defined traffic floors into three
categories:

a) Superflat

b) Category 1

c) Category 2

For each category, the TR 34 System specifies limits for
three properties:

ASSEMBLY INSTRUCTIONS/OPERATIONS

The Superflat category is intended for very narrow aisle
warehouses where the highest standards are required.
Category 1 is suggested for very narrow aisle warehouses
where the vertical lift height is between 26 and 43 feet.
Category 2 is for very narrow aisle warehouses where the
vertical lift height is under 26 feet and the use of low rise,
automatically controlled vehicles. No matter which category
of surface regularity is specified, it is accomplished by
measuring elevations on 12 inch centers. This is very similar
to an F number survey, but with an important distinction. In
an F number survey, the elevation profiles are made on the
floor at random. With the TR 34 System, the survey
measurements are made on the actual paths of the vehicles
that will utilize the floor.

Improving the wear resistance of concrete floors by
grinding with the SFG10E SURFACE GRINDER

Poor wear resistance can often be traced back to a surface
that is weaker than underlying levels of the pour. This
occurrence can result from bad finishing techniques,
improper curing or early freezing.

Where surface weakness is a problem, grinding can be a
solution. The process is similar to the early age technique.
The grinding depth is typically 1/16 to 1/8 inch. A large
project should not be attempted until a small test area has
proven that the technique will produce the desired results.
Usually only a square yard of floor is ground with the normal
wear tests performed.

Repair costs can be minimized by grinding only those floor
areas that accommodate traffic. For example, in a pallet
rack warehouse, it may be necessary to grind only the aisle
areas and not under any of the racks. The grinding process
can adversely affect the surface regularity. Where specific
properties are important, it may be necessary to survey
the floor during the grinding process to ensure that flatness
and levelness specifications are maintained.

Property 1 is the difference in elevation between two points
12 inches apart, measured in the direction of vehicle traffic.
This is the levelness tolerance.

Property 2 is the difference in slope over 24 inches
measured in the direction of vehicle traffic. This is the
flatness tolerance. It is identical as the 24 inch curvature
utilized in the F number system.

Property 3 is the difference in elevation between opposite
points in the left and right wheel path, measured
perpendicular to the direction of vehicle traffic. As with
Property 1, it is a levelness tolerance. The TR 34 System
specifies different values for Property 3 depending upon
whether the distance between left and right wheel paths is
more or less than 5 nominal feet

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 30

Cleaning concrete floors to improve the wear resistance
with the SFG10E SURFACE GRINDER

Clean concrete floors have a longer service life than dirty,
poorly maintained floors. Loose debris produces three-bodied
wear by allowing particles to roll between the traffic and the
floor surface. With some types of debris, especially when
lodged in vehicle wheels, wear can be immediate and
severe.
The SFG10E SURFACE GRINDER can be utilized with a
number of multi accessories to clean and extend concrete
floor service life. The SCRAPE-R-TACH® floor coatings
removal system readily removes food, oil and rubber
accumulations from high traffic floor areas. The Clean
Sweep™ silicon impregnated, rotary brushes along with a
biodegradable detergent applied to floors removes ground
in dirt and debris from shop and industrial floors. Dry diamond
segmented discs and blocks can be utilized to remove
surface imperfections.

ASSEMBLY INSTRUCTIONS/OPERATIONS

Maintenance/Service

PREVENTATIVE MAINTENANCE CHECK LIST

The normal operation of the SURFACE GRINDER produces
extreme dirt and dust, along with levels of random vibration.
Before operating the SURFACE GRINDER, the following
service list should be accomplished. This list is for reference
only and is not intended to be all inclusive. Other subject
areas can be added at the discretion of the owner(s) and/or
operator(s):

1) Check all fasteners for proper torque values. If a fastener

requires re-torquing, consult a torque chart for proper
value. Properly discard and replace any worn fastener
with a factory approved, replacement part.

2) Check the V-belts for wear. Adjust or replace as

necessary. Check pulleys for wear and proper alignment.
Many loose materials created as a result of operating
processes can be extremely abrasive.

3) Keep the SURFACE GRINDER clean. Wash the unit

after each use. Determine that the interior sections of
the frame are free of material build-ups. Such build-ups
can restrict the operating process and present a potential
safety hazard. Clean and remove any material build-up
from the SURFACE GRINDER after each use.

4) Remove material accumulations from the exterior

surfaces of the electric motor. The electric motor is a
totally enclosed, fan cooled (TEFC) design. Keep the
fan fins clear of material accumulations to enhance
airflow over the motor exterior for cooling purposes.

CHECKING V-BELT TENSION AND ALIGNMENT

Proper V-belt tension and alignment are essential for smooth
transmission of horsepower and extended service life.
Improper tension and alignment will accelerate V-belt wear
and contribute to decreased productivity. The V-belt is
tensioned at the factory with the maximum recommended
tension force. Check the belt tension at least two times
during the first day of operation as there will normally be a
rapid decrease in belt tension until it has been run in. Check
the belt tension every eight hours of operation thereafter
and maintain tension within the recommended range. The
correct operating tension for a V-belt drive is the lowest
tension at which it will not slip under peak load conditions.

Tools Required:

1 16 inch minimum length straightedge.
1 10 lbs minimum capacity, tension scale or belt tension
tool.

1) Disconnect the extension cord or SURFACE GRINDER
from the power source.

2) Position the SURFACE GRINDER on a suitable work
bench with the V-belt approximately at waist level.

3) Remove the belt guard from the main frame. Clean the
inside of the belt guard with an appropriate solvent.
Check for signs of wear and damage.

