Central Pneumatic 46446 User manual

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ASSEMBLY AND OPERATING INSTRUCTIONS
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit ourWeb site at http://www.harborfreight.com
Copyright©2005 by Harbor Freight Tools®. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
withouttheexpress written consent of Harbor FreightTools.
For technical questions and replacement parts, please call 1-800-444-3353
46446
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Specifications
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Included Accessories
Accessory Specifications:
When unpacking, check to make sure the listed parts are included. If any parts
are missing or broken, please call Harbor FreightTools at the number on the cover
of this manual.
Save This Manual
You will need the manual for the safety warnings and precautions, assembly
instructions, operating and maintenance procedures, parts list and diagram. Keep
your invoice with this manual. Write the invoice number on the inside of the front
cover. Keep the manual and invoice in a safe and dry place for future reference.
Safety Warnings and Precautions
WARNING:Whenusing tool,basicsafetyprecautions shouldalwaysbe followed
to reduce the risk of personal injury and damage to equipment.
Read all instructions before using these tools!
1. Keep work area clean. Cluttered areas invite injuries.
2. Observe work area conditions. Do not use machines or power tools in
damp or wet locations. Don’t expose to rain. Keep work area well lit. Do not
use electrically powered tools in the presence of flammable gases or liquids.
3. Keep children away. Children must never be allowed in the work area. Do
not let them handle machines, tools, or extension cords.
4. Store idle equipment. When not in use, tools must be stored in a dry
location to inhibit rust. Always lock up tools and keep out of reach of children.
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5. Use the right tool for the job.Do not attempt to force a small tool or
attachment to do the work of a larger industrial tool. There are certain
applications for which this tool was designed. It will do the job better
and more safely at the rate for which it was intended. Do not modify this
tool and do not use this tool for a purpose for which it was not intended.
6. Dress properly while working. Protect your skin from accidental abrasion
burnsbywearing tough long sleeves and safety gloves. Donotwearloose
clothing or jewelry as they can be caught in moving parts. Protective,
electricallynon-conductive clothes andnon-skidfootwearare recommended
whenworking. Wearrestrictivehair covering to contain long hair.
7. Use eye and ear protection. Always wear ANSI approved impact safety
gogglesandfullface shield when using this tool. WearanANSIapproveddust
maskorrespiratorwhenworkingaroundmetal,wood,andchemicaldustsandmists.
8. Do not overreach. Keep proper footing and balance at all times. Do not
reachoveror across running machines.
9. Maintain tools with care. Keep tools clean and in good condition for better
andsafer performance. Follow instructionsforlubricatingand changing
accessories.Inspecttoolfittingsandhosesperiodicallyand,ifdamaged,have
them repaired by an authorized technician. The handles must be kept clean,
dry, and free from oil and grease at all times.
10. Disconnect power.Disconnect from air pressure source when not in use.
11. Remove adjusting keys and wrenches. Check that keys and adjusting
wrenchesareremovedfromthetoolormachineworksurfacebeforeconnectingit.
12. Avoid unintentional starting. Be sure the throttle lever is in the Off position
when not in use and before attaching to pressure source. Do not carry any
tool with your hand on the throttle lever, whether it is attached or not.
Disconnect the air hose from the tool when not in use.
13. Stay alert. Watch what you are doing, use common sense. Do not operate
any tool when you are tired.
14. Check for damaged parts. Before using any tool, any part that appears
damaged should be carefully checked to determine that it will operate
properly and perform its intended function.Check for alignment and binding
of moving parts; any broken parts or mounting fixtures; and any other
condition that may affect proper operation.Any part that is damaged should
be properly repaired or replaced by a qualified technician.Do not use the tool
ifthethrottleleverdoes not function properly.
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15. Guard against electric shock when working on electrical equipment,
such as your air compressor.Prevent body contact with grounded surfaces
suchaspipes,radiators,ranges,and refrigerator enclosures.
16. Replacement parts and accessories. Whenservicing, use onlyidentical
replacement parts.Use of any other parts will void the warranty. Only use
accessoriesintendedforusewith this tool. Approved accessories are
availablefromHarborFreightTools.
17. Do not operate tool if under the influence of alcohol or drugs. Read
warninglabelsonprescriptions to determine if your judgment or reflexes are
impaired while taking drugs. If there is any doubt, do not operate the tool.
