Alpha AWP-158 User manual
Part No: AWP-158 / AWP-214 / AWP-216 / AWP-21C
103 Bauer Drive, Oakland, NJ 07436 • 800-648-7229 • Fax: 800-286-0114
www.alpha-tools.com
Alpha®Wet Electric
Portable Polisher
Instruction Manual
MANUAL
VERSION 3
2
TABLE OF CONTENTS
Introduction................................................................................................................ 3
About Symbols.................................................................................................... 3
Safety Instructions .................................................................................................... 3
For Safe Operation.............................................................................................. 3
Additional Precautions for Using the AWP-158...................................................... 6
About Double Installation................................................................................... 7
Preparation Before Operation............................................................................ 8
Laws and Regulations of Noise Levels............................................................. 8
AWP-158 Overview ................................................................................................... 9
Specications...................................................................................................... 9
Standard Accessories....................................................................................... 10
Before Use................................................................................................................ 10
Preparation and Inspection.............................................................................. 10
Removal Procedures......................................................................................... 13
How to Polish..................................................................................................... 13
Maintenance and Inspection .................................................................................. 15
How to Replace Carbon Brushes..................................................................... 16
Services and Warranty Information ....................................................................... 17
Repair ................................................................................................................. 17
Loaner Program................................................................................................. 17
Need More Information ..................................................................................... 17
AWP-158 Schematic ................................................................................................ 18
AWP-158 Parts List.................................................................................................. 19
EC Declaration of Conformity ................................................................................ 22
Product Registration Card...................................................................................... 23
3
INTRODUCTION
Thank you for purchasing the Alpha®Wet Polisher. Please read this instruction manual
thoroughly to ensure safety and correct use of the polisher. Keep this manual in a place
where operators can access it easily whenever necessary.
ABOUT THE SYMBOLS
Accordingtothehazardlevel,allsafetynotesinthismanualareclassiedinto“DANGER”,
“WARNING”,and“CAUTION”.
DANGER! Deathorseriouspersonalinjuryisimminentwhenhandlingthis
polisher incorrectly.
WARNING! Thereisapossibilityofdeathorseriouspersonalinjurywhen
handling this polisher incorrectly.
CAUTION! Thereisapossibilityofpersonalinjuryorpropertydamagewhen
handling this polisher incorrectly.
Note: Insomesituations,failingtoobserveWARNINGnotescouldresultin deathor
seriouspersonalinjury.Besuretoreadandobservethesafetynotestoensure
safety and correct use of the polisher.
ELECTRICAL SYMBOLS
The following show the symbols used for tool.
V Volts
A Amperes
Hz Hertz
~ or a.c. Alternating Current
n0 No load speed
…/min Revolution or reciprocation per minute
kg Kilograms
Protective Earth
4
CAUTION!
The following are important notes for products, operation, and maintenance applicable to
this polisher.
SAFETY INSTRUCTIONS
Read all these instructions before attempting to operate this product.
Save these instructions in a safe place for future reference.
Warning:Whenusing electrictools, basicsafetyprecautionsshould alwaysbe followedto
reducetheriskofre,electricshock,andpersonalinjury,includingthefollowing.
FOR SAFE OPERATION
1. Keep work area clean
Clutteredareasandbenchesinviteinjuries.
2. Consider work area environment
Do not expose power tools to rain. Do not use power tools in damp or wet locations
withoutGFCIprotection.Keepworkareaswelllit.Donotusethetoolinpresenceof
ammableliquidsorgases.
3. Guardagainstelectricshock
Prevent bodycontact withgrounded surfaces.For example:pipes, radiators,ranges,
and refrigerator enclosures; use grounded outlets.
4. Keep children and visitors away
Donot letvisitors contact toolor extensioncord. Allvisitors shouldbe keptaway from
work area. Keep out of reach of children.
5. Tool Storage
Whennot inuse, toolsshould bestored ina securedry location.Alockedstorage area
or high shelf out of children’s reach is ideal.
6. Do not force the tool
Itwilldothejobbetterandbesaferattherateforwhichitwasintended.
7. Use the right tool
Donotforceasmalltoolorattachmenttodothejobofaheavy-dutytool.Donotuse
the tool for purposes it is not designed for – (for example – do not use circular saw for
cutting tree limbs or logs.)