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

Observe all applicable safety precautions for the

DANGERDANGER

DANGER

DANGERDANGER

DO NOT PERFORM PREVENTATIVE MAINTENANCE
CHECKS WITH THE ELECTRIC MOTOR RUNNING.
STOP THE POWER SOURCE AND DISCONNECT THE
SPARK PLUG OR EXTENSION CORD BEFORE PER­FORMING ANY MAINTENANCE TO THE SURFACE
GRINDER. TURN THE ON/OFF SWITCH TO THE OFF
POSITION BEFORE RECONNECTING THE EXTEN­SION CORD. IMPROPER PROCEDURES CAN
RESULT IN PROPERTY DAMAGE AND/OR PER­SONAL INJURY.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 31

solvent.

4) Check the belt tension using the spring scale or belt
tension tool midway between the engine clutch pulley
and the transmission pulley. Belt tension should mea­sure approximately 0.22 inch at 3-1/4 to 4-3/8 lbs.
measured force range. FIGURE 41. If tension is within
specifications, proceed to Step 5. If tension is not within
specifications, refer to INSTALLING A REPLACEMENT
V-BELT for specific information.

MAINTENANCE/SERVICE

INSTALLING A REPLACEMENT V-BELT OR PULLEY

Tools Required:
2 1/2 wrenches.
1 16 inch minimum length straightedge.
1 10 lbs minimum capacity, tension scale or belt tension
tool.
1 belt tension tool.

FIGURE 41

5) Belt alignment is checked with the straightedge. Place
the straightedge squarely against the transmission
pulley. Properly aligned pulleys should also place the
straightedge squarely against the motor pulley. Remove
the straightedge and rotate the motor pulley 120
degrees. FIGURE 42. Recheck alignment with the
straightedge. Repeat the process until the motor pulley
is rotated a full 360 degrees. Maximum allowable
misalignment is + - 1/32 inch. If pulley alignment is not
within specifications, refer to INSTALLING A
REPLACEMENT V-BELT for specific information.

6) Install the belt guard to the main frame. Determine that
all safety related decals affixed to the belt guard are
fully readable. If any decal is not fully readable, replace
with a factory approved, replacement part only.

7) If the machine is to be used immediately, reconnect
the extension cord or SURFACE GRINDER to the power
source. Determine that the ON/OFF switch located on
the operator handle is in the OFF position

Parts Required:
1 V-Belt, P/N SFB45
1 Pulley Assy. P/N SFSG120400

1) Position the SURFACE GRINDER on a suitable work
surface with the V-belt approximately at waist level.

2) Remove the belt guard from the main frame. Clean the
inside of the belt guard with an appropriate solvent.
Check for signs of wear and damage. Secure in a proper
storage area.

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

Observe all applicable safety precautions for the
solvent.

3) Using the 1/2-inch wrenches, loosen the motor mounting
plate cap screws.

4) With the same wrenches, rotate the motor take-up cap
screws counterclockwise to loosen the V-belts and allow
the electric motor to slide toward the front of the main
frame. FIGURE 43.

DANGERDANGER

DANGER

DANGERDANGER

UNEXPECTED MACHINE START UP CAN RESULT IN
PROPERTY DAMAGE AND/OR PERSONAL INJURY.

FIGURE 42

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 32

FIGURE 43

MAINTENANCE/SERVICE

5) Remove the worn V-belt. Inspect the electric motor and
transmission pulleys for wear and damage. Install the
replacement belt, P/N SFB45.
a) Do not install replacement belt if the pulleys have

excessively worn grooves. Such pulleys should be
replaced to insure proper belt fit. Operating the V­belt in worn pulley grooves will accelerate wear,
reduce horsepower and torque levels and
significantly reduce component service life.

b) A V-belt should never be forced over a pulley. More

belts are broken from this cause than from actual
failure in service.

c) Keep the belt as clean and free of foreign material

as possible. Do not use belt dressing

6) Rotate the take-up cap screws clockwise until the V­belt has enough tension to not allow it to fall off the
pulleys.

REPLACING THE LORD® TYPE ELASTOMERIC MOUNTS
ON THE MULTI-ACCESSORY DISC

Lord® type elastomeric rubber mounts are utilized to allow
each multi-accessory disc to maintain full contact with the
work surface. The rubber mounts afford a constant flex rate
for the multi-accessory disc throughout its service life. The
rubber compound is resistive to the effects of ultraviolet
radiation and most common chemicals encountered when
operating the SURFACE GRINDER .

During the manufacturing process, the rubber mounts are
pressed into specially machined cavities in the disc
mounting plate. Under normal usage and job applications,
the Lord® type rubber mounts will deliver appropriate
performance for the expected service life of the SURFACE
GRINDER. However, an attachment mounted in the multi­accessory disc that directly strikes a vertical floor
obstruction with sufficient impact force can cause one or
more of the mounts to become separated from the mounting
plate. This occurrence will not allow the multi-accessory
disc to maintain full contact with the work surface. This
occurrence is also intended to protect the transmission gears
and bearings from costly damage and the operator from an
impact force that could cause personal injury.

1) Disconnect the extension cord or SURFACE GRINDER
from the power source.

2) Position the SURFACE GRINDER on a suitable work
bench with the multi-accessory disc at waist level

3) Remove the belt guard from the main frame. Clean the
inside of the belt guard with an appropriate safety
solvent. Check for signs of wear and damage. Secure
in a proper storage area.

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

Observe all applicable safety precautions for the
solvent.

4) Tilt the SURFACE GRINDER back until the operator
handle comes in contact with the surface. Appropriate
wheel chocks are recommended.

5) Utilizing the Allen wrench, remove the affected
aluminum multi-accessory disc (if still attached) from
the SURFACE GRINDER.

6) Utilizing the 9/16-inch wrenches, remove the cap screws
that retain the Lord® rubber mounts to both the mounting
plate and transmission shaft.

