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Harbor Freight Tools 41921 User's Manual

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1. If the Motor runs roughly or slowly 1 Check for debris in the cutting assembly or in the chains or belts 2 Inspect the carbon brushes replace if necessary 3 Verify that the power source supplies the correct Voltage and Amperage If the Planer cuts unevenly poorly or produces a rough or chipped finish Inspect the Knife Blades to be sure they are properly installed and adjusted 1 2 Remove the Knife Blades and have them sharpened by a sharpening service 3 Review the suggestions for selecting a workpiece and adjusting the depth of cut 4 Cut only with the wood grain STANDARD LINE Changing the Carbon Brushes l Check carbon brushes every 10 15 hours of opera tion 2 Brushes are accessed by turning the machine on its side Motor is on machine s underside The brush holders are on the sides of the motor Remove brush holders by turning them with a coin 3 Each brush has a line marked on its side When the brush has worn to the line or if it is cracked or chipped replace both carbon brushes Figure 12 Checking and Replacing the Carbon Brushes SKU 41921 For technical questions please call 1 800 444 3353 Page 10 41921 10 AUTO PLANER PARTS LIST MAIN UNIT Please refer to Parts Diagram on Page 12 Description _ __ Description Q ty 133 Cap Screw m6 x 12 134 Base Bracket 135 136 137 138 139 140 4 4 1 141 1 142 2 143 144 145 i Screw m6 x 10 146
2. 100 Feet 150 Feet a 7 1 12 0 12 1 16 0 ee gt 16 1 20 0 on J wo f oo ee i o Based on limiting the line voltage drop to five volts at 150 of the rated amperes SKU 41921 For technical questions please call 1 800 444 3353 Page 5 Completing Assembly WARNING Unplug the machine before any assembly or adjustment Attaching the Carrying Handles 1 Locate the two carrying handles 349 and their hardware Screws 327 2 Attach the handles to the top of the machine firmly using the screws Installing the table extensions 1 With the roller up place each table extension bracket 157 onto the table 125 and attach using two cap screws 164 Be sure the bracket assemblies are firmly attached but are able to rotate up for storage 2 Adjust each table extension so that a workpiece supported by the roller is level and in the same plane with the table Do this by adjusting the cap screws 1 in or out as required See Figure 2 Check the adjustment by placing a straight edge at least 24 long through the machine and resting on the table and both extension rollers When the extension is properly adjusted lock the cap screws in place Roller with the lock nuts 2 Table l 2 Figure 2 Table Extension Adjustment Straight Edge Setting the Cutting Depth 1 Place the Table Adjustment Handle 150 over the square ended Control Screw 130 which pro trudes through the top of the machine 2 Turn the Table
3. CENTRAL MACHINERY 10 AUTO PLANER ASSEMBLY AND OPERATION INSTRUCTIONS i v3 HARBOR FREIGH Ss TOOLS 3491 Mission Oaks Blvd Camarillo CA 9301 1 Visit our website at http Awww harborfreight com TO PREVENT SERIOUS INJURY READ AND UNDERSTAND ALL WARNINGS AND INSTRUCTIONS BEFORE USE Copyright 1999 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 without the express written consent of Harbor Freight Tools For technical questions or replacement parts please call 1 800 444 3353 SPECIFICATIONS Overall Dimensions 22 x 16 x 23 1 4 Cutting Capacity 12 5 8 L x 10 1 4 W Thickness of stock 1 4 5 Included Accessories Features Adjustable extensions to support long workpieces Anti kickback safety devices prevent workpieces from being ejected toward the operator Two bi metallic blades are adjustable and replaceable for powerful cutting performance Compact and lightweight machine can plane workpieces up to 10 wide and 5 thick Positive adjusting table with crank handle and easy to read thickness gauge ON OFF switch has removable safety lock device to prevent unauthorized use of the machine MOP p ee Integral circuit breaker protects the motor from burn out Save this manual You will need the manual for the safety warnings and cautions assembly instructions operating procedures
4. Allow the planer to spin up to full speed Position the workpiece on the extension roller and table so that it is level If you are planing a long board you may need support tables on both sides of the planer to keep the workpiece level as its full length passes through the planer Feed the workpiece into the planer no faster than the stated feed rate 23 feet per minute The planer should maintain its speed If the planer slows down noticeably reduce the feed rate If the planer still bogs down remove the workpiece and adjust for a shallower cut Use a wooden pusher tool to push the board through the planer You can also grip the finished portion of the workpiece and pull it out of the planer Fig 5 DO NOT Place Your Hand Inside the Extension Rollers SKU 41921 For technical questions please call 1 800 444 3353 Page 7 SUGGESTIONS FOR BETTER PLANING This tool is ideal for finishing wood boards You can use it to level or remove veneers You can level warped boards You can convert rough boards into finished wood You can shape boards to a desired size Select your wood with care 1 Be sure your wood is dry and properly cured Green or wet wood will continue to shrink and may warp after planing 2 Do not use splintered wood or wood which may splinter while being worked Some species such as Eucalyptus or Bamboo are prone to splintering and are not suitable for planing 3 Do not use any boards with loose knots
