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Operating Instructions & Parts Manual
10-Inch x 16-Inch Horizontal
Cut-Off Band Saw
Models 7020/7040
Part No. 9078341
Revision C4 07/03
WMH TOOL GROUP
2420 Vantage Drive
Elgin, IL 601237
TEL: 1-888-594-5866
FAX: 1-800-626-9676
www.wmhtoolgroup.com
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Table of Contents General Specifications ....................................................................................................................................... 5 Specifications .................................................................................................................................................... 5 General Specifications ....................................................................................................................................
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Table of Contents Replacement Parts ........................................................................................................................................ 21 Parts List - Base .............................................................................................................................................. 23 Parts List - Head ..............................................................................................................................................
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General Specifications The Wilton Models 7020/7040 Horizontal Cut-Off an oil bath, transmits smooth and positivepower to the Bandsaws are ruggedly built, precision machines de- blade. This drive system coupled with the recirculating signed for either wet or dry applications. The 2 HP coolant system keeps the blade running cool and true, motor along with the worm gear reduction drive train in which results in longer blade life. Specifications Capacity 10" Round 10" x 10" Square 9" x 16" Rectang
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- Misuse of this machine can cause serious injury. - Always follow instructions in Operating Instruc- - For safety, machine must be set up, used and tions and Parts Manual when changing acces- serviced properly. sory tools or parts. - Read, understand and follow instructions in the - Never modify the machine without consulting Operating Instructions and Parts Manual which Wilton Corporation. was shipped with your machine. You - the Stationary Power Tool User - Hold When Setting up Machine:
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19. Know the tool you are using — its application, limitations, and potential hazards. General Electrical Cautions Wire Sizes This saw should be grounded in accordance with Caution: For circuits which are far away from the the National Electrical Code and local codes and electrical service box, the wire size must be increased ordinances. This work should be done by a qualified in order to deliver ample voltage to the motor. To mini- electrician. The saw should be grounded to protect mize pow
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Setting Blade Speed Introduction This manual includes the operating and maintenance 1. The blade speed is controlled by an adjustment instructions for the Wilton 10-inch by 16-inch Cut Off mechanism on the right end of the saw. Speed Band Saw, Models 7020/7040. This manual also in- increases when the adjustment knob is turned cludes parts listings and illustrations of replaceable parts. counterclockwise. Speed decreases when the knob is turned clockwise. 2. A placard on the drive belt guard
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Raising/Lowering the Saw Head 1. Lift the saw head using the handle on the far left side of the saw head. 2. To lower the saw head, press the green pushbutton on the right side of the control panel. 3. To adjust the feed rate, adjust the feed rate control valve knob on the top of the saw head (see figure 3). Red Release 4. To lower the saw head with power off, pull and turn Button the red knob (manual override) on the electro-mag- netic valve (see figure 4). Electro- Magnetic Valve Controlli
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Work Setup A minimum of three teeth should be on the work piece at all times for proper cutting. The blade and Securing the Workpiece for workpiece can be damaged if the teeth are so far apart that they straddle the workpiece. Square Cuts For very high production on cutting of special mate- 1. Raise the saw head (refer to Figure 5). rials, or to cut hard-to-cut materials such as stainless steel, tool steel, or titanium, you can ask your industrial 2. Slide the left vise jaw far enough to the
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Set Workpiece Angle place it against the work piece. Against Corner Setting of Right Block Vise Jaw Starting the Saw Left Vise WARNING: NEVER OPERATE THE SAW WITHOUT Jaw BLADE COVERS IN PLACE AND SECURED. Pivot Screw Angle Locking Screw CAUTION: MAKE SURE THE BLADE IS NOT IN CON- TACT WITH THE WORKPIECE WHEN THE MOTOR Figure 6: Adjusting vise IS STARTED. DO NOT DROP THE SAW HEAD ON THE WORKPIECE OR FORCE THE SAW BLADE THROUGH THE WORKPIECE. Angle Block Locking Handle 1. Raise the saw head. W
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Coolant Flow Blade Tracking Hex Adjustment Screws CAUTION: THE COOLANT PUMP MUST BE SUB- MERGED BEFORE OPERATING TO PREVENT DAM- AGE TO THE PUMP. Single Adjustment Screw 1. The blade guides are fitted with coolant fittings. Coolant is provided to the fittings through intercon- necting tubing. The coolant is dispensed directly onto the saw blade. Center Locking 2. Adjust the coolant flow valves on the top, rear of the Screws saw head as required to provide the desired flow. Figure 10: Blade t
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the wheel shoulder. Put a 6-inch length of paper should rarely require adjustment. When adjustment is between the blade and the wheel as shown in figure required, adjust immediately. Failure to maintain proper 11. The paper should not be cut as it passes be- blade adjustment may cause serious blade damage or tween the wheel shoulder and the blade. inaccurate cuts. It is always better to try a new blade when cutting 9. Turn the single hex adjustment screw a small amount. performance is poor.
