Powr-Flite SD70 User manual

Edger/Disc Sander
Model SD70
Save These Instructions
X8802
OPERATING INSTRUCTIONS
COMMERCIAL EDGER
CONGRATULATIONS
YOU HAVE JUST ACQUIRED A HIGH QUALITY SANDER.
PLEASE READ THIS MANUAL CAREFULLY BEFORE
OPERATING YOUR NEW SANDER. KEEP MANUAL ON
HAND FOR FURTHER REFERENCES.
TECHNICAL MACHINE
SPECIFICATIONS
Single-phase AC motor 115V/60 Hz
Motor power 1800 W
Sandpaper disk 7 inches
Disk speed 4300 RPM
Machine weight 20 lbs.

2
CONTENTS
Important Parts of the Machine ...........................3
Machine Set-up
Fitting t h e d u s t b a g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
How to Operate the Machine
Fitting t h e s a n d p a p e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Sanding a n g l e a d j u s t m e n t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Connection t o p o w e r s u p p l y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Starting t h e m a c h i n e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
How to operate the machine .................................5
Maintenance
Brush r e p l a c e m e n t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Changing a n d a d j u s t i n g t h e V-belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cleaning t h e d i s k p u l l e y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Wheel r e p l a c e m e n t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Dust s u c t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Equipment .............................................................9
Assembly Drawing and Spare Parts List ...........10
CAUTION
Read all instructions, warnings and
cautions before using!
These guidelines are provided for your
protection and convenience. Please read
them carefully. If you have any questions
regarding the use of your equipment call
Powr-Flite Technical Service at
800.880.2913. This manual contains
important information for the use of this
machine and safety instructions for
preventing personal injuries, damage to
the machine or to other property. Failure
to adhere to instructions provided can
potentially void any warranties.
INTRODUCTION
Congratulations on your purchase of a Powr-Flite
Edger Sander. Read this entire manual before
operating or servicing the sander.
Unpacking the Edger Sander
The Powr-Flite Edger Sander was thoroughly
inspected, tested, and packaged to deliver the
equipment in good operating condition. The freight
carrier received and signed for the equipment in good
condition. Damage can occur during shipping and to
protect your interest, all cartons must be inspected for
damage (including any concealed damage) that might
have occurred during shipment. Any damage is the
responsibility of the freight carrier and should be
reported immediately to the carrier.It is your
responsibility to issue a claim and to receive
compensation from the freight carrier for any damage
done in transit. Shipping damage is not warranted.

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Fig. 1
Fig. 2
Fig. 3
Fig. 4
IMPORTANT PARTS OF THE MACHINE
The machine is fitted with a protected switch.
Push the button to “ON” to start the motor and
the “OFF” to stop.
Suction dust tube
The suction dust tube is placed at the back of the machine
next to the dustbag holder.
Dustbag
The dustbag must be clipped to the suction tube and its
holder placed inside the bag.
V-belt tensioner
The V-belt tensioner is located at the back of the machine
and underneath it.
Electric switch

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Fig. 5
Fig.6
Fig.7
MACHINE SET-UP
Sandpaper disk holder
Fitting the dustbag
The sandpaper disk holder is a tapered nut.
After unpacking the machine, proceed as follows:
1Fit the suction tube
2Fit the dustbag holder
3Fit the dustbag
1Sandpaper discs with an adhesive backing:
use 178 mm. disks and simply place the sandpaper disk
on the sanding disk (Fig. 6).
2Sandpaper discs with a paper backing:use 178
mm disks with a 22 mm hole.
3Take offthe taper nut.
HOW TO OPERATE THE MACHINE
4Place the sandpaper disk, then the taper nut and
secure it. (Fig. 7).
Fitting the sandpaper

