American Sanders 07104A User manual

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Form No. 70255B 7/08 revised 10/10
FloorCrafter
Belt Sander
U.S. Patent No. 5,575,710 and No. 6,578,858
Operator's Manual / Manual del operador / Manuel de l’utilisateur
Models: 07104A, 07111A, 07117A, 56380917
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 Clarke American Sanders 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(s) cannot read this manual, have it explained
fully before attempting to operate this machine.
All directions given in this book are as seen from the operator’s position at the rear of the machine.
English (2 - 20)
Español (22 - 40)
Français (42 - 60)
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EN
ENGLISH
-2- FORM NO. 70255B Clarke®American Sanders Operator's Manual (EN) - Floorcrafter
Table of Contents
Operator Safety Instructions........................................................................................................ 3
Introduction and Machine Specifications..................................................................................... 5
230V Electrical Connection Instructions...................................................................................... 6
How to Transport the Machine..................................................................................................... 7
One Person............................................................................................................................ 8
Two People ............................................................................................................................ 9
Machine Set-Up........................................................................................................................... 9
How to Operate the Machine......................................................................................................11
Sanding Cuts and Sandpaper ................................................................................................... 13
Chatter Wave Prevention .......................................................................................................... 14
Sander Adjustment Procedures................................................................................................. 15
Dust Shoe.............................................................................................................................. 15
Sanding Pressure.................................................................................................................. 15
Leveling the Drum ................................................................................................................ 15
Belt Tracking.......................................................................................................................... 16
Operating Control .................................................................................................................. 16
Routine Maintenance................................................................................................................. 17
Sanding Chamber.................................................................................................................. 17
Wheels................................................................................................................................... 17
Dust Bag................................................................................................................................ 17
Drive Belt............................................................................................................................... 17
Bearings ................................................................................................................................ 18
Rollers ................................................................................................................................... 18
Troubleshooting......................................................................................................................... 19
SECTION II Parts and Service Manual
Main Assembly Drawing #1.......................................................................................................62
Main Assembly Parts List #1................................................................................................ 63
Handle Control Assembly Drawing #2...................................................................................... 64
Handle Control Assembly Parts #2....................................................................................... 65
Contact Wheel & Truck Assembly Drawing #3 .......................................................................... 66
Contact Wheel & Truck Assembly Parts List #3................................................................... 67
Belt Tensioner Assembly Drawing #4 ........................................................................................ 68
Belt Tensioner Assembly Parts List #4 ................................................................................. 69
Dolly Assembly Drawing & Parts List #5.................................................................................... 70
Motor Assembly & Parts List #6.................................................................................................71
Wiring Diagram.......................................................................................................................... 72
WARNING!
The Products sold with this Manual contain or may contain chemicals that are known to certain governments (such as the State of
California, as identified in its Proposition 65 Regulatory Warning Law) to cause cancer, birth defects or other reproductive harm. In
certain locations (including the State of California) purchasers of these Products that place them in service at an employment job site or
a publicly accessible space are required by regulation to make certain notices, warnings or disclosures regarding the chemicals that are
or may be contained in the Products at or about such work sites. It is the purchaser’s responsibility to know the content of, and to comply
with, any laws and regulations relating to the use of these Products in such environments. The Manufacturer disclaims any responsibility
to advise purchasers of any specific requirements that may be applicable to the use of the Products in such environments.

