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Grizzly G0668 Saw User Manual

1. 43 Electrical Components 44 Motor Wiring Diagram 45 Welding Station Wiring 46 SECTION 8 47 a 47 Table amp Lower 48 Motor amp Lower Wheel 49 Welding sihes UN ME 50 ee 52 Upper Wh el ss en 53 ES E 54 WARRANTY AND RETURNS 57 INTRODUCTION Foreword We are proud to offer the Model GO668 20 Vertical Metal Cutting Bandsaw This machine is part of a growing Grizzly family of fine met alworking machinery When used according to the guidelines set forth in this manual you can expect years of trouble free enjoyable operation and proof of Grizzly s commitment to customer satisfaction The specifications drawings and photographs illustrated in this manual represent the Model 10668 when the manual was prepared However owing to Grizzly s policy of continuous improve ment changes may be made at any time with no obligation on the part of Grizzly For your convenience we always keep current Grizzly manuals available on our website at www grizzly com Any updates to your machine will be reflected in these manuals as soon as they are complete Visit our site often to check for the latest updates to this manual 2 9 Contact Info I
2. Ian ge Figure 57 Main electrical wiring see wiring diagram on Page 42 44 9 G0668 20 Vertical Metal Cutting Bandsaw Motor Wiring Diagram COLOR KEY Black White 0 Green mmm SHOCK HAZARD Disconnect power before working on wiring Figure 58 Motor junction box Motor wiring Motor Fan NOTICE Wiring The motor wiring shown here is current at the time of printing but it may not match your machine Always use the wiring diagram o GX inside the motor junction box To Control Panel P see Page 42 MOTOR DIRECTION ia NOTICE If motor rotates in opposite direc tion swap any two power source wires at the incoming terminals 10668 20 Vertical Metal Cutting Bandsaw 9 45 Welding Station Wiring Diagram SHOCK HAZARD Disconnect power before working on wiring Sel 5 Welding Button 2 0 69 N 4 2 lt Right Welding Clamp Lai C Welding Clamp 220V Transformer Grinder Grinder MO Switch Start Capacitor 3MFD 250VAC 46 Figure 59 We
3. E Ye HP ere 220V am Single Phase nuls gelsageadans 0 6A SI EE 3450 RPM GY E 60 Hz Number Of Speeds eere on sedet e ase le ar a ne ee reve cete 1 Power Transin eiecti chier chek Ra D LL Direct Drive IT O O Sealed and Lubricated 10668 20 Vertical Metal Cutting Bandsaw 9 Main Specifications Operation Information Number of Blade Variable Blade Speed 105 2102 Blade Size Range Vg A Blade rH 154 15994 Cutting Capacity Maximum Cutting Heights sire Eb RUE PEREGRINUS 12 Cutting Capacity Left innt 19 Table Information Table Tip 0 15 Left 45 Right Table Size Length Width Thickness sis 23 x 21 x 2 Floor to Cutting Surface of Table bec eck ics Les te REX REA eR YER dug req RA RAS 3655 Construction Tabl8 i eee ERE t OR e Ain Precision Ground Cast Iron aaa a a Mer AD Fully Balanced Cast Iron
4. PS se mi 44 NES 6 2 Figure 6 Typical fasteners for mounting to concrete floors NOTICE We strongly recommend securing your machine to the floor if it is hardwired to the power source Consult with your electrician to ensure compliance with local codes 10668 20 Vertical Metal Cutting Bandsaw Moving amp Placing AWARNING This bandsaw isa heavy machine Serious sonal injury may occur if safe moving methods are not used To be safe get assistance and use power equipment rated for over 1500 Ibs to move the ship ping crate and remove the machine from the crate To lift and move the bandsaw 1 Position lifting straps under the head of the bandsaw and on the forklift forks as shown in Figure 7 Figure 7 Lifting straps positioned on bandsaw AWARNING Only use lifting straps and power lifting equipment rated for at least 1500 Ibs and in good working condition If the bandsaw falls or tips over while moving it serious personal injury and property damage could result AB 2 Unbolt the bandsaw from the pallet 3 With two assistants to steady the bandsaw slowly lift it just enough to clear the pallet and floor obstacles then move it to the prepared location 4 Use shims between the machine mounting flanges and the floor to level the bandsaw Note Tighten the mounting fasteners evenly to avoid warping or cracking the base Test Run Once the bands
5. 13 Turn the Power Switch key to the OFF posi tion the Power Lamp should go out AWARNING The Power Switch is intended to prevent unauthorized use of this machine The Power Switch does not disconnect the bandsaw from power To avoid the risk of serious per sonal injury you MUST physically disconnect the bandsaw from the power source before performing adjustments maintenance or service to this machine 14 Press the Start button lf the machine does not start the Power Switch safety feature is working correctly the machine does start with the Power Switch key turned to the OFF position immediately disconnect power to the machine The Power Switch safety feature is not working correctly This safety feature must work properly before proceeding with regular operations Call Tech Support for help If all of the Test Run procedures were successful your bandsaw is ready for operation 10668 20 Vertical Metal Cutting Bandsaw Recommended Adjustments For your convenience the adjustments listed below have been performed at the factory However because of the many variables involved with shipping we recommend that you at least verify the following adjustments to ensure the best possible results from your new machine Step by step instructions for these adjustments can be found in the SERVICE section starting on Page 34 Factory adjustments that should be verified 1 Lower wheel pulley alig
6. Turn Over E Set Screws Tungsten Steel Inserts Mounting Hex Bolts Rotate Figure 51 Table mounting hex bolts and Blade Support adjusting set screws e 6 Adjust the set screws so that the table is square to the blade front to back and side to side Figure 52 Blade guide and support orientation As the blade is deflected back into the blade support during operation a groove will eventu Note Make small adjustments to the set ally wear into the blade support As this groove screws then recheck the alignment of the table with the blade becomes deeper it can affect the accuracy of the cut When this happens loosen the blade support 7 When the table is 90 to the blade from cap screw and rotate the blade support as shown front to back and side to side re tighten the in Figure 52 mounting hex bolts to secure the table align ment Note Make sure to re adjust the blade guides and support as directed in Adjusting Blade Guides amp Support on Page 26 after making lade G u ides these changes The inserts in the face of the blade guides and the blade support are made of tungsten steel With use the front of the blade guide inserts will wear and it may become difficult to properly adjust the guides to the blade refer to Adjusting Blade Guides amp Support on Page 26 If this is the case swap and turn over the blade guides so that the inserts are reversed rel
7. Industrial Mic MODEL G0668 20 VERTICAL METAL CUTTING BANDSAW OWNER S MANUAL COPYRIGHT FEBRUARY 2008 BY GRIZZLY INDUSTRIAL INC WARNING NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL INC TS10278 PRINTED IN TAIWAN WARNING This manual provides critical safety instructions on the proper setup operation maintenance and service of this machine equipment Failure to read understand and follow the instructions given in this manual may result in serious personal injury including amputation electrocution or death The owner of this machine equipment is solely responsible for its safe use This responsibility includes but is not limited to proper installation in a safe environment personnel training and usage authorization proper inspection and maintenance manual availability and comprehension application of safety devices blade cutter integ rity and the usage of personal protective equipment The manufacturer will not be held liable for injury or property damage from negligence improper training machine modifications or misuse WARNING Some dust created by power sanding sawing grinding drilling and other construction activities contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm Some examples of these chemicals are e Lead from lead based paints
8. 3 Using the table tilt scale adjust the angle of the table for your operation then re tighten the hex nut 27 Blade Welding Being able to quickly and safely weld a bandsaw blade comes in handy for the following situa tions e To repair a broken blade that is still sharp and useful e fabricate a new blade from a larger sec tion of blade material to fit your bandsaw e re join a blade that has been purposely cut for making an internal cut Your metal cutting bandsaw is equipped with a blade welder that uses electrical resistance to heat and fuse the blade ends together This process leaves the joint brittle so it needs to be annealed after welding to give it strength and flex ibility AWARNING The electric current that flows through the blade welder during operation could cause serious personal injury or death To avoid the risk of electrocution never touch the blade or any metal part of the machine dur ing blade welding or annealing To weld the ends of bandsaw together 1 Turn the bandsaw motor OFF 2 Place the blade evenly against the back of the blade shear and firmly pull the handle down to square off the blade end see Figure 26 Figure 26 Using the blade shear to cut the blade 28 3 To make a proper blade weld the ends of the blade must be evenly butted together during the welding process If necessary use the grinder to square up the ends or remove
