READ THIS FIRST Model G0668 ***IMPORTANT UPDATE*** For Machines Mfd. Since 08/18 and Owner's Manual Revised 02/08 For questions or help with this product contact Tech Support at (570) 546-9663 or [email protected] The following changes were recently made since the owner's manual was printed: • Added lower blade guard. Aside from this information, all other content in the owner's manual applies and MUST be read and understood for your own safety. IMPORTANT: Keep this update with the owner's manual for future reference. For questions or help, contact our Tech Support at (570) 546-9663 or [email protected] New Parts 36 37 38 REF PART # DESCRIPTION 36 37 38 LOWER BLADE GUARD SET PHLP HD SCR M6-1 X 10 FLAT WASHER 6MM P0668036 P0668037 P0668038 COPYRIGHT © MAY, 2019 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. #JL20398 PRINTED IN TAIWAN READ THIS FIRST Model G0668 ***IMPORTANT UPDATE*** For Machines Mfd. Since June, 2008 and Owner's Manual Printed February, 2008 For questions or help with this product contact Tech Support at (570) 546-9663 or [email protected] We recently made the following changes to the Model G0668: • • • • Revised electrical & control panel wiring diagram and photos. Revised welding station wiring diagram. Changed transformer manufacturer. Revised electrical parts. Aside from the information contained in this update, all other content in the owner's manual applies to this machine. For your own safety, you MUST read and understand this update and the applicable owner's manual. Keep this update for future reference! If you have any further questions about this manual update or the changes made to the machine, contact our Technical Support at (570) 546-9663 or email [email protected] Revised Electrical Parts 348V2 347V2 30V2 32-1V2 32V2 4-1V2 4-2V2 4-4V2 4-3V2 REF PART # DESCRIPTION 4-1V2 4-2V2 4-3V2 4-4V2 30V2 32V2 32-1V2 347V2 348V2 P0668004-1V2 P0668004-2V2 P0668004-3V2 P0668004-4V2 P0668030V2 P0668032V2 P0668032-1V2 P0668347V2 P0668348V2 POWER SWITCH W/KEY NHD CB-10 V2.06.08 POWER LAMP NHD-22 V2.06.08 E-STOP BUTTON NHD CB-01 V2.06.08 MOTOR ON BUTTON NHD CB-10 V2.06.08 TRANSFORMER YJ A174-0055 V2.01.13 RELAY STON MY4S 24V 3-5A V2.01.13 RELAY HOLDER STON PYF14AE V2.01.13 ANNEALING PUSH BUTTON V2.06.08 WELDING PUSH BUTTON V2.06.08 COPYRIGHT © MAY, 2017 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. #MN18905 PRINTED IN TAIWAN Rd Rd Control Panel (see Figure 4 on Page 5) Rd 1 Power Lamp Rd NHD-22 NHD CB-10 24V Power Switch Revised Electrical & Control Panel Wiring Diagram 440V 220V 0V 0V 12V 0 24V Emergency Stop Button 24V 2 2 3 1 NHD CB-10 NHD CB-01 Start Button 415V T2 R2 Grnd 1 0V Transformer YJ A174-0055 380V 0V 220V 0 COLOR KEY Black White Green Red Yel/Grn 0V 12 0 1 U Bk Wt Gn Rd Yg 3L/2 2 A2 5L/3 2T/1 4T/2 6T/3 U V W R T Fuse 3A 1L/1 T 13NO NHD C120 24V S Contactor R A1 Fuse 3A V 8 7 6 5 Relay Arita MY4S 24V 3-5A 11 12 11 9 10 R1 14NO 3 A2 14 S1 T2 13 0 To Welding Station (see Photo & Wiring Diagram on Page 46) R2 0 3 Ground U R V Bk W S T S T R R S T Grnd U Bk V W W Bk Bk Bk R1 S1 U V S1 R1 Connect the manufactured leg of a power converter to the "S" terminal here. -2- Bk R3 S3 R3 Bk To Inverter (see Wiring Diagram on Page 43) S3 Bk Bk Bk Bk To Motor Fan (see Photo & Wiring Diagram on Page 45) Wt 220V 3-Phase Power Hot Ground G Hot X Z W Hot NEMA 15-15 Plug (As Recommended) G0668 Update (Mfd. Since 06/08) Right Welding Clamp Welding Button COM COM NO NO NC Left Welding Clamp NC LIMIT SWITCH NC NO COM Annealing Button Revised Welding Station Wiring Diagram Bk Yl Yl Yl 1 Bk 1 2 3 4 5 6 Figure 1. Welding station wiring. Yl Bk Bk S1 R1 To Electrical Panel (see Page 2) 220V Transformer Start Capacitor 3MFD 250VAC NO Gy Grinder Motor 4 FFO Grinder Switch 6 COLOR KEY Gn 2 1 3 5 Black Bk White Wt Green Gn Blue G0668 Update (Mfd. Since 06/08) Red Gray Yellow Rd Gy Yl Bu -3- Revised Inverter Wiring Diagram COLOR KEY Black TSAF Bk White Wt Green Gn Red Blue Yellow Rd Bu Yl WOLS Figure 54. Variable speed dial wiring. Wt Rd Bk To Motor (see Photo & Wiring Diagram on Page 45) Gn Rd W Wt V Bk Bk U T Wt S Wt Rd Bk 11 12 Vin COM X5 X6 X2 X4 Y1 AM+ Iin FWD REV C0M X1 X3 CME Y2 FM+ GND 12V Tb1 Ta2 Tc1 Ta1 Tc2 Rd R To Electrical Panel (see Figure 57 on Page 44, Wiring Diagram on Page 42) RM5G-2002 2 HP 220V 3-PH Inverter (see Figure 56 on Page 44) -4- G0668 Update (Mfd. Since 06/08) Revised Electrical Components New Figure 2. Main electrical wiring with new transformer. G0668 Update (Mfd. Since 06/08) Old Figure 3. Main electrical wiring with old transformer. -5- Revised Electrical Components (Cont.) New Figure 4. New control panel wiring. Old Figure 5. Old control panel wiring. Figure 6. New annealing and welding buttons. -6- G0668 Update (Mfd. Since 06/08) READ THIS FIRST Model G0668 ***IMPORTANT UPDATE*** For Machines Mfd. Since 12/14 and Owner's Manual Printed 02/08 For questions or help with this product contact Tech Support at (570) 546-9663 or [email protected] The following change was recently made to this machine since the owner's manual was printed: • Redesigned guide post elevation handwheel, bracket, worm gear, and added a ball bearing. Aside from this information, all other content in the owner's manual applies and MUST be read and understood for your own safety. IMPORTANT: Keep this update with the owner's manual for future reference. For questions or help, contact our Tech Support at (570) 546-9663 or [email protected] New/Revised Parts 515V2 526 518V2 520V2 REF PART # DESCRIPTION 515V2 518V2 520V2 526 P0668515V2 P0668518V2 P0668520V2 P0668526 WORM GEAR W/9MM SHAFT V2.12.14 HANDWHEEL W/9MM BORE V2.12.14 BRACKET W/9MM BORE V2.12.14 BALL BEARING 609ZZ Note: If replacing older V1 parts with V2 parts, you must replace the worm gear, bearing, bracket, and handwheel as a set. COPYRIGHT © JANUARY, 2015 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. #BL17101 PRINTED IN TAIWAN READ THIS FIRST Model G0668 ***IMPORTANT UPDATE*** For Machines Mfg. Since February, 2013 and Owner's Manual Printed February, 2008 The following change was made to this machine since the owner's manual was printed: •The blade shear was improved to a more heavy-duty version (see Figure 1). This document provides an update to a portion of the owner's manual that no longer applies—aside from this information, all other content in the owner's manual applies and MUST be read and understood for your own safety. IMPORTANT: Keep this update with the owner's manual for future reference. For questions or help, contact our Tech Support at (570) 546-9663 or [email protected] Changed Parts 11V2 Blade Shear 12V2 Figure 1. Heavy-duty blade shear. REF PART # DESCRIPTION 11V2 PB06M 12V2 P8144Z012V2 HEX BOLT M8-1.25 X 12 BLADE SHEAR V2.02.13 Copyright © FEBRUARY, 2013 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. #TS15611 printed in Taiwan Model G0668 ***IMPORTANT UPDATE*** Applies to Models Mfg. Since 10/11 and Owner's Manual February, 2008 We recently made the following changes to the Model G0668: •Electrical & Control Panel Wiring Diagram (Page 42). • Inverter Wiring Diagram (Page 43). • Welding Station Wiring Diagram (Page 46). • Variable speed dial wiring image (Page 43, Figure 54). • Inverter/Controller box wiring image (Page 44, Figure 56). • Main electrical wiring image (Page 44, Figure 57). • Welding station wiring image (Page 46, Figure 59). • Cabinet parts breakdown and parts list (Page 47). Aside from the information contained in this update, all other content in the owner's manual applies to this machine. For your own safety, you MUST read and understand this update and the applicable owner's manual. Keep this update for future reference! If you have any further questions about this manual update or the changes made to the machine, contact our Technical Support at (570) 546-9663 or email [email protected] Copyright © JANUARY, 2012 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. #ST14254 printed in Taiwan Rd Rd Rd Control Panel (see Figure 55 on Page 44) Rd 1 Power Lamp Electrical Panel (see Figure 57 on Page 44) 22 21 14 13 24V Power Switch Revised Electrical & Control Panel Wiring Diagram R2 24V 220V 0V 24V 12V 0 Grnd Emergency Stop Button T2 2 2 1 3 22 21 13 14 14 13 21 22 Start Button 440V 415V 1 0V Transformer 1-PH 0-3VA 380V 0V 220V 0 COLOR KEY Black White Green Red Yel/Grn 0V 12 0 1 U Bk Wt Gn Rd Yg 3L/2 2 A2 5L/3 2T/1 4T/2 6T/3 U V W R T Fuse 3A 1L/1 T 13NO NHD C120 24V S Contactor R A1 Fuse 3A V 8 7 6 5 Relay Arita MY4S 24V 3-5A 11 12 11 9 10 R1 14NO 3 A2 14 S1 T2 13 0 R2 0 3 Ground U R V Bk W R S T S T R S T Grnd U Bk V W W Bk Bk Bk R1 S1 U V S1 R1 Connect the manufactured leg of a power converter to the "S" terminal here. -2- Bk To Welding Station (see Photo & Wiring Diagram on Page 46) R3 S3 R3 Bk To Inverter (see Wiring Diagram on Page 43) S3 Bk Bk Bk Bk To Motor Fan (see Photo & Wiring Diagram on Page 45) Bk 220V 3-Phase Power Hot Ground G Hot X Z W Hot NEMA 15-15 Plug (As Recommended) G0668 Update (Mfg. Since 10/11) Revised Inverter Wiring Diagram COLOR KEY Black TSAF Bk White Wt Green Gn Red Blue Yellow Rd Bu Yl WOLS Figure 54. Variable speed dial wiring. Wt Rd Bk To Motor (see Photo & Wiring Diagram on Page 45) Gn Rd W Wt V Bk Bk U T Wt S Wt Rd Bk 11 12 Vin COM X5 X6 X2 X4 Y1 AM+ Iin FWD REV C0M X1 X3 CME Y2 FM+ GND 12V Tb1 Ta2 Tc1 Ta1 Tc2 Rd R To Electrical Panel (see Figure 57 on Page 44, Wiring Diagram on Page 42) RM5G-2002 2 HP 220V 3-PH Inverter (see Figure 56 on Page 44) G0668 Update (Mfg. Since 10/11) -3- Electrical Components Figure 56. Inverter/Controller box wiring (see wiring diagram