7) Inspect the appropriate cavities in the mounting plate
for wear and damage. Any nick or burr must be removed
by the use of an appropriate file, followed by the use of
240 grit sandpaper.

8) Apply the installation lubricant to the exterior surface
of the elastomeric mount to minimize damage when
pressing into the mounting disc. If the factory supplied
lubricant is not available, an acceptable alternative is
the use of common liquid soap.

Tools Required:
1 each, 5/16 allen wrench.
2 each, 5/8 wrenches.
1 each, arbor press of sufficient capacity and stability.

Parts Required:
Elastomeric Mount, P/N SFJ62502 (as required).
1 container each: Installation Lubricant (or approved
equivalent).

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 33

MAINTENANCE/SERVICE

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

Do not install an elastomeric mount without the use
of an approved lubricant. Installation without an
approved lubricant can produce tears in the mount,
resulting in substandard operational performance
and service life.

9) Support the elastomeric mount, socket and mounting
plate as depicted in FIGURE 50. The mounting plate
must be suspended from the arbor press to allow the
mount to clear when the pressing process is completed.
A short section of 1-1/2 inch inside diameter steel tubing
can be utilized for this purpose. Using the arbor press,
apply a steady force in a straight line direction to the
mount until it fully penetrates the cavity in the mounting
disc. Do not attempt to push the elastomeric mount
through the mounting disc with excessive force.
Damage to the elastomeric mount will result.

10) Reassemble the mounting disc to the transmission shaft.

11) Reassemble the mounting plate to the mounting disc.

12) Reassemble the aluminum multi-accessory disc to the
mounting plate.

13) Check to determine that the replacement elastomeric
mounts allow for proper position of the aluminum multi­accessory disc. If the elastomeric mounts are not
properly positioned, they will require removal and
reinstallation. The removal process can produce tears
and abrasions in the mount that will require new
replacements.

LUBRICATION REQUIREMENTS

Parts Required:

1 each, standard grease gun filled with one of the following:
ESSO Beacon 325, Shell Alvania #2, Chevron SRI, or
equivalent.

1 each, container of dry film lubricant.

1) Lubricate the caster wheel bearings with a dry film
lubricant only. Dry film lubricants dry immediately upon
contact. Use sparingly. Excess lubricant will attract the
fine grained, powdered materials described and directly
affect bearing service life.

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

Do not lubricate the caster wheels with any type of
grease material. Grease will attract foreign material
accumulations that can accelerate bearing wear.

2) The transmission gears are supported by extra capacity,
ball bearing units. Bearings are lubricated at the time of
manufacture and do not require additional servicing
when placing the unit in initial service. Zerk grease
fittings can promote improper service schedules and
an excessive amount of over lubrication. Excess
grease escaping from around the bearing insert seals
will attract foreign material accumulations that can
drastically shorten their service life. Excessive amounts
of grease in the bearing race cavity can actually
increase friction and resulting heat increases that can
also dramatically shorten bearing service life.

FIGURE 50

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 34

FIGURE 51. LUBRICA TION POINTS

3) The transmission gears are lubricated at the time of
assembly with approximately 24 ounces of Lubricate
GR132 grease or equivalent. This lubricant has an EP
additive to better allow it to cling to the gears. The
transmission should not require additional lubrication
or the lubrication to be changed until service work to
the gears is performed. FIGURE 51.

4) Standard greasing intervals will range from once every
8 hour work day to approximately once every work week.
Always maintain sufficient grease around the
circumference of the bearing insert to provide its self­aligning feature and prevent the formation of corrosion.

5) Do not apply belt dressing materials to the V-belts for
the purpose of minimizing slippage. These products
typically attract foreign material accumulations that can
accelerate component wear. Excessive V-belt slippage
can be eliminated with proper V-belt tension and
alignment.

ELECTRIC MOTOR SERVICE

The electric motor is capable of operating for many years
with a reasonably small amount of maintenance. Before
attempting to service the motor, disconnect the SURFACE
GRINDER from the power source. Clean the motor surfaces
periodically, preferably with a vacuum cleaner. Heavy
accumulations of dirt and lint will result in overheating and
premature failure of the motor.

MAINTENANCE/SERVICE

The electric motor is equipped with higher capacity ball
bearings and under normal service and ambient temperatures
should not require relubrication for many years. If you feel
that the motor requires relubrication, contact the local
representative of the motor manufacturer for specific
information.

The seals utilized with the motor are intended to deliver a
longer service life in a concrete dust environment. When
replacing the seals, utilize only components meeting the
original factory specifications.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 35

TROUBLESHOOTING

Troubleshooting

ELECTRIC MOTOR

MOTOR FAILS TO START

ON/OFF switch in the OFF position. Turn the switch to the
ON position.

SURFACE GRINDER and/or extension cord is not plugged
into the power source. Determine that all electrical
connections have been properly made. The NEMA 6-20
Series cap and receptacle set is of a twist lock configuration
and requires a twist motion to ensure a proper connection.

Improper extension cord size and capacity. Operate the
SURFACE GRINDER with copper stranded, 8 AWG or larger
extension cords. Improper extension cord size and capacity
will result in significant heat rise and corresponding voltage
and amperage drop.

Thermal protection device activated. To protect the motor
against heat related damage, an automatic thermal protection
switch is provided near the voltage selection switch. High
operating temperatures will activate the switch and shut the
motor off. After the motor has cooled to an acceptable
temperature level,depress the switch to restart.

ELECTRIC MOTOR LOSES POWER

Improper extension cord size and capacity. Replace with
cords meeting the required specifications.

Excessive extension cord length. Even with proper
extension cord size and capacity, excessive cord length
can reduce the available voltage and amperage to the motor.
Measure the available voltage to the motor where the
extension cord connects to the SURFACE GRINDER with a
voltmeter. Reduce the extension cored length as required to
achieve the minimum voltage operating specification as
required by the motor manufacturer.

