Makita 420S User manual

Dust Collector
Peak air flow
1.2 m3/min.
(42.4 cu.ft./min.)
INSTRUCTION MANUAL
Net
Sealed Recoverable
Hose Dimensions
suction capacity length
(L x W x H) weight
1,200 mm 147")
2,2 1.5 m 240 mm x 140 mm x 340 mm 2.9 kg
of water (5ft.) (9-7/16" x 5-1/2" x 13-3/8") (6.4 Ibs)

IMPORTANT
SAFETY INSTRUCTIONS
WARNING: When using dust collector, safety precautions
should always be followed to reduce the risk of fire, electric
shock, and personal injury, including the followings:
READ ALL INSTRUCTIONS BEFORE USING THIS DUST COLLECTOR.
1.
2.
3.
4.
5.
6.
7.
8.
9.
IO.
11.
PROPER GROUNDING. This toolshould begrounded while in usetoprotect
the operator fromelectric shock. Connect toa properly groundedoutlet only.
See “Grounding Instructions”.
GUARD AGAINST ELECTRIC SHOCK. Prevent body contact with grounded
surfaces. For example; pipes, radiators, ranges, refrigerator enclosures.
This dust collector is intended for commercial use.
Do not use the dust collector without the filter. Replace a damaged filter
immediately.
EXTENSIONCORDS: Useonly three-wire extension cords which havethree-
prong grounding-type plugs and three-pole receptacles which accept the
tool’s plug. For outdoor applications require an extension cord suitable for
outdoor use. Replace or repair damaged or worn cord immediately.
VOLTAGE WARNING: Beforeconnecting thedust collector toa powersource
(receptacle, outlet, etc.) be sure the voltage supplied is the same as that
specified onthe nameplateof the dust collector.A power sourcewithvoltage
greater than that specified for the dust collector can result in SERIOUS
INJURY tothe user
- as well as damage tothe dust collector. If indoubt,
DO NOT PLUG INTHE DUSTCOLLECTOR. Usingapowersource withvoltage
less than the nameplate rating is harmful to the motor.
Do not handle plug or dust collector with wet hands.
Always switch off and unplug the dust collector after each use and when
power fails.
Wear a dust mask during dusty operations and a special respirator when
vacuuming anything which may possibly endanger your breathing.
This is a dry pick-up backpack type dust collector for collecting dust ex-
hausted from various typesof electric power tools suchas rotary hammers
and sanders.
Do notattempt topick up liquids, wet dirt, flammable materi-
als, sparks, fire works, lighted cigarettes, hot ashes, sharp materials such
as razors, needles, broken glass or the like.
Do notvacuumtoxic, carcinogenic, combustible or other hazardous materi-
als such as asbestos, arsenic, barium, beryllium, lead, pesticides or other
health endangering materials.
12. NEVER USETHE DUSTCOLLECTOR INTHE VICINITY OF GASOLINE, GAS,
PAINT, ADHESIVES
OR OTHER HIGHLY EXPLOSIVE SUBSTANCES. The
2