on Page 43). Figure 57. Main electrical wiring (see wiring diagram on Page 42). -4- G0668 Update (Mfg. Since 10/11) Right Welding Clamp Welding Button 1 1 4 4 2 Left Welding Clamp 2 Sensor NC NO COM Annealing Button Welding Station Wiring Diagram Bk Yl Yl Yl 1 Bk 1 2 3 4 5 6 Figure 59. Welding station wiring. Yl Bk Bk S1 R1 To Electrical Panel (see Page 42) 220V Transformer Start Capacitor 3MFD 250VAC NO Gy Grinder Motor FFO 4 Grinder Switch 6 COLOR KEY Gn 2 1 3 5 Black Bk White Wt Green Gn Blue G0668 Update (Mfg. Since 10/11) Red Gray Yellow Rd Gy Yl Bu -5- SECTION 8: PARTS 30 29 31 35 Cabinet 32-1V2 14 32V2 11 33 34 16 8 18 12 18-1 10 15 9 17 21 13 22 19 24 20 4 4-1 25 7 4-2 4-4 3 2 5 4-3 23 6 19 27 20 26 28 KEYPAD MPM RPM T.S PROG 1 RUN FUN STOP DATA RESET REF PART # DESCRIPTION REF PART # DESCRIPTION 1 2 3 4 4-1 4-2 4-3 4-4 5 6 7 8 9 10 11 12 13 14 15 16 17 WHEEL DOOR LOWER HINGE PIN LOWER PHLP HD SCR M5-.8 X 8 CONTROL PANEL POWER SWITCH W/KEY POWER LAMP EMERGENCY STOP BUTTON MOTOR ON BUTTON BLADE CLEANING BRUSH PHLP HD SCR M6-1 X 25 WHEEL DOOR UPPER HINGE PIN UPPER PHLP HD SCR M5-.8 X 8 DIGITIAL DISPLAY BRACKET CAP SCREW M8-1.25 X 16 BLADE SHEAR VARIABLE SPEED DIAL AIR PUMP BANDSAW CABINET AIR HOSE 4X6MM AIR NOZZLE 18 18-1 19 20 21 22 23 24 25 26 27 28 29 30 31 32V2 32-1V2 33 34 35 P0668018 P0668018-1 P0668019 PS47M PSB28M PW03M P0668023 PW03M PB04M P0668026 P0668027 P0668028 P0668029 P0668030 P0668031 P0668032V2 P0668032-1V2 P0668033 P0668034 P0668035 WORK LAMP 220V LIGHT BULB 220V DOOR KNOB PHLP HD SCR M6-1 X 25 CAP SCREW M6-1 X 15 FLAT WASHER 6MM MOTOR ACCESS PANEL FLAT WASHER 6MM HEX BOLT M6-1 X 10 CHIP PAN DIGITAL DISPLAY INVERTER RM5G 2HP 220V 3PH CONTROL PANEL TRANSFORMER 1PH 0-3VA CONTACTOR NHD C120D 220V RELAY STON MY4S 24V 3-5A RELAY HOLDER STON PYF14AE FUSE HOLDER FUSE 3A TERMINAL BLOCK 11-POST -6- P0668001 P0668002 PS05M P0668004 P0668004-1 P0668004-2 P0668004-3 P0668004-4 P0668005 PS47M P0668007 P0668008 PS05M P0668010 PSB11M P0668012 P0668013 P0668014 P0668015 P0668016 P0668017 G0668 Update (Mfg. Since 10/11) 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 ����������������������������������������������������������������������� �������������������������������������������������������������� ���������������������������������������������������������������������� �������������������������������������������������������������������� ������������������������ ������������������������������������������������������������������ �������������������������������������������������������������������� ����������������������������������������������������������������� ���������������������������������������������������������������������� ��������������������������������������������������������������������� ����������������������������������������������������� ����������������������������������������������������������������������� �������������������������������������������������������������������� �������������������������������������������������������������������� �������������������������������������������������������������������� ������������������������������������������������������������������� ������������������������������������������� �� ���������������������������� �� ������������������������������������������������������������������ �� ���������������������������������������������������� ������������������������������������������������������������������ ������������������������������������������������������������������ �������������������������������������������������������������������� ��������������������������������������������������������������������� �������������������������� Table of Contents INTRODUCTION ............................................... 2 Foreword ........................................................ 2 Contact Info ................................................... 2 Machine Data Sheet ...................................... 3 Identification ................................................... 5 Control Panel Identification ............................ 6 SECTION 1: SAFETY ....................................... 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 ....................................... 11 Setup Safety ................................................ 11 Items Needed for Setup ............................... 11 Unpacking .................................................... 11 Clean Up ...................................................... 12 Site Considerations ...................................... 12 Mounting to Shop Floor ............................... 13 Moving & Placing ......................................... 13 Test Run ...................................................... 14 Recommended Adjustments ........................ 15 SECTION 4: OPERATIONS ........................... 16 Operation Safety .......................................... 16 Cutting Overview ......................................... 16 Cutting Tips .................................................. 17 Workpiece Inspection .................................. 17 Basic Controls .............................................. 18 Blade Selection ............................................ 19 Blade Breakage ........................................... 22 Blade Care & Break-In ................................. 22 Chip Inspection Chart .................................. 23 Blade Changes ............................................ 24 Blade Tensioning ......................................... 25 Guide Post ................................................... 25 Adjusting Blade Guides & Support .............. 26 Adjusting Table Tilt ...................................... 27 Blade Welding .............................................. 28 SECTION 5: ACCESSORIES ......................... 31 SECTION 6: MAINTENANCE......................... 32 Schedule ...................................................... 32 Cleaning ....................................................... 32 Redressing Rubber Tires ............................. 33 Lubrication ................................................... 33 SECTION 7: SERVICE ................................... 34 Troubleshooting ........................................... 34 Lower Wheel Pulley Alignment .................... 36 Tensioning V-Belts ....................................... 36 Replacing V-Belts ........................................ 37 Adjusting Wheel Brush ................................ 37 Wheel Alignment .......................................... 38 Aligning Table to Blade ................................ 40 Blade Guides ............................................... 41 Electrical & Control Wiring Diagram ............ 42 Inverter Wiring Diagram ............................... 43 Electrical Components ................................. 44 Motor Wiring Diagram .................................. 45 Welding Station Wiring Diagram .................. 46 SECTION 8: PARTS ....................................... 47 Cabinet......................................................... 47 Table & Lower Guide ................................... 48 Motor & Lower Wheel .................................. 49 Welding Station ............................................ 50 Guide Post ................................................... 52 Upper Wheel ................................................ 53 Labels .......................................................... 54 WARRANTY AND RETURNS ........................ 57 INTRODUCTION Foreword Contact Info We are proud to offer the Model G0668 20" Vertical Metal-Cutting Bandsaw. This machine is part of a growing Grizzly family of fine metalworking 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. If you have any comments regarding this manual, please write to us at the address below: The specifications, drawings, and photographs illustrated in this manual represent the Model G0668 when the manual was prepared. However, owing to Grizzly’s policy of continuous improvement, changes may be made at any time with no obligation on the part of Grizzly. We stand behind our machines. If you have any service questions or parts requests, please call or write us at the location listed below. 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- C Grizzly Industrial, Inc. /O Technical Documentation Manager P.O. Box 2069 Bellingham, WA 98227-2069 Email: [email protected] Grizzly Industrial, Inc. 1203 Lycoming Mall Circle Muncy, PA 17756 Phone: (570) 546-9663 Fax: (800) 438-5901 E-Mail: [email protected] Web Site: http://www.grizzly.com G0668 20" Vertical Metal-Cutting Bandsaw Machine Data Sheet ������������� ����� ������������������������������������������������������������������������������������������ ����������� ������������������� ������������������������������ ������������������� ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������� ��������� ������������������������������������������������������������������������������������������������������������������������������������������������������ ������������������������ 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Model G0668 identification. A. B. C. D. E. F. G. H. I. Blade Shear Upper Wheel Door Guide Post Elevation Handwheel Guide Post Lock Knob Work Light (220V) Air Hose & Jet Blade Tension Handwheel Table Tilt Scale Motor Access Panel G0668 20" Vertical Metal-Cutting Bandsaw J. K. L. M. N. O. P. Q. 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 -5- Control Panel Identification A B C D E A. B. C. D. E. F. G. H. I. J. K. L. M. 