Makita BO4551 User manual

Finishing Sander
Model BO4551
useshook-and-loopsandpaper
INSTRUCTION MANUAL
Specifications
Pad size
I No loadspeed (OPM) I Dimensions (L x W x H)
I Net weight
4 '12" x 4 14,000 4 314'' x 4 112" x 5 3/13" 2.1 Ibs.
I
* Manufacturerreservesthe rightto change specificationswithout notice
* Note: Specificationsmaydiffer from country to country.

READ
1.
2.
3.
4.
5.
ALL INSTRUCTIONS.
eep work area clean, Clutteredareas and benches inviteinjuries.
onsider work area environment. Do not usepower tools indamp or wet
se tool inpresence
of flammable liquidsor gases.
Keepwork areawell lit.
Do notexpose powertools to rain. Do not
Keep children away. All visltorsshould be kept away from work area. Do not
let visitorscontact
tool or extensioncord.
Store idletools. When not in use, tools shouldbe locked-upor storedina
dry, highplace
- out of reachof children.
Do not force tool. It will do thejob betterand safer at the ratefor which it was
intended.
'
2
Usecorrect tool. Do notforce small tool or attachment to do the job of a
Dress appropriately. Do notwear looseclothingor jewelry. They canbe
heavy-dutytool.
Do not use tool for purposenot intended.
caught inmovingparts. Rubber gloves andnon-skidfootwear are
recommendedwhen working outdoors. Wear protectivehaircovering
to
8
9.
1c.
1'.
I?.
13.
4.
15.
containlong hair.
Use safety glasses. Also use face or dust mask if cuttingoperationis dusty.
Do not abuse cord. Nevercarry tool by cordor yank it to disconnect from
receptacle. Keep cordfrom heat,oil, andsharp edges.
Secure workpiece. Use clamps or a vise to holdwork. It is safer than using
your hand;
it also leavesbothhandsfree to operate tool.
Do not over-reach. Keep properfootingand balanceat all times.
Maintaintools with care. Keep tools sharp and cleanfor betterand safer
performance. Follow instructionsfor lubricatingandchangingaccessories.
Inspect
tool cordsperiodicallyand, if damaged, have repaired by authorized
servicefacility. Inspect extensioncords periodicallyand replace
if damaged.
Keep handlesdry, clean, and freefrom oil and grease.
Disconnecttools when not inuse, beforeservicing, and when changing
accessories, such as blades,bits, and cutters.
Removeadjusting keys and wrenches. Check to ensure that keysand
adjustingwrenches are removed from tool before turningthe tool on.
Avoid unintentional starting. Do notcarryplugged-in tool with finger on
switch. Besure switch is
OFF when pluggingin.

~
16.
17.
18.
19.
20.
21.
VOI
OUtll
nam
the
dou
the
1.
2.
3.
-
SAFETY INSTRUCTIONS continued
htdoor useextension cords. When tool is usedoutdoors, useonly
xtension cordsintendedfor outdoor useand
so marked.
itay alert. Watchwhat you are doing. Do not operate
tool when you are tired.
:heck damaged parts. Beforefurther useof the
tool, a guard or other part
iatis damagedshould be carefullychecked
to determinethat it will operate
lroperly and performits intendedfunction. Checkfor alignmentof moving
#arts,bindingof movingparts, breakageof parts, mounting,and any other
onditionsthat may affect
tool operation. A guard or other partthat is damaged
houldbe properlyrepairedor replacedby an authorizedservicecenter unless
Itherwise indicatedelsewhere in this instructionmanual. Defectiveswitches
houldbe replacedby an authorizedservicecenter. Do not use
tool if the
witch does not turn it on and off.
iuardagainst electric shock. Preventbody contact with groundedsurfaces,
irexample: pipes, radiators,ranges, refrigeratorenclosures.
leplacementparts. When servicing, useonly identicalreplacementpart.
'olarized plugs:
To reducethe riskof electricshock,this equipmenthasa
lolarizedplug(onebladeis wider thanthe other). This plugwill fit in a
Nolarizedoutletonly one way.
If the plugdoes not fit fully inthe outlet, reverse
ieplug. If it still does not fit, contact a qualifiedelectrician
to installthe proper
Nutlet. Do not change the plug in any way.
AGE WARNING: Beforeconnectingthe tool
to a powersource (receptacle
etc.) be surethe voltagesuppliedis the same as that specifiedon the
ilate of the
tool. A power source with voltagegreaterthan that specifiedfor
)I can result in SERIOUS INJURYto the user,as well as damagethe tool. If in
DO NOTPLUG INTHE TOOL. Usinga power sourcewith voltage lessthan
meplate ratingis harmful
to the motor.
ADDITIONAL SAFETY RULES
ioldthe tool firmly.
lo not leavethe tool running. Operatethe tool only when hand-held.
rhis
tool has not beenwaterproofed, so do not usewater on the workpiece
;urface.
SAVE THESE INSTRUCTIONS
3

