American Standard ALTO 70145A 11/00 User Manual

Operator's

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Classic 8

Manual

READ THIS BOOK

This book has important information for the use and safe operation of this machine. Failure to read
this book prior to operating or attempting any service or maintenance procedure to your ALTO
machine could result in injury to you or to other personnel; damage to the machine or to other property
could occur as well. You must have training in the operation of this machine before using it. If your
operator cannot read English, have this manual explained fully before attempting to operate this
machine.

Si Ud. o sus operadores no pueden leer el Inglés, se hagan explicar este manual completamente antes
de tratar el manejo o servicio de esta máquina.

All directions given in this book are as seen from the operator’s position at the rear of the machine.

For new books write to: ALTO U.S. INC., 2100 Highway 265, Springdale, Arkansas 72764.

Belt Sander

Form No. 70145A 11/00 AMERICAN SANDERS TECHNOLOGY Printed in the

Contents of this Book

Operator Safety Instructions ........................................................3

Machine Safety Statements.........................................................5

Introduction and Machine Specifications.....................................6

230V Electrical Connection Instructions......................................7

How to Transport the Machine.....................................................8

One Person..............................................................................8

Two People ............................................................................. 9

Machine Set-Up ........................................................................10

How to Operate the Machine .....................................................11

Sanding Cuts and Sandpaper................................................. 14

Sander Adjustment Procedures ................................................15

Routine Maintenance ................................................................17

Troubleshooting ........................................................................18

Assembly Drawing #1 ............................................................... 2 0

Assembly Parts List #1 ..........................................................21

Tension Assembly .....................................................................22

Tension Assembly Parts List .................................................23

Assembly Drawing #2 ............................................................... 3 4

Assembly Parts List #2 ..........................................................25

Assembly Drawing #3 ............................................................... 2 6

Assembly Parts List #3 ............................................................27

Wiring Diagram .........................................................................28

Chatter Wave Prevention ..........................................................29

Chatter Causes and Prevention ................................................29

Page 2 AMERICAN SANDERS TECHNOLOGY Classic 8 Operator's Manual

OPERATOR SAFETY INSTRUCTIONS

WARNING AVERTISSEMENT ADVERTENCIA

DANGER means: Severe bodily injury or death can occur to you or other personnel if the DAN-

GER statements found on this machine or in this Owner's Manual are ignored

or are not adhered to. Read and observe all DANGER statements found in
this Owner's Manual and on your machine.

WARNING means: Injury can occur to you or to other personnel if the WARNING statements

CAUTION means: Damage can occur to the machine or to other property if the CAUTION

DANGER: Read the operator's manual before servicing or operating this machine. The manual

contains information essential to the safe and reliable use of this machine.

DANGER: Sanding/finishing wood floors can create conditions that could produce a fire or explosion.

Follow these precautions:

• Do not sand over exposed nails. The grindings may enter the dust bag and ignite the
contents. Set all exposed nails before sanding.

• Do not sand over sanding abrasive particles or embedded stones. The grindings may
enter the dust bag and ignite the contents. Remove particles or stones before sanding.

• Do not leave wood dust in bag. The contents may spontaneously ignite or explode.
Dispose in a metal container clear of any combustibles. Do not dispose in a fire.

• Do not use this machine with or near flammable fuels or agents. Read the manufacturer's
label on all chemicals to determine flammability. Vapors or airborne wood dust can
create an explosive environment. Open flames, electrical sparks or other sources of
ignition should be extinguish or avoided. Do not over fill the dust bag. Ventilate the work
area.

found on your machine or in this Owner's Manual are ignored or are not
adhered to. Read and observe all WARNING statements found in this Owner's
Manual and on your machine.

statements found on your machine or in this Owner's Manual are ignored or are
not adhered to. Read and observe all CAUTION statements found in this

Owner's Manual and on your machine.

• Do not operate the machine on an electrical circuit that repeatedly trips or blows the
fuse. The circuit may be undersized or faulty which could cause an electrical fire.

DANGER: This machine operate on electric power. The power is sufficient to cause shock or

electrocution. Follow these precautions:

• Do not connect the machine to an electrical circuit that has no grounding conductor.
The grounding conductor will drain the power from the machine, should it become
electrified. Consult an electrician if the grounding conductor is missing or you suspect
the circuit has no grounding conductor. Do not remove or disable the grounding conduc­tor on the electrical cord. For added protection, use machine on a circuit equipped with
a ground fault circuit interrupter.

• Do not service the machine while connected to an electrical circuit. Doing so might
result in contact with electrical components.

• Do not use the machine with a damaged electrical cord. Inspect the cord for damage to
the jacket and connector(s) before connecting the machine to an electrical circuit. Do
not use the cord to move the machine. Keep the cord clear of the sanding drum. Lift
the cord over the machine when moving it from one side to the other.