Insufficient available voltage and amperage at the power
source. Measure the available voltage at the power source
(usually a receptacle) with a voltmeter. If the available voltage
is below the minimum operating specification as required by
the motor manufacturer, utilize an alternative power source.

Worn or damaged gimbal head Lord® rubber mounts.
Replace mounts.

Accumulation of foreign material on the multi-accessory
attachment. Clean and/or replace the attachment
components as necessary.

Flails and spacer washers are mounted too tight on the
scarifier frame. Remove and/or replace flails and spacer
washers. See MULTI-ACCESSORY ATTACHMENTS AND
APPLICATIONS.

EXCESSIVE JUMPING ON THE WORK SURFACE

Incorrect installation of the attachment in the aluminum
rotating disc. See INSTALLING A MULTI- ACCESSORY
ATTACHMENT ON THE ROTATING DISC.

Worn or damaged gimbal head Lord® rubber mounts.
Replace mounts.

Loose gimbal head fasteners. Retorque fasteners as
required.

ACCELERATED V-BELT WEAR

Misaligned and/or improperly tensioned pulleys. Readjust
pulleys and V-belt. See SERVICE section.

Worn pulleys. Replace pulleys as required. See INSTALLING
A REPLACEMENT V-BELT OR PULLEY.

Improper V-belt. Replace with a name brand B45 series V­belt. See INSTALLING A REPLACEMENT V-BELT OR
PULLEY.

ACCELERATED BEARING WEAR AND/OR FAILURE

Misaligned and/or improperly tensioned pulleys. Readjust
pulleys and V-belt. See SERVICE section.

Bent transmission input or output shaft. Replace affected
shaft(s).

Improper lubrication. See LUBRICATION REQUIREMENTS.

UNEVEN GRINDING ACTION

Excessive material build-up on the caster wheel face
surface. Remove the material.

Excessive caster wheel bearing wear. Replace the caster
wheel. Excessive axle wear. Replace axle.

Improper motor cooling. See ELECTRIC MOTOR SERVICE.

Excessive load to the motor. See OPERATING THE
SURFACE GRINDER ON THE JOBSITE.

OPERATIONAL PROBLEMS
UNEVEN MULTI-ACCESSORY ATTACHMENT WEAR

Incorrect installation of the attachment in the aluminum disc.
See INSTALLING A MULTI-ACCESSORY ATTACHMENT
ON THE ROTATING DISC.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 36

Flails and/or spacer washers are mounted too tight on the
scarifier frame. Remove and/or replace flails and spacer
washers. See MULTI ACCESSORY ATTACHMENTS AND
APPLICATIONS.

Mixing new and worn flails, silicon carbide stones, etc.
Remove and replace with components of the same,
approximate size and diameter. See MULTI ACCESSORY
ATTACHMENTS AND APPLICATIONS.

Storage

Proper procedure for long term storage of the SURFACE
GRINDER will protect it against the effects of corrosion
and damage. If the SURFACE GRINDER is not to be
operated for a period of 30 days or more, proceed to store
as follows:

1) Clean all accumulated foreign material from the
SURFACE GRINDER utilizing an appropriate
safety solvent.

CAUTION

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

Observe all applicable safety precautions for the
solvent.

2) Check all visible parts for wear, breakage or damage.
Order any part not required to make the necessary
repair. This will avoid a needless delay when operating
the SURFACE GRINDER at next use.

3) Apply a dry film lubricant to all exposed metal
components to prevent the formation of rust.

STORAGE

4) Store the SURFACE GRINDER inside. If the SURFACE
GRINDER must be stored outside, protect it with a
suitable covering.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 37

SPECIFICATIONS

Specifications

STRUCTURE ................................................................... Unitized, Welded Steel Plate

DRIVE REDUCTION SYSTEM ........................................ B45 Series Belt/Pulley/Spur Gear transmission.

MAXIMUM GRINDING WIDTH ........................................ 10 inches (254 mm)

OVERALL MACHINE WIDTH ........................................... 27-1/2 inches (699 mm)

OVERALL MACHINE LENGTH ........................................ 55.25 inches (1,403 mm)

TYPICAL OPERATOR HANDLE HEIGHT ........................ 38 inches (965 mm)

V ACUUM CLEANER CONNECTION DIAMETER ............. 3 inches (76 mm)

BASIC WEIGHT .............................................................. 235 lbs (107 kg)

SFG10E ELECTRIC MOTOR, 1.5 hp, 1725 RPM, 13.7 amperes @ 115 VAC, 60 Hz. The electric motor requires a clean
(no other electric products on the same circuit) 20 ampere capacity circuit to properly function on 115 VAC, 60 Hz.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 38

NOTE PAGE

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 39

EXPLANATION OF CODE IN REMARKS COLUMN

The following section explains the different symbols and
remarks used in the Parts section of this manual. Use the
help numbers found on the back page of the manual if there
are any questions.

NOTICE

The contents and part numbers listed in the parts
section are subject to change without notice. Multiquip
does not guarantee the availability of the parts listed.

SAMPLE PARTS LIST

NO. PART NO. PART NAME QTY. REMARKS

1 12345 BOLT .....................1 .....INCLUDES ITEMS W/%

2% WASHER, 1/4 IN. ..........NOT SOLD SEPARATELY

2% 12347 WASHER, 3/8 IN. ..1 .....MQ-45T ONLY

3 12348 HOSE ..................A/R ...MAKE LOCALLY

4 12349 BEARING ..............1 .....S/N 2345B AND ABOVE

NO. Column

Unique Symbols — All items with same unique

symbol

QTY. Column

Numbers Used — Item quantity can be indicated by a

number, a blank entry, or A/R.