9. A bandsaw blade is a delicate piece of steel that is subjected to tremendous strain A blade will last longer if you give it fair treatment and always use the appropriate feed rate for your operation Be sure to select blades with the proper width set type and pitch for each application Using the wrong blade often produces unnecessary heat and shortens the life of the blade A clean blade performs much better than a dirty blade Dirty or gummed up blades pass through the cutting material with much more resistance than clean blades This extra resistance also causes unnecessary heat Blade Break In The sharp teeth tips and edges of a new blade are extremely sharp and cutting at too fast of a feed rate may fracture the beveled edges of the teeth and cause premature blade wear To properly break in a new blade 1 Choose the correct speed for the blade and material of the operation 2 Reduce the feed pressure by half for the first 50 100 in of material cut 3 To avoid twisting the blade when cutting reduce the feed pressure when the total width of the blade is in the cut 4 Use the Chip Inspection Chart on Page 23 to check the blade efficiency 0668 20 Vertical Metal Cutting Bandsaw Chip Inspection Chart The best method of evaluating the performance of your cutting operation is to inspect the chips that are formed Refer to the chart below for chip inspection guidelines Chip Chip Chip Blade Feed Additiona
10. Check for binding or misaligned parts broken parts loose bolts and any other conditions that may impair machine operation Repair or replace damaged parts before operation USE RECOMMENDED ACCESSORIES Refer to the instruction manual for recom mended accessories Improper accesso ries increase risk of injury DO NOT FORCE MACHINERY Work at the speed for which the machine or acces sory was designed SECURE WORKPIECE Use clamps or a vise to hold the workpiece when practi cal A secured workpiece protects your hands and frees both hands to operate the machine DO OVERREACH Maintain stability and balance at all times MANY MACHINES EJECT WORKPIECES TOWARD OPERATOR Know and avoid conditions that cause the workpiece to kickback ALWAYS LOCK MOBILE BASES IF USED BEFORE OPERATING MACHINERY CERTAIN DUST MAY BE HAZARDOUS to the respiratory systems of people and animals especially fine dust Be aware of the type of dust you are exposed to and always wear a respirator designed to filter that type of dust 0668 20 Vertical Metal Cutting Bandsaw AWARNING Safety Instructions for Metal Cutting Bandsaws BLADE CONDITION Do not operate with dull cracked or badly worn blade that can break during operation or decrease the per formance of the bandsaw Inspect blades for cracks and missing teeth before each use BLADE REPLACEMENT Wear gloves to protect hands and saf
11. E rree M Q Rubber Blade Guides m C Tungsten Steel cpm T Cast Iron Base uuu Pre Formed Steel Wheel Covers Pre Formed Steel E Polyurethane Other Related Infomation WReCIIDIAMOLG te EET LO ID LUI QI ELTE 20 Electric Blade Welge r Gen aga a 220V 4 2KVA Annealing E 220V Mobile Base mE G7314 Other Specifications Country Of Onin itat See Ae HERR UR Ta nd LEUR dtr Perd ud Taiwan Warranty aaa EE 1 Year Serial Number Location ID Label on Upper Wheel Cover ASS6mbly TIME e M T 60 minutes Features Station for Joining Blade Ends Includes Cut Off Blades Electric Welder w Clamp Annealer and Grinder Variable Cutting Speeds w Digital Read Out Lower Wheel Cleaning Brush Work Light 9 0668 20 Vertical Metal Cutting Bandsaw Identification Front View Rear View Figure 1 Model G0668 identification Blade Shear Upper Wheel Door Guide Post Elevation Handwheel Guide Post Lock Knob Work Light 220V Air Hose amp Jet Blade Tension Handwheel Table Tilt Scale
12. any teeth that are in the welding zone see Figures 27 28 Figure 27 Using the grinder to square up the blade end Welding Zone Grind Off Figure 28 Blade ends and welding zone 0668 20 Vertical Metal Cutting Bandsaw 4 Loosen the welding clamps by pulling the lock levers down 5 Position the back of one blade end evenly against the back of the welding clamp so that the end is midway between the two clamps then rotate that lock lever all the way up to hold the blade end in place see Figure 29 Figure 29 Blade end properly position in welding clamp and locked in place 6 Set the clamping pressure dial to 0 see Figure 30 Note As the blade material melts to form the weld pressure is applied to the joint by the welding clamps The correct amount of pres sure is set with the clamping pressure dial in a later step WELDER 1 220101 2 K 10 457 m Clamping sy Pressure Figure 30 Blade ends in correct position for welding 10668 20 Vertical Metal Cutting Bandsaw 7 Place the other blade end in the opposite welding clamp and position it so that it evenly butts up against the opposing blade end then lock it in place by rotating that lock lever all the way up as shown in Figure 30 Note For a good blade weld it is critical that the blade ends evenly butt up against each other 8 Use the chart in Figure 31 and turn the clamping pressure dial to
13. e Crystalline silica from bricks cement and other masonry products e 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 equip ment such as those dust masks that are specially designed to filter out microscopic particles Table of Contents 2 asy 2 Contact MM Oise 2 Machine Data 3 T Ag naa ND HE A KKN 5 Control Panel Identification 6 SECTION 1 SAFETY gana ragen genea 7 Safety Instructions for Machinery 7 Safety Instructions for Metal Cutting Bandsaws 9 SECTION 2 CIRCUIT REQUIREMENTS 10 220V 3 Phase Operation 10 SECTION 3 SETUP 2 11 Setup ee eee any eer rene 11 Items Needed for Setup 11 Unpacking 11 EE 12 Site Considerations 12 Mounting to Shop Floor 13 Moving amp Placement 13 Test RUM me ET 14 Recommended Adjustments 15 SECTION 4 OPERATIONS 16 Operation Sa O
14. fast Reduce feed rate increase blade speed operating 2 Blade is dull 2 Replaca blade Page 24 Ticking sound when 1 Blade weld contacting blade guide support 1 Inspect re grind blade weld Page 28 re adjust the saw is running a light ticking is normal blade guides support Page 26 2 Blade weld may be failing 2 Inspect weld and re weld blade if necessary Page 28 or replace blade Page 24 Blade contacting 1 Table improperly mounted or aligned 1 Properly align table Page 40 table Vibration when cut 1 Workpiece is loose 1 Use the correct holding fixture and reclamp ting workpiece Loose or damaged blade 2 Re tension replace blade Pages 24 amp 25 Metal chip buildup on wheels 3 Clean metal chips from wheels Rough or poor qual 1 Feeding workpiece too fast 1 Reduce feed rate increase blade speed ity cuts Incorrect blade for operation worn or dam 2 Use the correct blade for the operation Page 19 aged blade replace worn or damaged blade Page 24 Blade guides support adjusted incorrectly 3 Correctly adjust blade guides support Page 26 set the blade guides approximately 1 8 above workpiece Re tension replace blade Pages 24 amp 25 doesn t cut straight 2 Metal on wheels 2 Clean metal met from wheels E 2 Table is not QUIS to the lads 2 table with blade Page 40 2 V belt is too tight lower 2 Check re tension the
15. or serious injury AWAR N Indicates a potentially hazardous situation which if not avoided COULD result in death or serious injury A CAUTION Indicates a potentially hazardous situation which if not avoided MAY result in minor or moderate injury It may also be used to alert against unsafe practices NOTICE This symbol is used to alert the user to useful information about proper operation of the machine AWARNING Safety Instructions for Machinery READ THE ENTIRE MANUAL BEFORE STARTING MACHINERY Machinery pres 4 ALWAYS USE HEARING PROTECTION WHEN OPERATING MACHINERY ents serious injury hazards to untrained users ALWAYS USE ANSI APPROVED SAFETY GLASSES WHEN OPERATING MACHINERY Everyday eyeglasses only have impact resistant lenses they are NOT safety glasses ALWAYS WEAR A NIOSH APPROVED RESPIRATOR WHEN OPERATING MACHINERY THAT PRODUCES DUST Most types of dust wood metal etc can cause severe respiratory illnesses 10668 20 Vertical Metal Cutting Bandsaw 9 Machinery noise can cause permanent hearing loss WEAR PROPER APPAREL DO NOT wear loose clothing gloves neckties rings or jewelry that can catch in moving parts Wear protective hair covering to contain long hair and wear non slip footwear NEVER OPERATE MACHINERY WHEN TIRED OR UNDER THE INFLUENCE OF DRUGS OR ALCOHOL Be mentally alert at all times when running machinery 7 AWARNING Safety Instructions for Machinery
16. support to keep the blade straight while cutting These devices have tungsten steel facing to reduce wear on the surfaces Properly adjusted blade guides and supports are essential to making accurate cuts To properly adjust the upper and lower blade guides and supports 1 DISCONNECT BANDSAW FROM POWER 2 Make sure the bandsaw blade is properly ten sioned refer to Page 25 and the blade post is in the correct position and locked 3 Use a 6mm hex wrench to loosen the cap screws that secure the blade guide bracket and blade support see Figures 20 21 Blade Guide Bracket Cap Screw Blade Support Cap Screw Figure 20 Upper blade guides and bracket AWARNING The bandsaw blade is sharp and can easily cut your hand or fingers Always disconnect the power and wear heavy leather gloves when making adjustments to or near the blade 26 7 2237 Blade Guide Bracket cv Figure 21 Lower blade guides and bracket 4 Position the blade guides so that they are approximately 1 6 behind the tooth gullets see Figure 22 then re tighten the blade guide bracket cap screw Blade Guide Figure 22 Blade guides positioned approximately behind tooth gullets NOTICE The blade guides must be adjusted far enough back so that they are behind the tooth gullets when the blade is deflected back against the blade support during oper ation Otherwise the t
17. to the Material Width Diameter row of the blade selection chart in Figure 15 and read across to find the workpiece thickness you need to cut Refer to the Material Shapes row and find the shape of the material to be cut In the applicable row read across to the right and find the box where the row and column intersect Listed in the box is the minimum TPI recommended for the variable tooth pitch blades The Cutting Speed Rate Recommendation section of the chart offers guidelines for vari ous metals given in feet per minute FPM Choose the speed closest to the number shown in the chart Material Width Diameter Teeth Per Inch TPI for Variable Pitch Blades Material Shapes inch 2 22 3 3 4 5 6 7 8 9 10 CUTTING SPEED RATE RECOMMENDATION 11 12 13 14 15 16 17 18 19 a e d FPM i d FPM Carbon Tem Tool Steel Alloy m 7 Free Machining Tm 203 Steel 60 108 99 tee 62 Steel 98 Stainless Steel 46 62 Angle 180 220 High Speed 36 Mold Steel 246 Gray 108 e Steel 54 67 Tool Steel 75 Cast 33 Thin s e Cold Work e a Water 242 Ductile 65 85 Tube Tool Steel Hardened 75 Austenitic 20 26 Tool Steel Cast lron Aluminum 220 534 Hot Work 203 Stainless 85 Malleable 321 Alloy 67 163 Tool Steel 62 Steel 26 Cast 98 Copper 229 482 Oil Hardened 203 213 CR Stainless 85 203 Plasti 220 Alloy