EN
ENGLISH
Clarke®American Sanders Operator's Manual (EN) - Floorcrafter FORM NO. 70255B - 3 -
OPERATOR SAFETY INSTRUCTIONS
WARNING AVERTISSEMENT ADVERTENCIA
DANGER means: Severe bodily injury or death can occur to you or other personnel if the DANGER statements
found on this machine or in this Operator’s Manual are ignored or are not adhered to. Read
and observe all DANGER statements found in this Operator’s Manual and on your machine.
WARNING means: Injury can occur to you or to other personnel if the WARNING statements found on your
machine or in this Operator’s Manual are ignored or are not adhered to. Read and observe all
WARNING statements found in this
Operator’s Manual and on your machine.
CAUTION means: Damage can occur to the machine or to other property if the CAUTION statements found
on your machine or in this Operator’s Manual are ignored or are not adhered to. Read and
observe all CAUTION statements found in this Operator’s Manual and on your machine.
DANGER: Failure to read the Operator’s Manual before operating or servicing this sanding equipment could result in
injury to the operator or to bystanders and could cause damage to the equipment. Read and observe all
safety statements found in this manual and on the sanding equipment. Make sure all labels, decals, warn-
ings, cautions and instructions are fastened to the equipment. Replace any that are damaged or missing.
You must have training in the operation of this equipment before using it. If the operator is unable to read
this manual, have it explained fully before they attempt to use this equipment.
DANGER: Sanding/finishing wood floors can create an environment that can be explosive. The following safety proce-
dures must be adhered to:
• Cigarette lighters, pilot lights and any other source of ignition can create an explosion when active during
a sanding session. All sources of ignition should be extinguished or removed entirely if possible from the
work area.
• Work areas that are poorly ventilated can create an explosive environment when certain combustible
materials are in the atmosphere, i.e., solvents, thinners, alcohol, fuels, certain finishes, wood dust and
other combustible materials. Floor sanding equipment can cause flammable material and vapors to burn.
Read the manufacturer’s label on all chemicals used to determine combustibility. Keep the work area well
ventilated.
• Spontaneous combustion or an explosion can occur when working with sanding dust. The sanding dust
can self-ignite and cause injury or damage. Sanding dust should be disposed of properly. Always empty
the sanding dust into a metal container that is located outside of any building(s).
• Remove the contents of the dust bag when the bag is 1/3 full. Remove the contents of the dust bag each
time you finish using the equipment. Never leave a dust bag unattended with sanding dust in it.
• Do not empty the contents of the dust bag into a fire.
• Hitting a nail while sanding can cause sparks and create an explosion or fire. Always use a hammer and
punch to countersink all nails before sanding floors.

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-4- FORM NO. 70255B Clarke®American Sanders Operator's Manual (EN) - Floorcrafter
DANGER: Operating partially assembled sanding equipment could result in injury to the operator or bystander and could
cause damage to the equipment or to other property.
• Do not operate this equipment unless it is fully assembled and all guards, doors and covers are secured.
• Keep all fasteners tight.
• Keep all adjustments within manufacturers specifications.
DANGER: Moving parts on this sanding equipment can cause injury to the operator or bystanders.
• Keep hands, feet and loose clothing away from all moving parts.
• Do not change or adjust the abrasive while the sanding equipment is running.
• Do not service the sanding equipment while it is running.
DANGER: This sanding equipment requires a supply of electricity. Improper use could result in electrical shock or fire.
• Connect only to an electrical source matching what is shown on the equipment nameplate.
• Do not use this sanding equipment on an ungrounded electrical circuit. Consult an electrician if you suspect the
circuit is not properly grounded.
• Do not use this sanding equipment with a damaged electrical cord. Inspect before each use.
• Avoid striking the electrical cord with the abrasive. Always lift the electrical cord over the sanding equipment.
• Do not use the electrical cord to move the sanding equipment.
• Disconnect the electrical source before servicing this equipment.
WARNING: In the event of a bag fire, injury can occur to the operator if the operator is tied or strapped to equipment. Use operat-
ing belt properly (follow procedure on page 11).
WARNING: Injury to the operator or bystander can occur if protective gear is not worn while sanding. Always use eye, ear, and
respiratory protection while performing any sanding operation.
WARNING: Bodily injury could occur if power is applied to the equipment with the power switch already in the “ON” position.
Always check to assure that the power switch is in the “OFF” position before connecting power supply.
CAUTION: Maintenance and repairs performed by unauthorized personnel could result in damage or injury. Maintenance and
repairs performed by unauthorized personnel will void your warranty. Servicing of this unit must always be referred
to an authorized Clarke American Sanders distributor.
CAUTION: Use of this equipment to move other objects or to climb on could result in injury or damage. Do not use this equip-
ment as a step or furniture. Do not ride on this equipment.
CAUTION: Damage could occur to the equipment if not properly kept in a dry building for storage. Store the equipment in a
dry building.
CAUTION: The equipment is heavy. When transporting the equipment, remove the motor. Get help to lift the equipment and
motor.
CAUTION: Serious damage to the floor can occur if the sanding equipment 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.