switch emits sparks when turned ON and OFF, and so does the motor
commutator during operation. A dangerous explosion may result.
13.
Do not allow tobe used as a toy. Close attention is neccessary when used
by or near children.
14. Use only as described in this manual. Use only MAKITA's recommended
attachments.
15. Never use the dust collector
in the rain. When not in use, store the dust
collector indoors.
16. Do not use close toheat source (stoves, etc.). This cancause discoloration
and/or damage to the dust collector enclosures.
17. Do not block cooling vents or intake hole during operation. Do not attempt
to pick up large items which may clog the dust collector.
18. Keep proper footing and balance at all times.
19. Use extra care when cleaning on stairs.
20. DON'T ABUSE CORD. Never carry the dust collector by cord or yank it to
disconnect fromreceptacle. Keepcord away from heat, oil, and sharp edges.
Inspectcords periodicallyand
if damaged, haverepairedbyauthorizedservice
facility.
21. Do not fold, tug nor step on the hose.
22. Stopthe dust collector immediately if you noticepoor performance, unusual
23. DISCONNECT THE DUST COLLECTOR.When not in use, before servicing,
24. Usethe cleaning leverfrequently toclear the dust fromthe filter. Empty the
25. Clean and service the dust collector immediately after each use to keep it
26. Wear hearing protection during extended periods of operations.
27. Never place the hose over or near your mouth or nostrils.
28. REPLACEMENT PARTS. When servicing, useonly identicalreplacementparts.
29. Be kindtoyour dust collector. Rough handling can cause breakage of even
the most sturdily built dust collector.
30. Wipe the dust collector off with a soft cloth dampened in detergent solu-
tion. Never use thinner or benzine. This can cause discoloration and cracks
in the dust collector enclosures.
vibrations or anything abnormal during operation.
and when changing accessories.
contents of the dust compartment before full.
in tiptop operating condition.
SAVE THESE INSTRUCTIONS.
3

GROUNDING INSTRUCTIONS
This appliance must be grounded.If it should malfunction or breakdown, ground-
ing provides a path of least resistancefor electric current to reduce the risk
of
electric shock. This appliance is equipped with a cord having an equipment-
grounding conductor and grounding plug. The plug must be plugged into an
appropriate outlet that isproperly installed and grounded
in accordance withall
local codes and ordinances.
WARNIN G - Improper connection of the equipment-grounding
conductor can result in a risk of electric shock. Check with a qualified electri-
cian or service person if you are
in doubt as to whether the outlet is properly
grounded.
Do not modify the plug provided with the appliance - if it will not
fit the outlet, have a proper outlet installed by a qualified electrician.
This appliance isfor use on a nominal 120-voltcircuit, and has a grounded plug
that looks like the plug illustrated
in Fig. A. A temporary adapter that looks like
theadapter illustrated
in Fig. B and Cmay be usedtoconnectthisplugtoa 2-pole
receptacleas shown
in Fig. B if a properly grounded outlet is not available. The
temporary adapter should be usedonly
until a properly grounded outlet (Fig. A)
can be installed by a qualified electrician. The green colored rigidear, lug, or the
likeextendingfrom the adapter mustbeconnected toa permanent ground such
as a properly grounded outlet box cover. Whenever the adapter isused,
it must
be held
in place by a metal screw.
GROUNDING METHODS
SCREW
TAB FOR
GROUNDING SCREW
GROUNDED
---
OUTLET BOX
GROUNDING 1
PIN
Fig. A Fig. B Fig. C
SAVE THESE INSTRUCTIONS.
4

Attachingshoulder strap and waist belt
Attach the shoulder strap to the dust collector using holes in the top and side of the
dust collector
as shown in the figures below. Always secure the shoulder strap using the
buckles.
Shoulder ~~
strap
Attach the waist belt to the dust collector
using holes in the side
of the dust collector
as shown at right.
Hang the dust collector on your back and
adjust the shoulder strap length
so that you
can carry the dust collector on your back
comfortably.
installing hose
Hoses for this dust collector have a dif-
ferent
size cuff on each end. This dust
collector accepts either
of the two cuffs,
use them properly depending upon your
power tool or accessory to be connected.
5

Operation
1) When using without your power tool
connected
:
To start the dust collector, press the
"ON' side of the switch. Press the
"OFF" side of the switch to stop.
2 When using with your power tool con-
nected
:
This dust collector has an outlet for ac-
cepting the plug of your power tool.
When your power tool
is plugged into
this outlet and the dust collector
is
switched on, the dust collector will be
in
its "AUTO-ON" condition and will
start or stop automatically when you
turn your power tool on or off.
Switch
OUl
CAUTION :
0 Maximum input of power tools which can be connectedtothe dust collector is 12 A.
Check the power tool nameplatecarefully before you attempt toconnect the power
tool.
0 Always be sure that the dust collector and your power tool are switched off and un-
pluggedbefore connecting your power tool tothe dust collector.
Overload protector
The overload protector on the dust col-
lector automatically cuts out to stop the
dust collector and your power tool, when-
ever heavy work
is prolonged. If this
occurs, switch off both the dust collector
and your power tool, and wait
20 - 30
seconds before pressing the restart button
toresume operation.
CAUTION
:
Do not keepthe restart button pressed with tape, etc.
6

