American Sanders FloorCrafter 8 07104A User manual

Belt Sander
FloorCrafter
Operator’s Manual

Contents
Operator Safety Instructions.....................................................3-6
Introduction.................................................................................7
Machine Specifications..................................................................7
230V Electrical Schematic...........................................................7
Machine Transportation.............................................................8-9
Machine Setup.........................................................................9-10
Machine Operation...............................................................11-12
Chatter-Wave Prevention.......................................................13
Sanding Cuts & Sandpaper....................................................13
Sander Adjustment Procedure.....................................................14
Routine Maintenance................................................................16
Troubleshooting....................................................................17-18
Wiring Diagram............................................................................53
Handle Assy..........................................................................54-55
Base Assy...............................................................................56-57
Belt Tensioner Assy.................................................................58-59
Dolly Assy...............................................................................60-61
Dust Control Assy....................................................................62-63
Motor Assy..............................................................................64-65
Sanding Drum Assy................................................................66-67
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 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.
***This product is intended for commercial use only***
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 identied 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 specic requirements that may be applicable to the use of the Products in such environments.
In this Operation Manual you will find three statements that you must read and observe to ensure safe operation of this
machine.
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 Operation Manual are ignored or are not adhered to. Read
and observe all DANGER statements found in this Operation 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 the Operation Manual are ignored or are not adhered to. Read and observe all
WARNING statements found in this Operation Manual and on your machine.
CAUTION means: Damage can occur to the machine or to other property if the CAUTION statments found
on your machine or in this Operation Manual are ignored or are not adhered to. Read and observe all
CAUTION statments found in this Operation Manual and on your machine.
Operator Safety Instructions
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4
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DANGER: Failure to read the Owner’s Manual prior to operating or servicing your 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 you or your operator(s) cannot read English, have this manual explained fully
before attempting to operate this machine.
DANGER: A. Sanding/nishing wood oors can create an explosive or combustible environment. Do not operate this machine around
solvents, thinners, alcohol, fuels, oor nishes, wood dust or any other ammable materials. Cigarette lighters, pilot lights,
electrical sparks and all other sources of ignition should be extinguished or avoided. Keep work area well ventilated.
B. Dust generated from sanding wood oors can spontaneously ignite or explode. Promptly dispose of any sanding dust in
a metal container clear of any combustibles. Do not dispose in a re.
DANGER: A. Electrocution could occur if the machine is being serviced while the machine is connected to a power source. Disconnect
the power supply before servicing.
B. Electrocution or re could occur if the machine is being operated with a damaged power cord. Keep the power cord clear
of the pad. Always lift the cord over the machine. Do not move the machine by the power cord.
C.Shock hazard. Do not use the machine if it has been rained on or sprayed with water.
DANGER: To avoid injury keep hands, feet, and loose clothing away from all moving parts on the machine. Disconnect the power cord
before replacing the pad, changing the abrasive, or when servicing. Do not operate the machine unless all guards are in
place. Never leave the machine unattended while connected to a power source.
WARNING: Injury can occur if protective clothing or equipment is not used while sanding. Always wear safety goggles, protective
clothing, and dust mask while sanding.
WARNING: This sander is not to be used on pressure treated wood. Some pressure treated woods contain arsenic and sanding
pressure treated wood produces hazardous dust. Inhaling hazardous dust from pressure treated wood can cause serious
injury or death. Sanding pressure treated wood decks or uneven surfaces can damage the sander which is not covered
under warranty or damage waiver.
WARNING: Any alterations or modications of this machine could result in damage to the machine or injury to the operator or other
bystanders. Alterations or modications not authorized by the manufacturer voids any and all warranties and liabilities.
WARNING: Risk of explosion. Floor sanding can result in an explosive mixture of ne dust and air. Use oor sanding machine only in a
well-ventilated area free from any ame or match.

