Grizzly G9743 Owner's Manual
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Grizzly G9743 Owner's Manual

Grizzly G9743 Owner's Manual

7"x 12" gear head metal-cutting bandsaw
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MODEL G9743
7"x 12" GEAR HEAD
METAL-CUTTING BANDSAW
OWNER'S MANUAL
COPYRIGHT © MARCH, 2006 BY GRIZZLY INDUSTRIAL, INC. REVISED MAY 2009 CR.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
(FOR MODELS MANUFACTURED SINCE 12/07) #PCBL7711 PRINTED IN TAIWAN

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  • Page 1 7"x 12" GEAR HEAD METAL-CUTTING BANDSAW OWNER'S MANUAL COPYRIGHT © MARCH, 2006 BY GRIZZLY INDUSTRIAL, INC. REVISED MAY 2009 CR. WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
  • Page 2 This manual provides critical safety instructions on the proper setup, operation, maintenance, and service of this machine/tool. Save this document, refer to it often, and use it to instruct other operators. Failure to read, understand and follow the instructions in this manual may result in fire or serious personal injury—including amputation, electrocution, or death.

  • Page 3: Table Of Contents

    Table of Contents INTRODUCTION ..........................3 Foreword ............................ 3 Contact Info ..........................3 Identification ..........................6 SECTION 1: SAFETY ........................7 Safety Instructions for Machinery ....................7 Safety Instructions for Metal Cutting Bandsaws ................ 9 SECTION 2: CIRCUIT REQUIREMENTS ..................10 110/220V Operation .........................
  • Page 4 SECTION 8: WIRING ........................32 Wiring Safety Instructions ......................32 Electrical Components ......................33 Electrical Components ......................34 Wiring Diagram......................... 35 SECTION 9: PARTS ........................36 Base/Stand ..........................36 Headstock ..........................37 Misc. Assemblies........................38 Gearbox ............................ 39 Electrical Box..........................40 Parts List ..........................

  • Page 5: Introduction

    INTRODUCTION Foreword Contact Info We are proud to offer the Model G9743 7" x 12" We stand behind our machines! If you have ques- Gear Head Metal-Cutting Bandsaw. This machine tions or need help, contact us with the information is part of a growing Grizzly family of fine met- below.

  • Page 6: Machine Data

    MACHINE DATA SHEET Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901 MODEL G9743 7" X 12" GEARED HEAD METAL‐CUTTING BANDSAW Product Dimensions: Weight................................383 lbs. Width (side-to-side) x Depth (front-to-back) x Height..............56 x 17-1/4 x 59 in.
  • Page 7 The information contained herein is deemed accurate as of 7/31/2017 and represents our most recent product specifications. Model G9743 PAGE 2 OF 3 Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased. Model G9743 (Mfg. since 12/07)

  • Page 8: Identification

    M. Limit Switch D. Blade E. ON/OFF Switch N. Handwheel ⁄ HP Motor O. Positive Locking Handle G. Speed Control Knob P. Vise H. Feed Rate ON/OFF Valve Q. Blade Guides R. Blade Tracking Controls Workstop Model G9743 (Mfg. since 12/07)

  • Page 9: Section 1: Safety

    6. NEVER OPERATE MACHINERY WHEN 3. ALWAYS WEAR AN NIOSH APPROVED TIRED, OR UNDER THE INFLUENCE OF RESPIRATOR WHEN OPERATING DRUGS OR ALCOHOL. Be mentally alert MACHINERY THAT PRODUCES DUST. at all times when running machinery. Model G9743 (Mfg. since 12/07)
  • Page 10 Make sure you know lubricating and changing accessories. what type of dust you will be exposed to 16. MAKE SURE GUARDS ARE IN PLACE and always wear an approved respirator. AND WORK CORRECTLY BEFORE USING MACHINERY. Model G9743 (Mfg. since 12/07)

  • Page 11: Safety Instructions For Metal Cutting Bandsaws

    No list of safety guidelines can be complete. Every shop environment is different. Like all machines there is danger associated with the Model G9743. Accidents are frequently caused by lack of familiarity or failure to pay attention. Use this machine with respect and caution to lessen the possibility of operator injury.