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 & Key Power Lamp Bandsaw Start Button Emergency Stop Button F G H I K J M L Figure 2. Control panel identification. -6- G0668 20" Vertical Metal-Cutting Bandsaw ����������������� �������������������������������������� ������������������������������������ �������������������������������������������������������������������������������������������������� �������������������������������������������������������������������������������������������� �������������������������������������������������������������������������������������������� �������������������������������������������������������������������������������������������� �������������������� ������������������������������������������������������������������� ��������������������������������������� ������������������������������������������������������������������� ���������������������������������������� ������������������������������������������������������������������� ��������������������������������������������������������������������� ������������������������� ������ 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�������� ���������� ����� �������������������������������� ������������������������������������ ������������������������������������ G0668 20" Vertical Metal-Cutting Bandsaw -7- ��������������������������������� ��� ����� ������ �������� ���� ����� ����� ����������� ���������� ��� �������� ����������� ����� ������ �������������������������������������������� ����������� ��� ��������������������������������� ����� ���� ��������� ���� ��������� �� ����� ���� ������������������������� ���� ����� ��������� ������������ ���� ���������� ������� ���������� ���� ������� ������������������ ���� ������ ������ ����� �������� ��� �������������������������������������� ������� ������ ��� ����� ��� �� ��������� ����� ���������������������������������� �������� ���� ���� ��� ���������� �������������� ��� ���� ���� ������� ���� ��� ������ ���� ����������� ��� ������ ���� �������������������������������������� ����������������������������������� �������������������������������������� ���������������� 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Bandsaw Safety Instructions for Metal Cutting Bandsaws 1. BLADE CONDITION. Do not operate with dull, cracked or badly worn blade that can break during operation or decrease the performance of the bandsaw. Inspect blades for cracks and missing teeth before each use. 2. BLADE REPLACEMENT. Wear gloves to protect hands and safety glasses to protect eyes when replacing the blade. When replacing blades, make sure teeth face forward and down toward the table in the direction of blade travel. 3. 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. 4. FIRE HAZARD. Use EXTREME CAUTION if cutting magnesium. Using the wrong cutting fluid will lead to chip fire and possible explosion. 5. 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. 6. HOT SURFACES. Be aware that touching hot workpieces or chips after welding, grinding, or cutting can cause burns. 7. CUTTING FLUID SAFETY. Cutting fluids are poisonous. Always follow manufacturer’s cutting-fluid safety instructions. Pay particular attention to contact, contamination, inhalation, storage and disposal warnings. Spilled cutting fluid invites slipping hazards. 8. 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. 9. MAINTENANCE/SERVICE. All inspections, adjustments, and maintenance are to be done with the power OFF and the plug pulled from the outlet. Wait for all moving parts to come to a complete stop. 10. ROUND/UNSTABLE 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. 11. EXPERIENCING DIFFICULTY. If at any time you are experiencing difficulties performing the intended operation, stop using the machine! Contact our Technical Support Department at (570) 546-9663. No list of safety guidelines can be complete. Every shop environment is different. Always consider safety first, as it applies to your individual working conditions. Use this and other machinery with caution and respect. Failure to do so could result in serious personal injury, damage to equipment, or poor work results. G0668 20" Vertical Metal-Cutting Bandsaw -9- SECTION 2: CIRCUIT REQUIREMENTS 220V 3-Phase Operation Power Connection Device The type of plug required to connect your machine to power depends on the type of service you currently have or plan to install. We recommend using the plug shown in Figure 3. �������� ���������� Serious personal injury could occur if you connect the machine to power before completing the setup process. DO NOT connect the machine to the power until instructed later in this manual. ������� �������� ������ Electrocution or fire could result if machine is not grounded and installed in compliance with electrical codes. Compliance MUST be verified by a qualified electrician! Full Load Amperage Draw ������������� 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: • Use at least a 14 gauge cord that does not exceed 50 feet in length! • The extension cord must also have a ground wire and plug pin. • A qualified electrician MUST size cords over 50 feet long to prevent motor damage. Motor Draw at 220V ................................ 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 circuit with one of higher amperage without consulting a qualified electrician to ensure compliance with wiring codes. If you are unsure about the wiring codes in your area or you plan to connect your machine to a shared circuit, consult a qualified electrician. Minimum Circuit 220V 3-Phase ............. 15 Amps -10- Phase Converter Precaution The power from the manufactured leg of a phase converter 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 & Control Wiring Diagram on Page 42 for identification). G0668 20" Vertical Metal-Cutting Bandsaw SECTION 3: SETUP Setup Safety This machine presents serious injury hazards to untrained users. Read through this entire manual to become familiar with the controls and operations before starting the machine! Wear safety glasses or a face shield during the entire setup process! This bandsaw is a heavy machine. Serious personal injury may occur if safe moving methods are not used. To be safe, get assistance and use power equipment rated for over 1500 lbs. to move the shipping crate and remove the machine from the crate. G0668 20" Vertical Metal-Cutting Bandsaw Items Needed for Setup The following items are needed to complete the setup process, but are not included with your machine: Description Qty • Assistants ................................................... 2 • Safety Glasses (for each person) .............. 1 • Lifting Straps (rated for 1500 lbs.) .....................................................2 Or More • Forklift (rated for 1500 lbs.) ........................ 1 • Floor Mounting Hardware ........... As Needed Unpacking Your machine was carefully packaged for safe transportation. Remove the packaging materials from around your machine and inspect it. If you discover the machine is damaged, please immediately 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- degreaser 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 optimum 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 instructions when using any type of cleaning product. 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. Many cleaning solvents are toxic if inhaled. Minimize your risk by only using these products in a well ventilated area. G2544—Solvent Cleaner & Degreaser A great product for removing the waxy shipping grease from your machine during clean up. Site Considerations Floor Load 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). Figure 4. Cleaner/degreaser available from Grizzly. -12- G0668 20" Vertical Metal-Cutting Bandsaw Moving & Placing Mounting to Shop Floor The bandsaw center of gravity is above the middle of the machine. Although not required, we strongly 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. This bandsaw is a heavy machine. Serious personal injury may occur if safe moving methods are not used. To be safe, get assistance and use power equipment rated for over 1500 lbs. to move the shipping crate and remove the machine from the crate. Bolting to Concrete Floors Anchor studs and lag bolts (Figure 6) are two popular methods for anchoring an object to a concrete floor. We suggest you research the many options and methods for mounting your machine and choose the best that fits your specific application. NOTICE 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. Anchor studs are stronger and more permanent 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 Figure 7. Lifting straps positioned on bandsaw. Lag Anchor & Bolt Figure 6. Typical fasteners for mounting to concrete floors. NOTICE Only use lifting straps and power lifting equipment rated for at least 1500 lbs. and in good working condition. If the bandsaw falls or tips over while moving it, serious personal injury and property damage could result. 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. G0668 20" Vertical Metal-Cutting Bandsaw -13- 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. 5. Place the key in the Power Switch and turn it to the ON position—the Power Lamp should light. 6. 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). 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 bandsaw is in place, test run your machine to make sure it runs properly and is ready for regular operation. The test run consists of verifying 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. ��� Figure 8. Emergency stop button. 