18. tripped Power supply switched OFF or is at fault Wiring is open has high resistance Inverter is at fault Motor is at fault Feeding workpiece too fast Workpiece alignment is poor Wrong workpiece material or blade Blade is slipping on wheels Motor connection is wired incorrectly V belt s slipping Plug receptacle is at fault Pulley sprocket slipping on shaft Motor bearings are at fault 10 Machine is undersized for the task 11 Motor has overheated 12 Motor is at fault tion Rotate clockwise until it pops out replace it if faulty Test for good contacts correct the wiring Correct motor wiring connections Page 45 Ensure circuit size is suitable for this machine replace weak breaker Ensure power supply is switched on ensure power supply has the correct voltage Check for broken wires or disconnected corroded connections and repair replace as necessary Replace inverter Test repair replace Reduce feed rate increase blade speed Eliminate workpiece binding use jig fence guide clamps roller table or push blocks as required for workpiece alignment control Use metal with correct properties for your type of machining match blade with workpiece and opera tion Adjust blade tracking and tension Page 25 redress rubber wheel tires if necessary Page 33 Correct motor wiring connections Page 45 Replace bad V belt s as a matche
19. 0 DESCRIPTION REF PART DESCRIPTION P0668407 MACHINE ID LABEL P0668401 MODEL LABEL G8588 GRIZZLY NAMEPLATE 9 1 2 X 4 1 2 REF PART AWARNING Safety labels warn about machine hazards and ways to prevent injury The owner of this machine MUST maintain the original location and readability of the labels on the machine If any label is removed or becomes unreadable REPLACE that label before using the machine again Contact Grizzly at 800 523 4777 or www grizzly com to order new labels 54 G0668 20 Vertical Metal Cutting Bandsaw CUT ALONG DOTTED LINE Grizzly NARRANTY CARD Industrial Inc Name Street City State Zip Phone Email Invoice Model Order Serial The following information is given on a voluntary basis It will be used for marketing purposes to help us develop better products and services Of course all information is strictly confidential 1 How did you learn about us Advertisement Friend Catalog Card Deck Website Other 2 Which of the following magazines do you subscribe to Cabinet Maker ____ Popular Mechanics ____ Today s Homeowner Family Handyman Popular Science Wood Hand Loader Popular Woodworking Wooden Boat ____ Handy ____ Practical Homeowner ____ Woodshop News Home Shop Machinist Precision Shooter ____ Woodsmith Journal of Light Cont Projects in Metal Woodwork Live Steam ____ RC Modeler ____ Woodworker West Model Airplane News Rifle ____
20. 20V SIGE site asi owas E E E T 6 ft Cd GaUi E a MIND N 14 gauge Required POWer SOUrCE iiias eirinen i see api ten ara aa aaa 220V 3 Phase Re c mm nded Circuit c 15A eluded PIUG sasar soang ank gana a ad ka bab AG GONE EE EA ANG iia astana aasan iii No Motors Bandsaw TYPE Re pd TEFC Capacitor Start Induction ales C E 2HP M aba 220V PNAS e E 3 Phase ATIS c rome errori CE eO E eeu pada ag SED 6 6A Pole Speeds USE Renee EN Pe III 6 Pole 1175 RPM GY eae 60 Hz Number Of Speeds FEES ras ace bee ind trece ru trie buta fumer 1 Power Transfer pu ten Belt Drive Bearings Haeo E ee im Shielded and Permanently Sealed Grinder TYPE NGA a ig ga aa bang Ba pi NEGEN GUNG Wa a eni a a D ae Nad TEFC Capacitor Start Induction uet EM ei
21. 448 Economy Clear Safety Glasses T20452 Kirova Anti Relective Glasses T20456 Dakura Clear Safety Glasses H0736 Shop Fox Safety Glasses These glasses meet ANSI Z87 1 2003 specifica tions Buy extras for visitors or employees You can t be too careful with shop safety T20448 T20456 Figure 34 Our most popular eye protection T20514 Small Half Mask Respirator T20515 Medium Half Mask Respirator T20516 Large Half Mask Respirator T20511 Pre Filter P100 T20539 Cartridge Filter 2PK P100 T20541 Cartridge Filter 2PK P100 amp O Vapor Wood and other types of dust can cause severe respiratory damage If you work around dust every day a half mask respirator can greatly reduce your risk Compatible with safety glasses Figure 35 Half mask respirator with disposable cartridge filters Call 1800 5234777 To 10668 20 Vertical Metal Cutting Bandsaw Grizzly Metal Cutting Bandsaw Blades Variable Pitch 1 Width 0 035 Gauge T20523 3 4 VP T20524 4 6 VP T20525 5 8 VP T20526 6 10 VP T20527 8 12 VP T20528 10 14 VP H5408 Blade Tensioning Gauge The Blade Tensioning Gauge ensures long blade life reduced blade breakage and straight cutting by indicating correct tension A precision dial indi Figure 36 H5408 Blade Tensioning Gauge G5562 SLIPIT 1 Qt Gel G5563 SLIPIT 12 oz Spray G2
22. 70 147 Tool Steel 62 65 Steel 26 62 ASis 67 Figure 15 General guidelines for blade selection and speed chart 10668 20 Vertical Metal Cutting Bandsaw 9 204 Blade Breakage Many conditions may cause a bandsaw blade to break Blade breakage is unavoidable in some cases since it is the natural result of the peculiar stresses that bandsaw blades must endure Blade breakage is also due to avoidable circumstances Avoidable blade breakage is most often the result of poor care or judgement on the part of the operator when mounting or adjusting the blade or support guides The most common causes of blade breakage are e Faulty alignment or adjustment of the blade guides e Forcing or twisting a wide blade around a short radius e Feeding the workpiece too fast e Dull or damaged teeth e Over tensioned blade e blade guide assembly set too high above the workpiece Adjust the top blade guide assembly so that there is approximately 1 4 between the bottom of the assembly and the workpiece e Using blade with a lumpy or improperly fin ished braze or weld e Continuously running the bandsaw when not in use e Leaving the blade tensioned when not in use e Using the wrong pitch TPI for the workpiece thickness The general rule of thumb is to have at least three teeth in contact with the workpiece at all times during cutting 22 9 Blade Care amp Break In Blade Care
23. 871 Boeshield T 9 12 oz Spray H3788 G96 Gun Treatment 12 oz Spray Figure 37 Recommended products for protect ing unpainted cast iron steel part on machinery ED SECTION 6 MAINTENANCE AWARNING Always disconnect power to the machine before performing maintenance Failure to do this may result in serious person al injury Schedule For optimum performance from your machine follow this maintenance schedule and refer to any specific instructions given in this section Daily Check correct damaged or dull saw blade e Check correct worn or damaged wires e Clean protect table e Clean metal chips from upper and lower wheel areas and the lower wheel brush and empty bottom chip pan e Correct any other unsafe condition Monthly e Check for V belt tension damage or wear e Lubricate tension leadscrews and guide post rack e Remove the blade and clean the wheels e Re adjust the lower wheel brush 32 Cleaning Use a brush and a shop vacuum to remove chips and other debris from the machine Keep the table rust free with regular applications of products like G96 Gun Treatment SLIPIT or Boeshield T 9 see Section 5 Accessories on Page 31 Once a month remove the blade and thoroughly clean all metal chips and built up oil or sludge from the wheel surfaces Redress the rubber tires if necessary Page 33 When cleaning the wheel areas empty and clean the chip pan see F
24. FF and the plug pulled from the outlet Wait for all moving parts to come to a complete stop WORKPIECES Workpieces that cannot be supported or stabilized without a vise or jig should not be cut on a vertical metal cutting bandsaw because they can unexpectedly move while cutting and draw the operator s hands into the blade causing serious personal injury Examples are chains cables round or oblong shaped workpieces workpieces with internal or built in moving or rotations parts etc EXPERIENCING DIFFICULTY If at any time you are experiencing difficulties per forming the intended operation stop using the machine Contact our Technical Support Department at 570 546 9663 A CAUTION No list of safety guidelines can be complete Every shop environment is different Always con sider safety first as it applies to your individual working conditions Use this and other machin ery with caution and respect Failure to do so could result in serious personal injury damage to equipment or poor work results 10668 20 Vertical Metal Cutting Bandsaw 0 SECTION 2 CIRCUIT REQUIREMENTS 220V 3 Phase Operation AWARNING Serious personal injury could occur if you connect the machine to power before com pleting the setup process DO NOT connect the machine to the power until instructed later in this manual AWARNING Electrocution or fire could result if machine is not grounded and installed in compliance with electric
25. Motor Access Panel rommoomup 10668 20 Vertical Metal Cutting Bandsaw ovozzrmat Machine Mounting Flange Lower Wheel Door Lower Blade Guide Assembly Table Upper Blade Guide Assembly Guide Post and Blade Guard Bandsaw Power Control Panel Blade Welding Station Control Panel Identification Digital Speed Display FPM Variable Speed Dial Welding ON Button Annealing ON Button Clamping Pressure Dial Welding Clamp Welding Clamp Lock Levers Grinding Wheel ON OFF Switch Grinding Wheel Power Switch amp Key Power Lamp Bandsaw Start Button Emergency Stop Button Variable Speed Regulator am H L MADE IN TAIWAN JN Figure 2 Control panel identification 6 0668 20 Vertical Metal Cutting Bandsaw SECTION 1 SAFETY AWARNING For Your Own Safety Read Instruction Manual Before Operating this Machine The purpose of safety symbols is to attract your attention to possible hazardous conditions This manual uses a series of symbols and signal words intended to convey the level of importance of the safety messages The progression of symbols is described below Remember that safety messages by themselves do not eliminate danger and are not a substitute for proper accident prevention measures T Indicates an imminently hazardous situation which if not avoided DANG E R WILL result in death