A/R (As Required) is generally used for hoses or other
parts that are sold in bulk and cut to length.

A blank entry generally indicates that the item is not sold
separately. Other entries will be clarifi ed in the “Remarks”
Column.

REMARKS Column

Some of the most common notes found in the “Remarks”
Column are listed below. Other additional notes needed
to describe the item can also be shown.

Assembly/Kit — All items on the parts list with the
same unique symbol will be included when this item is
purchased.

Indicated by:

“INCLUDES ITEMS W/(unique symbol)”

(@, #, +, %, or >) in the number column belong to the
same assembly or kit, which is indicated by a note in the
“Remarks” column.

Duplicate Item Numbers — Duplicate numbers indicate
multiple part numbers, which are in effect for the same
general item, such as different size saw blade guards in
use or a part that has been updated on newer versions
of the same machine.

NOTICE

When ordering a part that has more than one item
number listed, check the remarks column for help in
determining the proper part to order.

PART NO. Column

Numbers Used — Part numbers can be indicated by a

number, a blank entry, or TBD.

TBD (To Be Determined) is generally used to show a
part that has not been assigned a formal part number
at the time of publication.

A blank entry generally indicates that the item is not sold
separately or is not sold by Multiquip. Other entries will
be clarifi ed in the “Remarks” Column.

Serial Number Break — Used to list an effective serial
number range where a particular part is used.

Indicated by:

“S/N XXXXX AND BELOW”
“S/N XXXX AND ABOVE”
“S/N XXXX TO S/N XXX”

Specifi c Model Number Use — Indicates that the part
is used only with the specifi c model number or model
number variant listed. It can also be used to show a
part is NOT used on a specifi c model or model number
variant.

Indicated by:

“XXXXX ONLY”
“NOT USED ON XXXX”

“Make/Obtain Locally” — Indicates that the part can
be purchased at any hardware shop or made out of
available items. Examples include battery cables, shims,
and certain washers and nuts.

“Not Sold Separately” — Indicates that an item cannot
be purchased as a separate item and is either part of an
assembly/kit that can be purchased, or is not available
for sale through Multiquip.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 40

SFG10E SURFACE GRINDER 1 TO 3 UNITS

Qty. P/N Description

1 ............ SF3100081 .............. CABLE, THROTTLE

1 ............ SFSG120330 ........... SWITCH, 115V

2 ............ SFB45 ...................... V-BELT, TRANSMISSION

SUGGESTED SPARE PARTS

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 41

OPERATOR HANDLE ASSY.

OPERATOR HANDLE ASSY.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 42

OPERATOR HANDLE ASSY.

OPERATOR HANDLE ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 SFSG120180 HANDLE, LOWER 1
2 SFSG120110 HANDLE, TOP 1
3 SF3100030 THROTTLE, TWIST CONTROL, PLASTIC, COMPL. 1
4 SFSG120415 GRIP, 7/8", BLACK 1
5 SFSG120280 CLAMP, HOSE 2
6 SFSG120190 COVER, SWITCH 1
7 SF6600900 MOUNT, RUBBER 2
8 SFWS277 ASSEMBLY, SWIVEL 1
9 SFSG120350 SPRING, COMPRESSION 1
10 SFCS160300 GROMMET 1
11 SFSG120340 E-CLIP, 7/32" EXTERNAL 1
12 SF3100081 CABLE, THROTTLE 1
13 SFSG120330 SWITCH, 115V 1
14 SFSG120050 KNOB ASSY 2
15 SF37041300 SCREW, MACHINE, PAN HEAD PHILLIPS,

1/4-20 UNC X 1-5/8", PLATED 5
16 SFSG120170 CAM, SWITCH 1
17 SFSG120150 TUBE, PIVOT 1
18 SFSG120160 LEVER, SWITCH 1
19 SFSG120380 SCREW, WOOD, FLAT HEAD PHILLIPS, #12 X 7/8" 2
20 SF17060000 WASHER, FLAT, 3/8", PLATED 2
21 SF16040000 WASHER, LOCK, 1/4", PLATED 5
22 SF90040000 NUT, ACRON, 1/4-20 UNC, PLATED 5
23 SFCS161000 EXTENSION CORD, GFCI 1
24 SFWIRE NUT Y NUT, WIRE, YELLOW 3
25 SFSG120260 CABLE, SWITCH TO PLUG 1
26 SFSG120270 CABLE, SWITCH TO MOTOR 1
27 SFHUB4720C PLUG, TWIST LOCK, MALE, 15A 1
28 SFCS160210 PIN WITH LANYARD 2
29 SF62081400 BOLT, SHOULDER, 1/2" X 1-3/4" 2
30 SFCS160340 BUSHING, BRONZE, 1/2" ID 4
31 SF86060000 NUT, HEXAGON, FLANGE, 3/8-16 UNC, PLATED 2
32 SFCG5050 RELIEF, STRAIN 2
33 SF801 NUT, BULKHEAD (INCLUDED WITH ITEM 32) 2
34 SF15060800 SCREW, CAP, 3/8-16 UNC X 1", PLATED 2
35 SF16060000 WASHER, LOCK, 3/8", PLATED 2
36 SF15050400 SCREW, CAP, 5/16-18 UNC X 1/2", PLATED 4
37 SF16050000 WASHER, LOCK, 5/16", PLATED 4
38 KIC172 RING, KICK OUT 2

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 43

ELECTRIC MOTOR ASSY.

ELECTRIC MOTOR ASSY.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 44

ELECTRIC MOTOR ASSY.