7. Push the Start button to turn the machine ON. 8. Verify that the machine is operating correctly. —When operating correctly, the machine runs smoothly with little or no vibration or rubbing noises. If you cannot find a remedy, contact our Tech Support at (570) 546-9663 for assistance. —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. To test run the bandsaw: 1. 2. 3. 4. -14- Read and follow the safety instructions at the beginning of the manual, and make sure the machine is setup properly. Clear all tools and objects used during setup away from the machine, and make sure both wheel doors are closed and secured. 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). Connect the machine to the power source. ������������ ���������� 9. 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. —If 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 wiring junction box (refer to the Motor Wiring Diagram on Page 45 for detailed illustrations). G0668 20" Vertical Metal-Cutting Bandsaw Recommended Adjustments 10. Press the Emergency Stop button to stop the machine. 11. WITHOUT resetting the switch, press the Start button. The machine should not start. —If the machine does not start, the Emergency Stop button safety feature is working correctly. —If 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. 13. Turn the Power Switch key to the OFF position—the Power Lamp should go out. 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 personal 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. 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 alignment (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). —If the machine does not start, the Power Switch safety feature is working correctly. —If 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. G0668 20" Vertical Metal-Cutting Bandsaw -15- SECTION 4: OPERATIONS Operation Safety To reduce the risk of serious injury when using this machine, read and understand this entire manual before beginning any operations. 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. Cutting Overview The vertical metal cutting bandsaw has a flexible continuous blade that cuts in one direction. The type of bandsaw blade and the speed 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 fixtures and with a light, even pressure against the blade. Angular cuts are made with the table and workpiece tilted at an angle other than "0". 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 reinstalled 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 tungsten steel blade guides that keep the blade from wandering during the cut. 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 RECOMMEND that you read books, trade magazines, or get formal training before beginning any projects. Regardless of the content in this section, Grizzly Industrial will not be held liable for accidents caused by lack of training. -16- The efficiency of the cutting operation can be easily checked by examining the shape and color of the metal chips. 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. G0668 20" Vertical Metal-Cutting Bandsaw Cutting Tips • Keep the upper blade guides adjusted to approximately 1⁄4" above the workpiece to provide proper support for the blade during cutting operations. • Replace, sharpen, and clean blades as necessary. Make adjustments periodically to keep the saw running in top condition. • Use light and even pressure while cutting. Light contact with the blade makes it easier to follow lines and prevents extra friction. • 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. • 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. • 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. • Pay attention to the characteristics of the chips when cutting—they are good indicators of proper blade speed and feed rate. Figure 16 on Page 23 shows the basic chip characteristics and what they mean. 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. G0668 20" Vertical Metal-Cutting Bandsaw Workpiece Inspection Some metal workpieces are not safe to cut with a vertical metal cutting bandsaw; instead, a different tool or machine should be used. Before cutting, inspect the material for any of the following conditions and take the necessary precautions: • 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 fingers 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. • Round/Unstable Workpieces: Workpieces that cannot be properly supported or stabilized 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 builtin moving or rotating parts, etc. • Material Hardness: Always factor in the hardness 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. • Tanks, Cylinders, Containers, Valves, Etc: Cutting into containers that are pressurized 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 supported during a cut. • Magnesium: Pure magnesium burns easily. Cutting 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. Digital Speed Display Blade Welding Station Variable Speed Dial Power Lamp Power Switch Start Button Emergency Stop Button Figure 9. Electrical controls. Blade Post Lock Knob Digital Speed Display: Shows blade speed in feet per minute (FPM). Variable Speed Dial: Adjusts the blade speed between 105–2102 FPM. 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/lowers the blade post and upper blade guide assembly when rotated. Blade Tensioning Handwheel: Increases/ decreases blade tension when rotated. Blade Guide Elevation Handwheel Blade Tensioning Handwheel Figure 10. Blade controls. -18- 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. G0668 20" Vertical Metal-Cutting Bandsaw blade widths and radius blade selection Blade Selection Selecting the right blade for the cut requires a knowledge of various blade characteristics. Blade Terminology C G0668 Blade Width Range ....................... 1⁄8"–3⁄4" H F G I 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. F. G0668 Blade Length Range..........1541⁄2"–1593⁄4" Measured from the back of the blade to the tip of the blade tooth (the widest point), blade width is often the first consideration given to blade selection. 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. B E Measured by the blade circumference, blade lengths are usually unique to the brand of your bandsaw and the distance between the wheels. Blade Width A D Blade Length Tooth Rake: The angle of the tooth face from a line perpendicular to the length of the blade. 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. Width Radius 1 ⁄8" .................................... 1⁄8" 3 ⁄16"................................... 3⁄8" 1 ⁄4'' .................................... 5⁄8'' 3 ⁄8'' .................................... 11⁄4'' 1 ⁄2'' .................................... 21⁄2'' 5 ⁄8'' .................................... 33⁄4'' 3 ⁄4'' .................................... 51⁄2'' Figure 12. Blade width radii. 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 bottom of the gullet and the back edge of the blade. I. TPI: The number of teeth per inch measured from gullet to gullet. G0668 20" Vertical Metal-Cutting Bandsaw -19- Tooth Set Tooth Type Three common tooth sets are standard, wavy, and raker (see Figure 13), each removing material in a different manner to make the kerf in the workpiece. 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. ������������������� ������������������� Alternate Wavy Raker Figure 13. Bandsaw tooth sets. Alternate: An all-purpose arrangement of bending 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. ���������������������������� �������������� �������������������� Figure 14. Bandsaw blade tooth types. Variable Pitch (VP): Varying gullet depth and tooth spacing, a "0" rake angle, excellent chip removing capacity, and smooth cutting. Variable Pitch with Positive Rake: Varying gullet depth and tooth spacing, a positive rake angle, better chip formation, and aggressive cutting. Hook or Claw: Wide gullets (round or flat), equally spaced teeth, positive rake angle, and fast cut with good surface finish. Skip or Skip Tooth: Wide, flat gullets, a "0" rake angle, equally spaced teeth, and recommended for non-ferrous materials. -20- G0668 20" Vertical Metal-Cutting Bandsaw Blade Pitch (TPI) 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 blades/HSS blades. However, for exact specifications of bandsaw blades that are correct for your operation, contact the blade manufacturer. To select the correct blade pitch: 1. Measure the material thickness. This measurement is the length of cut taken from where the tooth enters the workpiece, sweeps through, and exits the workpiece. 2. Refer 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. Material Width/Diameter Material Shapes � �� � Refer to the "Material Shapes" row and find the shape of the material to be cut. 4. 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. 