26. ONLY ALLOW TRAINED AND PROP ERLY SUPERVISED PERSONNEL TO OPERATE MACHINERY sure operation instructions are safe and clearly understood KEEP CHILDREN AND VISITORS AWAY Keep all children and visitors a safe dis tance from the work area MAKE WORKSHOP CHILDPROOF Use padlocks master switches and remove start switch keys NEVER LEAVE WHEN MACHINE IS RUNNING Turn power OFF and allow all moving parts to come to a complete stop before leaving machine unattended DO NOT USE IN DANGEROUS ENVIRONMENTS DO NOT use machin ery in damp wet locations or where any flammable or noxious fumes may exist KEEP WORK AREA CLEAN AND WELL LIGHTED Clutter and dark shadows may cause accidents USE A GROUNDED EXTENSION CORD RATED FOR THE MACHINE AMPERAGE Grounded cords minimize shock hazards Undersized cords create excessive heat Always replace damaged extension cords ALWAYS DISCONNECT FROM POWER SOURCE BEFORE SERVICING MACHINERY Make sure switch is in OFF position before reconnecting MAINTAIN MACHINERY WITH CARE Keep blades sharp and clean for best and safest performance Follow instructions for lubricating and changing accessories MAKE SURE GUARDS ARE IN PLACE AND WORK CORRECTLY BEFORE USING MACHINERY 17 REMOVE ADJUSTING KEYS AND WRENCHES Make a habit of checking for keys and adjusting wrenches before turn ing machinery ON CHECK FOR DAMAGED PARTS BEFORE USING MACHINERY
27. V belt Page 36 Blade does not track 1 Wheels are not coplanar or aligned with 1 Adjust wheels to be coplanar aligned with one consistently each other another Page 38 rectly at all 2 Rubber tires on wheels are worn out 2 Redress the rubber tires on the wheels Page 33 10668 20 Vertical Metal Cutting Bandsaw 9 35 Lower Wheel Pulley Alignment Tools Needed Qty Hex Wrench 6mMmm iii 1 Wrench 19MM eem 1 The correct alignment of the motor and lower wheel pulleys helps to ensure correct and even tension of the V belts proper power transmission and reduced V belt heat and wear during opera tion Remove the rear motor access panel and use a straightedge across both pulleys as shown in Figure 41 to check the pulley alignment Wheel Pulley Hex Bolts Figure 41 Checking pulley alignment If necessary loosen the fasteners securing the wheel pulley to the shaft align the wheel pulley with the motor pulley then re tighten the fasteners for both pulleys 36 Tensioning V Belts Tools Needed Qty WENCH a 1 To ensure optimum power transfer from the motor to the blade without slipping the V belts must be in good condition and operate under proper ten sion Check V belt tension at least monthly more often if the bandsaw is used daily V belts stretch with use and must be periodically re tensioned To check tension re
28. Woodworkers Journal Modeltec Shop Notes Other Old House Journal Shotgun News 3 What is your annual household income 20 000 29 000 30 000 39 000 40 000 49 000 50 000 59 000 60 000 69 000 70 000 4 Whatis your age group ____ 20 29 _____ 90 39 40 49 50 59 60 69 70 5 How long have you been a woodworker metalworker 0 2 Years 2 8 Years 8 20 Years 20 Years 6 How many of your machines or tools are Grizzly 0 2 3 5 6 9 10 7 Do you think your machine represents a good value Yes No 8 Would you recommend Grizzly Industrial to a friend Yes No 9 Would you allow us to use your name as a reference for Grizzly customers in your area Note We never use names more than 3 times __ Yes No 10 Comments FOLD ALONG DOTTED LINE Grizzly Industrial Ic GRIZZLY INDUSTRIAL INC P O BOX 2069 BELLINGHAM WA 98227 2069 FOLD ALONG DOTTED LINE Send a Grizzly Catalog to a friend Name Street TAPE ALONG EDGES PLEASE DO NOT STAPLE WARRANTY AND RETURNS Grizzly Industrial Inc warrants every product it sells for a period of 1 year to the original purchaser from the date of purchase This warranty does not apply to defects due directly or indirectly to misuse abuse negligence accidents repairs or alterations or lack of maintenance This is Grizzly s sole written warranty and any and all warranties that may be implied by law including any merchantability or fitness for any par ticul
29. adjusting fasteners consist of four locking hex bolts and four adjusting hex bolts with jam nuts see Figure 47 Locking Hex Bolt Hex Bolt amp Jam Nut q Figure 47 Upper wheel adjusting fasteners To adjust the upper wheel 1 Loosen the upper wheel locking hex bolts then loosen the jam nuts see Figure 47 2 Use the adjustment hex bolts to bring the upper wheel coplanar with the lower wheel Note Threading an adjustment hex bolt in will force that part of the wheel forward Conversely threading an adjustment hex bolt out will pull that wheel section to the rear of the machine when the locking hex bolt is re tightened 3 Re tighten the locking hex bolts and jam nuts to secure the settings of the adjustment hex bolts 4 Re checkthe wheels for alignment and repeat the steps above if necessary 10668 20 Vertical Metal Cutting Bandsaw The lower wheel adjustment assemblies have a locking hex bolt threaded into an adjustment sleeve see Figure 48 Lower Wheel Adjustment Assemblies 3 of 4 shown Uy A a Figure 48 Lower wheel adjustment assemblies To adjust the lower wheel 1 Loosen the locking hex bolts of the lower wheel 2 Loosen or tighten the adjustment sleeves as necessary to bring the lower wheel coplanar with the upper wheel Example 1 f the top of the lower wheel leans too far forward see fourth example in Figure 49 thread the top two
30. adjustment sleeves out Example 2 Alternately if the lower wheel is parallel to the upper wheel but behind the plane of the upper wheel see second example in Figure 49 then thread all four adjustment sleeves in 3 Re tighten the locking hex bolts to secure the settings of the adjustment sleeves 4 Re checkthe wheels for alignment and repeat the steps above if necessary 39 LL Parallel Not Coplanar Coplanar Coplanarity Gauge Coplanarity Gauge Contacts Top And Bottom of Both Wheels Coplanar Not Parallel Not Parallel Not Coplanar Figure 49 Examples of wheel orientation to one another Aligning Table to Blade To ensure the angle accuracy of the cut the table must be 90 to the blade from front to back and side to side If the table is not square to the blade it needs to be adjusted Tools Needed Qty Hex Wrench 5mm iii 1 WENCH 1 To adjust the table square to the blade 1 DISCONNECT BANDSAW FROM POWER 2 Make sure the wheels are correctly aligned Page 38 and the blade is properly ten sioned Page 25 3 Set the angle of the table to 40 4 Use square to check table alignment with the side and the back of the blade as shown in Figure 50 Figure 50 Checking table alignment with the blade 0668 20 Vertical Metal Cutting Bandsaw 5 Loosen the table mounting hex bolts see Figure 51 Swap a
31. al codes Compliance MUST be verified by a qualified electrician Full Load Amperage Draw Motor Draw at 220 7 Amps Power Supply Circuit Requirements You MUST connect your machine to a grounded circuit that is rated for the amperage given below Never replace a circuit breaker on an existing cir cuit with one of higher amperage without consult ing a qualified electrician to ensure compliance with wiring codes If you are unsure about the wiring codes in your area or you plan to con nect your machine to a shared circuit consult a qualified electrician Minimum Circuit 220V 3 Phase 15 Amps 410 Power Connection Device The type of plug required to connect your machine to power depends on the type of service you cur rently have or plan to install We recommend using the plug shown in Figure 3 Grounded Outlet Box Current Carrying Blades Grounding Pin Figure 3 NEMA 15 15 plug and receptacle Extension Cords Using extension cords may reduce the life of the motor Instead place the machine near a power source If you must use an extension cord e at least a 14 gauge cord that does not exceed 50 feet in length e extension cord must also have a ground wire and plug pin e qualified electrician MUST size cords over 50 feet long to prevent motor damage Phase Converter Precaution The power from the manufactured leg of a phase converter
32. ar purpose are hereby limited to the duration of this written warranty We do not warrant or represent that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants In no event shall Grizzly s liability under this warranty exceed the purchase price paid for the product and any legal actions brought against Grizzly shall be tried in the State of Washington County of Whatcom We shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential damages arising from the use of our products To take advantage of this warranty contact us by mail or phone and give us all the details We will then issue you a Return Number which must be clearly posted on the outside as well as the inside of the carton We will not accept any item back without this number Proof of purchase must accompany the merchandise The manufacturers reserve the right to change specifications at any time because they constantly strive to achieve better quality equipment We make every effort to ensure that our products meet high quality and durability standards and we hope you never need to use this warranty Please feel free to write or call us if you have any questions about the machine or the manual Thank you again for your business and continued support We hope to serve you again soon OMAN CONTE TOOL WEBSITE Buy Direct and Save with Grizzly Trusted Pr
