Alpha Tool.Com.HK Limited Polisher WDP120 User Manual

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ALPHA® WDP-120 PARTS LIST 
DRAWING	NO. PART	NO. DESCRIPTIONQUANTITY
71 210105Pin	Wrench 1
not	shown 210087Blow	Mold	Case 1
72 500032Main	Cover 1
73 500033Sub	Cover 1
74 500034Half	Cover 1
75 500041Brush-A 1
76 500042Brush-B 1
77 500037Screw	M4x10 4
78 500005Rubber	Hose	Adapter 1
79 310008Stainless	Steel	Hose	Band 1
80 310009Rubber	Cap 1
59 310010Water	Hose-A		6x8x510(mm) 1
82 310011Hose	Connector 2
83 310012Water	Hose-B		6x8x35(mm) 1
84 310013Water	Hose-C		6x8x40(mm) 1
85 310014Seal 1
86 310105Brand	Label	(Guard) 1
87 310016Holder	Spring 4
88 310017Set	Plate 1
89 310018Connector-A 1
90 310019Connector-B 1
91 310020Screw	M4x16	w/Spring	Washer 2
92 310021Screw	M4x10 3
93 110301Inner	Flange 1
94 210301Lock	Nut 1
95 210108Rubber	Band 1
96 210107Splash	Sleeve 1
   
						

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SERVICES AND WARRANTY INFORMATION
   LOANER PROGRAM
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.		
If	a	 loaner	 tool	is	required,	 contact	Alpha
®	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	 to	
Alpha
®	within	30	days.		 An	authorized	signature	is	required	for	the	credit	card	being	
used.		A	second	signature	is	required	as	an	agreement	of	the	overall	policy.									
   NEED MORE INFORMATION 
For	information	on	Alpha	Professional	Tools
®	complete	product	line,	visit	us	on	the	
web	at	www.alpha-tools.com
   ALPHA® TOOL REPAIR SERVICE
For	 more	 information	 concerning	Alpha®	tool	 repair	 service,	 please	contact	 the	Alpha®
repair	centers	listed	below:
COMPANY HEADQUARTERS:    Alpha Professional Tools® 
     103 Bauer Drive
     Oakland, NJ 07436
Hours of Operation :     8:30 a.m. – 5:00 p.m. EST
Telephone Number:      201-337-3343
Toll-Free Number:      800-648-7229
Limited Warranty of Alpha® Wet Polisher  for the USA and Canada ONLY!
Alpha  Professional  Tools®  warrants  this  product  against  defects  in  material  and 
workmanship for a period of 180 days from the date of original retail purchase (proof 
of  purchase  required).  If Alpha  Professional Tools
®  receives  notice  of  such  defects 
during the warranty period, our obligation assumed under this warranty is limited to 
the repair or replacement of parts, without charge. This warranty does not apply to 
tool accessories.
For Warranty Claims:  Send complete tool with all your information and details of the 
problem to your nearest Alpha
® Repair Center, transportation prepaid. Do not send 
tool accessories.
   WARRANTY 
						

							i
APPENDIX	A
	FREQUENTLY	ASKED	QUESTIONS
Q.	 What	applications	is	the	Alpha®	WDP-120	recommended	for?
A.	 The	Alpha®	WDP-120	is	recommended	for	wet	or	dry	polishing.
Q.	 What	is	the	warranty	for	this	WDP-120?
A.	 Alpha	Professional	Tools
®		warranties	the	WDP-120	against	defects	in	material	
and	 workmanship	 for	a	period	 of	180	 days	 from	the	date	 of	original	 retail	purchase 	
(proof	 of	 purchase	 required).	 Please	 complete	 the	 warranty	 registration	 card	
upon	receipt	and	mail	immediately	for	prompt	warranty	service.	Our	obligation	
assumed	 under	 this	 warranty	 is	 limited	 to	 the	 repair	 or	 replacement	 of	 parts	
without	charge.	The	warranty	does	not	apply	to	tool	accessories.	The	warranty	
for	repairs	is	30	days	on	the	parts	and	labor.
Q.	 Does	the	WDP-120	have	a	maintenance	program?
A.	 Alpha	 Professional	 Tools
®	 does	 not	 offer	 any	 type	 of	 maintenance	 program.	
However,	 we	do	recommend 	periodic	 checking	 and/or	replacement 	of 	the 	carbon 	
brushes	 for	 extended	 service	 life.	 If	 you	 should	 hear	 or	 detect	 unusual	 noise	
during	the	operation	of	the	WDP-120,	we	recommend	that	you	send	it	in	to	our	
repair	department	for	some	preventative	maintenance.
Q.	 What	is	the	RPM	of	the	WDP-120?
A.	 This	polisher	is	a	variable	speed	polisher	with	an	RPM	range	of	500	–	2,800.
Q.	 What	 shall	 I	 do	 if	 my	 WDP-120	 breaks	 down	 and
	 I	 need	 to	 complete	 the	 job	
immediately?
A.	 This	 largely	 depends	 upon	 the	 time	 frame	 involved.	 The	 first	 step	 would	 be	 to	 check	 and	 replace	 the	 carbon	 brushes.	Alpha	 Professional	 Tools
®	 has	 two	
warranty	 service	centers	 and	can	turn	 your	 tool	repair	 around	 in	a	3-5	day	 period.
Please	 contact	 Alpha
®	for	 information	 or	send	 tool	to	your	 nearest	 regional	 repair	
center.		For	additional	information	or	alternative	solutions,	please	contact	our	
tool	repair	department.
Q.	 The	GFCI	is	tripping	frequently.	What	I	can	I	do?
A.	 If	the	GFCI	is	tripping	frequently,	there	could	be	several	problems. 	 1.	 Water	is	getting	inside	the	polisher.		 Dry	the	tool	with	compressed	air	and	try	
to	prevent	water	from	getting	into	the	polisher.
	 2.	The	voltage	drops	due	to	sharing	the	same	power	source	in	a	work	area.
	 3.	To o 	much	force	is	applied	to	the	tool.		Back-off	on	the	pressure.
	 4.	 The	outlet	may	be	loose.		Make	sure	the	power	cord	plug	is	tightly	inserted	 in	the	power	outlet.
	 5.	Contact	Alpha	Professional	Tools
®	tool	repair	department	for	further	advice.
Q.	 If	my	WDP-120	breaks	down,	whom	should	I	contact	for	repair?
A.	 Contact	the	dealer	where	you	purchased	the	tool	or	Alpha	Professional	Tools
®
directly	at	800-648-7229. 
						