5. The "Cutting Speed Rate Recommendation" section of the chart offers guidelines for various metals, given in feet per minute (FPM). Choose the speed closest to the number shown in the chart. Teeth Per Inch (TPI) for Variable Pitch Blades ��������������� �� �� �� ��� ��� ��� ��� ��� ��� ���� 3. �� � � � ��� ��� ��� ��� ��� ��� ������ ��� ������� � � � �� �� �� �� �� �� �� �� ��� �� �� ��������������������������������� �������� ��������� ������� �������� ��������� ������� �������� ��������� ������� �������� ��������� ������� ������ ����� ������� ���������� ���������� ��� ���� ����� ����� ������� ��������� �������������� ��������������� ������� ��������� ����� ����� ������� ��������� ���������� ���������� ������ ��������� ���������� ��� ���� ���� ��������� ������� ��������� ���� ���� ������� ��������� ��������� ���������� ������ ��������� ����� �������� ���������� ��� ���� ������� ���������� ��������� ����� ��������� �������� ������� ���������� ����� �������� ���������� ��� ���� ��������� ����� �� ���� ��������� ��������� ��� ���� ������������ ���������� ������� ��������� ������������ ����� ������ ��������� �������� ��� ���� ������ ����� ������� ���������� Figure 15. General guidelines for blade selection and speed chart. G0668 20" Vertical Metal-Cutting Bandsaw -21- 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: • Faulty alignment or adjustment of the blade guides. • Forcing or twisting a wide blade around a short radius. • Feeding the workpiece too fast. • Dull or damaged teeth. • Over-tensioned blade. • Top 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. Blade Care & Break-In Blade Care 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. • Using a blade with a lumpy or improperly finished braze or weld. 2. Reduce the feed pressure by half for the first 50–100 in2 of material cut. • Continuously running the bandsaw when not in use. 3. • Leaving the blade tensioned when not in use. 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. • -22- 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. G0668 20" Vertical Metal-Cutting Bandsaw chip inspection chart ������������� 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 Appearance ������������� ������������������� ������������� Chip Chip ������������������� Description ������������� Blade Speed Feed Pressure Good Good Decrease Decrease Lubricate with Light Oil Decrease Decrease Lubricate with Light Oil Good Decrease Slightly Check Blade Pitch Increase Decrease Check Blade Pitch Silver Good Increase Silver Decrease Increase Good Decrease Color ������������������� �������������������� ������������� Thin�������������������� & Curled Silver ������������������� ������������������� �������������������� Hard, Thick & ������������������� �������������������� Brown or Blue Short �������������������� ������������������� �������������������� �������������������� Hard, Strong & �������������������� �������������������� Brown or Blue Thick �������������������� �������������������� ����������� �������������������� Hard, Strong & Silver or Light �������������������� ����������� Thick Brown �������������������� ����������� �������������������� ����������� Hard & Thin Silver ��������������� �������������������� ����������� ��������������� ����������� ��������������� Straight & Thin ����������� ������� ��������������� ����������� ������� ��������������� Powdery ������� ��������������� ������� ��������������� Curled Tight & ��������������������� Silver Thin ��������������� ������� Additional Actions Check Blade Pitch ��������������������� ������� Figure 16. Chip inspection chart. ��������������������� ������� ��������������������� ������� ��������������������� ��������������������� ��������������������� ��������������������� G0668 20" Vertical Metal-Cutting Bandsaw -23- blade changes Blade Changes Always disconnect power to the machine when changing blades. Failure to do this may result in serious personal injury. All saw blades are dangerous and may cause personal injury. To reduce the risk of being injured, wear heavy leather gloves when handling saw blades. 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. 4. Put on heavy leather gloves, then slide the blade off the upper and lower wheels, around the blade post, and through the table slit. 5. Rotate the top wheel by hand several times to make sure the blade tracks evenly without wandering across the wheel surface. Note: If the blade wanders across the wheel, the wheel alignment may need to be adjusted. Refer to Wheel Alignment on Page 38 for detailed instructions. 7. Re-tension the blade (refer to Blade Tensioning on Page 25). 8. Check the upper and lower blade guides for proper clearance (refer to Adjusting Blade Guides on Page 26). Install a new blade in reverse order (see Figure 17). 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. 9. Close and secure the upper and lower wheel doors. Figure 17. Placing blade on upper wheel. 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- G0668 20" Vertical Metal-Cutting Bandsaw blade tensioning Blade Tensioning Guide Post Proper blade tension reduces the risk of blade breakage and improves cutting performance. The guide post assembly is used for two purposes: 1) To properly position the blade guard to protect 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. 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 3⁄8" 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 recommended setting of 25,000–30,000 PSI (refer to Page 31). In order to cut accurately and safely, position the bottom of the upper blade guides approximately 1 ⁄4" above the workpiece—this positioning provides the greatest blade support and minimizes the amount of blade exposed to the operator during 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 ������������������ ���������������� Guide Post Lock Knob Blade Guard Figure 18. Blade deflection when correctly tensioned. 4. 5. Make small adjustments to the blade tensioning handwheel, then rotate the top wheel by hand several times before checking the blade deflection again. Repeat this step until you are satisfied. Close the upper wheel door and reposition the guide post. Blade Guides & 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. G0668 20" Vertical Metal-Cutting Bandsaw -25- adjusting blade guides Adjusting Blade Guides & Supports Blade Support Cap Screw The blade guides and supports provide side-toside and rear 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. Blade Guide Bracket Cap Screw To properly adjust the upper and lower blade guides and supports: 1. DISCONNECT BANDSAW FROM POWER! 2. Make sure the bandsaw blade is properly tensioned (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). Figure 21. Lower blade guides and bracket. 4. Position the blade guides so that they are approximately 1⁄16" behind the tooth gullets (see Figure 22), then re-tighten the blade guide bracket cap screw. ����������� Blade Guide Bracket Cap Screw ���� � Figure 22. Blade guides positioned approximately 1⁄16" behind tooth gullets. Blade Support Cap Screw Figure 20. Upper blade guides and bracket. 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- 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 operation. Otherwise, the teeth will be damaged as they come in contact with the blade guides. G0668 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. 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. Blade Guide Cap Screws Air Nozzle Adjusting Table Tilt To perform beveled cuts, the bandsaw table tilts 15° to the left and 45° to the right. 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. 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. 3. Using the table tilt scale, adjust the angle of the table for your operation, then re-tighten the hex nut. Figure 24. Using a dollar bill to set blade guide spacing. G0668 20" Vertical Metal-Cutting Bandsaw -27- blade welding Blade Welding Being able to quickly and safely weld a bandsaw blade comes in handy for the following situations: • To repair a broken blade that is still sharp and useful. • To fabricate a new blade from a larger section of blade material to fit your bandsaw. • To 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 flexibility. 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 any teeth that are in the welding zone (see Figures 27–28). Figure 27. Using the grinder to square up the blade end. ������������ 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 during 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 28. Blade ends and welding zone. Figure 26. Using the blade shear to cut the blade. -28- G0668 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). Welding Clamp Blade End 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 the correct setting for the blade. Blade Width Pressure Setting Up to ⁄4" 1 ⁄4" to ⁄ 8" 2–3 Above 3 ⁄ 8" 4+ 1 1 Lock Lever 3 Figure 31. Blade clamping pressure chart. 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 pressure is set with the clamping pressure dial in a later step. Burning sparks from the blade welding operation 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 welding button. Note: There is a limit switch that senses the electrical resistance between the blade ends. If there is a adequate amount of welded material, the limit switch will not allow the welding button to activate the operation again. Welding Button Clamping Pressure Dial Annealing Button Figure 30. Blade ends in correct position for welding. G0668 20" Vertical Metal-Cutting Bandsaw -29- 10. After the welding operation is complete, rotate the lock levers down to release the welding clamps, then rotate the clamping pressure dial to "0". 11. Inspect the weld. The welded joint should be even across the width of the blade with no gaps (see Figure 32). ������� 16. Allow the blade to fully cool, then re-inspect the weld. 17. 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. 18. Re-clamp the blade in the welding clamps with the joint centered, then repeat Step 14 ����������� twice more. ����������� ����������� Figure 32. Blade welded joint examples. 19. 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). ������� —If the weld is satisfactory, continue to Step 12. —If the weld is NOT satisfactory, begin again at Step 2. 