33. ative to the blade see Figure 52 0668 20 Vertical Metal Cutting Bandsaw 9 41 Electrical amp Control Wiring Diagram N SHOCK HAZARD bere rigo mm wiring e Tw 5 p e BE E fee 2 z DAV FE ov 0 a gt gt g Qn 2 E IRLI gt Control Panel e g see Figure 55 on Page 44 3 7 5 5 COLOR KEY Black ME H H White M Lu OV 5L 3 13NO gt 5 5 55 E 2 2T 1 47 2 67 3 14NO 9 12 9 1 2 To Welding Station see Photo amp Wiring 3 OV oi T Diagram on Page 46 To Motor Fan see Photo amp Wiring We Wi Diagram on Page 45 a St MC d 2 i e Ars Ground lt see Wiring PIE SS Diagram 4 43 L 220V Connect the d
34. aw is in place test run your machine to make sure it runs properly and is ready for regular operation The test run consists of veri fying the following 1 The bandsaw motor powers up and runs correctly and 2 the Emergency Stop button safety feature works correctly If during the test run you cannot easily locate the source of an unusual noise or vibration stop using the machine immediately then review Troubleshooting on Page 34 If you cannot find a remedy contact our Tech Support at 570 546 9663 for assistance To test run the bandsaw 1 Read and follow the safety instructions at the beginning of the manual and make sure the machine is setup properly 2 Clear all tools and objects used during setup away from the machine and make sure both wheel doors are closed and secured 3 Make sure the blade is properly tensioned and the blade guides are positioned correctly refer to Blade Tensioning on Page 25 and Adjusting Blade Guides on Page 26 for detailed instructions 4 Connect the machine to the power source 14 Place the key in the Power Switch and turn it to the ON position the Power Lamp should light Push the Emergency Stop button in then twist it clockwise so it pops out When the Emergency Stop button pops out the switch is reset and ready for operation see Figure 8 To Reset Twist Button Switch Clockwise Figure 8 Emergency stop button Push the Start button to turn the mac
35. d of the blade to be used depends on the workpiece material and the type of cut required This type of bandsaw can be used for straight cuts angular cuts curved or contour cuts and internal cuts Straight cuts are made using workpiece fix tures and with a light even pressure against the blade Angular cuts are made with the table and workpiece tilted at an angle other than O When an internal cut is to be made a hole must be drilled in the workpiece The blade is then cut fed through the hole in the workpiece welded together again using the welding station and re installed on the bandsaw to make the cut The welding station can also be used to fabricate new blades and repair broken blades The blade is supported by upper and lower tung sten steel blade guides that keep the blade from wandering during the cut The efficiency of the cutting operation can be eas ily checked by examining the shape and color of the metal chips AWARNING Workpieces that cannot be supported or stabilized without a vise or jig should not be cut on a vertical metal cutting bandsaw because they can unexpectedly move while cutting and draw the operator s hands into the blade causing serious personal inju ry Examples are chains cables round or oblong shaped workpieces workpieces with internal or built in moving or rotations parts etc 0668 20 Vertical Metal Cutting Bandsaw Cutting Tips e Keep the upper blade guides adjusted
36. d set align pul leys and re tension Pages 36 amp 37 Test for good contacts correct the wiring Replace loose pulley shaft Test by rotating shaft rotational grinding loose shaft requires bearing replacement Use sharp blade with lower TPI reduce the feed rate use a small amount of oil based coolant if nec essary Clean off motor let cool and reduce workload Test repair replace 0668 20 Vertical Metal Cutting Bandsaw Motor amp Electrical continued Possible Cause Possible Solution Machine has 1 V belt s worn or loose Inspect replace V belts with a new matched set tion or noisy opera Pages 36 amp 37 tion Pulley is loose Realign replace shaft pulley set screw and key as required Motor mount loose broken Tighten replace Machine is incorrectly mounted or sits 4 Tighten replace anchor studs in floor relocate shim unevenly machine Workpiece is loose Use the correct holding fixture and reclamp workpiece Motor fan is rubbing on fan cover Replace dented fan cover replace loose damaged fan Motor bearings are at fault Test by rotating shaft rotational grinding loose shaft requires bearing replacement Blade is at fault Re tension replace blade Pages 24 amp 25 Blade wheels out of alignment Re align blade wheels Page 38 Cutting Operations Possible Cause Possible Solution Machine slows when 1 Feeding workpiece too
37. e and inspect it If you discover the machine is damaged please imme diately call Customer Service at 570 546 9663 for advice Save the containers and all packing materials for possible inspection by the carrier or its agent Otherwise filing a freight claim can be difficult 11 Clean Up The unpainted surfaces are coated with a waxy oil to prevent corrosion during shipment Remove this protective coating with a solvent cleaner or degreaser shown in Figure 4 For thorough cleaning some parts must be removed For opti mum performance from your machine clean all moving parts or sliding contact surfaces Avoid chlorine based solvents such as acetone or brake parts cleaner that may damage painted surfaces Always follow the manufacturer s instruc tions when using any type of cleaning product AWARNING Gasoline and petroleum products have low flash points and can explode or cause fire if used to clean machinery DO NOT use these products to clean the machinery A CAUTION Many cleaning solvents are toxic if inhaled Minimize your risk by only using these products ina well ventilated area G2544 Solvent Cleaner amp Degreaser A great product for removing the waxy shipping grease from your machine during clean up Oe T 1 200 523 4777 0 80 CLEANER 110 0 h q eh DE GREASER Figure 4 Cleaner degreaser available from Grizzly 12 Site Considerations Floor L
38. ecking the blade deflection again Repeat this step until you are satisfied 5 Close the upper wheel door and reposition the guide post 10668 20 Vertical Metal Cutting Bandsaw Guide Post The guide post assembly is used for two purpos es 1 To properly position the blade guard to pro tect the operator from the exposed blade between the workpiece and the upper wheel housing and 2 to position the upper blade guides close to the workpiece for blade support In order to cut accurately and safely position the bottom of the upper blade guides approximately above the workpiece this positioning pro vides the greatest blade support and minimizes the amount of blade exposed to the operator dur ing operation To properly position the guide post 1 DISCONNECT BANDSAW FROM POWER 2 Loosen the guide post lock knob see Figure 19 Guide Post Elevation Handwheel Blade 2 Guide Post Guard Lock Knob Blade Guides amp Air Nozzle Guide Post Figure 19 Guide post assembly 3 Use the guide post elevation handwheel to position the bottom of the upper blade guides approximately 1 4 above the workpiece then re tighten the lock knob NOTICE To prolong blade life release the tension on the blade if the machine will be idle for an extended period of time 25 Adjusting Blade Guides amp Supports The blade guides and supports provide side to side and rear
39. ect the power and wear heavy leather gloves when making adjustments to or near the blade 0668 20 Vertical Metal Cutting Bandsaw Blade Selection Selecting the right blade for the cut requires a knowledge of various blade characteristics Blade Terminology m G Figure 11 Bandsaw blade terminology A Kerf The amount of material removed by the blade during cutting B Tooth Set The amount each tooth is bent left or right from the blade C Gauge The thickness of the blade D Blade Width The widest point of the blade measured from the tip of the tooth to the back edge of the blade E Tooth Rake The angle of the tooth face from a line perpendicular to the length of the blade F Gullet Depth The distance from the tooth tip to the bottom of the curved area gullet G Tooth Pitch The distance between tooth tips H Blade Back The distance between the bot tom of the gullet and the back edge of the blade The number of teeth per inch measured from gullet to gullet 10668 20 Vertical Metal Cutting Bandsaw Blade Length Measured by the blade circumference blade lengths are usually unique to the brand of your bandsaw and the distance between the wheels 10668 Blade Length 15412 15934 Blade Width Measured from the back of the blade to the tip of the blade t
40. eeth will be damaged as they come in contact with the blade guides 0668 20 Vertical Metal Cutting Bandsaw 5 Slide the blade support see Figure 23 up to but not touching the back of the blade then re tighten the blade support cap screw Blade Guide Cap Screws Blade Support Figure 23 Blade guide assembly upper assembly shown without blade for clarity 6 Rotate the upper wheel by hand so that the blade weld is between the blade guides 7 Use a 4mm hex wrench to loosen the blade guide cap screws see Figure 23 8 Fold a crisp dollar bill in half and place it over the blade between the blade guides and the blade as shown in Figure 24 a Figure 24 Using a dollar bill to set blade guide spacing 10668 20 Vertical Metal Cutting Bandsaw 9 Lightly pinch the dollar bill against the blade with the blade guides re position the air nozzle if necessary then re tighten the blade guide cap screws Note The goal is to position the blade guides as close as possible to the blade without touching it during operation Adjusting Table Tilt To perform beveled cuts the bandsaw table tilts 15 to the left and 45 to the right To adjust the table tilt 1 DISCONNECT BANDSAW FROM POWER 2 Use a 23mm wrench to loosen the hex nut underneath the rear of the table see Figure 25 Table Tilt Scale Hex Nut Figure 25 Table tilt scale and hex nut