ELECTRIC MOTOR ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 SFSG120030 MOTOR, ELECTRIC, 1-1/2 HP, 115 VAC 1
2 SFSG120250 MOUNT, ELECTRIC MOTOR 1
3 SFCG5050 RELIEF, STRAIN 1

4 SF801 NUT, BULKHEAD (INCLUDED WITH ITEM 3) ............................................. REFERENCE

5 SFSG120400 PULLEY 1
6 SF31050600 SCREW, SET, CUP POINT, 5/16-18 UNC X 3/8"

(INCLUDED WITH ITEM 5) 1
7 SF63030800 KEY, SQUARE, 3/16" X 3/16" X 1" 1
8 SFCS80470 SCREW, CAP, 3/8-16 UNC X 3-1/2", FULL THREAD, PLATED 2
9 SF17060000 WASHER, FLAT, 3/8", PLATED 6
10 SF16060000 WASHER, LOCK, 3/8", PLATED 4
11 SF18060000 NUT, HEXAGON, 3/8-16 UNC, PLATED 6
12 SF17040000 WASHER, FLAT, 1/4", PLATED 4
13 SF53050000 NUT, HEXAGON, NYLOC, 5/16-18 UNC, PLATED 4
14 SF15050800 SCREW, CAP, 5/16-18 UNC X 1", PLATED 4
15 SFB45 BELT, V TYPE 1

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 45

WHEEL DOLLY ASSY.

WHEEL DOLLY ASSY.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 46

WHEEL DOLLY ASSY.

WHEEL DOLLY ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 SFSG240190 ARM, SWING 2
2 SFSG240260 WHEEL 2
3 SFSG120370 SCRAPER, WHEEL 2
4 SF62121200 BOLT, SHOULDER, 3/4-10 UNC X 1-1/2" 2
5 SF17120000 WASHER, FLAT, 3/4", PLATED 2
6 SF22022400 PIN, COTTER, 5/32" X 1-1/2", PLATED 2
7 SF20031200 PIN, ROLL, 3/16" X 1-1/4", PLATED 2
8 SF15081000 SCREW, CAP, 1/2-13 UNC X 1-1/4", PLATED 2
9 SF16080000 WASHER, LOCK, 1/2", PLATED 2
10 SF6600410 BEARING, OILITE 2
11 SF17100000 WASHER, FLAT, 5/8", PLATED 2
12 SF18100000 NUT, HEXAGON, 5/8-11 UNC, PLATED 2
13 SFSG120200 AXLE, PLATED 1

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 47

FRAME ASSY.

FRAME ASSY.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 48

FRAME ASSY.

FRAME ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 SFSG120010 FRAME, MAIN 1
2 SFSG120360 WEIGHT 1
3 SFSG120020 COVER, BELT 1
4 SFSG120410 PULLEY 1
5 SF91060600 SCREW, THUMB, 3/8-16 UNC X 3/4", PLATED 2
6 SF34061600 SCREW, MACHINE, ROUND HEAD, 3/8-16 UNC X 2", PLATED 2
7 SFSG240140 DISC, MULTI-ACCESSORY, LH 1
8 SFSG240130 BAR, MOUNTING 1
9 SFSG240120 DISC, MOUNTING 1
10 SFSG120240 SHAFT 1
11 SFHSF20516G BEARING 2
12 SF516098 RING, SNAP 2
13 SFSG120130 CONNECTOR, GREASE, 1/4-28 UNF 2
14 SF18060000 NUT, HEXAGON, 3/8-16 UNC, PLATED 8
15 SF16060000 WASHER, LOCK, 3/8", PLATED 8
16 SF31050600 SCREW, SET, CUP POINT, 5/16-18 UNC X 3/8"

(INCLUDED WITH ITEM 4) 1
17 SF63041200 KEY, SQUARE, 1/4" X 1/4" X 1-1/2" 1
18 SF53070000 NUT, HEXAGON, LOCKING, 7/16-14 UNC, PLATED 6
19 SFJ62502 MOUNT, RUBBER 6
20 SF15071600 SCREW, CAP, 1/16-14 UNC X 2", PLATED 3
21 SF60061200 SCREW, SOCKET, 3/8-16 UNC X 1-1/2", PLATED 4
22 SF27071800 SCREW, COUNTERSUNK, 7/16-14 UNC X 2-1/4" 3
23 SFSP80590 FITTING, GREASE, STRAIGHT 2
24 SFSG120120 CONNECTOR, GREASE, 1/8 PIPE 2
25 SFSG120140 HOSE, GREASE, 5/32", CLEAR (13" LENGTH) 2

26 SF6600560 TIE, NYLON, 6" LONG 1

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 49

SAFETY AND DUST SHIELD ASSY.

SAFETY AND DUST SHIELD ASSY.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 50

SAFETY AND DUST SHIELD ASSY.

SAFETY AND DUST SHIELD ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1# SFSG120230 SKIRT ASSY 1
2# SFSG120220 BUMPER, RUBBER 1
3# SFSG120060 HOSE, VACUUM 1
4# SF56480000 CLAMP, HOSE, 3" 2
5# SFSG120040 STRAP, SKIRT 2
6# SF53050000 NUT, HEXAGON, NYLOC, 5/16-18 UNC, PLATED 4
7# SF15050700 SCREW, CAP, 5/16-18 UNC X 7/8", PLATED 4
8# SF61040800 SCREW, COUNTERSUNK, 1/4-20 UNC X 1", PLATED 7

9 SFSG121000 SAFETY AND DUST SHIELD ASSY. KIT ....................... 1 .......... INCLUDES ITEMS W/#

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 51

SCARIFIER ASSY.

SCARIFIER ASSY.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 52

SCARIFIER ASSY.