  • Page 12: Section 2: Circuit Requirements

    SECTION 2: CIRCUIT REQUIREMENTS 110/220V Operation Power Connection Device The Model G9743 comes prewired with a NEMA 5-15 plug for connection to power. If you rewire the motor to 220V, we recommend using the plug and receptacle shown in Figure 2 for 220V.

  • Page 13: Section 3: Set Up

    Wear safety glasses dur- ing the entire set up pro- cess! The Model G9743 was carefully packed when it left our warehouse. If you discover the machine is damaged after you have signed for delivery, The Model G9743 is a please immediately call Customer Service at heavy machine.

  • Page 14: Inventory

    —Foot (Cabinet) ......... 2 —Hex Nut ⁄ "-12 (Feet) ......2 —Hex Nut ⁄ "-18 (Handle) ....... 4 —Flat Washer ⁄ " (Handle) ....... 8 —Hex Bolt ⁄ "-18 x 1 ⁄ " (Handle) ..... 4 -12- Model G9743 (Mfg. since 12/07)

  • Page 15: Hardware Recognition Chart

    Hardware Recognition Chart -13- Model G9743 (Mfg. since 12/07)

  • Page 16: Clean Up

    " petroleum products to clean the machinery. Many of the solvents commonly used to clean Figure 4. Minimum G9743 working clearances. machinery can be toxic when inhaled or ingest- ed. Lack of ventilation while using these sol- vents could cause seri-...

  • Page 17: Shipping Bracket

    Figure 5. Removing shipping bracket. Thread the thumb screw into the work stop and slide the work stop over the rod as shown in Figure 7. Thumb Screw Work Stop Figure 7. Work stop installed. Tighten the thumbscrew. -15- Model G9743 (Mfg. since 12/07)

  • Page 18: Handle

    Thread on one ⁄ "-12 hex nut onto each foot. At the handle-end of the cabinet (Figure 8), thread each foot into the cabinet and tighten the hex nuts to lock the feet into place. -16- Model G9743 (Mfg. since 12/07)

  • Page 19: Test Run

    ON/OFF switch at all times during 2. Squaring the Blade (Page 31). the test run (Figure 11). The bandsaw should run smoothly with little or no vibration. 3. Blade Guide Bearings (Page 32). -17- Model G9743 (Mfg. since 12/07)

  • Page 20: Section 4: Operations

    SECTION 4: OPERATIONS Operation Safety Vise The vise on the Model G9743 has a positive lock- ing feature that improves productivity by open- ing the vise jaws just enough to slide material Damage to your eyes, lungs, and ears could through.

  • Page 21: Blade Speed

    Loosen the lock nut with a ⁄ " hex wrench. The Model G9743 has these three blade speeds: Use the scale as a guide to set your angle or 148, 216, and 282 FPM. use a machinist square to square the vise to the blade as shown in Figure 13.

  • Page 22: Blade Selection

    High your needs. Grizzly is proud to offer a variety of selections Figure 17. Filter screen and hose. that can be found in the current catalog and in SECTION 5: ACCESSORIES on Page 25.

  • Page 23: Cutting Fluid

    BIOLOGICAL POISON HAZARD! Use proper personal protection equipment when handling cutting fluid and dispose by following federal, state, and fluid manufacturer requirements to properly dispose of cutting fluid. -21- Model G9743 (Mfg. since 12/07)

  • Page 24: Feed Rate

    Clamp the workpiece in the table vise. Decrease feed rate. Close the feed ON/OFF valve Figure 20, to lock the headstock and blade a few inches Figure 21. Reading chip characteristics. above the workpiece. -22- Model G9743 (Mfg. since 12/07)

  • Page 25: Operation Tips

    • Adjust the blade guides as close as possible to the workpiece to minimize side-to-side blade movement. • Use coolant when possible to increase blade life. -23- Model G9743 (Mfg. since 12/07)

  • Page 26: Section 5: Accessories

    The Blade Tensioning Gauge ensures long blade life, reduced blade breakage, and straight cutting by indicating correct tension. A precision dial indi- cator provides you with a direct readout in PSI. Figure 24. H5408 Blade Tensioning Gauge. -24- Model G9743 (Mfg. since 12/07)

  • Page 27: Section 6: Maintenance

    Change gear box oil (every three months if being used daily). Sight Glass Cleaning Fill Cap Cleaning the Model G9743 is relatively easy. After using your bandsaw, remove excess chips by sweeping and remove any excess coolant with a dry towel. Drain Plug Figure 27.