8. Dress properly
Donotwearlooseclothingorjewelry.Itemssuchasthesecanbecaughtinmoving
parts. Rubberglovesandnon-skidfootweararerecommendedwhenworkingoutdoors.
Wear protective hair covering to contain long hair.
9. Use safety glasses
Always wear safety glasses and if necessary, a face or dust mask also.
10. Do not abuse the electrical cord
Nevercarry thetool bythe electricalcord orpull itto disconnectfrom receptacle. Keep
the electrical cord away from heat, oil and sharp edges.
5
11. Secure workpiece
Use clamps or a vise to hold workpiece rather than using your hands.
12. Do not overreach
Keep proper footing and balance at all times.
13. Maintain tools with care
Keep tools sharp and clean for better and safer performance. Follow instructions for
lubricating and changing accessories. Inspect the electrical cord periodically and
if damaged, have it repaired by authorized service facility. Inspect extension cords
periodically and replace if damaged. Keep handles dry, clean and free from oil and
grease.
14. Disconnect tools
Disconnectthetoolfromthepowersupplywhennotinuse,beforeservicing,andwhen
changing accessories, such as blades, bits, cutters.
15. Removeadjustingkeysandwrenches
Checktoseethatkeysandadjustingwrenchesareremovedfromthetoolbefore
turning it on.
16. Avoid unintentional starting
Donotcarryaplugged-intoolwithngeronswitch.Besuretheswitchisoffwhen
plugging in.
17. Outdoor use extension cords
When tool is used outdoors, use only extension cords intended for use outdoors and
so marked.
18. Stay alert
Use caution and do not operate tool when you are tired or on medication.
19. Check for damaged parts
Beforefurther useof thetool, aguard orother partthat isdamaged shouldbecarefully
checked to determine that it will operate properly and perform its intended function.
Check for alignment of moving parts, breakage of parts, mounting, and any other
conditions that may affect its operation.A guard or other part that is damaged should
be properly repaired or replaced by an authorized service center unless otherwise
indicated elsewhere in this instruction manual. Have defective switches replaced by
authorized service center. Do not use the tool if it cannot be turned on and off by the
switch.
20. Warning
Theuseofanyotheraccessoryorattachmentotherthanrecommendedinthisinstruc-
tionmanualorthecatalogmaypresentariskofpersonalinjuryandcouldvoidthe
warranty.
21. Onlyqualiedtechniciansshouldrepairthistool
This electric tool is manufactured in accordance with the standard safety rules. Only
expertsmay carryout therepair ofelectric tools;otherwise, itmay causeconsiderable
danger for the operator.
6
ADDITIONALPRECAUTIONSFORUSINGTHEAWP-158
In addition to the general safety notes described on the preceding pages, please read and
observe the following precautionary notes before using the polisher.
DANGER!
1. Check the working voltage.
Besurethevoltageavailableatpoweroutletmatchesspeciedvoltageonthename-
plate.Ifthepolisherisusedwithhighervoltagethanspecied,themotorwillburnout.
Anyattemptstodosomaydamagethepolisherorcauseanaccidentorinjury.
2. Inspect all polishing discs.
Never use cracked, chipped or damaged polishing discs.
3. Hold the polisher tightly at start-up.
Failuretodosomaycauseaninjuryduetohighimpactatinitialstartup.
4. Stop using the polisher immediately when noticing any malfunctions or any
suspicious abnormal noises.
Turn the power switch OFF and contact your dealer or Alpha Professional Tools for
repair.
5. Handle the polisher with care.
If you accidentally drop the polisher, do not use it until checking that it is not cracked,
deformed, or damaged in any way.
6. Donotpourwateroranyliquidsontoorinsidethepolisher.
It may cause electric shocks.
7. Do not hold the polisher in a vice.
8. Do not touch any rotating parts.
Never touch the polishing disc of the polisher during operation with your hands.
9. Donotleavethediscwhilespinningonthebench,oororsurfaceofyour
workpiece.
Itmaycauseanaccidentorinjury.
7
WARNING!
10. Attach the backer pad and polishing disc correctly by following the procedure
in this instruction manual.
Attaching the polishing discs incorrectly may cause an accident.
11. Observe any suspicious abnormal noises when a polishing disc is attached for
thersttimeandpolisheristurnedON.