SCARIFIER ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 SSG241900012 HOUSING 1
2 29018-083 BUSHING 2
3 87052000 BOLT CARRIAGE 3/8"-16 UNC X 2-1/2 UNC, PLATED 2

4 29019-013 WASHER, FLAT 5/8", HEAT TREATED ........................... 12 .......... SEE NOTE 1

5 29019-010 FAIL, STAR HEAT TREATED STEEL .............................. 12 .......... SEE NOTE 2

5 29019-011 FAIL, BEAM HEAT TREATED STEEL ............................. 12 .......... SEE NOTE 2

5 29019-012 FAIL, PENTAGONAL HEAT TREATED STEEL ................ 12 .......... SEE NOTE 2

6 08233-006 NUT, HEX 3/8" UNC, NYLOCK PLATED 2
7 29019-017 WEDGE, PLASTIC 1

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 53

SCRAPE-R-TACH ASSY.

SCRAPE-R-TACH ASSY.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 54

SCRAPE-R-TACH ASSY.

SCRAPE-R-TACH ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 29018-082 HOUSING 1
2 29018-084 HOLDER, INSERT 1
3 29018-085 MOUNT, RUBBER 1
4 29018-086 SPACER 2
5 29019-019 INSERT, TUNGSTEN CARBIDE 2
6 29018-087 SCREW, C/S 1/4" UNC X 1-1/4" 2
7 06500-020 BOLT CARRIAGE 5/16 UNC X 2-1/2" PLATED GD. 5 1
8 08233-005 NUT, NYLOCK 5/16"-1/8" UNC, PLATED 1
9 29019-017 WEDGE, PLASTIC 1
10 07033-004 NUT, HEX 1/4"-20 PLATED 2
11 07029-004 WASHER, LOCK1/4" PLATED 2

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 55

GRINDING BLOCK ASSY.

GRINDING BLOCK ASSY.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 56

GRINDING BLOCK ASSY.

GRINDING BLOCK ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 SG242101010 BLOCK 1
2 SG242101030 O-RING 3
3 83040901 PIN, RETAINING, STAINLESS STEEL 3
4 29019-017 WEDGE PLASTIC 1

5 SSG242100020 PIN, DIAMOND PURPLE 40-50 GRIT ............ 3 ................ AGGRESS GRINDING

5 SSG242101020 PIN, DIAMOND YELLOW 40-50 GRIT ............ 3 ................ GENERAL PURPOSE

5 SSG242102020 PIN, DIAMOND BLACK 40-50 GRIT ............... 3 ................ EPOXY, MORTAR & ASPHALT

5 SSG242103020 PIN, DIAMOND GREEN 40-50 GRIT .............. 3 ................ CONCRETE AND ASPHALT

5 SSG242104020 PIN, DIAMOND RED 40-50 GRIT ................... 3 ................ GRINDING AND POLISHING

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 57

DECALS

DECALS

WARNING

EAR AND EYE

PROTECTION

REQUIRED

SP8-5040

WARNING

3

KEEP

GUARDS IN

PLACE

START MOTOR: ROTATE HANDLE TOWARD OPERATOR
STOP MOTOR: ROTATE HANDLE AWAY FROM OPERATOR OR RELEASE

SP8-5050

1

2

BEFORE HOISTING THIS MACHINE
CONSULT WITH THEAPPLICABLE OPERATOR
MANUAL. IMPROPER HOISTING
PROCEDURES CAN RESULT IN PROPERTY
DAMAGE AND/OR PERSONAL INJURY.

5

GREASE DRIVESHAFT BEARINGS
EVERY 2 HOURS OF OPERATION OR
AS REQUIRED TO MINIMIZE RISK OF
GREASE CONTAMINATION.
CONTAMINATED GREASE WILL
REDUCE BEARING SERVICE LIFE.
CONSULT OPERATOR MANUAL FOR
DETAILED LUBRICATION
PROCEDURES.

SP8-5061

WARNING

CS8-5050

2

4

OFF

ON/OFF CONTROL IS SPRING LOADED TO OFF POSITION. DO NOT OPERATE
MACHINE IF CONTROL DOES NOT STOP MOTOR WHEN HANDLE IS RELEASED.

WARNING

6

KEEP CLEAR

OF ROTATING

PARTS

WARNING

8

1) BEFORE OPERATING THIS MACHINE,THOROUGHLY READ AND
COMPREHEND THE CONTENTS OF THE APPLICABLE OPERATOR'S MANUAL.

2) BEFORE STARTINGTHE POWER SOURCE, RAISE THE BLADE TO FULLY
CLEAR THE WORK SURFACE. VISUALLY INSPECT THE BLADE/ARBOR
SHAFT.

3) THIS MACHINE IS DESIGNED TO BE PULLED TOWARDTHE OPERATOR
DURING NORMAL OPERATION.
IMPROPER STARTING/OPERATION PROCEDURES CAN RESULT IN PROPERTY
DAMAGE AND/OR PERSONAL INJURY.

CS8-5050

ON

SP8-5020

7

SP8-5030

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 58

DECALS

NO. PART NO. PART NAME QTY. REMARKS

1 29020-045 DECAL, WARNING 1
2 SFSP85061 DECAL, GREASE BEARINGS 1
3 29020-048 DECAL, WARNING 2
4 29022-035 DECAL, WARNING 2
5 SFSP85020 DECAL, MOTOR START/STOP 1
6 TBD DECAL, MQ LOGO (LARGE) 1
7 29020-049 DECAL, WARNING 1
8 SFSP8E5HP5020 DECAL, WARNING 1

DECALS

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 59

Effective: February 22, 2006 TERMS AND CONDITIONS OF SALE — PARTS

PAYMENT TERMS

Terms of payment for parts are net 30 days.

FREIGHT POLICY

All parts orders will be shipped collect or
prepaid with the charges added to the invoice.
All shipments are F.O.B. point of origin.
Multiquip’s responsibility ceases when a
signed manifest has been obtained from the
carrier, and any claim for shortage or damage
must be settled between the consignee and
the carrier.