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CAUTION: This machine will operate only on AC frequency and on electrical voltage shown on the motor nameplate. Make
sure you have the correct frequency and voltage before connecting the power cord to an outlet. The machine has
a plug as shown below.
DANGER: Electrocution could occur if the machine is exposed to water or rain. Keep the machine in a dry building.
DANGER: Electrocution could occur if machine is improperly connected to the electrical system. To prevent possible electric
shock , always use a 3wire electrical system connected to an electrical ground. 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 ground pin is tampered with in any way. Do not cut, remove, or break the ground
pin. Do not try to t a three-terminal plug into a receptacle or connector body other than a three plug receptacle
or connector body. If the outlet does not t the plug, 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 authorized service person or electrician.
If motor appears to labor or takes a considerable longer time to come up to speed reduce sanding pressure.
Machine Specifications
Introduction
The FloorCrafter can be used on a variety of surfaces. It is an ideal tool for wood flooring maintenance and restoration work. It is
also suitable for cleaning hard surfaces such as tile or Terrazzo.
7
230V Electrical Connection Instructions
This machine must be connected to an electrically ground circuit in order to pro-
tect the operator from electric shock. This machine has an approved power cord
with three conductors as well as a plug with three terminals. Connect the plug into
a three holed receptacle. For maximum protection against electric shock, use a
circuit that is protected by a ground fault circuit interrupter.
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
to determine cable gauge of additional footage. Refer to the
chart to the right for extension cord information
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Part # 07104A 07104B 07202A 56380917
Model FloorCrafter 8 FloorCrafter 8, Blk FloorCrafter 8 FloorCrafter 8
Electrical Requirements 230~, 60Hz / 15.7 A, 3.7 kW 230~, 60Hz / 15.7 A, 3.7 kW 230~, 60Hz / 15.7 A, 3.7 kW 230~, 50Hz / 16.0 A, 3.0 kW
Sound Emission (Lpm)* 93.0 dB(A) 93.0 dB(A) 93.0 dB(A) 96.2 dB(A)
Vibration <.15 in/s <.15 in/s <.15 in/s 2.88 m/s2rms
Motor 4 Hp Induction 4 Hp Induction 4 Hp Induction 3 kW Induction
Contact Wheel Rate 2450 rpm 2450 rpm 2450 rpm 2042 rpm
Abrasive Rate 4500 ft/min 4500 ft/min 4500 ft/min 3750 ft/min
Abrasive Size 29½” x 7⅞” 29½” x 7⅞” 29½” x 7⅞” 29½” x 7⅞”
Fan Flow Rate 234 CFM 234 CFM 234 CFM 195 CFM
Drum Settings 80 lbs., 70lbs., 60 lbs. 80 lbs., 70lbs., 60 lbs. 80 lbs., 70lbs., 60 lbs. 80 lbs., 70lbs., 60 lbs.
Overload Protection Magnetic Circuit Breaker Magnetic Circuit Breaker Magnetic Circuit Breaker Magnetic Circuit Breaker
Electric Cable 50’, 10-3 SJO LP-20P Plug 50’, 10-3 SJO LP-20P Plug 50’, 10-3 SJO LP-20P Plug 100’, H05VVF3G4.0 AV3-20P 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 Clear Urethane 80 Durometer Clear Urethane 80 Durometer Clear Urethane 80 Durometer Clear Urethane
Weight 204 lbs. 204 lbs. 204 lbs. 204 lbs.
Dimensions 35 x 13¾ x 38¾35 x 13¾ x 38¾35 x 13¾ x 38¾35 x 13¾ x 38¾

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 oor/ground
until the dolly swings under the machine. (See gure 3)
2. Hold the dolly in position using your foot and allow the machine to tip back and rest on the dolly wheels. (See gure 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.
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.
Machine Transportation
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Figure 2
AB BA
Figure 3
Figure 4 Figure 5
A
B
Figure 6
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9
Machine Setup
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.
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.
Figure 8
Figure 7
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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 sufciently 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.
CAUTION: Premature bearing failure can occur if the fan belt
is set too tight. The fan belt should deect 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.

10
Machine Setup
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)
WARNING: Never put yourself or let others be in a position to get injured if the machine should tip or fall, while replacing the
pad or changing abrasive.
CAUTION: Damage to the grip face will occur if the machine is operated without a pad or with a pad that is 3/8” (9,5 mm) or
thinner.
Figure 11

Figure 9 Figure 10
7. Install a new abrasive belt by sliding the abrasive over the tension roller and contact wheel. (See gure 12)
8. Rotate the release lever backward to tighten the abrasive belt. CAUTION: Do not force the release lever. Doing so candamage the tracking
mechanism and cause the abrasive belt to mis-track.
9. Depending on the model, the control switch is found on either the operating handle or on the motor. Verify that the control switch is set to “OFF”.
See the marking on the switch.
10. Connect the electrical cord. On certain models, the connection must be twisted clockwise to lock.
11. Jog (turn on momentarily - test operation) the control switch while observing the belt tracking. Follow the procedures outlined in the “Sander
Adjustment Procedures” on page 16 to correct the belt tracking. There is also a label on the inside of the access door that outlines the
belt adjustment.
12. Close the access door. Place the end of the draw latch over the keeper on the access door and push the draw latch at against the mainframe to
secure.
Figure 12
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