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Fig. 8
Fig. 9
5Fasten the nut with the wrench included in the wrench
kit (Fig. 8).
Sanding angle adjustment
The sanding angle is set up at the factory for sanding with a
1/3 disk.
If you wish to change this angle, unloosen the nut securing
the wheel shaft. Then move the wheels up and down to
change the working angle as follows:
Wheels down: the machine sands point first
Wheels up: the machine sands flat. (Fig. 9).
Connection to power supply
The sander must be connected to a 115V/60 Hz power
supply with grounded plugs.
CAUTION!
To prevent electrocution keep the machine in a dry place. Do
not expose the machine to rain.
Use 3 wire of 14 AWG section cable.
The machine cord, extension cords and connection plugs
must be in perfect condition.
1Before connecting the cord to the power supply make
sure that the switch is in the “0” position.
2Place the machine in a vertical position and tilted
backward.
3Hold the machine with your left hand.
4Push the switch down with your right hand.
5Press the disk on the floor and start sanding.
6Do not press on the sander. Its own weight and the high
speed of the disk are sufficient for sanding.
HOW TO OPERATE THE MACHINE
Starting the machine
How to use the machine
The sander is usually held with both hands and placed
between the legs with your body leaning backward. You can
also use it on your knees.
The high speed of the disc will sand the surface without any
additional pressure. Do not press on the edger while
sanding.
Pressing on the machine could leave marks on the floor,
burn the wood, overheat the motor and wear the brushes
faster; shortening the life of the machine.

4Remove the plastic cover securing the brushes with a
screwdriver (Fig. 13).
5Remove the brushes carefully and replace them (Fig.
14).
IMPORTANT:
The motor is fitted with two brushes, one at each side of the
motor.
In universal motors, the brushes have an approximate life of
500 hours of machine use under normal conditions and
without pressing too much on the sander when working.
The brushes and their housing should be cleaned using
compressed air.
Inspect brushes on a regular basis. They should be replaced
before the automatic disconnection stops the machine. This
will occur when the brushes are worn out and less than ⁄ inch
long. Damage can occur if the brushes are allowed to wear
completely out. Make sure you always have a brush set
available.
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Fig. 11
Fig.12
Fig.13
Fig.14
Brush replacement
3Remove the vertical bracket (Fig. 12).
MAINTENANCE
1Disconnect the machine from the power supply.
2Remove side and front screws.( Fig.11).

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Fig.15
Fig.16
Fig.17
Fig.18
MAINTENANCE
Changing and adjusting the V-belt
Due to the high speed of the motor, it is important to check
the tension of the V-belt. DONOT TIGHTEN THE BELT
TOO MUCH.
This type of machine, equipped with high speed motors,
needs a regular replacement of the belt.
1For adjusting or replacing the belt, disconnect the power
supply.
2Loosen both screws without removing them (Fig. 15).
3Loosen the nut without removing it (Fig. 16).
4The belt is either tightened or loosened when adjusting or
loosening the tension screw (Fig. 17).
5Place the machine as shown in Fig. 18 and remove the
four screws securing the guard which covers the belt
(Fig. 18).

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Cleaning the disk pulley
6Take off the taper nut which holds the sandpaper
(Fig. 19).
8When the disk and the pulley are loose, lift them up,
remove the belt and replace it by a new one (Fig. 21).
MAINTENANCE
Material debris, waxes, glues, plasters, leveling pastes, etc.
could stick to the disk pulley causing the machine to be out
-of-balance and show an unusual belt wear.
Clean the pulley track where the belt slides. (Fig. 22).
7Remove the guard which covers the central screw with a
screwdriver. Holding the disk with one hand, ease the
central screw with an Allen wrench (Fig.20 a-b).
To pull out the pulley from the bearing, strike the central
screw slightly with a plastic hammer (Fig.20 c).
Toset up the pulley again, tighten the screw at the disk
side, adjust the pulley to the bearing and strike the screw
slightly with a plastic hammer until the pulley gets in
(Fig.20 d).
Remove the screw and set it in place again.
Fig.19
Fig.20
Fig.21
Fig.22
ab
cd