Cord hook
Use the convenient cord hook as shown at
right to prevent the power tool cord from
dangling around your legs. Your legs may
get tangled with the danglingcord, causing
severe injury toyou.
Cord hook
Cleaning lever
A clogged filter causes poor suction per-
formance and potential damage to the
motor. Occasionally use the cleaning lever
to clear the dust from the filter. If suction
performance becomes poor, move the
cleaning lever back and forth about ten
times after turning off the dust collector.
Suction performancewill recover.
Cleaninglever
CAUTION :
Never apply excessive pressure tothe cleaninglever. It may be broken.
Emptyingout dust and dirt
CAUTION :
Always switch off and unplug the dust collector before emptying out dust and dirt.
Move the cleaning lever back and forth
about ten times to clear the dust from the
filter. Unbuckle and open the dust com-
partment cover. Empty the contents of the
dust compartment. Always close the dust
compartment cover securely with
a little
click after emptying out dust and dirt.
Hook
This dust collector is equipped with a con-
venient large hook. Use
it for hangingthe
dust collector from
a beam, scaffold, etc.
However, never hang the dust collector in
slippery or insecure places. The dust col-
lector may fall. This will cause damage
to the dust collector and/or injury to you
or somebody else.
Dust commrt-’

MAINTENANCE
CAUTION :
Always be sure that the tool is switched off and unplugged beforeattempting to perform
inspectionor maintenance.
Cleaning filter
If suction performance will not recover enough even after you use the cleaning lever to
clear the dust from the filter and empty out the dust and dirt, proceed
as follows to
clean the filter.
Loosen the four screws which secure the
I
Hose the filter with clean water to remove
any dust from
it. Be careful not todamage
the filter with a brush, stick or the like.
Never perform this step near any source
of electricity.
Allow the filter to dry thoroughly in the
shade before reinstalling the filter in the
dust collector.
To install the filter, pull the
cleaning lever until
its end recedes as far
back
as the hole in the dust compartment
as shown at right. Then insertthe filter into
the dust compartment. Secure the filter
by tightening the four screws.
Cleaning lever
f
ng lever
I Filter
To maintain product SAFETY and RELIABILITY, repairs, carbon brush inspectionand
replacement, any other maintenance or adjustment should be performed by Makita
Authorized or Factory Service Centers, always using Makita replacement parts.
8

ACCESSORIES
CAUTION :
These accessories or attachments are recommended for use with your Makita tool specified in this
manual. The use
of any other accessories or attachments might present a risk of injury to persons. The
accessories
or attachments should be used only in the proper and intendedmanner.
0 Hose
Part No. 150269-7 (1.5 m : 4.9 ft)
Part No. 150327-9 (3
m: 9.8 ft)
0 Belt assembly
Part No. 122416-0
0 Straight pipe
Part No. 412040-0
0 Shelf brush
Part No. 410738-3
Nozzleassembly
Part No. 122234-6
Waist belt
Part No. 163335-1
0 Round brush
Part
No. 410539-9
(Use with rubber
sleeve 25-32)
0 Corner nozzle
Part No. 411891-8
9