41. ety glasses to pro tect eyes when replacing the blade When replacing blades make sure teeth face forward and down toward the table in the direction of blade travel WORKPIECE HANDLING Your hands can be drawn into the blade during operation if the workpiece moves unexpectedly Always keep your hands a safe distance away from the moving blade FIRE HAZARD Use EXTREME CAUTION if cutting magnesium Using the wrong cut ting fluid will lead to chip fire and possible explosion WELDING AND GRINDING SAFETY The welding station represents a serious hazard DO NOT touch any metal parts of the blade welder or machine when activating the welder Keep your hands a safe distance away from the grinding wheel when in use HOT SURFACES Be aware that touch ing hot workpieces or chips after welding grinding or cutting can cause burns 7 ROUND UNSTABLE CUTTING FLUID SAFETY Cutting fluids are poisonous Always follow manufactur ers cutting fluid safety instructions Pay particular attention to contact contamina tion inhalation storage and disposal warn ings Spilled cutting fluid invites slipping hazards ENTANGLEMENT HAZARDS Always keep the blade guard correctly positioned and wheel doors closed and secured when bandsaw is in operation Loose clothing jewelry long hair and work gloves can be drawn into working parts MAINTENANCE SERVICE All inspections adjustments and maintenance are to be done with the power O
42. f you have any comments regarding this manual please write to us at the address below Grizzly Industrial Inc o Technical Documentation Manager P O Box 2069 Bellingham WA 98227 2069 Email manuals grizzly com We stand behind our machines If you have any service questions or parts requests please call or write us at the location listed below Grizzly Industrial Inc 1203 Lycoming Mall Circle Muncy PA 17756 Phone 570 546 9663 Fax 800 438 5901 E Mail techsupport grizzly com Web Site http www grizzly com 0668 20 Vertical Metal Cutting Bandsaw Gr IZZIY SHEET Industrial Inc Customer Service 570 546 9663 e To Order Call 800 523 4777 Fax 800 438 5901 MODEL GO668 20 VARIABLE SPEED VERTICAL METAL CUTTING BANDSAW Product Dimensions Weight 1145 Ibs 474 29 x 77 Foot Print Width Ain nmn nnnm Pra a ag 41 x 20 Shipping Dimensions ee Wood amp Cardboard M Machine LACET ARR atin E ae 1321 Ibs Length Width Height 2 23 es 47 x 3875 x 86 Electrical eR ON OFF Push Button w Safety Lockout Key SMITH VOA 0 p 2
43. hase Power manufactured Ho leg of a power converter to the S terminal here NEMA 15 15 Plug As Recommended 42 0668 20 Vertical Metal Cutting Bandsaw Inverter Wiring Diagram M J Figure 53 Digital display wiring COLOR KEY Black Red White 0 Blue f Green Yellow Figure 54 Variable speed dial wiring To Motor see Photo amp Wiring Diagram on Page 45 7771 Page 44 Wiring To Electrical Panel eer L see Figure 57 on i 6 Wt ES Bk 6060066606606066 606006 6666 X5 Le DAM AM lin Vin Ta2 FWD REV COM Y2 GND 12V Tel Tai M RM5G 2002 2 HP 220V 3 PH Diagram on Page 42 SHOCK HAZARD Disconnect power before working on wiring Inverter see Figure 56 on Page 44 10668 20 Vertical Metal Cutting Bandsaw 43 Electrical Components OUND CONTROLLER OR Power Switch Bandsaw Start Figure 55 Control panel wiring see wiring Figure 56 Inverter Controller box wiring see diagram on Page 42 wiring diagram on Page 43 wee TS BELT Wi Y amp y EW 4 2 Lu
44. he wheel the wheel alignment may need to be adjust ed Refer to Wheel Alignment on Page 38 for detailed instructions Re tension the blade refer to Blade Tensioning on Page 25 Check the upper and lower blade guides for proper clearance refer to Adjusting Blade Guides on Page 26 Note Generally if the replacement blade is the same gauge width and type blade guide adjustment is not necessary Otherwise you must re adjust the blade guides Close and secure the upper and lower wheel doors 0668 20 Vertical Metal Cutting Bandsaw Blade Tensioning Proper blade tension reduces the risk of blade breakage and improves cutting performance To correctly tension the blade 1 DISCONNECT BANDSAW FROM POWER 2 Open the upper wheel door and raise the blade post and upper blade guide assembly to the highest position 3 Check the side to side deflection of the blade midway between the upper blade guide and the table The proper amount of deflection should be approximately when moderate pressure is applied see Figure 18 Note The quickest and easiest way to check blade tension is to use the Model H5408 Blade Tensioning Gauge for a recommend ed setting of 25 000 30 000 PSI refer to Page 31 Approximately Blade Deflection Figure 18 Blade deflection when correctly tensioned 4 Make small adjustments to the blade tension ing handwheel then rotate the top wheel by hand several times before ch
45. hine ON Verify that the machine is operating cor rectly When operating correctly the machine runs smoothly with little or no vibration or rubbing noises Investigate and correct strange or unusual noises or vibrations before operating the machine further Always disconnect the machine from power when investigating or correcting potential problems Verify that the motor is running in the correct direction When the motor is running in the correct direction the blade will be moving down into the table f the motor is NOT running in the correct direction stop the machine disconnect the machine from power and switch any two incoming power leads inside the motor wir ing junction box refer to the Motor Wiring Diagram on Page 45 for detailed illustra tions 0668 20 Vertical Metal Cutting Bandsaw 10 Press the Emergency Stop button to stop the machine 11 WITHOUT resetting the switch press the Start button The machine should not start machine does not start the Emergency Stop button safety feature is working cor rectly lf the machine does start with the stop button pushed in immediately disconnect power to the machine The Emergency Stop button safety feature is not working correctly This safety feature must work properly before proceeding with regular operations Call Tech Support for help 12 Reset the Emergency Stop button by twisting it clockwise until it pops out
46. ical Metal Cutting Bandsaw 9 50 REF 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 324 1 10668 20 Vertical Metal Cutting Bandsaw Welding Station Parts List PART DESCRIPTION PB96 HEX BOLT 1 4 20 X 4 REF PART 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 9 DESCRIPTION P0668325 ON OFF SWITCH 51 REF PART 501 502 503 504 505 506 507 508 509 510 511 512 513 52 Guide Post 509 IM MMM NN 508 N MW 507 506 NS A AN gt 505 DESCRIPTION PSBO2M CAP SCREW 6 1 X 20 REF PART 514 515 516 517 518 519 520 521 522 523 524 525 9 512 510 DESCRIPTION P0668514 GUIDE POST PINION GEAR 0668 20 Vertical Metal Cutting Bandsaw Upper Wheel 615 1 614 613 REF PART DESCRIPTION 603 0668603 WHEEL UPPER 604 605 606 607 608 609 0668605 610 6n 612 613 614 10668 20 Vertical Metal Cutting Bandsaw PWO1M FLAT WASHER 8MM 9 REF 615 615 1 616 617 618 619 620 621 622 623 624 620 621 618 Que 617 PART P0668615 UPPER WHEEL BRACKET DESCRIPTION 53 Labels 405 406 407 408 412 403 spe 401 90668 b 409 41
47. igure 38 Figure 38 Lower wheel chip pan 0668 20 Vertical Metal Cutting Bandsaw Redressing Rubber Tires As the bandsaw ages the rubber tires on the wheel may need to be redressed if they become hardened or glazed over Redressing the rubber tires improves blade tracking and reduces vibra tion blade lead If the rubber tires become too worn then blade tracking will become extremely difficult At that point redressing will no longer be effective and the rubber tires must be replaced To redress the rubber tires 1 DISCONNECT BANDSAW FROM POWER 2 Put on heavy gloves and remove the blade 3 Use a brush and shop vacuum to clean any chips and built up oil or sludge from the rub ber tires 4 Hold a piece of 100 grit sandpaper against the rubber tire and rotate the wheel by hand Only redress the rubber enough to expose a fresh rubber surface Lubrication The bearings on your bandsaw are factory lubri cated and sealed Merely leave them alone unless they need to be replaced Before lubricating the tension leadscrew or guide post rack wipe as much of the old grease off as possible The old grease will be contaminated with metal dust and increase the wear of the metal sur faces Use mineral spirits or the degreaser shown in Figure 4 on Page 12 to clean any remaining grease off making sure to thoroughly wipe off the degreaser or mineral spirits that may contaminate the new grease 10668 20 Vertical Me
48. ing conditions and take the neces sary precautions e Small or Thin Workpieces Small or thin workpieces are dangerous to cut if held by hand avoid cutting these workpieces if possible If you must cut a small or thin workpiece attach it to or clamp it between larger scrap pieces that will both support the workpiece through the cut and keep your fin gers away from the blade Some thin sheet metals will not withstand the forces from this bandsaw during cutting instead use a shear nibblers or sheet metal nippers to cut these pieces e Round Unstable Workpieces Workpieces that cannot be properly supported or stabi lized without a vise or jig should not be cut on a vertical metal cutting bandsaw Examples are chains cables round or oblong shaped workpieces workpieces with internal or built in moving or rotating parts etc Material Hardness Always factor in the hard ness of the metal before cutting it Hardened metals will take longer to cut may require lubrication and may require a different type of blade in order to efficiently cut them e Tanks Cylinders Containers Valves Etc Cutting into containers that are pressur ized or contain gasses or liquids can cause explosions fires caustic burns or machine damage Avoid cutting any of these types of containers unless you have verified that the container is empty and it can be properly sup ported during a cut e Magnesium Pure magnesium burns eas ily Cut