5. In case of entanglement press the OFF switch immediately People with pacemakers should consult their physician s before use Electromagnetic fields in close proximity to heart pacemaker could cause pacemaker interference or pacemaker failure Some dust created by power sanding sawing grinding drilling and other construction activi ties contains 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 Your risk from these exposures varies depending on how often you do this type of work To reduce your exposure to these chemicals work in a well ventilated area and work with approved safety equipment such as those dust masks that are specially designed to filter out microscopic particles California Health amp Safety Code 25249 5 et seq NOTICE No list of warnings can be all inclusive The operator must supply common sense and operate this tool in a safe manner UNPACKING Remove protective crating and materials carefully In the event of damage in transit contact Harbor Freight Tools Be sure you have all small parts accounted for before discarding packing materi als Check to be sure all parts are present In addition to the planer you should receive the accessories noted on page 2 You sho
6. Never operate an electrical tool in wet conditions Never operate a tool with an improper electrical cord or extension cord Never operate an electrical tool unless it is plugged into a properly grounded outlet which supplies 110 120 Volts at 60 Hz We recommend you use a circuit which is protected by an ap propriate circuit breaker Ejected Material Use safe practices to avoid injury from ejected material Because the planer turns at high speed there is a danger of being injured by materials that may be ejected Always wear ANSI certified eye protection Always stand to one side of the line in which the materials are being inserted or extruded to avoid being hit if particles are ejected Never allow bystanders to be in the proximity of the Planer while in operation Jamming Avoid causing the planer to bog down or jam by avoiding the following situations Do not attempt to plane more than 1 8 at a time or less if the wood is very hard Do not attempt to feed more than the stated feed rate or less if the wood is very hard Be sure your knife blades are kept sharp Check all workpieces for knots and foreign objects before planing If the workpiece jams it is likely the circuit breaker will break to protect the motor Entanglement Use extreme caution to prevent loose materials from being caught in the machine Never operate this Planer with loose clothing long hair jewelry or other items which may become caught in the blades or workpieces
7. left unattached the machine may move along the work surface possibly falling over ejecting the work piece or creating other hazards which can cause serious injury Electrical Power This machine requires a 110 120V 60 Hz grounded power supply This power is available in most common household or workshop outlets in the United States Please observe the following safety precautions Note Voltage variations of more than or 10 from the specification will result in noticeable reduction of service and may cause damage to the motor 1 Route the power cord in a way that avoids damage to the cord from other tools or machinery and isolates the cord from exposure to wet or corrosive conditions 2 Avoid routing cord along the floor walkways or halls where it may cause a trip hazard Be sure the outlet is grounded and protected with an appropriate circuit breaker Check with a qualified electrician if you have any doubts or concerns about your electrical service 4 If you will use an extension cord be sure to use a 3 prong grounded cord Preferably the cord will be UL listed Know that long extension cords cause a noticeable power drop It is necessary to use cords of the proper gauge to avoid excessive resistance or power drop within the cord Please comply with the following table RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS 120 OR 240 VOLT NAMEPLATE AMPERES EXTENSION CORD LENGTH at full load 25 Feet 50 Feet 75 Feet