Itmaycausebodilyinjuryifthepolishingdisciesoff.
12. Do not touch the polishing disc while spinning.
The polishing disc spins very fast and you may hurt yourself.
13. Be careful of your surroundings when working in high places.
When working in high places, make sure there are no people below. Do not to trap the
powersupply cord onanything ordrop thepolisher orany materials,otherwise,Itmay
cause an accident.
ABOUT DOUBLE INSULATION
This polisher is designed with double insulation. Two insulations are used between the
conductorandtheouterbodyofthepolisher. AnElectricPolisherwiththedoubleinsulation
highlyimprovessafetyfromelectricshocks.Donotattachorreplaceunspeciedpartsand
do not assemble incorrectly. This may cause the insulation to malfunction.
8
PREPARATION BEFORE OPERATION
1. GFCIInformation.
– SincetheAlpha®WetPolisherisdesignedwithdoubleinsulation,anin-lineGFCIis
provided as a standard accessory. For your safety and to prevent possible electric
shocks,itisstronglyadvisedtotesttheGFCIonaregularbasis.
Note:TheGFCImustbeusedforyoursafetywhenthispolisheris
used anywhere in a damp environment, when used with water, or
when it is used on metal plates, steel frames or platens.
Never attach a damaged extension cord to the polisher.
Note: Use the appropriate extension cord as referred below. The
table shown below is for 115V use. For 220V use, the maximum
length of a cord may be twice as long as the cord for 115V.
LAWSANDREGULATIONSOFNOISELEVELS
Pleaseobservelocal lawsand regulationsregarding noiselevel inorder toavoid disturbing
surroundingareas.Installasoundproofwallifrequiredtocomplywiththelocallawsand
regulations.
Gauge/AWG Maximum Length
1.25mm230 Ft / 10m
2mm245 Ft / 15m
3.5mm290 Ft / 30m
DANGER!
9
Handle A
(C-Handle)
Polishing Disc
RubberGuard
Power Switch
Flat Polishing Caster
SPECIFICATIONS
Working Power Supply ................................................ Single-phase AC, 50/60 Hz
Voltage........................................................................... 110V / 220V
Amperage...................................................................... 7.8A / 3.8A
Wattage.......................................................................... 800W
Motor ............................................................................. Single-phase
No Load......................................................................... 3,000 R.P.M.
Polishing Disc Size ...................................................... 4”/100mm
Arbor.............................................................................. 5/8-11”/M14-2/M16-2
Weight ........................................................................... 6lbs / 2.7kg
Cord............................................................................... 10ft / 3m single-phase cable
AWP-158 OVERVIEW
10
STANDARD ACCESSORIES
Flat Polishing Center Side Handle Carbon Brushes GFCI
Rubber Guard Wrenches Hose Fitting C-Handle
BEFORE USE
DANGER!
Beforeusing thepolisher, checkthe followingitems. In particular, checkitems 1to 5before
plugging the power supply cord into the power outlet.
1. Check the working voltage.
– Besurethevoltagespeciedonthenameplateisthevoltageavailableatthepower
outlet.Ifthepolisherisusedwithhighervoltagethanspecied,themotorwillburnout.
Any attempts to do so may damage the polisher and/or cause an accident.
2. Make sure the ON/OFF switch is off.
– If you plug in the power supply cord without realizing that the switch is ON, the
polisher will start and may cause an accident.
– When the switch is slid forward, the polisher is turned ON.
– When it is slid backward, the polisher is turned OFF.
– Make sure the switch is slid backward in OFF position before plugging
the cord in the power outlet.
3. Inspect the protective disc cover.
– Do not remove the rubber guard. It will protect you if the polishing disc breaks and
against being splashed with water.
– Besuretormlyattachthepolishingdiscoranyoptionalaccessory.
4. Inspect the backer pad and polishing disc.
11
– Checkifyouhaveaspeciedbackerpadandpolishingdiscs.
– Never use cracked, chipped, or any damaged backer pads or polishing
discs.
– Followtheproceduresspeciedintheinstructionmanualtoproperlyattach
applicable accessories.
5. Check the power outlet.
– When the plug of the power supply cord is easily pulled out of the power outlet, the
outlet should be replaced. For such task, consult an electrician. If the power outlet
is used on a continuous basis, it may overheat and cause accidents.
