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24" BANDSAW
MODEL G7211/G7212
INSTRUCTION MANUAL
COPYRIGHT ©1992 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.
REVISED AUGUST, 2000 PRINTED IN TAIWAN
DISCONTINUED MACHINE MANUAL DISCLAIMER
THE INFORMATION IN THIS MANUAL REPRESENTS THE LAST CONFIGURATION OF THE MACHINE BEFORE IT WAS DISCONTINUED. MACHINE CONFIG-
URATIONS MAY HAVE CHANGED AS PRODUCT IMPROVEMENTS WERE INCORPORATED.
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WARNING Some dust created by power sanding, sawing, grind- ing, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are: • Lead from lead-based paints. • Crystalline silica from bricks, cement, and other masonry products. • Arsenic and chromium from chemically treated lumber. Your risk from these exposures varies, depending on how often you do this type of
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Table Of Contents PAGE 1. SAFETY SAFETY RULES FOR POWER TOOLS ............................................................2-3 ADDITIONAL SAFETY INSTRUCTIONS FOR BANDSAWS ................................4 2. CIRCUIT REQUIREMENTS 220V OPERATION ................................................................................................5 EXTENSION CORDS ............................................................................................5 WIRING DIAGRAM ..................................
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SECTION 1: SAFETY For Your Own Safety Read Instruction Manual Before Operating This Equipment The purpose of safety symbols is to attract your attention to possible hazardous conditions. This manual uses a series of symbols and signal words which are intended to convey the level of importance of the safety messages. The progression of symbols is described below. Remember that safety messages by themselves do not eliminate danger and are not a substitute for proper accident prevention measures. I
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Safety Instructions For Power Tools 9. USE PROPER EXTENSION CORD. Make 16. REDUCE THE RISK OF UNINTENTION- sure your extension cord is in good condi- AL STARTING. On machines with mag- tion. Conductor size should be in accor- netic contact starting switches there is a dance with the chart below. The amperage risk of starting if the machine is bumped or rating should be listed on the motor or tool jarred. Always disconnect from power nameplate. An undersized cord will cause source before adjustin
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Additional Safety Instructions For Bandsaws 1. DO NOT OPERATE WITH DULL OR 7. ALWAYS FEED STOCK EVENLY AND BADLY WORN BLADES. Dull blades SMOOTHLY. Do not force or twist blade require more effort to use and are difficult while cutting, especially when sawing to control. Inspect blades before each use. small radii. 2. NEVER POSITION FINGERS OR 8. THIS MACHINE IS NOT DESIGNED TO THUMBS IN LINE WITH THE CUT. CUT METAL or other material except Serious personal injury could occur. wood. 3. DO NOT OPE
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SECTION 2: CIRCUIT REQUIREMENTS 220V Operation Extension Cords The motor supplied with the G7211 comes We do not recommend the use of extension cords prewired for 220V. Refer to the wiring diagram on 220V equipment. It is much better to arrange supplied at the back of this manual for more spe- the placement of your equipment and the installed cific information about wiring connections. The wiring to eliminate the need for extension cords. G7212 is a 220V, three-phase motor and requires Should it
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3-Phase Operation Notes The Model G7212 has a 7.5 H.P. motor config- ured to operate under three-phase electrical serv- ice. Generally this type of electrical supply is only found in commercial or industrial locations. Connection to three-phase service should only be done by a qualified electrician. If you do not have three-phase service available a phase converter can be utilized in conjunction with a 220V single phase power supply. Refer to the Grizzly catalog for a complete range of phase con
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SECTION 3: INTRODUCTION Most importantly, we stand behind our machines. Commentary If you have any service questions or parts requests, please notify us using one of the follow- ing contacts: We are proud to offer the Models G7211/G7212 24" Bandsaws. These bandsaws are part of a Grizzly Industrial, Inc. growing Grizzly family of fine woodworking 1203 Lycoming Mall Circle machinery. When used according to the guide- Muncy, PA 17756 lines set forth in this manual, you can expect Phone:(570) 546-96
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Unpacking Parts Inventory The bandsaw is shipped from the factory in a Take a quick inventory of the parts and put them carefully packed carton. If you find the machine to aside for assembly later. After all the parts have be damaged after you’ve signed for delivery and been removed from the container, you should the truck and driver are already gone, you will have: need to file a freight claim with the carrier. Save the containers and all packing materials for • Bandsaw Assembly inspection by t