18. Use proper size and type air pressure line and fittings. The recommended
airlineshoulddelivernomorethan90psi.
Recommended air inlet size is 1/4”- 18 NPT, using a 3/8” air hose.
19. Maintenance. For your safety, service and maintenance should be performed
regularlybyaqualified technician.
20. You should maintain a proper regulator and moisture trap in your air
line at all times.
21. Do not increase the air pressure to the tool beyond 90 PSI. This may
damagethe tool, or cause personal injury.
WARNING: Some dust created by power sanding,sawing,grinding,drilling,
and other construction activities, contain chemicals known [to the State of
California] to cause cancer,birth defects or other reproductive harm. Some
examples of these chemicals are:
* Lead from lead-based paints
* Crystalline silica from bricks and cement or other masonry products
* Arsenic and chromium from chemically treated lumber
(California Health & Safety Code 25249.5, et seq. )
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Operation
1. Install one of the Standard 1/4” Male Fittings to the Air Inlet of each tool. First
wrapthethreadedportion of the Fitting with pipe thread seal tape before
threading it into the Air Inlet.Tighten securely.
2. Attach a standard quick connector (not included) to your air pressure source
hose.Then attach the air hose to theTool.
NOTE: If you are not using an automatic in-line oiler, add a few drops of pneumatic
oil to the Air Inlet before attaching the air hose. Add a few more drops of oil
afterevery hour of continualuse.
3. Set the air pressure regulator at 90 psi.
WARNING:DO NOT INCREASETHE AIR PRESSURE to the tool beyond 90
PSI.This may damage the tool, or cause personal injury.
4. Check the air line and its connections for air leaks. Make note of these, and
repairthembeforeusingthistool.
CAUTION: Turnoffyour air compressor and disconnect theairpressurehose
beforechangingattachmentsormakinganyadjustmentstothesetools. Severe
injuryorpropertydamagemay otherwise result.
Direction Controller (25)
Pneumatic
Tool
NOTE:Werecommend the use of in-line filter, regulator, and oilerinany
compressedairsystem using tools purchased from Harbor FreightTools.Please
refer to the schematic below for a suggested system set up.These components
are not included in this kit, but are available from Harbor FreightTools.
Note:Performanceofthesetoolsmayvarydependingonvariationsinlocalairpressure.
Warning:The warnings,cautions,and instructions discussed in this instruction
manual cannot cover all possible conditions and situations that may occur. It
mustbe understoodby theoperator thatcommon senseand cautionare factors
which cannot be built into this product, but must be supplied by the operator.
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1/2” Air Impact Wrench
OPERATION
NOTE: Part numbers in this section refer to the Parts List on page 8, and Assembly
Drawing on page 9.
Your Impact Wrench
features an Air Regulator (37),
allowingyou to varytheamount of
torque exerted on the nut or bolt
you are working on. Setting “1” is
the lowest setting, and is
recommendedforsmallernutsand
bolts. Setting “4” is the highest
setting and provides the most
torqueand speed.
Loosening
1. Attach the correct size socket to the Anvil (8).
2. Set the compressor’s pressure regulator to 90 PSI. Do not set the outlet
regulatorof the compressor above90PSI.
3. Connect the Impact Wrench to the air compressor’s hose. If leaking is
detected,disconnecttheairhoseandrepairbefore use.
4. Place the socket over the nut to loosen.
5. Pressthe ReverseValve (44) in from the area above theTrigger (29) so that
the ReverseValve protrudes out the back of the Housing.Grip the Impact
Wrench firmly. Press the Trigger to start the Impact Wrench.
Caution: Before starting work, check the rating of the nut or bolt to be sure
it can withstand the working torque of the Impact Wrench.
6. If the Impact Wrench cannot loosen the nut, DO NOT raise the outlet pressure
oftheaircompressor.
7. If the Impact Wrench’s Air Regulator is set on a low setting, you may raise the
setting and try again. If the Impact Wrench’s Air Regulator is already set on
the “4” setting, do not continue attempts to loosen the nut with the Impact
Wrench. Use other appropriate tools and methods to loosen the nut.
8. Whenthenutisremoved,stoptheImpactWrenchbyreleasingtheTriggerand
removetheImpactWrenchfromthenut. Removethenutfromthesocketifneeded.
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Tightening
The working torque of the Impact Wrench is 230 foot/lbs. Make sure the nut or
bolt you are using the Impact Wrench to tighten can withstand the rated torque.