12. Set the clamping������� pressure dial to 4 or greater to bring the welding clamps close together. 13. Place the blade in the welding clamps with the weld centered between the clamps and re-tighten the lock levers. Note: The welding operation has left the ����������� blade joint brittle. Annealing will allow the material to cool in gradual manner, giving the weld strength and flexibility. 14. Rapidly press and release—DO NOT hold— the annealing button two or three times until the weld zone turns dull red. ����������� 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. 15. Repeat Step 14 three to four more times, allowing the weld to cool for about 30 seconds between each repetition. -30- G0668 20" Vertical Metal-Cutting Bandsaw accessories SECTION 5: ACCESSORIES T20501—Face Shield, 4" Crown, Clear T20502—Face Shield, 7" Crown, Clear T20448—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 specifications. Buy extras for visitors or employees. You can't be too careful with shop safety! T20448 Grizzly Metal-Cutting Bandsaw Blades Variable Pitch, 1" Width, 0.035" Gauge T20523—3–4 VP TPI T20524—4–6 VP TPI T20525—5–8 VP TPI T20526—6–10 VP TPI T20527—8–12 VP TPI T20528—10–14 VP TPI 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 indicator provides you with a direct readout in PSI. T20452 T20501 T20456 H0736 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 & O Vapor Wood and other types of dust can cause severe respiratory damage. If you work around dust everyday, a half-mask respirator can greatly reduce your risk. Compatible with safety glasses! Figure 36. H5408 Blade Tensioning Gauge. G5562—SLIPIT® 1 Qt. Gel G5563—SLIPIT® 12 oz Spray G2871—Boeshield® T-9 12 oz Spray H3788—G96® Gun Treatment 12 oz Spray Figure 35. Half-mask respirator with disposable cartridge filters. Figure 37. Recommended products for protecting unpainted cast iron/steel part on machinery. G0668 20" Vertical Metal-Cutting Bandsaw -31- SECTION 6: MAINTENANCE Cleaning Always disconnect power to the machine before performing maintenance. Failure to do this may result in serious personal injury. Schedule For optimum performance from your machine, follow this maintenance schedule and refer to any specific instructions given in this section. 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 Figure 38). Daily: • Check/correct damaged or dull saw blade. • Check/correct worn or damaged wires. • Clean/protect table. • Clean metal chips from upper and lower wheel areas and the lower wheel brush, and empty bottom chip pan. • Correct any other unsafe condition. Monthly: • Check for V-belt tension, damage, or wear. • Lubricate tension leadscrews and guide post rack. • Remove the blade and clean the wheels. • Re-adjust the lower wheel brush. -32- Figure 38. Lower wheel chip pan. G0668 20" Vertical Metal-Cutting Bandsaw redressing Redressing Rubber Tires 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). 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 vibration/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 rubber 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. Guide Post Rack Tension 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. Lubrication The bearings on your bandsaw are factory lubricated 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 surfaces. 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. G0668 20" Vertical Metal-Cutting Bandsaw Trunnion Surfaces Figure 40. Table tilted to expose trunnion surfaces. -33- troubleshooting SECTION 7: SERVICE Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem develops. 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 & Electrical Symptom Possible Cause Machine does not 1. Power switch key is removed or not in ON start or a breaker position. trips. 2. Emergency stop push-button is engaged/ faulty. 3. Plug/receptacle is at fault or wired incorrectly. 4. Motor connection wired incorrectly. 5. Wall fuse/circuit breaker is blown/tripped. 6. Power supply switched OFF or is at fault. 7. Wiring is open/has high resistance. 8. Inverter is at fault. 9. Motor is at fault. Machine stalls or is 1. Feeding workpiece too fast. overloaded. 2. Workpiece alignment is poor. 3. Wrong workpiece material or blade. 4. Blade is slipping on wheels. 5. Motor connection is wired incorrectly. 6. V-belt(s) slipping. 7. Plug/receptacle is at fault. 8. Pulley/sprocket slipping on shaft. 9. Motor bearings are at fault. 10. Machine is undersized for the task. 11. Motor has overheated. 12. Motor is at fault. -34- Possible Solution 1. Install power switch key and turn it to the ON position. 2. Rotate clockwise until it pops out; replace it if faulty. 3. Test for good contacts; correct the wiring. 4. Correct motor wiring connections (Page 45). 5. Ensure circuit size is suitable for this machine; replace weak breaker. 6. Ensure power supply is switched on; ensure power supply has the correct voltage. 7. Check for broken wires or disconnected/corroded connections, and repair/replace as necessary. 8. Replace inverter. 9. Test/repair/replace. 1. Reduce feed rate; increase blade speed. 2. Eliminate workpiece binding; use jig, fence, guide, clamps, roller table, or push blocks as required for workpiece alignment control. 3. Use metal with correct properties for your type of machining; match blade with workpiece and operation. 4. Adjust blade tracking and tension (Page 25), redress rubber wheel tires if necessary (Page 33). 5. Correct motor wiring connections (Page 45). 6. Replace bad V-belt(s) as a matched set, align pulleys, and re-tension (Pages 36 & 37). 7. Test for good contacts; correct the wiring. 8. Replace loose pulley/shaft. 9. Test by rotating shaft; rotational grinding/loose shaft requires bearing replacement. 10. Use sharp blade with lower TPI; reduce the feed rate; use a small amount of oil-based coolant if necessary. 11. Clean off motor, let cool, and reduce workload. 12. Test/repair/replace. G0668 20" Vertical Metal-Cutting Bandsaw Motor & Electrical (continued) Symptom Possible Cause Possible Solution 1. Inspect/replace V-belts with a new matched set (Pages 36 & 37). 2. Realign/replace shaft, pulley, set screw, and key as required. Motor mount loose/broken. 3. Tighten/replace. Machine is incorrectly mounted or sits 4. Tighten/replace anchor studs in floor; relocate/shim unevenly. machine. Workpiece is loose. 5. Use the correct holding fixture and reclamp workpiece. 6. Replace dented fan cover; replace loose/damaged Motor fan is rubbing on fan cover. fan. 7. Test by rotating shaft; rotational grinding/loose shaft Motor bearings are at fault. requires bearing replacement. 8. Re-tension/replace blade (Pages 24 & 25). Blade is at fault. Blade wheels out of alignment. 9. Re-align blade wheels (Page 38). Machine has vibra- 1. V-belt(s) worn or loose. tion or noisy operation. 2. Pulley is loose. 3. 4. 5. 6. 7. 8. 9. Cutting Operations Symptom Possible Cause Machine slows when 1. Feeding workpiece too fast. operating. 2. Blade is dull. Possible Solution 1. Reduce feed rate/increase blade speed. 2. Replace 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 table. contacting 1. Table improperly mounted or aligned. Vibration when cut- 1. Workpiece is loose. ting. 2. Loose or damaged blade. 3. Metal chip buildup on wheels. 1. Properly align table (Page 40). 1. Use the correct holding fixture and reclamp workpiece. 2. Re-tension/replace blade (Pages 24 & 25). 3. Clean metal chips from wheels. 1. Reduce feed rate/increase blade speed. Rough or poor qual- 1. Feeding workpiece too fast. ity cuts. 2. 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). 3. Blade guides/support adjusted incorrectly. 3. Correctly adjust blade guides/support (Page 26); set the blade guides approximately 1/8" above workpiece. Blade wanders or 1. Blade lead. doesn't cut straight. 2. Metal chip buildup on wheels. 1. Re-tension/replace blade (Pages 24 & 25). 2. Clean metal chips from wheels. Cuts are not square 1. Table tilt is not adjusted to "0". (vertically). 2. Table is not square to the blade. 1. Adjust table to "0" tilt. 2. Adjust table square with blade (Page 40). Wheel is noisy. 1. Replace wheel bearing. 2. Check/re-tension the V-belt (Page 36). 1. Wheel bearing is worn out. 2. V-belt is too tight (lower wheel). Blade does not track 1. Wheels are not coplanar or aligned with 1. Adjust wheels to be coplanar/aligned with one consistently, coranother (Page 38). each other. rectly, or at all. 2. Rubber tires on wheels are worn out. 2. Redress the rubber tires on the wheels (Page 33). G0668 20" Vertical Metal-Cutting Bandsaw -35- pulley alignment tensioning v-belts Lower Wheel Pulley Alignment Tools Needed: Qty Hex Wrench 6mm.............................................. 1 Wrench 19mm ................................................... 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 operation. 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 Tensioning V-Belts Tools Needed: Qty Wrench 12mm ................................................... 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 tension. 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/replace 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". ������ ���������� 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. ������ Figure 42. Checking for correct V-belt tension. —If the deflection is correct and the V-belts are in good condition, no further action is required. Replace the rear motor access panel. —If the deflection is more than or less than 3 ⁄4" or the V-belts need to be replaced, then continue with the next steps. -36- G0668 20" Vertical Metal-Cutting Bandsaw replacing v-belts 5. Adjusting Wheel Brush Loosen the four motor mounting hex bolts (see Figure 43). Motor Mounting Hex Bolts (3 of 4 shown) Tools Needed: Qty Wrench 10mm ................................................... 