EN
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Clarke®American Sanders Operator's Manual (EN) - Floorcrafter FORM NO. 70255B - 5 -
Introduction and Machine Specifications
MODEL 07104A 07111A 07117A 56380917
Electrical 230~, 60Hz 230V~, 50Hz 230V~, 50Hz 230~, 50Hz
Requirements 15.7 A, 3.7 kW 11.8 A, 2.2 kW 12.0 A, 2.2 kW 16.0 A, 3.0 kW
Sound Emisson 93.0 dB(A) 96.2 dB(A) 96.2 dB(A) 96.2 dB(A)
(Lpm)
Vibration <.15 in/s 2.88 m/s2rms 2.88 m/s2rms 2.88 m/s2rms
Motor 4 Hp Induction 2.2 kW Induction 2.2 kW Induction 3 kW Induction
Contact Wheel Rate 2450 rpm 2042 rpm 2042 rpm 2042 rpm
Abrasive Rate 4500 ft/min 3750 ft/min 1143 m/min 3750 ft/min
Abrasive Size 29½” x 77/8” 29½” x 77/8” 750mm x 200mm 29½” x 77/8”
Fan Flow Rate 234 CFM 195 CFM 92 liters/s 195 CFM
Drum Settings 80 lbs., 70lbs., 60 lbs. 80 lbs., 70lbs., 60 lbs. 36 kg, 32 kg, 27 kg 80 lbs., 70lbs., 60 lbs.
Overload Protection Magnetic Circuit Magnetic Circuit 13 A Fuse Magnetic Circuit
Breaker Breaker Breaker
Electrical Cable 50’, 10-3 SJO 100’, 12-3 SJO 15m HO7RN 100’, 12-3 SJO
LP-20P Plug AU2-15P Plug 3 x 1.5mm2AU2-15P Plug
UK1-13P Plug
Operating Controls Adjustable Lever/Grip Adjustable Lever/Grip Adjustable Lever/Grip Adjustable Lever/Grip
Leveling Controls Externally Adjustable Externally Adjustable Externally Adjustable Externally Adjustable
Operating Wheels 80 Durometer 80 Durometer 80 Durometer 80 Durometer
Clear Urethane Clear Urethane Clear Urethane Clear Urethane
Weight 204 lbs. 204 lbs. 94 kg 204 lbs.
Dimensions 35 x 133/4x 383/4 35 x 133/4x 383/4 89cm x 35cm x 98cm 35 x 133/4x 383/4
CAUTION: Your equipment may be inappropriate on some installations. Some softer woods used in floor-
ing cannot support the pressure created by hard wheels.
Always consult with the flooring manufacturer on the proper installation, preparation, and finish-
ing of their product. Determine suitability of your equipment in preparing the product.
revised 10/10

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-6- FORM NO. 70255B Clarke®American Sanders Operator's Manual (EN) - Floorcrafter
Figure 1
230V Electrical Connection Instructions
CAUTION: This machine will operate only on AC fre-
quency and on electrical voltage shown on
the equipment nameplate. Make sure you
have the correct frequency and voltage be-
fore connecting the power cord to an out-
let. See the example in figure 1.
This machine must be connected to an electrical source with an
earthing conductor in order to protect the operator from electric
shock. This machine has an approved power cord with three con-
ductors as well as a plug with three terminals. Connect the plug to
a matching receptacle.
DANGER: Electrocution could occur if the machine
is exposed to water or rain. Keep the ma-
chine in a dry building.
DANGER: Electrocution could occur if machine is not
connected to an electrical source with an
earthing conductor. To prevent possible
electric shock, use an electrical cord with
an earthing conductor and connect it to a
matching electrical source. For maximum
protection against electrical shock, use a
circuit that is protected by a ground fault
circuit interrupter. Consult your electrical
contractor.
DANGER: Electrocution could occur if the machine is
used with a damaged plug or power cord.
If the cords or plugs are worn or damaged
in any way, have them replaced by an au-
thorized service person or electrician.
Extension Cords
Use only an approved three-pronged extension cord with two main
conductors and one earthing conductor. This machine is equipped
with a power cord. When greater range is needed follow the table
below to determine cable gauge of additional footage. Refer to the
chart to the right for extension cord information.
If motor appears to labor or takes a considerable longer time to
come up to speed reduce sanding pressure. Feet/Wire Gauge (Stranded Copper)
Source Voltage 0 - 100’ 100 - 250’
208 6 Use Voltage Booster
230 10 8