8. maintenance procedures trouble shooting parts list and diagram Keep your invoice with this manual Write the invoice number on the inside of the front cover Keep both this manual and your invoice in a safe dry place for future reference NOTICE The Warnings Cautions and Instructions discussed in this instruction manual cannot cover all possible conditions and situations that may occur It must be understood by the operator that common sense and caution are factors which cannot be built into this product but must be supplied by the operator SAFETY WARNING amp CAUTIONS READ ALL INSTRUCTIONS BEFORE USING THIS TOOL 1 Warning Make sure blade is fastened and tightened down securely SKU 41921 For technical questions please call 1 800 444 3353 Page 2 10 11 12 13 14 15 16 17 18 Keep work area clean Cluttered areas invite injuries Observe work area conditions Do not use tools in damp wet or poorly lit locations Don t ex pose to rain Keep work area well lit Do not use electrically powered equipment in the presence of flammable gases or liquids Keep children away Children must never be allowed in the work area Do not let them handle machines tools or equipment Store idle equipment When not in use tools must be locked up in a dry location to inhibit rust Always lock up tools and keep out of reach of children Do not force the tool It will do the job better and more saf
9. apply a light grease to the bearings at each end of the cutter head The motor bearings are sealed and do not require additional lubrication c Remove the panels on both sides of the planer and apply a light grease to the chains d Apply a light coat of grease to the chain on the underside of the machine Keep the motor and electrical controls dry and clean Keep the motor free of chips sawdust grease and debris ADJUSTING THE CUTTING KNIVES WARNING Be sure the machine is turned OFF and UNPLUGGED before attempting any adjustments The Cutter Head assembly can be accessed by removing the cover from the top of the machine l Note Remove the top cover 326 from the machine by removing the bolts securing it Please refer to Figure 11 when checking knife ad P justment Position the knife Gauge E onthe cutter agg p head and knife blade as shown The gauge must erat ceil contact the knife blade and the cutter head at all Figure 10 Checking the Knife Blade three points shown The blade is adjusted too low if there is a visible space between the blade edge and the gauge The knife blade is too high when the gauge rocks from side to side on the cutter head when contacting the knife blade To adjust the blade setting loosen the locking nuts A just enough to allow the blade C to move against the Lock Bar B To raise the knife blade turn adjustment screw D counter i clockwise To lower the knife blade tu
10. 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY NETHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT 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 A ND 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 PARTS THERETO OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO SKU 41921 For technical questions please call 1 800 444 3353 Page 11 41921 10 AUTO PLANER PARTS DIAGRAM MAIN UNIT Please refer to Parts List on Page 11 SKU 41921 For technical questions please call 1 800 444 3353 Page 12 41921 10 AUTO PLANER ADDITIONAL PARTS LIST Please refer to Parts Diagrams on Page 14 and 15 Part Description Q ty Motor Assembly 201 Motor Housing M 202 Stator ooo o 203 washer m5 M 204 FanCasing Moo 205 Screw m5x85 __ J2 206 __ Bearing 620177 _ _ _ M 207 __ Silicone Steel Sheet H 208 __ Bearing 602977 _ _ _ M 209 _ Motor Pulley Mo
11. Adjustment Handle to raise or lower the Table to the desired cutting thickness 3 Read the cutting depth on the scale on the right of the machine 4 Remove the Table Adjustment Handle before operating Operating the Power Switch The power switch is on the lower right front of the machine 2 The Safety Switch Cover must be in place to operate the Power Switch You can remove the Cover and store it in a safe place n to prevent unauthorized use M E AA 3 Press the Switch UP to turn to turn it OFF the machine ON and DOWN o ANER Integral Circuit Breaker iP The circuit breaker trips if the amp draw exceeds 10 A pre venting motor burn out if the planer jams or if there is a power surge 2 To reset correct the error condition and press the button E i pach Fig 4 Power Switch and Fig 3 Crank and Integral Circuit Breaker Cutting Depth Scale SKU 41921 For technical questions please call 1 800 444 3353 Page 6 SAFETY CHECK PRIOR TO OPERATION WARNING Unplug the machine and turn the power switch OFF before inspecting the machine 1 2 3 Check to be sure all parts and fasteners are properly attached and tight Be sure the blade is properly installed and adjusted Check the operation of the Table Adjustment Handle 150 One rotation of the handle will raise or lower the table by 2mm 0 0787 Plug in the machine to prepare to check the motor and blade function 1 Turn ON the machine
12. by moving the switch up Note The safety switch cover must be in place for the switch to operate Do not insert any work materials into the planer Allow it to spin up to full soeed Determine if the machine is operating smoothly not making any excessive noises or vibrations If not the machine is ready to operate WARNING CHECK BLADE SETTING AND TIGHTNESS BEFORE INITIAL USE OPERATION WARNING Wear ANSI approved eye protection and observe all safety precautions when operating 1 Measure your workpiece to determine its current thickness and the amount you desire to plane off Maximum depth of cut is 1 8 if you need to remove more than this make repeated cuts Set the cutting depth by turning the Table Adjustment Handle 150 until the pointer indicates the correct depth on the scale Turn the machine OFF and unplug the power cord Insert the workpiece into the planer and visually check your setting to assure that no more than 1 8 will be planed off the workpiece WARNING Attempting to plane more than 1 8 at a time may cause the planer to jam potentially causing the workpiece to splinter and be ejected from the machine or the motor to jam and possibly burn out Never plane more than 1 8 at a time 4 WARNING Keep hands farther away from intake than rollers on extensions When you are satisfied the cut is properly set up remove the workpiece from the machine Plug in the planer and turn the power switch ON