INSTALLATION
CAUTION:Always be sure the tool is switched off and unpluggedbefore
installingor removingthe paper.
Attaching the Sandpaper
IMPORTANT: Use Makitahook-and-loopsandpaperwith this sander.
To attachthe sandpaper:
1.
2.
Setthe tool upsidedown so that
the pad is on top.
Positionthe sandpaper
to fit the
shapeof the base. Be sureto
alianthe holeson the SandDaper
with the holeson the pad (the
dust will be suckedintothese
holes; it isthereforeimportant
to
leavethem open).
Pressthe paper firmly over the pad.
3.
Removing the Sandpaper
To removethe sandpaper:
1. Setthe tool upsidedownso that
the sandpaperis on top.
2. Graspingone cornerof the
sandpaper,peel it from the pad.
Note: If thesandpaper is in good
condition,saveit for future use.
I
Dust Bag
The useof the dust bag makessanding
operationsclean and dust collection
easy.
To attachdust bag:
1. Fitthe bag'sentry port onto the
dust spout on the tool. Make
sure that the hole in the bag's
entryport isjust over the pimple-
like protrusionon the dust spout.
Note: Forthe best results, emptythe dust bag when it becomesapproximately
half full,tapping it lightlyto removeas muchdust as possible.
4

0 PE RAT1 0 N
CAUTION: Do not block the motor vent with your hand.
Neverrunthe tool without paper;you may seriouslydamagethe
pad.
Switch Action
To startthe tool: I
Operatingthe Tool
To operatethe tool:
1. Holdthe tool firmly.
2. Turnthe tool on and wait until it
attainsfull meed.
3. Gently placethe tool onto the
workpiece and apply pressure
to
sandthe workpiece surface.
Operating Tips
* A finishingsander isgenerally usedto removeonly a smallamount of
materialat a time. Sincethe quality of the surface is more importantthan
the amountof stock removed,
do not bear down on the tool.
* Keepthe baseflushwith the workpiece at all times.
* Excessivepressuremay damagethe paper andshorten tool life.
5

MAINTENANCE
6o
CAUTION: Always be sure that the tool is switched off and unpluggedbefore
attemptingto performinspectionor maintenance.
COARSE- For heavy sanding and
stripping.Paint and rust removal.
Carbon Brushes
The tool will stop when the carbon brusheswear to a certain length. When
this occurs,bothcarbon brushesshould be replaced.
To maintainproduct SAFETYand RELIABILITY,repairs, carbonbrush inspectionand
replacement,or any other maintenanceand adjustmentshouldbe performedby
MakitaAuthorizedor FactoryServiceCenters, always using Makitareplacement
parts.
OPTIONAL ACCESSORIES
The accessorieslistedinthis manualare availableat an extracost from your Makita
distributoror Makitafactoryservicecenter. Servicecentersare listedon the
warranty card packedwith your
tool.
CAUTION: These accessories or attachments are
recommendedfor usewith your Makitatool
specified in this manual. The use of any
other accessoriesor attachments might
present a risk of injury to persons. These
accessories or attachments should be used
only in the proper
and intended manner.
4" x 4 '12'' Sanding Paper
with Hook-and-loop backing
(multi-purposefor sanding
wood and metal).
PART
NO.
742529-7
742520-A
742530-2
742531-0
742521
-A
742529-74
CITY.
PER
PKG.
5
-
5
5
5
5
-
-
Dust bag
part no. 166027-1
GRIT I
USAGE
~~
MEDIUM COARSE - For fast stock
8o I removal and medium coarse finish.
MEDIUMFINE - Moderately fast
stock removal and medium finish.
EXTRA FINE - For very smooth
coats of finish material.
5 ASSORTED SHEETS - 2 each 60 Grit, 100 Grit & 150 Grit. I
6