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the center locking screw with an Allen wrench (see tion of the disk you have cut from the bar stock. Mea- figure 12). sure at the top and bottom of the disk. The saw blade can be considered correctly adjusted 4. Position the bearing by turning the bushing. Set when the variation measure is no more than 0.012 inch the clearance at approximately 0.001 inch. (The across the face of the disk. blade should be in a vertical position between the If you do not have a piece of 2-inch bar stock avail-
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1. Ball bearings: the bearings are lubricated and 8. Check the guide bearings and the carbide guides sealed—periodic lubrication is not required. to make sure they are just contacting the sides of the blade. 2. Blade guide bearing: the bearings are lubricated and sealed—lubrication is not required. Inspect 9. Install the left blade guard making sure there is periodically. ample clearance with the blade. 3. Idler wheel bushing: the bearings are lubricated 10. Make a test cut to make sure
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damaged. 5. Inspect bearings for damage and smooth opera- Pivot tion, Replace if faulty. 6. Install the bearing in the idler wheel. Install the idler Adjustment Nuts wheel on the idler shaft. 7. Install the screw, spring washer and washer in the idler shaft. 8. Install the blade (see Changing blades). Counterbalance Spring Adjusting the Blade Guides Threaded Rod The cut-off saw has adjustable blade guide supports (see figure 17). The blade guide supports allow you to Figure 16: Counterbal
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Refer to Figure 18.1. 1. Remove the cap screw and remove the carbide Replacement of the Wire guide. Discard the carbide guide. 2. Install the replacement carbide guide on the guide Brush bearing support. Install the cap screw. Set the 1. Loosen four knobs securing the blade cover. Lift guide so it just contacts the side of the saw blade. the cover and swing it backward. 3. Using a machinist's square, check squareness of 2. Remove the attaching screw, spring washer and the blade to the t
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4. Close the blade cover and secure with four knobs. source, or that the fuses have been removed or breakers tripped in the circuit in which the saw will Electrical be connected. Make sure you put a warning plac- ard on the fuse or circuit breaker to prevent acci- Observe the following when connecting to the power dental electrical shock. source. (The cut-off saw wiring diagrams are pro- vided in Figures 21 and 22.) 2. If you are installing the motor power cord into a receptacle, make sure t
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Figure 24: Model 7040 cut-off saw wiring diagram 19 Figure 25: Connection diagram for 3ph motor
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Troubleshooting Fault Probable cause Suggested remedy Excessive blade 1. Material loose in vise. 1. Clamp work securely. breakage 2. Incorrect speed or feed. 2. Check Machinist’s Handbook for speed/feed appropriate for the ma- terial being cut. 3. Teeth too coarse for material. 3. Check Machinist’s Handbook for recommended blade type. 4. Incorrect blade tension. 4. Adjust blade tension to the point where the blade just does not slip on the wheel. 5. Saw blade is in contact with 5. Start the moto
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Troubleshooting (Continued) 1. Blade is binding in the cut. 1. Decrease feed pressure. Blade is twisting 2. Blade tension too high. 2. Decrease tension on blade 1. Blade guides worn 1. Replace blade guides. 2. Blade guide bearings not adjusted. 2. Adjust blade guide bearings. Unusual wear on 3. Blade guide bearing bracket is side/back of blade loose. 3. Tighten blade guide bearing bracket. 1. Blade tooth pitch too coarse for 1. Use blade with finer tooth pitch. workpiece. 2. Feed too slow; feed