							ii
Q.	 Can	I	use	my	WDP-120	as	a	wet	cutting	tool	with	a	diamond	blade?
A.	 No.	The	WDP-120	only	has	a	2,800	no	load	RPM	rating.	This	is	not	enough	RPM	for	cutting	applications	with	a	diamond	blade.	It	is	unsafe	to	use	the	WDP-120	
as	a	cutting	tool.		Do	not	attempt	to	cut	with	the	WDP-120.
Q.	 Can	I	use	my	WDP-120	for	dry	polishing	applications?
A.	 Yes.	 The	WDP-120	 is	designed	 for	wet	 and	 dry	applications.		 Alpha
®	recommends 	
using	our	HEPA	Vacuum	for	dry	polishing	applications.
Q.	 How	can	I	get	the	parts	list	and	schematic	for	the	WDP-120?
A.	 There	 are	several	 ways	to	obtain	 information	 such	as	this	 from	 Alpha	 Professional 	
Tools
®.		It	is	available	on	our	website	www.alpha-tools.com	or	by	contacting	our	
Tool	Dept	Help	Desk	at	800-648-7229.
Q.	 What	is	the	proper	RPM	for	polishing	Engineered	Stone?
A.	 As	a	wet	polishing	tool,	any	RPM	range	on	this	polisher	will	work	for	polishing	 engineered	stone.	Using	slower	RPM	together	with	the	Alpha
®	Ceramica	EX	will	
provide	 the	 optimum	polish	on	engineered	 stone	material.		 Alpha®	does	 not	
recommend	dry	polishing	on	engineered	stone.
Q.	 What	is	the	largest	diameter	accessory	that	the	WDP-120	will	accept?
A.	 The	 WDP-120 	will	 accept	 accessories	 up	to	5”.		 Do	not 	attempt	 to	use
 	accessories 	
larger	than	5”	for	safety	reasons.		In	addition,	large	accessories	require	more	
torque	 than	the	WDP-120	 can	provide.	 Operating	 the	WDP-120	 under	these	
conditions	will	result	in	overheating	failure.
Q.	 Can	I	use	the	WDP-120	for	drilling	applications	such	as	faucet	holes?
A.	 No.	The	WDP-120	cannot	be	used	with	Alpha
®	Core	Bits	to	drill	faucet	mounting	
holes.	 We	recommend	 using	the	VSP-120	 with	the	provided	 C-Handle	 attachment 	
and	a	template.
Q.	 How	many	gallons	of	water	does	the	Alpha
®	WDP-120	use	per	minute?
A.	 The	Alpha®	WDP-120	has	a	throughput	of	approximately	1.1	gallons	per	minute	
with	the	water	valve	fully	open.
Q.	 Can	I	use	WDP-120	for	edge	polishing	applications?
A.	 Yes.		 The	WDP-120	can	be	used	for	exterior	edge	polishing	applications.		 Due	
to	the	dust	cover	we	do	not	recommend	using	for	sink	rim	applications.		For	the	
best	 results,	 we	recommend	 5”	polishing	 products	for	all	polishing	 applications.
 HELPFUL	HINTS
1.	 If	your	WDP-120	does	not	start,	check	the	carbon	brushes	for	proper	seating.
2.	 If	the	WDP-120	does	not	re-start,	check	and	reset	the	GFCI.
3.	 Avoid	dragging	the	WDP-120	on	top	of	stone	surfaces.		The	aluminum	body	may	
leave	marks	on	the	surface.
4.	 Release	water	by	opening	the	water	control	valve,	then	hang	dry	for	storage. 
						

							PRODUCT REGISTRATION CARD
Model No.                 Serial No.
Company	Name:	______________________________________________
Name:	______________________________________________________
Address:	____________________________________________________
City:	_______________________State:	________Zip:	________________
Telephone:	___________________________________________________
Purchase	Date:	_______________________________________________
Dealer’s Name: _________________________________ Note:		Serial	&	Model	Number	must	be	included	for	proper	registration.
(800) 648-7229
Mail or Fax to:
Alpha Professional Tools
®
103 Bauer Drive, Oakland, NJ 07436 Fax: 800-286-0114
Register	online	at:	
www.alpha-tools.com/productregistration.aspx 
						

							Copyright © 2013 Alpha Professional Tools. All rights reserved. 
103 Bauer Drive, Oakland, NJ 07436 • 800-648-7229 • Fax: 800-286-0114
www.alpha-tools.com
Assembled	in	China Revised: 12/2013