6. Perform test runs.
WARNING!
1. Before turning the switch ON, make sure the rotating parts are not touching
anything. If the switch is turned ON while they are in contact with anything
else,thediscmaygetdamagedanditmaycauseinjuries.
2. When a new disc is attached and the switch is turned ON, keep your body
well away from the exposed sides of the disc for a moment until the polisher
reaches its full speed.
It is very dangerous to perform polishing operations using cracked, chipped or damaged
discs. Before starting polishing operations, keep the wheel away from anyone nearby. Be
sure to perform a few test runs to check whether there are any abnormalities.
Test run duration:
• After replacing a polishing disc……………………at least 1 minute
• Before starting operations each day...................at least 1 minute.
PREPARATION & INSPECTION
About the applicable standard accessories
Attaching and removing standard and/or optional accessories.
DANGER!
Be sure to unplug the power supply cord from the power outlet before attaching or remov-
ing recommended accessories to prevent accidents. Starting the motor accidentally may
causebodilyinjury.
12
WARNING!
Be sure to tighten any loose screws and applicable accessories.
1. Backer Pad Attachment
Procedures (Figure–1)
a) Place the polisher upward to attach the
backer pad onto the spindle.
b) Slide the wrench into provided slot located
in the front of polisher to lock the spindle
and proceed tightening the backer pad.
c) Remove the wrench.
d) Center andattach thepolishing disconto thebacker padby securelypressingonto
the attachment.
e) Cut rubber guard according to your needs.
Note: If using the Alpha®TwistouchTurbosystemforatarea
applicationstogetherwiththeatpolishingcaster,a“SPACER
RING”maybeneeded tobeplacedbetweenthespindleof
AWP and Twistouch Adapter to level the height of the Twistouch
Turboabrasiveswiththeatpolishingcaster.)
2. Attaching the water hose. (Figure–3)
a)Attachthepolisherwaterhosettingtoa
regulargardenhosebytighteningthetting.
Thepolisherwaterhosettingwilltonany
garden hose.
3. Attaching the C handle (handle A).
( Figure -4) The C handle (handle A) delivers
better control and stability of the polisher when
used with any of the following accessories;
atpolishingcaster,coredrillbitorTwistouch
Turbo.
a) Slide the C handle (handle A) onto the gear
case and match the holes pattern.
b) Insert provided two screws (M8X16) into the
holes and tighten them to securely attach
the C handle (handle A) onto the gear case.
Note: Do not overtighten the two screws (M8X16). Doing
Figure-2
Figure-3
Figure-4
13
so you will risk stripping the threads.
4. Attachingtheatpolishingcaster.
Theatpolishingcasterwasdesignedtoaid
polishing at surfaces. To perform properly
such application you need to have the C-handle
(handle A) mounted. (Figure- 5)
a) Open the metallic strap to place the auxiliary
frame onto the motor. Make sure the water
pipematchesthetwoslotslocatedatthebaseofatpolishingcaster.The
rollers should face the same position as the spindle.
b)Lockthemetallicstraparoundthemotortosecurelyattachtheatpolishing
caster.
REMOVAL PROCEDURES
Repeat the attachment procedures in reverse order.
About the applicable optional accessories
TheAWP-158isequippedwith5/8”-11spindlethread.Therefore,itcanbeequippedwith
a multitude of optional accessories as recommended below.
1. Alpha®Rubber or Rigid Backer Pads for Alpha®Ceramica Flexible Diamond
Discs or Alpha Sand Paper
2. Alpha®Core Drill Bit
3. Alpha®Twistouch Turbo
4. Alpha®PVA - Quick Change Style
HOW TO POLISH
Figure-5
Rubber Backer Pad Rigid Backer Pad Core Drill Bit TwistouchTurbo PVA - Quick
Change System
1. 2. 3. 4. 5.
14
DANGER!
1. Duringoperation,besuretowearpersonalsafetyequipment.
2. If you accidentally drop the polisher, do not use the polisher until
checking that it is not cracked, deformed, or damaged. Check the
polishing disc as well.
Beforeplugging thepowersupplycordintothepoweroutlet,makesuretheswitchisturned
OFF. If you plug in the power supply cord without realizing the switch is turned ON, the
polisher will start and it may cause an accident.