13. ely at the rate for which it was intended Do not use inappropriate attachments in an attempt to exceed the tool s capacities Use the right tool for the job Do not use a tool for a purpose for which it was not intended Dress properly Do not wear loose clothing or jewelry as they can be caught in moving parts Non skid footwear is recommended Wear restrictive hair covering to contain long hair Always wear appropriate work clothing Use eye ear and breathing protection Always wear ANSI approved impact safety goggles if you are producing metal filings or wood chips Wear an ANSI approved dust mask or respirator when working around metal wood and chemical dusts and mists Use ANSI approved ear protection when working in a loud or noisy environment Do not abuse the power cord Protect the power cord from damage either from impacts pulling or corrosive materials Do not yank machine s cord to disconnect it from the receptacle Do not overreach Keep proper footing and balance at all times Do not reach over or across run ning machine Maintain tools with care Keep tools sharp and clean for better and safer performance Follow instructions for lubricating and changing accessories Inspect power cord periodically and if dam aged have it repaired by an authorized technician Inspect all hydraulic seals for leaks prior to use Control handle and power switch must be kept clean dry and free from oil and grease at all times Remo
14. o 210 __ Brush Holder 2 211 Carbon Brush 2 212 _ BrushCap J2 213 MotorBox M 214 Cap Screw m5x12 4 215 Washer m5 o J 216 __ Pad Head Screw m5x50 2 217 __ Pad Head Screw m525 2 301 _ Frame Support 2 302 Screw 304 Screw 305 Splash apon hooo 306 Spring oa 307 Roller Chain h 308 Retaining Rins fe 309 Sprocket o ooo a 310 Bushing f 311 _ Free Roler o2 a2 Tensions hoo 313 Chain 314 CapScrew m x22 8 MYMINIAIDAI INININI Ph fe ef PEEP Pe SKU 41921 For technical questions please call 1 800 444 3353 Part Description Q ty e17 omena Cd 318 key msx5x0 h 322 nonsen s7505 p 323 Nu mex e sea knife Lock Plato Je 325 Blade Knife eo a26 Topco h 327 screw mexo h ses Gearbox ph 2 fea o o s0 san ooo 331 sterar ho 332 SteelBalms p s3 mn o sa fea ooo ss omr e 37 Pm SOS 338 steersanma hoo ss fea ooo o 340 Bearing e0207 p sat Bearing 602027 h a2 Pinoncer h sg Free Puly h saa Nomen s264 oo 345 Face Screw e me ok a S fF Sf SS JF S Fl BOT S PT PO ENO TN OT S S S S S S CRD Page 13 41921 10 AUTO PLANER PARTS DIAGRAM MOTOR ASSEMBLY Please refer to Parts List on Page 13 Au D f T a s Po we Pe eal cr B ry fo 2 eG Shou BY DD T aao m i da o s TEI Ds an 1d a a i
15. or knots which are significantly harder than the surround ing wood These can break out or come loose during planing which can jam the machine 4 Check your workpiece for foreign objects such as nails screws or stones which may be embed ded in the wood Remove any foreign objects before planing or select another workpiece Foreign objects may come loose and be ejected from the machine causing a hazard Foreign objects may also damage the knife blades Plan the best way to handle warped and bowed boards 1 Boards which are warped across the width of the board cupped boards should have the top planed flat first lt TOP then turned over and the bottom planed flat eos TR 1 2 Depending on the width of the board you can reduce Figure 6 A Cupped Boar waste in planing cupped boards by ripping them length EE ROLES i wise first then planing both resulting pieces FLATTEN OUT 3 Boards which are warped lengthwise bowed boards P ANEO BEAT are difficult to successfully straighten out The feed roll 9 ers in the planer will effectively straighten out bowed boards as they pass through But the board will remain qz r T bowed when freestanding If the bowed board cannot But bow will come back after planing be used as is it is best to select another board Figure 7 A Bowed Board It is important to consider wood grain when planing 1 It is best to cut in such a way that the planer s knife blades are cutting with the g