49. l Appearance Description Color Speed Pressure Actions Hard Thick amp Lubricate with Hard Strong amp Lubricate with Hard Strong amp Silver or Light Decrease Check Blade Thick Brown Slightly Pitch Hard amp Thin Silver Increase Decrease Check Blade Pitch Curled Tight amp Check Blade Figure 16 Chip inspection chart 10668 20 Vertical Metal Cutting Bandsaw 9 23 Blade Changes AWARNING Always disconnect power to the machine when changing blades Failure to do this may result in serious personal injury 6 To replace the blade 1 DISCONNECT BANDSAW FROM POWER 2 Open the upper and lower wheel doors 3 Release the blade tension by rotating the tensioning handwheel 7 4 Put on heavy leather gloves then slide the blade off the upper and lower wheels around 8 the blade post and through the table slit 5 Install a new blade in reverse order see Figure 17 9 Note Make sure the teeth are pointing down toward the table If the teeth will not point downward in any orientation the blade is inside out Remove the blade and twist it right side out 24 A CAUTION All saw blades are dan gerous and may cause personal injury To reduce the risk of being injured wear heavy leather gloves when han dling saw blades Rotate the top wheel by hand several times to make sure the blade tracks evenly without wandering across the wheel surface Note f the blade wanders across t
50. lding station wiring Dod m To Electrical Panel 1 see Page 42 COLOR KEY Black eR Red emm White Gray Green Yellow m 0668 20 Vertical Metal Cutting Bandsaw REF PART 10668 20 Vertical Metal Cutting Bandsaw SECTION 8 PARTS Cabinet DESCRIPTION P0668001 WHEEL DOOR LOWER REF PART DESCRIPTION 17 0668017 AIR NOZZLE 18 WORK LAMP 220V 18 1 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 9 47 Table amp Lower Guide 116 105 104 103 102 101 lt REF PART DESCRIPTION 101 PSBO2M CAP SCREW M6 1 X 20 102 103 104 105 106 107 108 109 48 REF PART 110 111 112 113 114 115 116 117 9 117 DESCRIPTION PWO1M FLAT WASHER 8MM P0668115 TRUNNION P0668116 TABLE TILT LOCK 5 8 11 X 2 P0668117 TABLE 0668 20 Vertical Metal Cutting Bandsaw 201 REF PART 201 202 203 204 205 206 207 208 209 210 211 10668 20 Vertical Metal Cutting Bandsaw 202 UN SIN Cy Motor amp Lower Wheel 204 DESCRIPTION P0668201 WHEEL TIRE REF 212 213 214 215 216 217 218 219 219 1 219 2 219 3 9 PART DESCRIPTION P0668212 BEARING HOUSING 49 Welding Station vce 055 815 21 ELE 0668 20 Vert
51. ly PROP ess 16 Cutting Overview 16 Guling 17 Workpiece Inspection 17 Basic COnlrolS usce retos pa UR 18 Blade Selection 19 Blade Breakage 22 Blade Care amp Break In 22 Chip Inspection 23 Blade Changes 24 Blade Tensiohiltt 2 82 25 G ide POST hu 25 Adjusting Blade Guides amp Support 26 Adjusting Table Til ones 27 Blade Welding 28 SECTION 5 ACCESSORIES 31 SECTION 6 MAINTENANCE 32 semp 32 32 Redressing Rubber 33 IC 33 SECTION 7 SERVICE euren 34 Troubleshooting 34 Lower Wheel Pulley 36 Tensioning V Belts 36 Replacing V Belts 37 Adjusting Wheel Brush 37 WheelL AlgNMent se 38 Aligning Table to Blade 40 Blade GUidES eee epee ree 41 Electrical amp Control Wiring Diagram 42 Inverter Wiring Diagram
52. may damage electrical components if connected to the wrong incoming power terminal on your machine Only connect the manufactured leg to the S terminal see the Electrical amp Control Wiring Diagram on Page 42 for identification 0668 20 Vertical Metal Cutting Bandsaw SECTION 3 SETUP Setup Safety AWARNING This machine presents serious injury hazards to untrained users Read through this entire manu al to become familiar with the controls and opera tions before starting the machine AWARNING Wear safety glasses or a face shield during the entire setup process AWARNING This bandsaw isa heavy machine Serious sonal injury may occur if safe moving methods are not used To be safe get assistance and use power equipment rated for over 1500 Ibs to move the ship ping crate and remove the machine from the crate 10668 20 Vertical Metal Cutting Bandsaw 9 Items Needed for Setup The following items are needed to complete the setup process but are not included with your machine Description Qty e aaa 2 e Safety Glasses for each person 1 e Lifting Straps rated for 1500 Ibs M 2 Or More e Forklift rated for 1500 lbs 1 e Floor Mounting Hardware As Needed Unpacking Your machine was carefully packaged for safe transportation Remove the packaging materials from around your machin
53. nment refer to Page 36 2 Tensioning V belts refer to Page 36 NOTICE After the first 16 hours of operation new V belts will stretch and seat farther into the pulleys To avoid slippage re tension new V belts after this period 3 Wheel alignment refer to Page 38 4 Table alignment relative to the blade refer to Page 40 15 SECTION 4 OPERATIONS Operation Safety AWARNING To reduce the risk of serious injury when using this machine read and understand this entire manual before beginning any operations AWARNING Damage to your eyes lungs and ears could result from using this machine without proper protective gear Always wear safety glasses a respirator and hearing protection when operating this machine AWARNING Loose hair clothing or jewelry could get caught in machinery and cause serious personal injury Keep these items away from moving parts at all times to reduce this risk NOTICE If you have never used this type of machine or equipment before WE STRONGLY REC OMMEND that you read books trade maga zines or get formal training before begin ning any projects Regardless of the con tent in this section Grizzly Industrial will not be held liable for accidents caused by lack of training 16 9 Cutting Overview The vertical metal cutting bandsaw has a flexible continuous blade that cuts in one direction The type of bandsaw blade and the spee
54. oad Refer to the Machine Data Sheet on Page 3 for the weight and footprint specifications of your machine Some floors may require additional reinforcement to support both the machine and operator Placement Location Consider existing and anticipated needs size of material to be processed through each machine and space for auxiliary stands work tables or other machinery when establishing a location for your new machine See Figure 5 for the minimum working clearances Figure 5 Minimum working clearances top view 0668 20 Vertical Metal Cutting Bandsaw Mounting to Shop Floor The bandsaw center of gravity is above the middle of the machine Although not required we strong ly recommend that you mount your new machine to the floor to prevent tipping Because this is an optional step and floor materials may vary floor mounting hardware is not included Bolting to Concrete Floors Anchor studs and lag bolts Figure 6 are two popular methods for anchoring an object to a con crete floor We suggest you research the many options and methods for mounting your machine and choose the best that fits your specific applica tion NOTICE Anchor studs are stronger and more perma nent alternatives to lag bolts however they will stick out of the floor which may cause a tripping hazard if you decide to move your machine Anchor Stud Lag Anchor amp Bolt
55. on has left the blade joint brittle Annealing will allow the material to cool in gradual manner giving the weld strength and flexibility Rapidly press and release DO NOT hold the annealing button two or three times until the weld zone turns dull red Repeat Step 14 three to four more times allowing the weld to cool for about 30 sec onds between each repetition 9 16 17 18 Allow the blade to fully cool then re inspect the weld Grind away the weld flash on either side of the joint and the back of the blade until the weld is flat and the blade will run smoothly on the wheels Note Make sure not to grind the teeth or blade body or overheat the blade during grinding this will weaken the blade Re clamp the blade in the welding clamps with the joint centered then repeat Step 14 twice more Test the strength and flexibility of the weld by bending the blade in an arc similar to that of the bandsaw wheels The blade should bend smoothly without any angles see Figure 33 Correct Not Correct Figure 33 Correct blade weld bend for strength and flexibility NOTICE For good metal to metal contact between the welding clamps and the blade make sure the blade material and the clamps are free from any debris or flash before each use 0668 20 Vertical Metal Cutting Bandsaw SECTION 5 ACCESSORIES T20501 Face Shield 4 Crown Clear T20502 Face Shield 7 Crown Clear T20
56. ooth the widest point blade width is often the first consideration given to blade selec tion Blade width dictates the largest and smallest curve that can be cut as well as how accurately it can cut a straight line generally the wider the blade the straighter it will cut Always pick the blade width that best suits your operation G0668 Blade Width Range Ve A Curve Cutting Use the chart in Figure 12 to choose the correct blade for curve cutting Determine the smallest radius curve that will be cut on your workpiece and use the corresponding blade width The list below shows the minimum radius that can be cut by common blade widths Figure 12 Blade width radii 219 Tooth Set Three common tooth sets are standard wavy and raker see Figure 13 each removing mate rial in a different manner to make the kerf in the workpiece igure 13 Bandsaw tooth sets Alternate An all purpose arrangement of bend ing the teeth evenly left and right of the blade Generally used for milder metals Wavy Generally three or more teeth in a group that are bent one way followed by a non set tooth then another group bent the other way Recommended for straight cuts in thin metals or thin wall tubing Raker Three teeth in a recurring group one bent left next one bent right and then a non set tooth The raker is ideal for most contour cuts 20 To
57. oth The most common tooth types are described below and illustrated in Figure 14 Standard or Raker Equally spaced teeth set a 0 rake angle Recommended for all purpose use Standard or Raker Variable Pitch VP Variable Pitch Positive Rake Hook or Claw Skip or Skip Tooth Figure 14 Bandsaw blade tooth types Variable Pitch VP Varying gullet depth and tooth spacing a rake angle excellent chip removing capacity and smooth cutting Variable Pitch with Positive Rake Varying gul let depth and tooth spacing a positive rake angle better chip formation and aggressive cutting Hook or Claw Wide gullets round or flat equal ly spaced teeth positive rake angle and fast cut with good surface finish Skip or Skip Tooth Wide flat gullets a O rake angle equally spaced teeth and recommended for non ferrous materials 0668 20 Vertical Metal Cutting Bandsaw Blade Pitch 3 The chart below is a basic starting point for choosing teeth per inch TPI for variable tooth pitch blades and standard raker set bi metal 2 blades HSS blades However for exact specifica tions of bandsaw blades that are correct for your operation contact the blade manufacturer To select the correct blade pitch 5 1 Measure the material thickness This mea surement is the length of cut taken from where the tooth enters the workpiece sweeps through and exits the workpiece 2 Refer