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. Figure 43. Motor mounting hex bolts. 6. Wheel Brush Position the motor to adjust the V-belt tension until they have the correct deflection, then retighten the hex bolts. Replacing V-Belts Tools Needed: Qty Wrench 12mm ................................................... 1 Replace the V-belts as a matched set if they are cracked, frayed, or excessively worn. Figure 44. The wheel brush. To replace the motor V-belts: To adjust the wheel brush: 1. DISCONNECT BANDSAW FROM POWER! 1. DISCONNECT BANDSAW FROM POWER! 2. Loosen the four motor mounting hex bolts (see Figure 43). 2. Open the lower wheel cover. 3. Move the motor toward the lower wheel to relieve the tension, then roll the V-belts off the pulleys. Loosen the hex bolt that secures the wheel brush. 4. Install a new matched set of V-belts onto the pulleys, then correctly tension them, as described on Page 36. 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. 3. 4. 5. Secure the motor access panel to the machine before re-connecting it to power. G0668 20" Vertical Metal-Cutting Bandsaw -37- wheel alignment Wheel Alignment ����� Materials Needed: Qty 671⁄4" Long 2x4 .................................................. 1 ��� Tools Needed: Qty Wrench 12mm ................................................... 1 Wrench 17mm ................................................... 1 Wrench 21mm ................................................... 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 overall bandsaw wear are considerably decreased when the wheels are properly aligned or "coplanar". ������ ������ ����� To check if your wheels are parallel and coplanar: 1. Make the "Coplanarity 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 correctly tension the blade for normal operations. 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. —If 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. —If the wheels are NOT parallel or coplanar, continue with the following steps to bring both wheels into correct alignment with one another. -38- ��������� Figure 45. Dimensions of coplanarity gauge. ����������� ����� ��������������� ������ Figure 46. Coplanarity gauge positions. G0668 20" Vertical Metal-Cutting Bandsaw Although both wheels can be adjusted to accomplish correct wheel alignment, we recommend that you start with the upper wheel, and, if necessary, continue the adjustments with the lower wheel. 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) When both wheels are correctly aligned with one another, re-check V-belt tension (Page 36), reinstall the table, re-check table alignment (Page 40), and re-adjust the blade guides and supports. The upper wheel adjusting fasteners consist of four locking hex bolts and four adjusting hex bolts with jam nuts (see Figure 47). Figure 48. Lower wheel adjustment assemblies. Locking Hex Bolt Adjustment Hex Bolt & Jam Nut 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: If the top of the lower wheel leans too far forward (see fourth example in Figure 49), thread the top two adjustment sleeves out. 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 retightened. 3. Re-tighten the locking hex bolts and jam nuts to secure the settings of the adjustment hex bolts. 4. Re-check the wheels for alignment and repeat the steps above if necessary. G0668 20" Vertical Metal-Cutting Bandsaw 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-check the wheels for alignment and repeat the steps above if necessary. -39- table alignment ������������ ������������ ������������� �������� ���������� ������������ ������������������������������� ������������������������� ����������������� �������� Figure 49. Examples of wheel orientation to one another. Aligning Table to Blade 4. Use a square to check table alignment with the side and the back of the blade, as shown in Figure 50. 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.............................................. 1 Wrench 12mm ................................................... 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 tensioned (Page 25). 3. Set the angle of the table to "0". -40- Figure 50. Checking table alignment with the blade. G0668 20" Vertical Metal-Cutting Bandsaw 5. Loosen the table mounting hex bolts (see Figure 51). ������ ��������� Set Screws �������������� ������� Mounting Hex Bolts Figure 51. Table mounting hex bolts and adjusting set screws. 6. Adjust the set screws so that the table is square to the blade front-to-back and side-toside. Note: Make small adjustments to the set screws, then recheck the alignment of the table with the blade. 7. When the table is 90° to the blade from front-to-back and side-to-side, re-tighten the mounting hex bolts to secure the table alignment. Blade Guides ���� ���� ������ ������������� Figure 52. Blade guide and support orientation. As the blade is deflected back into the blade support during operation, a groove will eventually wear into the blade support. As this groove becomes deeper, it can affect the accuracy of the cut. When this happens, loosen the blade support cap screw and rotate the blade support, as shown in Figure 52. Note: Make sure to re-adjust the blade guides and support (as directed in Adjusting Blade Guides & Support on Page 26) after making 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 & Support on Page 26). If this is the case, swap and turn over the blade guides so that the inserts are reversed relative to the blade (see Figure 52). G0668 20" Vertical Metal-Cutting Bandsaw -41- electrical & switch wiring diagram �� �� �� � ��� ��������� ����������� �� �� ��� ���� ��� �� �� ��� � ���� �� �� �� �� � ���� ���� ���� ���� �� ���� � �� � � � � �� �� �� �� �� �� �� �� ����� ������ �� ����� ���� �� ����� ������ ���� ����������� ���������� Electrical Panel (see Figure 57 on Page 44) Electrical & Control Wiring Diagram Control Panel (see Figure 55 on Page 44) �� �� �� �� �� ��������� ����� ����� ����� ��� ������� � � � �� � � ���� ���� ���� ���� � � ���� ���� ���� ���� ����� �������� ��������� ������������ � � �� �� � � � �� �� � �� � � � � ������� �� ������� � �� �� � � � �� � � �� �� �� �� �� �� �� � �� �� � � � � � � � � � � � � �� � � � �� �� ���� To Inverter (see Wiring Diagram on Page 43) ������ � � � �� �� �� Connect the manufactured leg of a power converter to the "S" terminal here. �� To Motor Fan (see Photo & Wiring Diagram on Page 45) �� ���� �� ���� To Welding Station (see Photo & Wiring Diagram on Page 46) �� �� �� �� �� ���� ������� ����� ��� ������ � ��� � � � ��� ��������������� ���������������� -42- G0668 20" Vertical Metal-Cutting Bandsaw inverter wiring diagram Inverter Wiring Diagram ��������� ����� �� ����� �� ����� �� ��� ���� ������ �� �� �� Figure 53. Digital display wiring. ���� ���� Figure 54. Variable speed dial wiring. �� �� �� To Motor (see Photo & Wiring Diagram on Page 45) �� �� �� � �� � �� �� � � �� � �� � �� �� �� �� �� ��� �� �� �� �� �� ��� ��� ��� ��� ��� ��� �� �� ��� �� ��� ��� ��� To Electrical Panel (see Figure 57 on Page 44, Wiring Diagram on Page 42) ��� ��� ��� ��� ��� ������������������������ Inverter (see Figure 56 on Page 44) G0668 20" Vertical Metal-Cutting Bandsaw -43- electrical components Electrical Components Power Lamp Emergency Stop Power Switch Bandsaw Start Figure 55. Control panel wiring (see wiring diagram on Page 42). Figure 56. Inverter/Controller box wiring (see wiring diagram on Page 43). Figure 57. Main electrical wiring (see wiring diagram on Page 42). -44- G0668 20" Vertical Metal-Cutting Bandsaw motor wiring diagram Motor Wiring Diagram ��������� ����� �� ����� �� ����� �� ��� �� Figure 58. Motor junction box wiring. Motor �� �� ������ � � �� Motor Fan Wiring � To Control Panel (see Page 42) � �� �� �� �� � �� ���� ������ ������� ������ ����� ��� ���������������������������������������� ���� ���� ������ ����� ��������� ������� ���� ���� ������� �������� ������������������������������ ��������������� ��� ������ �������� ��� ��������� ������ ������ ����� ���� ���� ������ ������� �������������������������������� G0668 20" Vertical Metal-Cutting Bandsaw -45- welding station wiring diagram �� ���������������� Welding Station Wiring Diagram ����� ������� ����� ������� ������ � � � �� � � � �� ���� ������� ����� ��� ������ �� �� �� �� �� �� �� �� � �� � � � � � � Figure 59. Welding station wiring. �� �� �� �� �� �� �� �� To Electrical Panel (see Page 42) ���������������� ��������������� ����������� �� �� ������� ����� ��� � ������� ������ � ��������� �� � � � � ����� �� ����� �� ����� �� ���� -46- ��� ���� ������ �� �� �� �� G0668 20" Vertical Metal-Cutting Bandsaw SECTION 8: PARTS Cabinet �� �� �� �� �� �� �� �� �� �� � �� �� ���� �� �� � �� �� �� �� �� �� �� � ��� �� � ��� ��� � � � ��� �� � �� �� �� �� �� ������ ��� ��� ��� ���� � ��� ��� ���� ���� ����� REF PART # DESCRIPTION REF PART # DESCRIPTION 1 2 3 4 4-1 4-2 4-3 4-4 5 6 7 8 9 10 11 12 13 14 15 16 WHEEL DOOR LOWER HINGE PIN LOWER PHLP HD SCR M5-.8 X 8 CONTROL PANEL POWER SWITCH W/KEY POWER LAMP EMERGENCY STOP BUTTON MOTOR ON BUTTON BLADE CLEANING BRUSH PHLP HD SCR M6-1 X 25 WHEEL DOOR UPPER HINGE PIN UPPER PHLP HD SCR M5-.8 X 8 DIGITIAL DISPLAY BRACKET CAP SCREW M8-1.25 X 16 BLADE SHEAR VARIABLE SPEED DIAL AIR PUMP BANDSAW CABINET AIR HOSE 4X6MM 17 18 18-1 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 