FINISHING SANDER
Model BO4551
7

PARTS OF THE FINISHING SANDER
Item
No.
14
15
17
18
19
20
22
23
24
25
26
27
28
29
30
Item
No.
Qty. Description
Used
1 FanGuide
2 Foot
4
1 RubberSleeve48
1 FlatWasher6
1
1 Base
1 DustBag
1 Cord
1 Switch
1
1
1
2
1 Plate85
Pan HeadScrew M4
x 12(withWasher)
CountersunkHeadScrew
M4 x 12
HousingSet (withitem 5)
Tapping Screw BT4
x 40
Tapping Screw BT4
x 25
Tapping Screw BT4
x 50
1
2
3
4
5
6
7
8
9
10
11
12
13
Qty.
ked
2
2
1
1
1
1
1
1
2
1
1
1
1
Description
BrushHolder
Carbon Brush
BailBearing626LLB
ARMATURE ASSEMBLY
(with items3, 4, 7, and
8)
HousingSet (withitem 26)
FIELDASSEMBLY
FiatWasher 9
BallBearing629LLB
Tapping Screw
BT 4 x 16
NamePlate
Fan63
Dust Seal 10
BallBearing6200LLB
II
II
MAKITA LIMITEDONE YEAR WARRANTY
WARRANTY POLICY
Every Makita tool is thoroughly inspectedandtested beforeleavingthefactory. It is warranted
to befree of defectsfrom workmanship and materialsfor the periodof ONE YEAR from the date
of originalpurchase. Shouldany troubledevelopduringthis one-yearperiod, returnthe
COMPLETEtool,freight prepaid,
to one of Makita’s Factoryor authorizedServiceCenters. If
inspectionshows the trouble is causedby defectiveworkmanshipor material,Makitawill repair
(or at our option, replace)without charge.
ThisWarranty does not apply where:
repairshavebeenmadeor attemptedby others,
repairsare requiredbecauseof normalwear andtear,
the tool has beenabused,misusedor improperlymaintained,
alterationshavebeenmade to the tool.
INNO EVENTSHALLMAKITA BE LIABLEFOR ANY INDIRECT,INCIDENTAL OR
CONSEQUENTIAL DAMAGES FROM THE SALE OR USEOFTHE PRODUCT. THIS
DISCLAIMER APPLIES BOTH DURINGAND AFTER THETERMOFTHIS WARRANTY.
MAKITA DISCLAIMS LIABILITY
FOR ANY IMPLIEDWARRANTIES, INCLUDINGIMPLIED
WARRANTIES
OF “MERCHANTABILITY” AND “FITNESS FOR A SPECIFIC PURPOSE,”
ThisWarrantygivesyouspecificlegalrights,and you may alsohaveother rightswhich vary
from state to state. Some statesdo notallow the exclusionor limitationof incidentalor
consequentialdamages,
so the abovelimitationor exclusionmay not apply to you. Some States
do notallow limitationon how longan impliedwarranty lasts,
so the abovelimitationmay not
apply
to you.
AFTER THEONE-YEAR TERM OFTHISWARRANTY.
Makita Corporation of America
2650 Gainesville Hwy
Buford, GA 3051 8
A00256-9
*5-93
I MCA
Printedin USA.
1993-64