The following dust extractor attachments, joints and sleeves are available for use with some types of
Makita rotary hammers, finishing sander and random orbit sander.
Description
Dustextractor attachment
Part
No. 192176-8
B
Rubber sleeve 18-21
Part
No. 422021-6
Applicable model
Rotary hammers
HR1821, HR2000
HR2511
Finishingsander
9036
Randomorbit sander
BO5000
NOTE :
Makita concrete planer Model PC1100, belt sander Model 9401 and wheel sander Model 9741 can be
connected directly to this dustcollector without any joints and sleeves.
10

Nov -20-'91 US
DUST COLLECTOR
Model 420s
Note: The switch and other part configurations
may differ from country to country.
11

/;:hi MODEL 4205 NO
USEO
30
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33
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36
37
30
39
40
41
42
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52
53
54
E01
E02
E03
T
MACHINE
~
1
4
1
1
1
1
1
1
1
1
1
1
1
1
1
6
1
1
1
1
1
1
1
1
1
1
1
i1 i
10
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14.
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41 1
81
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4
1
1
1
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1
4
2
1
2
1
1
2
1
2
2
1
1
1
2
71
DESCRIPTION ITEM
NO.
NO. USEO
Nov-20-'91 US
DESCRIPTION
Cord
Cord Guard
Tapping screw 4x18
Stram Relief
Strain Relief
Housing Sei IWilh Item 461
Name Plate
Hook
Main
Filter
Tapping screw 4x10
Under Cover
Support Ring
Fan Cover
Tapping
Screw BT 4x50
Rubber Pm 4
Receptacle
Carbon Brush
Buckle
Filler
Innlet
Packing
B
Rubber Lock
Packing A
Sealing Block
Tapping screw 4x 16
Beater Shaft
Spring
Pin 2 5- 16
Beater
Pan Heed Screw M3x6 IWith Wsshsrl
SUPpOrl cover
Taoping
Screw BT 4x20
Terminal Base Complete
Ball Bearing 607110
Flat Washer 7
insulation Washer
ARMATURE ASSEMBLY
lW8th Item 33 371
Ball Bearing 608DDW
Field
Bracket
Return Vane
Flange
Fan 94
Washer 6
Hex Nut M6
Tapping
Screw BT 4x30
Housing Set IWilh Item 61
Switch
CO"t,Ol Clrcull
Receptacle Sleeve
Switch
Switch Lever
Cap
Consent
Terminal Block
Current
Relay
Holder
Note: The Switch and other part specificanons may differ from country 10 country
I
MAKKA LIMED ONE YEAR WARRANTY
warranty Policy
Every Makita tool is thorou ly mspected and tested before leaving the factory. It is warranted to
be free of defects from workishipand materials for the period of
ONE YEAR from the date of
original purchase. Should any trouble develop during
this one-year period, return the COMPLETE
tool, freight prepaid, to one of Makita's Factory or Authorized SeMce Centers. If inspectionshows
the trouble
is caused by defective workmanship or material, Makita will repair (or at our option,
replace) without charge.
ThisWarranty doesnot apply where:
repairs have been made or attempted by others:
repairs are required because of normal wear and tear:
The tool has been abused, misused or improperlymaintained;
alterationshave been made to the tool.
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT, INCIDENTAL OR CON-
SEQUENTIAL DAMAGES FROM THE SALEOR USEOFTHE PRODUCT. THIS DISCLAIMER
APPLIESBOTH DURING AND AFTER THETERM OF THIS WARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED
WARRANTIES OF "MERCHANTABILITY" AND "FITNESS FOR A SPECIFIC PURPOSE,"
AFTER THEONE-YEAR TERM OFTHISWARRANTY.
This Warranty gives you specific legal rights, and you may also have other rights which vary from
state to state. Some states do not allow the exclusion or limitation of incidentalor consequential
damages,
so the above limitation or exclusion may not apply to you. Some states do not allow
limitation
on how long an implied warranty lasts, so the above limitation may not apply to you.
Makita Corporation
3-11 -8, Sumiyoshi-cho,
Anjo, Aichi
446 Japan
883782 - 069
PRINTED IN JAPAN
1994-2-N