AIR NOZZLE WORK LAMP 220V LIGHT BULB 220V DOOR KNOB PHLP HD SCR M6-1 X 25 CAP SCREW M6-1 X 15 FLAT WASHER 6MM MOTOR ACCESS PANEL FLAT WASHER 6MM HEX BOLT M6-1 X 10 CHIP PAN DIGITAL DISPLAY INVERTER RM5G 2HP 220V 3PH CONTROL PANEL TRANSFORMER 1PH 0-3VA CONTACTOR NHD C-12D 220V RELAY ARITA MR2P 24V 3-5A FUSE HOLDER FUSE 3A TERMINAL BLOCK 11-POST P0668001 P0668002 PS05M P0668004 P0668004-1 P0668004-2 P0668004-3 P0668004-4 P0668005 PS47M P0668007 P0668008 PS05M P0668010 PSB11M P0668012 P0668013 P0668014 P0668015 P0668016 G0668 20" Vertical Metal-Cutting Bandsaw P0668017 P0668018 P0668018-1 P0668019 PS47M PSB28M PW03M P0668023 PW03M PB04M P0668026 P0668027 P0668028 P0668029 P0668030 P0668031 P0668032 P0668033 P0668034 P0668035 -47- Table & Lower Guide ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� REF PART # DESCRIPTION REF PART # DESCRIPTION 101 102 103 104 105 106 107 108 109 CAP SCREW M6-1 X 20 LOCK WASHER 6MM BLADE GUIDE BLADE GUIDE BRACKET LOWER GUIDE POST LOWER CAP SCREW M6-1 X 25 BLADE SUPPORT HEX NUT 5/8-11 LOCK WASHER 5/8 110 111 112 113 114 115 116 117 FLAT WASHER 8MM CAP SCREW M8-1.25 X 20 TRUNNION BASE CAP SCREW M8-1.25 X 20 FLAT WASHER 8MM TRUNNION TABLE TILT LOCK 5/8-11 X 2 TABLE -48- PSB02M PLW03M P0668103 P0668104 P0668105 PSB06M P0668107 PN04 PLW06 PW01M PSB14M P0668112 PSB14M PW01M P0668115 P0668116 P0668117 G0668 20" Vertical Metal-Cutting Bandsaw Motor & Lower Wheel ��� ��� ��� ��� ��� ��� ��� ����� ��� ��� ��� ����� ����� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� REF PART # DESCRIPTION REF PART # DESCRIPTION 201 202 203 204 205 206 207 208 209 210 211 WHEEL TIRE BANDSAW BLADE 3/8"W STANDARD WHEEL LOWER HEX BOLT M10-1.5 X 10 COLLAR SET SCREW M8-1.25 X 8 BALL BEARING 6206Z KEY 8 X 8 X 20 LOWER WHEEL SHAFT SPECIAL SCREW HEX BOLT M10-1.5 X 50 212 213 214 215 216 217 218 219 219-1 219-2 219-3 BEARING HOUSING EXT RETAINING RING 30MM WHEEL PULLEY SET SCREW M12-1.75 X 35 V-BELT A-66 4L660 MOTOR PULLEY SET SCREW M8-1.25 X 10 MOTOR 2HP 220V 3PH MOTOR FAN COVER MOTOR FAN MOTOR WIRING JUNCTION BOX P0668201 P0668202 P0668203 PB170M P0668205 PSS20M P6206Z PK107M P0668209 P0668210 PB73M G0668 20" Vertical Metal-Cutting Bandsaw P0668212 PR15M P0668214 PSS105M PVA66 P0668217 PSS16M P0668219 P0668219-1 P0668219-2 P0668219-3 -49- -50- ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ����� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� Welding Station G0668 20" Vertical Metal-Cutting Bandsaw Welding Station Parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 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 HEX BOLT 1/4-20 X 4 TRANSFORMER BRACKET FLAT WASHER 6MM HEX NUT M6-1 LIMIT SWITCH CAP SCREW M6-1 X 25 CAP SCREW M6-1 X 10 LIMIT SWITCH BRACKET SLIDING BLOCK WELDING CLAMP LEFT WELDING JAW LEFT CAP SCREW M6-1 X 12 E-CLIP 6MM SHAFT CLAMP LEVER CAP SCREW M6-1 X 12 SLIDING BLOCK BASE CAP SCREW M6-1 X 16 GRINDER COVER HEX NUT M6-1 FLAT WASHER 6MM GRINDING WHEEL 2-1/2"D FLAT WASHER 6MM GRINDER MOTOR 1/8HP 220V 1PH S CAPACITOR 3M 250V 3/4 X 1-1/4 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 ON/OFF SWITCH PHLP HD SCR M6-1 X 16 PHLP HD SCR M6-1 X 20 WELDING PANEL CLAMP PRESSURE KNOB E-CLIP 6MM CLAMP LEVER SHAFT WELDING CLAMP RIGHT INSULATING PLATE FLAT WASHER 6MM CAP SCREW M6-1 X 20 CAP SCREW M6-1 X 20 WELDING JAW RIGHT CAP SCREW M6-1 X 20 HEX NUT M6-1 FLAT WASHER 6MM PRESSURE CAM CAM SHAFT TENSION SPRING PHLP HD SCR 1/4-20 X 1/2 BRACKET ANNEALING PUSH BUTTON WELDING PUSH BUTTON TRANSFORMER 4.2KVA 220V PB96 P0668302 PW03M PN01M P0668305 PSB06M PSB04M P0668308 P0668309 P0668310 P0668311 PSB26M PEC09M P0668314 P0668315 PSB26M P0668317 PSB01M P0668319 PN01M PW03M P0668322 PW03M P0668324 P0668324-1 G0668 20" Vertical Metal-Cutting Bandsaw P0668325 PS11M PS26M P0668328 P0668329 PEC09M P0668331 P0668332 P0668333 P0668334 PW03M PSB02M PSB02M P0668338 PSB02M PN01M PW03M P0668342 P0668343 P0668344 PS04 P0668346 P0668347 P0668348 P0668349 -51- Guide Post ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� REF PART # DESCRIPTION REF PART # DESCRIPTION 501 502 503 504 505 506 507 508 509 510 511 512 513 CAP SCREW M6-1 X 20 FLAT WASHER 6MM BLADE GUIDE BLADE GUIDE BRACKET UPPER BLADE SUPPORT CAP SCREW M6-1 X 20 PIN 4 X 6 GUIDE POST CLAMP PLATE GUIDE POST RACK GUIDE POST BRACKET LOCK WASHER 14MM LOCK KNOB SPECIAL SCREW 514 515 516 517 518 519 520 521 522 523 524 525 GUIDE POST PINION GEAR WORM GEAR COLLAR HANDWHEEL HANDLE HANDWHEEL SET SCREW M6-1 X 6 BRACKET LOCK WASHER 6MM CAP SCREW M6-1 X 20 BLADE GUARD FLAT WASHER 8MM CAP SCREW M8-1.25 X 15 -52- PSB02M PW03M P0668503 P0668504 P0668505 PSB02M P0668507 P0668508 P0668509 P0668510 PLW08M P0668512 P0668513 P0668514 P0668515 P0668516 P0668517 P0668518 PSS02M P0668520 PLW03M PSB02M P0668523 PW01M PSB100M G0668 20" Vertical Metal-Cutting Bandsaw Upper Wheel ����� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� REF PART # DESCRIPTION REF PART # DESCRIPTION 603 604 605 606 607 608 609 610 611 612 613 614 WHEEL UPPER HEX BOLT M10-1.5 X 10 EXT RETAINING RING 20MM BALL BEARING 6304Z BEARING HOUSING UPPER WHEEL SHAFT KEY SPECIAL WASHER SPECIAL BOLT PIVOT PIN HEX BOLT M8-1.25 X 25 FLAT WASHER 8MM 615 615-1 616 617 618 619 620 621 622 623 624 UPPER WHEEL BRACKET BRACKET PLATE SET SCREW M6-1 X 6 COLLAR THRUST BEARING 2901 TENSIONING BRACKET LEADSCREW BRACKET HEX BOLT M8-1.25 x 25 HEX BOLT M8-1.25 X 10 TENSIONING LEADSCREW TENSIONING HANDWHEEL P0668603 PB170M PR09M P6304Z P0668607 P0668608 P0668609 P0668610 P0668611 P0668612 PB07M PW01M G0668 20" Vertical Metal-Cutting Bandsaw P0668615 P0668615-1 PSS02M P0668617 P2901 P0668619 P0668620 PB07M PB17M P0668623 P0668624 -53- Labels ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� REF PART # DESCRIPTION REF PART # DESCRIPTION 401 402 403 404 405 406 MODEL # LABEL BLADE SPECIFICATION LABEL POWER DISCONNECT LABEL VERT S EYE/LUNG HAZARD LABEL VERT L READ MANUAL LABEL VERT L GRIZZLY NAMEPLATE 9-1/2" X 4-1/2" 407 408 409 410 412 MACHINE ID LABEL BLADE HAZARD LABEL VERT L DOOR INJURY HAZARD LABEL VERT S GRIZZLY PUTTY TOUCH UP PAINT STABLE WORKPIECE LABEL P0668401 P0668402 P0668403 P0668404 PLABEL-12 G8588 P0668407 P0668408 P0668409 PPAINT-11 P0668412 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 ������������� ���������������������������������������������������������������������������������� � ������������������������������������������������������������������������������������ ����� ����������������������� ������������������������������� ���� ��������������������� ���������������������������� ������ ������������������������ ��������������������������� ���������������������������� ������������������������������� ��������������������������� ������������������������������������������������������������������������������������������������������������������� ���������������������������������������������������������������������������������� ��� ��������������������������� � ����� �������������� � ����� ���������� � ���� ������� � ���� �������� ����� ������� ����� ������ ��������������������� ��� ����������������������������������������������������� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ������������� ��������������� ����������� ����� ������������������� ���������������������� ���������� ������������������� �������� ����������������� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ����������������� ��������������� ������������������� ������������������� ����������������� ����������������� ���������� ���� ���������� ������������ ���� ���� ���� ���� ���� ���� ���� ���� ���� ����������������� ���� ����������� ������������� ��������� �������� ��������������� �������������������� ������ ��� ������������������������������������� � ����� ���������������� � ���� ���������������� � ����� ���������������� � ���� ���������������� ����� ��������������� ����� �������� ��� ����������������������� � ����� ������ � ����� ������ ����� ����� ����� ��� � ���� ������ � ���� ������ ��� ������������������������������������������������ � ����� ���������� ����� ���������� ����� ������������ � ���� ��������� ��� ����������������������������������������������� � ����� ���� ����� ���� ����� ���� � ���� ��� ��� ��������������������������������������������������� ������ ���� �������� ��� ���������������������������������������������������� ������ ���� �������� ��� �������������������������������������������������������������������������������������� � �������������������������������������������� ������ ���� �������� ���� ������������������������������������������������������������������������������� � ��������������������������������������������������������������������������������� � � ��������������������������������������������������������������������������������� � � ��������������������������������������������������������������������������������� � ���������������������� ����� ����� ���� ������������������������ ������������� �������������������������� ���������������������� ����������������������������������� ����������������������������������� ������������������������������������� �������������������������������������� �������������������������������������� 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 particular 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. ����������������������������������������������������������������������� ������������������������������������� ������������������������������������ ����������������� �������������������������������� ��������������������������������� ���� ��������������������� ������������������
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