MINIMUM ORDER

The minimum charge for orders from Multiquip
is $15.00 net. Customers will be asked for
instructions regarding handling of orders not
meeting this requirement.

RETURNED GOODS POLICY

Return shipments will be accepted and
credit will be allowed, subject to the following
provisions:

A Returned Material Authorization 1.
must be approved by Multiquip prior to
shipment.

To obtain a Return Material Authorization, 2.
a list must be provided to Multiquip
Parts Sales that defi nes item numbers,
quantities, and descriptions of the items
to be returned.

The parts numbers and descriptions a.
must match the current parts price
list.

The list must be typed or computer b.
generated.

The list must state the reason(s) c.
for the return.

The list must reference the sales d.
order(s) or invoice(s) under
which the items were originally
purchased.

The list must include the name e.
and phone number of the person
requesting the RMA.

A copy of the Return Material Author ization 3.
must accompany the return shipment.

Freight is at the sender’s expense. All 4.
parts must be returned freight prepaid to
Multiquip’s designated receiving point.

Parts must be in new and resalable 5.
condition, in the original Multiquip
package (if any), and with Multiquip part
numbers clearly marked.

The following items are not returnable:6.

Obsolete parts. (If an item is in the a.
price book and shows as being
replaced by another item, it is
obsolete.)

Any parts with a limited shelf life b.
(such as gaskets, seals, “O” rings,
and other rubber parts) that were
purchased more than six months
prior to the return date.

Any line item with an extended c.
dealer net price of less than
$5.00.

Special order items.d.

Electrical components.e.

Paint, chemicals, and lubricants.f.

Decals and paper products.g.

Items purchased in kits.h.

Th e send er wi ll be n otifi ed o f any mat eria l 7.
received that is not acceptable.

Such material will be held for five 8.
working days from notifi cation, pending
instructions. If a reply is not received
within five days, the material will be
returned to the sender at his expense.

Credit on returned parts will be issued 9.
at dealer net price at time of the original
purchase, less a 15% restocking
charge.

In cases where an item is accepted, for 10.
which the original purchase document
can not be determined, the price will be
based on the list price that was effective
twelve months prior to the RMA date.

Credit issued will be applied to future 11.
purchases only.

PRICING AND REBATES

Prices are subject to change without prior
notice. Price changes are effective on a
specifi c date and all orders received on or
after that date will be billed at the revised price.
Rebates for price declines and added charges
for price increases will not be made for stock
on hand at the time of any price change.

Multiquip reserves the right to quote and
sell direct to Government agencies, and to
Original Equipment Manufacturer accounts
who use our products as integral parts of their
own products.

SPECIAL EXPEDITING SERVICE

A $35.00 surcharge will be added to the
invoice for special handling including bus
shipments, insured parcel post or in cases
where Multiquip must personally deliver the
parts to the carrier.

LIMITATIONS OF SELLER’S LIABILITY

Multiquip shall not be liable hereunder for
damages in excess of the purchase price of
the item with respect to which damages are
claimed, and in no event shall Multiquip be
liable for loss of profi t or good will or for any
other special, consequential or incidental
damages.

LIMITATION OF WARRANTIES

No warranties, express or implied, are
made in connection with the sale of parts or
trade accessories nor as to any engine not
manufactured by Multiquip. Such warranties
made in connection with the sale of new,
complete units are made exclusively by a
statement of warranty packaged with such
units, and Multiquip neither assumes nor
authorizes any person to assume for it
any other obligation or liability whatever in
connection with the sale of its products. Apart
from such written statement of warranty,
there are no warranties, express, implied or
statutory, which extend beyond the description
of the products on the face hereof.

Effective: February 22, 2006

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 60

NOTE PAGE

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 61

OPERATION AND PARTS MANUAL

©

HERE’S HOW TO GET HELP

PLEASE HAVE THE MODEL AND SERIAL

NUMBER ON-HAND WHEN CALLING

UNITED STATES

Multiquip Corporate Offi ce MQ Parts Department

18910 Wilmington Ave.
Carson, CA 90746
Contact: [e-mail]

Mayco Parts Warranty Department

800-306-2926
310-537-3700

Service Department Technical Assistance

800-421-1244
310-537-3700

Tel. [phone]
Fax [phone]

Fax: [phone]
Fax: [phone]

Fax: [phone] Fax: [phone]

MEXICO UNITED KINGDOM

MQ Cipsa Multiquip (UK) Limited Head Offi ce

Carr. Fed. Mexico-Puebla KM 126.5
Momoxpan, Cholula, Puebla 72760 Mexico
Contact: [e-mail]

Tel: [phone]
Fax: [phone]

CANADA

Multiquip

4110 Industriel Boul.
Laval, Quebec, Canada H7L 6V3
Contact: [e-mail]

Tel: [phone]
Tel: [phone]
Fax: [phone]

800-427-1244
310-537-3700

800-421-1244, Ext. 279
310-537-3700, Ext. 279

Hanover Mill, Fitzroy Street,
Ashton-under-Lyne,
Lancashire OL7 0TL
Contact: [e-mail]

Fax: [phone]
Fax: [phone]

Fax: [phone]

Tel: [phone]
Fax: [phone]

COPYRIGHT 2009, MULTIQUIP INC.

Multiquip Inc and the MQ logo are registered trademarks of Multiquip Inc. and may not be used, reproduced, or altered without written permission. All other trademarks are the property
of their respective owners and used with permission.

This manual MUST accompany the equipment at all times. This manual is considered a permanent par t of the equipment and should remain with the unit if resold.

The information and specifi cations included in this publication were in effect at the time of approval for printing. Illustrations, descriptions, references and technical data contained in
this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change specifi cations, design or the information published
in this publication at any time without notice and without incurring any obligations.

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