58. oven and a Great Value Visit Our Website Today And Discover Why Grizzly Is The Industry Leader e SECURE ORDERING ORDERS SHIPPED WITHIN 24 HOURS E MAIL RESPONSE WITHIN ONE HOUR Call Today ForA FREE Full Color Catalog Es
59. place the V belts 1 DISCONNECT BANDSAW FROM POWER 2 Remove the rear motor access panel 3 Make sure the motor and lower wheel pulleys are correctly aligned 4 Push the center of each V belt as illustrated in Figure 42 using moderate force When tensioned correctly the deflection should be about 3 4 Deflection Figure 42 Checking for correct V belt tension lf the deflection is correct and the V belts are in good condition no further action is required Replace the rear motor access panel lf the deflection is more than or less than 94 or the V belts need to be replaced then continue with the next steps 0668 20 Vertical Metal Cutting Bandsaw 5 Loosen the four motor mounting hex bolts see Figure 43 Ve Motor Mounting Hex Bolts 8 of 4 shown Figure 43 Motor mounting hex bolts 6 Position the motor to adjust the V belt tension until they have the correct deflection then re tighten the hex bolts Replacing V Belts Tools Needed Wrench TAM Mes 1 Replace the V belts as matched set if they are cracked frayed or excessively worn To replace the motor V belts 1 DISCONNECT BANDSAW FROM POWER 2 Loosen the four motor mounting hex bolts see Figure 43 3 Move the motor toward the lower wheel to relieve the tension then roll the V belts off the pulleys 4 Install a new matched set of V belts onto the pulleys then correc
60. planarity Gauge shown in Figure 45 Note For best results straighten the 2x4 with a jointer before cutting 2 DISCONNECT BANDSAW FROM POWER 3 Remove the table assembly then open both wheel covers 4 Move the upper and lower blade guides and rear support away from the blade then cor rectly tension the blade for normal opera tions 5 Place your coplanarity gauge up against both wheels in the positions shown in Figure 46 making sure that the gauge fully extends across the wheels f the wheels are parallel and coplaner in the same plane the gauge will evenly touch the top and bottom of both wheels and no further adjustments are necessary lf the wheels are NOT parallel or coplanar continue with the following steps to bring both wheels into correct alignment with one another 38 Side View Figure 45 Dimensions of coplanarity gauge Coplanarit Gauge Positions Figure 46 Coplanarity gauge positions 0668 20 Vertical Metal Cutting Bandsaw Although both wheels can be adjusted to accom plish correct wheel alignment we recommend that you start with the upper wheel and if necessary continue the adjustments with the lower wheel When both wheels are correctly aligned with one another re check V belt tension Page 36 re install the table re check table alignment Page 40 and re adjust the blade guides and sup ports The upper wheel
61. tal Cutting Bandsaw When the leadscrew and rack are thoroughly clean and dry brush a light coat of automotive grade multi purpose grease on the tension leadscrew and guide post rack to maintain smooth operation see Figure 39 Tension 7 Leadscrew Figure 39 Tension leadscrew and guide post rack If the table becomes difficult to tilt position it so that you use the same process described above to clean the metal surfaces of the trunnion and table Then brush a thin coat of automotive grade multi purpose grease on the trunnion surfaces see Figure 40 Tilt the table back and forth to distribute the grease es Trunnion Surfaces Figure 40 Table tilted to expose trunnion surfaces 335 SECTION 7 SERVICE Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel ops If you need replacement parts or you are unsure of your repair skills then feel free to call our Technical Support at 570 546 9663 Troubleshooting Motor amp Electrical Possible Cause Possible Solution Machine does not Power switch key is removed or not in ON 1 Install power switch key and turn it to the ON posi start or a breaker trips Machine stalls or is overloaded 34 position Emergency stop push button is engaged 2 faulty Plug receptacle is at fault or wired incor rectly Motor connection wired incorrectly Wall fuse circuit breaker is blown
62. the correct setting for the blade Blade Width Pressure e Up to 1 4 to vs o Figure 31 Blade clamping pressure chart AWARNING Burning sparks from the blade welding oper ation may be thrown in all directions and could cause serious personal injury or fire When using the blade welder always protect yourself from the flying sparks and have fire extinguishing equipment readily available DO NOT weld near flammables 9 Press and release DO NOT hold the weld ing button Note There is a limit switch that senses the electrical resistance between the blade ends If there is a adequate amount of welded mate rial the limit switch will not allow the welding button to activate the operation again 29 10 11 12 13 14 15 s After the welding operation is complete rotate the lock levers down to release the welding clamps then rotate the clamping pressure dial to O Inspect the weld The welded joint should be even across the width of the blade with no gaps see Figure 32 Figure 32 Blade welded joint examples the weld is satisfactory continue to Step 12 f the weld is NOT satisfactory begin again at Step 2 Set the clamping pressure dial to 4 or greater to bring the welding clamps close together Place the blade in the welding clamps with the weld centered between the clamps and re tighten the lock levers Note The welding operati
63. ting magnesium with a dull blade can create enough friction to ignite the small magnesium chips Avoid cutting magnesium if possible 17 Basic Controls Use the descriptions and Figures 9 10 below to become familiar with the basic controls of your bandsaw Blade Welding Station Power Switch i Emergency Stop Button ES Start Button Blade Post Lock Knob Blade Guide Elevation Handwheel Blade Tensioning Handwheel Figure 10 Blade controls 18 Digital Speed Display Shows blade speed in feet per minute FPM Variable Speed Dial Adjusts the blade speed between 105 2102 Blade Welding Station Welds two blade ends to make a continuous loop when repairing a broken blade fabricating a new blade or making internal cuts Power Switch The main power switch for the entire machine Power Lamp Lights when the Power Switch is turned ON and there is power to the machine Start Button Turns the bandsaw motor ON Emergency Stop Button Turns the bandsaw motor OFF Blade Post Lock Knob Secures the blade post and upper blade guide assembly in position Blade Guide Elevation Handwheel Raises low ers the blade post and upper blade guide assem bly when rotated Blade Tensioning Handwheel Increases decreases blade tension when rotated AWARNING The bandsaw blade is sharp and can easily cut your hand or fingers Always disconn
64. tly tension them as described on Page 36 5 Secure the motor access panel to the machine before re connecting it to power 10668 20 Vertical Metal Cutting Bandsaw 9 Adjusting Wheel Brush Tools Needed Wrench 1 The lower wheel compartment contains the wheel brush shown in Figure 44 This brush is designed to sweep chips off the wheel tire as the bandsaw is operating In order to work properly the brush must make firm contact with the wheel Wheel Brush Figure 44 The wheel brush To adjust the wheel brush 1 DISCONNECT BANDSAW FROM POWER 2 Open the lower wheel cover 3 Loosen the hex bolt that secures the wheel brush 4 Adjust the wheel brush so that it makes firm contact with the wheel but the bristles are not overly bent 5 Re tighten the hex bolt to secure the wheel brush in place and close the lower wheel door 297 Wheel Alignment Materials Needed Qty Bru Bong 1 Tools Needed Qty Wrench 12 1 Wrench 7MM saa coii tetris 1 Wrench 21 1 Coplanarity Gauge see Figure 45 1 Wheel alignment is one of the most critical factors for optimal performance from your bandsaw Heat vibration wandering blade wear tire wear and overal bandsaw wear are considerably decreased when the wheels are properly aligned or coplanar To check if your wheels are parallel and copla nar 1 Make the Co
65. to approximately above the workpiece to provide proper support for the blade during cutting operations e Replace sharpen and clean blades as nec essary Make adjustments periodically to keep the saw running in top condition e Use light and even pressure while cutting Light contact with the blade makes it easier to follow lines and prevents extra friction e Avoid twisting the blade when cutting around tight corners Use the proper width of blade for the radius of the corner and make relief cuts e Misusing the bandsaw or using incorrect techniques is unsafe and results in poor cuts Remember the blade does the cutting with the operator s guidance e Never start a cut with the blade in contact with the workpiece and do not start a cut on a sharp edge of the workpiece attention to the characteristics of the chips when cutting they are good indica tors of proper blade speed and feed rate Figure 16 on Page 23 shows the basic chip characteristics and what they mean AWARNING ELECTROCUTION HAZARD This bandsaw is not designed to be used with water soluble cutting fluid or coolant If needed use a small amount of oil based lubricant 10668 20 Vertical Metal Cutting Bandsaw Workpiece Inspection Some metal workpieces are not safe to cut with a vertical metal cutting bandsaw instead a differ ent tool or machine should be used Before cutting inspect the material for any of the follow

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