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Clean Up Site Considerations The unpainted surfaces are coated with a waxy oil FLOOR LOAD to protect it from corrosion during shipment. Your G7211/G7212 Bandsaw represents a large Remove this protective coating with a solvent weight load in a small footprint. Most commercial cleaner or citrus-based degreaser such as floors are suitable for the Model G7211/G7212. Grizzly’s G7895 Degreaser. Avoid chlorine-based Some residential floors may require additional solvents as they may damage painted surf
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SECTION 4: ASSEMBLY Fence Most of your G7211/G7212 24'' Bandsaw has been assembled at the factory. Only the fence assembly requires installation. To mount the fence to the bandsaw table: 1. Mount the front rail to the table using two (2) 5 1 /16 - 18 x 2 /2'' Cap Screws and the two (2) Spacers provided. See Figure 2. 2. Loosen the fence lock knob and slide the fence onto the rail. Figure 2. Front rail in place and fence installed. DONOT attempt any step of assembly, adjustments, or maintenance w
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SECTION 5: ADJUSTMENTS Tracking Tension To adjust the tracking: Final blade tension ultimately depends on the type and size of blade you use. To adjust the ten- 1. Disconnect the bandsaw from the power sion: source and open the top and bottom wheel covers. Adjust the upper and lower guide 1. Raise the blade guard to its fully retracted assemblies away from the blade. position. 2. Loosen the lock nut on the tracking knob. 2. Press, with moderate pressure, on the face See Figure 3. Rotate the uppe
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The adjustment knobs on the upper wheel (See Wheel Alignment Figure 6) can be used to correct for deviation in parallelism between the two wheels. Although this has been set at the factory, it is a good idea to check it occasionally to assure proper operation For proper operation of the bandsaw it is impor- of your bandsaw. Loosen the check nuts and tant that the upper and lower wheels be aligned adjust as necessary by turning one knob in and so they are in the same plane. See Figure 5 to the ot
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5. Install your blade of choice. Track and ten- Upper Guides sion as per the instructions in this manual. 6. Move the blade guide assembly so the 1 bearing guides are /16" behind blade gul- Normally Steps 1-4 are implemented prior to lets. Tighten the guide assembly. installing a new blade. Refer to Figure 7 to iden- tify the components of the guide assembly. To 7. Now rotate the bearing guide shafts until the adjust the upper guides: 1 bearings are approximately /64'' from the blade. Hold the s
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Positive Table Stop Blade Guide To adjust the positive stop so the table will be per- Lock Nut pendicular to the blade: 1. Loosen the trunnion lock handle and check nut locking the positive stop adjusting bolt. See Figure 9. 2. Raise the upper blade guide assembly up and stand a machinist’s square or adjustable square on the table next to the Blade Guide Adjuster side of the blade. Adjust the positive stop adjusting bolt to raise or lower the table until Figure 8. Lower blade guide assembly. the
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SECTION 6: OPERATIONS The bandsaw is one of the most versatile Bandsaw Blades machines in the shop. It can cut miters, com- pound angles, simple and complex curves, cir- cles, and a wide variety of irregular shapes. It can also rip and crosscut, as well as cut a variety of A bandsaw blade is a delicate piece of steel sub- joints. The bandsaw will also resaw stock into jected to tremendous strain. Be sure you use thinner boards. quality blades of the proper width for the various types of cutting
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Changing Blades Gullet To remove the blade, ensure the power is discon- nected and: Tooth 1. Loosen tension on the blade by turning the tension control knob. 2. Remove the table insert and table pin. 3. Remove the fence and front fence rail. 4. Adjust upper guide bearings and lower guide blocks away from the blade. 5. Open the upper and lower wheel covers Gullet Line and slide the blade off both wheels. Use caution, the blades are sharp! Figure 10. Side and front views of a standard bandsaw bla
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Changing Speeds The G7211/G7212 24" Bandsaw provides two speeds, 2800 and 3500 FPM, to make cutting easier. In many applications, blade speed is a matter of personal preference. Usually the higher speed will produce the best results, but if the motor is straining while cutting, try a slower blade speed. Blade speed is also affected by the type of wood, denser woods need a different speed than a softer, lighter wood. Ultimately blade speed is a matter of trial and error. Whenever possible test th
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Ripping Stacked Cuts One of the benefits of a bandsaw is its ability to Ripping is the process of cutting a board into two cut multiple copies of a particular shape by stack- or more thinner boards. The maximum board width that can be ripped is limited by the distance ing a number of workpieces together. between the blade and the support column. Maximum cutting width for this bandsaw is 24". Before making stacked cuts, it is essential to ensure that both the table and the blade are prop- The im