1. Water valve operation
– TurnONthewatervalvelevertoallowwatertoowthroughthepolisher.
2. Switch operation
– Push the switch lever forward to start the polisher. Wait until the motor has
reached its constant RPM (revolutions per minute).
3. Polishing procedure
– When the polishing disc comes into contact with the workpiece make contact
slowly.
– Proceed polishing in a desired pattern using all polishing discs in recommended
sequence.
4. Applying force onto the polisher
– Do not apply more force onto the polisher than the force created by the weight
of the polisher itself. The polishing disc is designed to work properly under light
weight.
– Applying excessive force or pressure may damage the disc and could shorten
the machine’s service life. Such action will decrease rotation speed, which reduces the
efciencyofpolishingactionandjeopardizepolishingresults.
CAUTION!
5. Precautions immediately after use.
– After using the polisher, turn OFF the switch.
– Once the disc stops rotating completely, put the polisher in a safe place. It may
cause a unexpected accident if you touch the disc before the disc stops rotating.
15
GROUNDFAULTCIRCUITINTERRUPTER:
AGroundFaultCircuitInterrupter(GFCI)ismountedattheendofpowersupplycord.The
GFCIgoesOFFwhenwaterentersinsidethetool’shousingpreventingtheoperatorfrom
electric shocks.
DANGER!
WhentheGFCIgoesOFF,theResetbuttonpopsup.Thisis
the result of water entering the polisher housing. Turn OFF the
power switch and blow dry air inside the motor cover through
theairvents.PresstheGFCIResetbutton.Thepolisheris
ready to start working after the reset button is pressed down.
(Figure-6)
WARNING!
1. DonotremovetheGFCI.
2.CheckitemsbelowwhentheGFCIgoesOFFfrequently.
•Forceappliedonthepolisher.
•Waterenteredinsidethepolisher.
•Voltagedropduetosharingthesamepowersourceinworkarea.
MAINTENANCE AND INSPECTION
DANGER!
Before servicing the polisher, turn the switch OFF and unplug the power supply
cord from the power outlet.
1. Check the attaching screws.
– Before starting any operation, inspect polisher for loose screws.
– If the polisher is used with loose screws, it is dangerous. Be sure to tighten them.
Reset
Test
Figure-6
16
2. Checking the carbon brushes.
– Carbon brushes are located inside the motor . They wear out over time
based on polisher usage.
– If a carbon brush is worn out, it may cause the motor to malfunction or fail.
Whenever the length of the carbon brush reaches the wear limit , replace it
with a new one.
• Keep the carbonbrush clean, soit can slide freely in its brush holder.
CAUTION!
HOW TO REPLACE CARBON BRUSHES
When replacing used carbon brushes
with new ones, be sure to use only Alpha®
genuine carbon brushes.
1. Disassemble.
– Remove the grounding screw from
rear of the motor to release ground-
ing wire.
– Remove all screws from the rear
of the motor to release water line
mounting plate.
– Slide out the motor cover.
– Locate the carbon brushes and
pull the torsion spring with needle nose pliers. While holding the torsion
spring, pull out the carbon brush.
– Pull the solderless connector on the carbon brush off of the terminal.
2. Assembly.
– Replace worn out carbon brushes with new ones and proceed assembling
in reverse order described above.
CAUTION!
Donot pullthe carbon brushoutofits holderby thepigtailwhile thetorsionspring isloaded,
doing so will damage the torsion spring.
• Afterinstallingthenewcarbonbrushesplacethemotorcoverandtighten
the screws.
If dust or dirt settles inside the motor, it may cause the polisher to malfunction. After
50 hours of operation, run the motor in no load mode and blow dry air through the
vents of motor body. This is effective for removing dust or dirt.
Figure-7
17
3. Cleaning the surface of the polisher.
– Donotusepaintthinner,gasolineoranyammableuidstocleanthepolisher.It
may cause damage to its surface. Use a dry or damp cloth with a mild detergent
dissolved in water.
4. Store the polisher and parts in a safe place.
Do not store the polisher in following areas.
– Where children can reach the polisher.
– Where it can be easily tampered with.
– Wheretemperatureandhumidityuctuate.