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Fig.23
Fig.24
Fig.25
MAINTENANCE
EQUIPMENT
Wheel replacement
For proper machine operation, inspect the wheels for
wearing and to ensure the working angle is not altered
as the wheels wear down.
The proper working angle is necessary to maintain:
-Adequate dust suction
-proper sanding finish
Replace wheels as required to maintain the proper
working angle.
Dust suction
The machine is equipped with a dustbag. For
optimum performanc:
1The working angle should be the adequate. A tilted
machine is not able to vacuum properly.
2Empty the dustbag when it is 1/3 full. Suction
becomes less effective when the bag gets too full.
3Do not use the machine with more than one disk of
sandpaper.
4The bag is made with a special material which lets
air through, but not dust.
5Change the dustbag several times a year,even if it
is not torn; the aging of material due to dust
accumulation will obstruct the air circulation and
therefore cause faulty suction.
Tool bag
A tool bag with wrenches is provided for machine
maintenance.

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ASSEMBLY DRAWING AND SPARE PARTS LIST

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ASSEMBLY DRAWING AND SPARE PARTS LIST
ref# part # desc
1 SD157 HILT
2 SD158 HANDLE
2.3 SD159 HANDLE BRACKET
5 SD160 DUST BAG CLAMP
6 SD161 DUST BAG
8 SD162 O RING OR 44,2 x 3
11 SD163 FAN
12 SD164 MOTOR PULLEY (disc ø 178 mm)
18.1 SD165 WHEEL ø 40
ref# part # desc
21 SD166 GASKET
28 SD167 O RING OR 90 X 3
32 SD168 SCREW DIN 7991 M 10 x 40
41 SD169 BELT Z - 19 3/4 (disc ø 178 mm)
43 SD170 STEEL DISC ø 178 mm
45 SD172 CONICIAL NUT
46 SD173 FELT DISC ø 178 mm
47 SD174 UNIVERSAL MOTOR MOG USA
57 SD175 KEY
ref# part # desc
1SD176 BALLBEARING 6001 VVC3
2SD177 BRUSH BRACKET
3SD178 BRUSHES
4 SD179 COVER
5 SD180 MOTOR HOUSING
6SD181 STATOR USA
7 SD182 COVER
8 SD183 BALLBEARING 6202 VVC3
10 SD184 ROTOR USA
13 SD185 V-RING JOINT V 28 S
14 SD186 AXIAL DISC INA AS3047
15 SD187 SPACER

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WARRANTY
Powr-Flite warrants new products manufactured and sold under the name of Powr-Flite to be free from
defects in materials and workmanship under normal use and service, provided such goods are installed,
operated and maintained in accordance with written manuals or other instructions for a period of 1-year.
Powr-Flite’s obligation under this warranty is limited to repairing or replacing, at our option, such products
or parts which are returned to our factory authorized service center, within the warranty period and are
found to be defective in materials or workmanship. This warranty does not apply to excessive wear caused
by abnormal use, nor does it apply to normal wear parts such as main cable, wheels, switches, relays,
brushes, rubber parts, hoses and bearings.
This warranty is in lieu of all other warranties expressed or implied, and releases Powr-Flite from all other
obligations and liabilities.
Powr-Flite assumes no responsibility for repairs, and the costs of such repairs, made or attempted by
persons other than those specifically authorized by Powr-Flite. Any such unauthorized repairs shall void
this warranty.
DECLARATlON OF CONFORMlTY
QUIDE, S.A. declare under our responsability that the floor sanding machine model EASY 7 meets the requires
standards of safety and health with respect to the design and manufacture of machinery, according to the below
mentioned regulations.
EEC regulations regarding to:
Machines (89/392/EEC)
Low voltage (73/23/EEC)
Electromagnetic compatibility (89/336 EEC)
(Last changed through 93/68/EEC from 22.7.1993.)
In conformity with the following standards:
EN 292 Part 1 and Part 2 (Safety of machinery, equipment and systems)
EN 60204.1 (Electrical equipment of industrial machines)
DECLARATION OF CONFORMITY
WARRANTY