1. Tighten the nut on as far as you can by hand.
2. Pressthe ReverseValve forward so it protrudes out the front of the Housing.
Place the socket on the nut. Press the Trigger to start the Impact Wrench.
3. If the Impact Wrench stalls while tightening, DO NOT raise the outlet pressure
oftheair compressor above 90 PSI.
4. If the Impact Wrench’s Air Regulator is set on a low setting, it may be raised
before you try again. If the nut will not tighten at the maximum setting, do not
continue attempts to tighten the nut. Use other appropriate tools and
methods to tighten the nut.
5. When the nut has been tightened, remove the Impact Wrench and socket. Do
notovertighten.
6. If available, check the recommended torque specifications for the nut. You
should use a torque wrench to torque the nut after using the Impact Wrench.
1/2” Air Impact Wrench Parts List
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1/2” Air Impact Wrench Assembly Diagram
NOTE: Some parts are listed and shown forillustrationpurposes only and are not
availableindividuallyasreplacement parts. Some parts are available only as partof
an assembly.
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3/8” Reversible Air Drill
OPERATION
NOTE: Part numbers in this section refer to the Parts List on page 11 and the
Assembly Drawing on page 12.
1. Settheairpressureregulatorat
90 psi.
WARNING: Do not exceed the
recommended pressure of 90 psi.
Damage to your tool, and possible
personal injury may result.
2. Check the air line and its
connections for air leaks. Make
note of these, and repair them before using this tool.
NOTE: Turnoffyour air compressor and disconnecttheairpressure hose before
changing bits or making any adjustments to this tool. Severe injury or property
damagemayotherwise result.
WARNING:Thistoolgeneratesconsiderable
torque when in use. Always hold the tool with
bothhandswhenusing,andbraceyourselfto
resistthe torquewhichwill bedeliveredto the
workpiece.
3.Select the appropriate sizedrillbit(not
included)foryourneeds.TheChuckmaybe
openedand closed using theChuckKey (see
photo).TurntheChuckKeycounterclockwise
to open, and clockwise to close the Chuck.
4.Insert the base of the drill bit into the
Chuck (16a). With the bit in place, tighten
the Chuck with the Chuck Key until the bit is securely held.
5. Move the Direction Switch (30a) to the LEFT to drill clockwise, move the
DirectionSwitch(30a)totheRIGHTtodrillcounterclockwise.NOTE: Inmost
cases, drill bits are designed to bore into the work material turning clockwise,
andtoreverseoutoftheworkmaterialbyturning counterclockwise.
6. Place the point of the drill bit at the spot you wish to drill. When it is safe to do
so, squeeze the Trigger (24a). The Drill will begin to operate, and the drill bit
will begin to drill into the work material. Drill until you have reached the desired
depth.ReleasetheTrigger (24a) to cease operation of the drill.
Using the Chuck Key
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WARNING:Thisdrilloperatesatnon-variablespeed.Thatmeans once theTrigger
is squeezed it will begin to operate at full speed. When the trigger is released it will
stop operating. Be prepared for the drill to operate at full speed immediately
when the trigger is squeezed.
7. After drilling the hole, in most cases, you will be able to simply retract the drill
bit from the hole. If the bit can not be easily pulled out of the hole, move the
DirectionSwitch(30a)to the RIGHT to reverse direction of the drill.Squeeze
the Trigger (24a) to operate the drill, and pull the bit out of the hole as it
rotatescounterclockwise.
NOTE:To extend the life of your tool, wait for the drill to stop rotating before moving
the Direction Switch to reverse direction. Operating the Direction Switch while
the drill is still turning may cause damage to the tool.
8. When you are done, disconnect the Drill from the air supply, and store it
properly.
3/8” Reversible Air Drill Parts List
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NOTE: When ordering parts for this drill, always use the “a” suffix, for example, Chuck Screw is part #17a.
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3/8” Reversible Air Drill Assembly Drawing
PLEASE READTHE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE
BUYERTHAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR
THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT,
THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS
AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND
LICENSED TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK
AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT
OR REPLACEMENT PARTSTHERETO, OR ARISING OUT OF HIS OR HER INSTALLATION
OF REPLACEMENT PARTS THERETO.
NOTE: When ordering parts for this drill, always use the “a” suffix, for example, Chuck Screw is part #17a.