  • Page 28: Section 7: Service

    2. Blade is at fault. 2. Replace/resharpen blade. 3. Gearbox is at fault. 3. Rebuild gearbox for bad gear(s)/bearing(s). 4. Wrong blade & too slow of speed. 4. Change blade and or speed. -26- Model G9743 (Mfg. since 12/07)

  • Page 29: Bandsaw Operations

    4. The blade is dull. 4. Refer to Changing the Blade on Page 29 and replace the blade. 5. The blade speed is wrong. 5. Refer to Changing Blade Speed on Page 20, and adjust as required. -27- Model G9743 (Mfg. since 12/07)

  • Page 30: Blade Change

    Figure 28. Tension handle and blade. Figure 30. Blade cutting direction. When the blade is around both wheels, adjust the position so the back of the blade is against the shoulder of the wheels. -28- Model G9743 (Mfg. since 12/07)

  • Page 31: Blade Tracking

    (Figure 31). Steps 4-7. 10. Replace the blade guard and blade guide assemblies. 11. Adjust the blade guides as needed. Refer to Blade Guide Bearings on Page 32. -29- Model G9743 (Mfg. since 12/07)

  • Page 32: Blade Tension

    It is always a good idea during the life of your saw life, straight cuts, and efficient cutting. The Model to check and adjust this setting. This adjustment G9743 features a blade tension indicator to assist will improve your cutting results and extend the you with blade tensioning.

  • Page 33: Blade Guide Bearings

    Adjust the eccentric bushing position to achieve the desired clearance. The bearing and blade should make light contact or have a clearance of 0.001"-0.002". Tighten the nut to lock the eccentric bushing and bearing in position. -31- Model G9743 (Mfg. since 12/07)

  • Page 34: Section 8: Wiring

    Technical Support at (570) 546-9663. The photos and diagrams included in this section are best viewed in color. You can view these pages in color at www.grizzly.com. READ ELECTRICAL SAFETY -32- Model G9743 (Mfg. since 12/07) ON PAGE 33!

  • Page 35: Electrical Components

    Figure 38. Coolant pump ON/OFF Switch. Figure 36. Bandsaw ON and E-Stop Switches. Figure 39. Pump junction box. Capacitor Motor Circuit Breaker Figure 37. Auto-shutoff switch. Figure 40. Motor wiring inside junction box. READ ELECTRICAL SAFETY -33- Model G9743 (Mfg. since 12/07) ON PAGE 33!

  • Page 36: Electrical Components

    Electrical Components To ON/OFF Switch To Jct. Box To Auto-Shutoff Switch To Pump To Power Source Figure 41. Main electrical box wiring. READ ELECTRICAL SAFETY -34- Model G9743 (Mfg. since 12/07) ON PAGE 33!

  • Page 37: Wiring Diagram

    ON/OFF Contactor Switch TECO CU-18 Optional 220V Connection Ground Thermal Overload 97NO 98NO 95NC 96NC FN-1748-14 Neutral Ground Ground 220 VAC Ground 110 VAC 6-15 Plug 5-15 Plug READ ELECTRICAL SAFETY -35- Model G9743 (Mfg. since 12/07) ON PAGE 33!

  • Page 38: Section 9: Parts

    SECTION 9: PARTS Base/Stand 750-4 750-3 750-2 750-1 72V2 610-1 84V2 86V2 85V2 751-8 751-7 751-6 751-5 751-4 751-2 751-3 88V2 87V2 751-1 -36- Model G9743 (Mfg. since 12/07)

  • Page 39: Headstock

    Headstock 300-5 263-1 263-2 300-8 300-4 300-6 300-1 300-7 300-9 300-10 300-2 300-3 800-1 264-1 308-5 308-2 308-4 308-3 -37- Model G9743 (Mfg. since 12/07)