• Do not expose this machine to rain or moisture. Damage to electrical components may
occur. Store in a dry building.

AMERICAN SANDERS TECHNOLOGY Classic 8 Operator's Manual

Page 3

DANGER: This machine had rotating and moving elements that can cause serious injury. Follow

these precautions:

• Do not operate this machine unless all guards, doors and covers are secure and in
place.

• Keep hands, feet and loose clothing away from all moving parts.

• Do not service the machine while in operation. Disconnect the electrical cord before
servicing.

• Do not change or make adjustments to the abrasive while the machine is in operation.

WARNING: Any alterations, modifications or misuse of this machine, could result in damage to the

machine or injury to the operator or bystanders. Alterations, modifications or uses not
authorized by the manufacturer, voids any and all warranties and liabilities.

WARNING: Do not operate a machine that is damaged or malfunctioning. Follow the maintenance

schedule found in the "Routine Maintenance" section in this manual.

WARNING: Wear eye, ear, respiratory protection and protective clothing while sanding.
WARNING: See that the control switch is off and the drum raised before connecting the machine to an

electrical circuit. Keep hands on the operating controls while sanding.

CAUTION: Refer all maintenance and repairs to an authorized repair center.
CAUTION: The machine is heavy. See the "How To Transport" section in this manual.
CAUTION: Observe all warning and instructional labels on this machine. Replace any lost or damaged

labels.

CAUTION: Use of this machine to move other objects or to climb on could result in injury or damage.

Do not use this machine as a step or furniture. Do not ride on this machine.

CAUTION: Serious damage to the floor can occur if the machine is left running in one spot while the

sanding drum is in contact with the floor. To avoid damage to the floor, feather cut in at a
normal sanding rate. Do not dwell while lowering or raising the contact wheel. Always
sand at a constant rate.

Page 4 AMERICAN SANDERS TECHNOLOGY Classic 8 Operator's Manual

Machine Safety Statements

The following safety decals are mounted on the machine as shown. If these or any other machine decal,
label or plate should become damaged or illegible, install a new decal in its place. Contact your local autho­rized distributor for new decals.

The following information signals potentially dangerous conditions to the operator and/or equipment. Read
this manual carefully and familiarize yourself with the machine. Know when these conditions can exist.
Locate all safety devices on the machine. Then, take the necessary steps to train the personnel that will be
operating the machine. Report machine damage or faulty operation immediately.

1. Keep hands and clothing clear of rotating parts.

2. Keep hands on controls with the motor running.

3. Do not leave the machine with the motor running.

4. Do not operate the machine with the access door open or the belt guard removed.

5. Always operate the machine with the dust bag in place.

6. Do not remove dust bag with the motor running.

7. Always disconnect the motor pigtail power cord from the handle before servicing the machine.

8. Use caution if motor is removed for transporting (weight 108 lbs). The machine weighs 106 lbs.
(minus the motor).

9. Always operate in a well ventilated area.

10. Always dispose of sanding dust properly.

AMERICAN SANDERS TECHNOLOGY Classic 8 Operator's Manual

Page 5

Introduction and Machine Specifications

Operating Control Lever

Motor Starter / Protector

Sanding Pressure Adjustment

Level Adjustment Nut

Tension Release Lever

PART NUMBER 07094C
ABRASIVE SIZE 29

1

/2" x 7 7/8 "

CONTACT WHEEL SPEED 2850 rpm (revolutions per minute)
ABRASIVE SPEED 4300 sfm (surface feet per minute)
DUST FAN SPEED 6800 rpm (revolutions per minute)
DUST FAN FLOW 234 cfm (cubic feet per minute)
MOTOR 4 hp 208-230V 60Hz 16A
LEVELING CONTROL Externally adjustable
OPERATING CONTROL Adjustable lever/grip
MOTOR STARTER/PROTECTOR Magnetic circuit breaker
SANDING PRESSURE ADJUSTMENT Infinitely adjustable
WHEELS Replaceable 3½" O.D.
BEARINGS Radial ball, permanently lubricated
DIMENSIONS 40

1

/2" L x 15" W x 36 3/4"H

WEIGHT 214 lbs.

CAUTION: Your equipment may be inappropriate on some installations. Some softer woods

used in flooring cannot support the pressure created by hard wheels.
A felt or rubber wheel should be used when these woods are encountered.
See parts list for optional wheels.

Always consult with the flooring manufacturer on the proper installation, prepara­tion, and finishing of their product. Determine suitability of your equipment in
preparing the product.

Page 6 AMERICAN SANDERS TECHNOLOGY Classic 8 Operator's Manual