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1/4” Air Die Grinder
OPERATION
NOTE:Partnumbers in this
section refer to the Parts
List on page 14 and the
Assembly Drawing on
page 15.
CAUTION: Firmly clamp
or otherwise mount the
workpiece to your
workbench or other fixed
objectpriortoworkingon
it.This will allow you to use both hands on this tool during operation.
WARNING: AlwayswearafullfacemaskandrespiratorwhenusingtheAirDieGrinder.
Loose particles will be thrown off which can cause injury to the face or respiratory tract.
1. Usethetwo open end spanners (provided) to loosen theColletNut(25b).
2. Select the correct diameter Collet for the grinding bit you will use. This kit
includes 1/4” and 1/8” Collets, to fit same sized grinding bits. Insert the Collet
(26b)intothe Spindle (27b).
3. Insert the shank of the selected grinding bit fully into the Collet (26b). Then,
using both open end Spanners, firmly retighten the Collet Nut (25b) to lock
both the Collet and Grinding Bit in place.
4. ConnecttheAirSupplyHose(notincluded)tothequickconnector(notincluded)onthe
DieGrinder.Turnontheaircompressor(notincluded)andsetitsregulatorto90PSI.
5. GriptheDieGrinderwith both hands.
6. ReleasetheSafety(8b)and slowly apply hand pressure to the Trigger (4b).
The tool will begin to operate. Notice that you can control the speed of the tool
byvaryingthe amount of handpressureonthe Trigger (4b).
7. With a firm grip on the Die Grinder, lightly apply the grinding bit to the
workpiece.Slowlyandsteadilymovethegrindingbitaround on the work piece
as required to complete the task.
8. Whenthe work is finished, remove the tool from the workpiece, and release
yourpressureon the Trigger (4b). The tool will stopoperating.
9. Turn off the air compressor and disconnect the tool from the air supply hose.
ReleasetheSafety(8b) and press the Trigger (4b) to release any trapped air
fromthetool.
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1/4” Air Die Grinder Parts List
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b11gniR"O"1b82paCgnisuoH1
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NOTE: When ordering parts for this grinder, always use the “b” suffix, for example,
Housing is part #17b.
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1/4” Air Die Grinder Assembly Diagram
NOTE: When ordering parts for this grinder, always use the “b” suffix, for example,
Housing is part #17b
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6” Dual Action Air Sander
OPERATION
NOTE: Part numbers in this section refer
to the Parts List on page18 and the
Assembly Drawing on page 19.
Attaching or Removing the Pad
1. Disconnectthe tool from its power
sourcebeforeattachingorremoving
thePad (44c).
2. Rest the tool on a flat surface.
Thread the Pad into the Drive
Spindle (38c) until it is tight.
3. Placea6”diameterpadof adhesive backed sandpaper (not included) onto the
pad. Press it firmly into place.
4. To remove the sandpaper, peel it from the Pad (44c).You may need to use a
scraping tool to completely remove it.
5. To remove the Pad from the tool, place the Spindle Lock (41c) vertical on the
grooveoftheDriveSpindle(38c)toholditinplace.RotatethePad(44c)
counterclockwisetoremoveit from the tool.
To Adjust the Sander for Circular or Orbital Motion
1. Thesander may be adjustedforcircular or orbital motion.Incircular motion, the
sanding pad spins around its center.In orbital motion, in addition to spinning
around its center, the entire pad rotates around the axis of the tool spindle.
2. To adjust the sander for
circular motion, position the
roundedgeoftheOrbitalHub
(41c)against theroundedge
ofthe DriveSpindle(38c). To
adjustthe Sander to movein
anorbitalmotion, positionthe
flat edge of the Orbital Hub
(41c)against theroundedge
of the Drive Spindle (38c).
Please see the photo.
(41c)
(38c)
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Using the Sander
1. Besureallsafetyprecautions are being followed.
2. Tighten workpieces to your workbench or other fixed base so that both of your
handsarefreeto hold the sander.
3. Set the air compressor regulator to 90 psi. Connect the Air Sander to the air
compressor hose at the Air Inlet (2c). Use the Air Pressure Regulator (19c) to
adjusttheairpressureasrequired.