16. rain This will reduce chip ping and result in a smoother finished surface You E FEED can identify the grain direction by looking at the edge Figure 8 Feed the Boara so the or end of the board You can also often feel the grain Knife Blades cut WITH the Grain with your fingers GRAIN e GRAIN 2 In some boards the grain direction reverses part KZ A ACAINN way along the board If possible cut such boards CLES GRAIN _ _ at the transition point and plane each piece sepa rately m Figure 9 Boards Whose Grain LaSLGu Changes Direction in the Middle 1 Always insert boards for planing into the front of the machine The insertion direction is indicated by the arrow on top of the left belt cover 2 Anti kickback devices are installed along the top edge of the front opening of the planer WARNING Avoid kickback by never overloading the machine SKU 41921 For technical questions please call 1 800 444 3353 Page 8 MAINTENANCE When not in use keep the machine unplugged and covered Store it in a dry place Store the safety switch cover in a safe place to prevent unauthorized use Unplug the machine before doing any maintenance 1 Note Regular lubrication is required to keep your planer in good condition and assure a long service life Do not apply grease to the belts a Keep the table guide rods clean and coated with a light coat of grease b Occasionally remove the top and
17. rn the adjustment screw g clockwise and press down on the blade It is important that you adjust the blade along its entire length so the blade has a consistent depth When the knife blade is properly adjusted tighten the locking _ nuts A firmly to lock itin place Be sure these nuts are ontight Figure 11 Knife Blade Gauge Re check alignment to be sure the knife blade did not slip during tightening SKU 41921 For technical questions please call 1 800 444 3353 Page 9 TROUBLESHOOTING Unplug the machine before attempting any repairs If the Planer runs roughly or has excessive vibration Verify that Knife Blades are not chipped are securely installed and are adjusted properly 2 Verify that all chains and belts are properly routed on their pulleys and sprockets and are not loose 2 Verify that the Table is not damaged and operates smoothly 4 Be sure the Crank is removed from the Planer before operation If the Planer will not operate at all 1 Verify that the planer is plugged in the main circuit breaker in the power source is operational and the integral circuit breaker on the machine is operational If either circuit breaker is open investigate further to determine and repair the cause of the fault 2 Verify that the Planer is not jammed 3 Inspect the carbon brushes in the motor to determine if they are in good condition 4 Look for broken damaged or loose electrical connections Repair before continuing
18. tf oe me F BLUE SKU 41921 For technical questions please call 1 800 444 3353 Page 14 41921 10 AUTO PLANER PARTS DIAGRAM CUTTER ASSEMBLY Please refer to Parts List on Page 13 SKU 41921 For technical questions please call 1 800 444 3353 Page 15
19. uld also receive a crank handle 2 carrying handles and 2 table exten sions with their related hardware If the 4 base brackets are not installed they should be included together with attaching hardware SKU 41921 For technical questions please call 1 800 444 3353 07i Page 4 INSTALLATION 1 It is important that the machine be located on a solid level platform Find a location that has easy access to 110 120 Volt electrical service Make sure this machine is located in a well lighted and well ventilated area The floor should be resistant to vibration There must be adequate room to insert and remove workpieces through the planer 2 To permanently install the machine check the platform to be sure it is even and level Make any required corrections to the platform If the base brackets are not attached to each lower corner of the machine attach them using the supplied hardware Mark and drill holes and mount the machine using bolts and nuts 3 If the machine will not be permanently installed it is advisable to attach it to wooden skids by means of the base brackets The skids should be solid hardwood at least 1 in thickness and 2 in width Route these skids along each side of the machine from front to back Each skid should extend several inches beyond the machine to allow them to be firmly clamped to the work surface before using the machine WARNING Never operate this machine if it is not firmly attached to a work surface If
20. ve adjusting keys and wrenches Be sure that keys and adjusting wrenches are removed from the tool or machine work surface before operation Avoid unintentional starting Be sure that you are prepared to begin work before turning the start switch on Stay alert Watch what you are doing Do not operate this machine when you are tired Do not operate this machine while under the influence of alcohol drugs or prescription medicines Check for damaged parts Before using any tool any part that appears damaged should be care fully 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 if any switch does not turn on and off properly Replacement parts and accessories When servicing use only identical replacement parts in tended for use with this tool Replacement parts are available from harbor freight tools Use of any other parts will void the warranty SKU 41921 For technical questions please call 1 800 444 3353 Page 3 Special Warnings when using this Planing Machine Using this Planer may create special hazards Take particular care to safeguard yourself and those around you Electrical Safety Never operate any tool if there is an electrical hazard

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