  • Page 40: Misc. Assemblies

    292-11 317-11 293-1 317-7 317-10 293-2 294-1 317-6 317-3 317-5 294-2 317-2 317-4 317-1 293-3 317-8 317-9 294-3 235-11 315-1 235-10 315-2 316-1 235-9 235-4 316-2 235-2 315-3 235-12 316-3 235-3 235-1 235-6 235-7 -38- Model G9743 (Mfg. since 12/07)

  • Page 41: Gearbox

    800-44 800-16 800-44 800-45 800-17 800-21 800-20 800-55 800-39 800-54 800-43 800-38 800-22 800-19 800-18 800-40 800-37 800-27 800-40 800-33 800-26 800-31 800-41 800-24 800-30 800-42 800-23 800-41 800-39 800-25 800-28 800-51 800-29 800-52 -39- Model G9743 (Mfg. since 12/07)

  • Page 42: Electrical Box

    Electrical Box 261-17 261-11 261-4 261-12 261V2-9 261V2-3 261-18 261-13 261V2-5 261-16 261V2-6 261V2-1 261-8 261-18 261V2-10 261V4-2 261-15 261-14 -40- Model G9743 (Mfg. since 12/07)

  • Page 43: Parts List

    HEX BOLT 5/16-18 X 3/4 PN08 HEX NUT 3/8-16 P9743210 SHUT-OFF SWITCH TAB P4030164 CYLINDER PW06 FLAT WASHER 1/4 PSB29 CAP SCREW 3/8-16 X 2-1/4 PSB01 CAP SCREW 1/4-20 X 5/8 PLW04 LOCK WASHER 3/8 -41- Model G9743 (Mfg. since 12/07)
  • Page 44 P9743261-17 POWER CABLE 315-2 P608 BEARING 608 261-18 PS04 PHLP HD SCR 1/4-20 X 1/2 315-3 PR40M INT RETAINING RING 26MM P9473263 CONTROL BOX P9743316 GUIDE PIVOT (LEFT) ASSY 263-1 P9473263-1 PUSH BUTTON SWITCH -42- Model G9743 (Mfg. since 12/07)
  • Page 45 P9743606 READ MANUAL LABEL 800-30 P6007 BEARING 6007 P9743607 SAFETY GLASSES LABEL 800-31 PR38M INT RETAINING RING 62MM P9743608 UNPLUG LABEL 800-33 P9743800-33 OIL SEAL G8588 GRIZZLY LOGO PLATE 800-37 P9743800-37 DRIVE GEAR SHAFT -43- Model G9743 (Mfg. since 12/07)
  • Page 46 800-54 P9743800-54 PLUG 800-45 PSBS06M BUTTON HD CAP SCR M5-.8 X 12 800-55 P9743800-55 SIGHT GLASS 800-46 P9743800-46 PLUG 800-56 P9743800-56 O-RING 800-47 PSB02M CAP SCREW M6-1 X 20 800-57 PR66M INT RETAINING RING 25MM -44- Model G9743 (Mfg. since 12/07)

  • Page 47: Notes

    Notes -45- Model G9743 (Mfg. since 12/07)

  • Page 48: Warranty And Returns

    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.

  • Page 49: Warranty Card

    Would you recommend Grizzly Industrial to a friend? _____ Yes _____No Would you allow us to use your name as a reference for Grizzly customers in your area? Note: We never use names more than 3 times. _____ Yes _____No 10.
  • Page 50 FOLD ALONG DOTTED LINE Place Stamp Here GRIZZLY INDUSTRIAL, INC. P.O. BOX 2069 BELLINGHAM, WA 98227-2069 FOLD ALONG DOTTED LINE Send a Grizzly Catalog to a friend: Name_______________________________ Street_______________________________ City______________State______Zip______ TAPE ALONG EDGES--PLEASE DO NOT STAPLE...
  • Page 52 Buy Direct and Save with Grizzly – Trusted, Proven and a Great Value! ® Visit Our Website Today And Discover Why Grizzly Is The Industry Leader! ® • SECURE ORDERING • ORDERS SHIPPED WITHIN 24 HOURS • E-MAIL RESPONSE WITHIN ONE HOUR...

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