4. Check to be sure all attachments are secure before turning on the tool.
5. Gripthehandlewithonehand,andtheHousing(1c)withtheother.Depressthe
Trigger(16c)toturnthetoolon.Allowthemotortoreachitsfull speedbefore
sanding.Besurethetoolisoperatingproperly,andrunningsmoothlybefore
proceeding.
6. Apply the sanding pad to the work material at a slight angle. Move the sanding
padaroundthesurfaceoftheworkmaterialasneeded.Donotallowthepad
to remain in one place as this may burn the work material. If the sander slows
down appreciably, you are applying too much pressure.Always keep your
bodyandclothing away from the moving sandingpad.
7. Whenyouaredonesanding,removethetoolfromtheworkmaterial,andrelease
pressurefrom theTrigger(16c). Allowthe tooltocome toacomplete stopbefore
setting it down. Disconnect the air pressure hose when the tool is not in use.
Some Tips About Sand Paper
1. When sanding, start with a relatively coarse grit paper, and work up to a finer
grit to complete the job. The grit selected depends on the job at hand. With
bare metal finishing, you may start at 100 and work up to 600 grit. With paint
finishing, you may start with 400 and work up to 2000 grit, for example.Your
choiceofgritdependsonthejobandyourpreferredmethodofworking.
NOTE:Harbor FreightTools cannot be responsible for damage to
property due to incorrect selection of sanding disc or grit size. Always
practice on scrap material before using the tool on your workpiece.
2. Sand paper works by moving a large number of sand grains in an arbitrary
patternover the work surface. Because of the Backing Pad,these willproduce
a relatively uniform series of hills and valleys at the grain size of the grit used.
Using the first grit selected, sand out any scratches or blemishes in the finish.
You want to produce an even finish at the grain size of the grit being used.
Whenalloutstandingmarksorblemishesare removed, move to the next finer
grit. Each successive grit is used to lower the “hills” of the previous grit to the
grain size of the new, finer grit.Continue this process, using successively finer
grits until the desired finish is achieved.
CAUTION: Always wear ANSI approved safety goggles and full face shield, with
dustmaskor respirator while sanding.
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SKU 46446 For technical questions and replacement parts, please call 1-800-444-3353 Page 18
6” Dual Action Air SanderParts List
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NOTE: When ordering parts for this sander, always use the “c” suffix, for example,
Trigger is part #16c.
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SKU 46446 For technical questions and replacement parts, please call 1-800-444-3353 Page 19
6” Dual Action Air Sander Assembly Diagram
NOTE: When ordering parts for this sander, always use the “c” suffix, for example,
Trigger is part #16c.
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SKU 46446 For technical questions and replacement parts, please call 1-800-444-3353 Page 20
Air Hammer
Air Hammer Specific SafetyWarnings.
NOTE: Part numbers in this section refer
to the Parts List and Assembly Drawing
on page 22.
1. Repetitive motions or exposure to
vibration may be harmful to your
handsandarms.
2. Whenwearingglovestooperatethe
Air Hammer, make sure that the
gloves do not interfere with operating the Trigger (16d). Test your gloves with the
Trigger(16d)beforeattachingtheunittoanairsource.
3. Never start the tool unless you have a firm grip with both hands and you are
positionedatyourworkpiece or area.
4. Before using the Air Hammer,knowwhat is directly underneath the work area
orworkpiece. The Air Hammer can quickly penetrate material. Ifworking
directly on the ground, make sure you are not directly above shallow cables,
lines, or pipes.
5. Keep your limbs and body clear of the Air Hammer. If a chisel or bit breaks
off, the tool tends to surge forward suddenly. Make sure the immediate area
is clear of other people or animals. Spectators must stay at a safe distance.
6. Neverpointthetoolortheairhose(not included) at anyone.
7. Keepyourfingeraway from the Trigger (16d) until you are ready to work.
Warning!! Any spectators in the area will need eye and ear protection.
Beware of flying chips of wood, concrete, metal, or any other material
being hammered.
OPERATION
Warning: Always disconnect the tool from the air source before examining
or changing bits.
1. Select the appropriatechisel/bit. UnscrewtheRetainerSpring(15d)and
insert the shank of the chisel/bit. Screw the Retainer Spring (15d) back onto
the Cylinder (14d). Holding the Air Chisel firmly, pull the chisel/bit hard to
make sure it locked into place.
Note: Before connecting the air supply, make sure you are wearing safety goggles
and a full face mask, ear protection, and steel toe shoes.
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