– Where the polisher is exposed to direct sunlight.
– Near ignitable or explosive materials.
SERVICES AND WARRANTY INFORMATION
REPAIR
Although this polisher is precisely manufactured and assembled, do not try to repair it by
yourself if it does not operate normally. Contact your dealer orAlpha Professional Tools®
for authorized repairs.
LOANERPROGRAM
Loaner tools can be issued to temporarily replace a tool that is being returned to Alpha®
for repair. If more than one tool is being returned for repair, the number of loaner tools
provided will be based on availability.
Ifaloanertoolisrequired,contactAlpha®Tool Department at
(800) 648-7229 to receive a Loaner Tool Application. A valid credit card number must be
provided as a security deposit. The credit card will only be charged if the loaner tool is not
returned toAlpha®within30days.Anauthorizedsignatureisrequiredforthecreditcard
beingused.Asecondsignatureisrequiredasanagreementoftheoverallpolicy.
NEED MORE INFO?
Forinformation onAlpha Professional Tools®complete productline, visitus onthe webat
www.alpha-tools.com
18
ALPHA®AWP-158 SCHEMATIC
19
DRAWINGNO. PART NO. DESCRIPTION QUANTITY
1 AWP-01 RubberSplashGuard 1
2 AWP-02 Set Screw (M5x4) 3
3 AWP-03 Ring Adapter 1
4 AWP-04 Water Jet 1
5 AWP-05 Supporting Ring 2
6 AWP-06 Gasket 3
8 AWP-08 Hex Head Screw M4x12 4
9 AWP-09 GearCap 1
9A AWP-34-1 Rubber Plug 2
10A AWP-10A Spindle5/8”-11 1
10B AWP-10B Spindle M14-2 1
11 AWP-11 Key 1
12 AWP-12 Sealing Ring 2
13 AWP-13 Ring Cover 1
14 AWP-14 Ball Bearing 6001ZZ 1
15 AWP-15 Distance Ring 1
16 AWP-16 Sealing Ring 48x1.2 1
17 AWP-17 Spring Washer 25mm OD 1
18 AWP-18 Crown Wheel 1
19 AWP-19 Water Line Clip 1
20 AWP-20 Bushing Brass 13mm OD 1
21 AWP-21 Handle (C-Shape) for AWP-158 1
22 AWP-22 Screw M8x4 2
23 AWP-23 Self-Tapping Screw 3.9x30 4
24 AWP-24 Screw M8x16 2
25 AWP-25 Center Water Feed Tube 1
26 AWP-26 Center Water Feed Adapter 1
27 AWP-27 Screw M4x25 2
28 AWP-28 Hose 8x5x4 1
29 AWP-29 GearCase 1
30 AWP-30 Washer 23mm 1
ALPHA®AWP-158 PARTS LIST
20
DRAWINGNO. PART NO. DESCRIPTION QUANTITY
31 AWP-31 Threaded Bushing 1
32 AWP-32 Washer 25.5mm O.D. 1
33 AWP-33 PinionGear 1
34 AWP-34 Ball Bearing 6000DDW 1
35 AWP-35 Bearing Cover 1
36C AWP-36C Armature Assembly - 110V 1
36D AWP-36D Armature Assembly - 220V 1
37 AWP-37 Ball Bearing 607DDW 1
38 AWP-38 Water Line Clip/small 1
39 AWP-39 Screw M4x8 1
40 AWP-40 Switch Lever 1
41 AWP-41 Water Pipe 1
42 AWP-42 Switch Rod 1
43 AWP-43 Compression Nut 1
44 AWP-44 Compression Ring 1
45 AWP-45 Pipe Adapter 1
46 AWP-46 Gasket 2
47 AWP-47 Self-Tapping Screw 3.9x60 2
48 AWP-48 26mm Stop Spanner 1
49 AWP-49 Motor Case With Brush Holders 1
50 AWP-50 Sealing Ring 61x1.2 1
51 AWP-51 Cover 1
52 AWP-52 Water Line Mounting Plate 1
53 AWP-53 Self-Tapping Screw 3.9X20 4
54 AWP-54 Water Valve (for AWP-158) 1
ALPHA®AWP-158 PARTS LIST
This manual suits for next models
3
Table of contents
Other Alpha Sander manuals