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Clarke®American Sanders Operator's Manual (EN) - Floorcrafter FORM NO. 70255B - 7 -
Figure 4
Figure 3
Figure 2
AB BA
How to Transport the Machine
WARNING: The machine is heavy. Remove the motor
from the machine before transporting. Get
help loading the machine and motor. Use
proper lifting techniques.
Transporting the Machine - Using the Dolly Cart
CAUTION: When deploying the dolly, the drum will
contact the floor or ground over which the
machine is resting. Care should be taken
to avoid surfaces which might damage or
contaminate the drum.
CAUTION: While transporting using the dolly, abrupt
changes in the direction of travel or the
surface over which the machine is being
transported could cause the machine to tip
over. Also, the machine is more likely to
tip over when transporting across inclined
surfaces.
Attach the dolly to the rear of the machine as follows:
1. Open the quick release levers (2A) and unscrew the adjustment
nuts (2B) to allow installation of the dolly. (See figure 2)
2. Insert the quick release skewers into the dolly brackets and
immediately tighten the adjustment nuts until the dolly mechanism
will just swing free.
Deploy the dolly under the machine as follows:
1. With the dolly mechanism in place as described above, tip the
machine by lifting up on the operators handle to raise the rear of
the machine off the floor/ground until the dolly swings under the
machine. (See figure 3)
2. Hold the dolly in position using your foot and allow the machine to
tip back and rest on the dolly wheels. (See figure 4)
3. Tip the machine back on all four wheels and close the quick
release levers for transport. Some adjustment of the quick
release skewers may be necessary to allow the levers to be
tightened securely.
Removing/Storing the dolly:
The dolly can be stored on the machine in the “UP” position or it can
be removed and stored separately.
1. Open the quick release levers to loosen the dolly.
2. Lift up on the operators handle to tip the machine forward.
3. Swing the dolly out from under the machine and lower the
machine until it rests on its own wheels.
CAUTION: Be careful when lowering the machine.
The dolly will swing back toward the
operator as the machine is lowered.

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-8- FORM NO. 70255B Clarke®American Sanders Operator's Manual (EN) - Floorcrafter
Figure 5
A
B
Figure 6
Figure 7
Figure 8
How to Transport the Machine
4. To store the dolly in the “UP” position, swing the dolly up against
the top of the mainframe as far as it will travel and close the quick
release levers to secure it in place. (See Figure 5)
5. To remove the dolly, loosen the quick release adjustment nuts
until the levers and nuts clear the counter-bore on the dolly
brackets, and remove the dolly.
6. Tighten the adjustment nuts until the quick release levers can be
closed to secure the dolly in place.
Transporting the Machine - One Person
NOTE: This is accomplished by removing the motor from the chassis
and transporting the motor and chassis separately.
To transport the machine, follow this procedure:
1. Make sure the power cable is disconnected from the electrical
outlet.
2. Release the tension on the drive belts using the quick release
lever. (See Figure 6A )
3. Open the belt guard by pulling on the handle immediately above
the left truck wheel. (See Figure 6B)
4. Remove the drive belts from the machine
5. Disconnect the motor pigtail from the handle pigtail.
(See Figure 7) if so equipped.
6. Unscrew the motor mounting knobs to loosen the motor. (See
Figure 8)
7. Straddle the motor and grasp the motor lift handle. Using your
legs, lift the motor off the chassis and take it to the work site.
8. Lift the chassis by grasping the front and rear handles. Lift the
frame and bring the belt guard against your chest. Take the
chassis to the work site.
To assemble the machine after transporting, follow this procedure:
1. Open the belt guard door. Place the motor assembly on the
chassis and screw the motor mounting knobs sufficiently to
engage and secure the motor.
2. Install the drive belts. Tighten the belts using the belt tension
quick release lever.
3. Check the tension on the belts and close the belt guard door.

EN
ENGLISH
Clarke®American Sanders Operator's Manual (EN) - Floorcrafter FORM NO. 70255B - 9 -
Figure 9
Figure 10
Figure 11


How to Transport the Machine
CAUTION: Premature bearing failure can occur if the
fan belt is set too tight. The fan belt should
deflect ½” at the center of the span with 5
lbs. of pressure.
NOTE: It is necessary to adjust the fan belt independently during this
procedure or during replacement. The idler pulley is factory adjusted.
Transporting the Machine by Carrying - Two People
1. Person #1 places his hands under the front of the machine’s main
casting.
2. Person #2 lifts the machine by the operating handle.
Machine Set-Up
To set-up your machine, follow this procedure:
1. Familiarize yourself with the machine and read all danger,
warning and caution statements. Make sure all operators of this
machine have read this Owner’s Manual. If they cannot read this
manual, have the manual explained fully before allowing anyone
to operate the sander.
2. Locate the electrical source. The receptacle should be
compatible with the plug. The receptacle must be grounded and
must be fused (see nameplate for electrical requirements) to
avoid an electrical hazard.
3. Clip the dust bag to the elbow. (See figure 9) Cross the strings
on the dust bag and draw tight over the flare on the elbow. Wrap
the string around the elbow and secure.
4. Wind the electrical cord through the cable arm.
(See figure 10) Keep the power cord out of path of equipment.
Do not connect the electrical cord at this time.
5. Pull the draw latch forward to release the access door to gain
entry to the sanding chamber.
6. Rotate the release lever forward. (See Figure 11)