4˝ x 6˝ METAL BANDSAW WITH STAND Model # 3970 bit.ly/wenvideo IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability, ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged, trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use your tool properly and for intended purpose, you will enjoy years of safe, reliable service.
TABLE OF CONTENTS Technical Data General Safety Rules Specific Safety Rules For Band Saw Electrical Information Know Your Band Saw Assembly and Adjustments Maintenance Operation Exploded View & Parts List Warranty 2 3 4 5 7 8 14 15 18 21 TECHNICAL DATA 3970 120 V, 60 Hz, 3/4 HP, 4.6A 64-1/2 x 1/2 in. 4 x 6 in. (90°) 3-1/2 x 3-1/2 (45°) 4-1/2 in. diameter (90°) Cutting Capacity for Circular Material: 3-1/2 in.
GENERAL SAFETY RULES Safety is a combination of common sense, staying alert and knowing how your item works. SAVE THESE SAFETY INSTRUCTIONS. WARNING: To avoid mistakes and serious injury, do not plug in your tool until the following steps have been read and understood. 1. READ and become familiar with this entire instruction manual. LEARN the tool’s applications, limitations, and possible hazards. 2. AVOID DANGEROUS CONDITIONS. Do not use power tools in wet or damp areas or expose them to rain.
GENERAL SAFETY RULES 15. DO NOT OVERREACH. Keep proper footing and balance at all times. Wear oil-resistant rubber-soled footwear. Keep the floor clear of oil, scrap, and other debris. 16. MAINTAIN TOOLS PROPERLY. ALWAYS keep tools clean and in good working order. Follow instructions for lubricating and changing accessories. 17. CHECK FOR DAMAGED PARTS. Check for alignment of moving parts, jamming, breakage, improper mounting, or any other conditions that may affect the tool’s operation.
ELECTRICAL INFORMATION GROUNDING INSTRUCTIONS IN THE EVENT OF A MALFUNCTION OR BREAKDOWN, grounding provides the path of least resistance for an electric current and reduces the risk of electric shock. This tool is equipped with an electric cord that has an equipment grounding conductor and a grounding plug. The plug MUST be plugged into a matching outlet that is properly installed and grounded in accordance with ALL local codes and ordinances. DO NOT MODIFY THE PLUG PROVIDED.
KNOW YOUR BAND SAW E F G A H B I C J K D L A B C D E F G H I J K L Blade Tension Adjustment Knob Feed Rate Adjustment Handle Vise Adjustment Handle Power Switch Blade Guard Adjustment Knob Belt House Motor Blade Blade Guard Uniform Length Stop Wheel Transport Handle WARNING: For your own safety, read the instruction manual before operating the band saw. 1. Wear eye protection. 2. Do not wear gloves, a necktie, jewelry, or loose clothing. 3.
ASSEMBLY UNPACKING Carefully unpack the band saw and all its parts, and compare against the list below. Do not discard the carton or any packaging until the band saw is completely assembled. WARNING: If any part is missing or damaged, do not plug in the band saw until the missing or damaged part is replaced. 4 1 7 5 8 13 2 10 9 14 3 15 6 11 16 12 17 TABLE OF LOOSE PARTS 1. Band Saw (1) 2. Stand Legs A (2) 3. Stand Legs B (2) 4. Table (1) 5. Table Support (1) 6. Transport Handle (1) 7.
ASSEMBLY TO ASSEMBLE THE STAND 1. With the help of an assistant, lift the bandsaw onto a suitable support (Fig.A). 2. Attach the legs to the bandsaw with the M8-1.25 x 25 hex bolts, 8mm flat washers, 8mm lock washers and the M8-1.25 hex nuts. Hand tighten. 3. Attach the short brace to the legs with the M6-1.0x16 carriage bolts, 6mm flat washers, 6mm lock washers and M6-1.0 hex nuts. Hand tighten. 4. Lift the bandsaw onto the floor. Attach the long brace to the legs with M6-1.
ASSEMBLY TO ASSEMBLE THE STAND (CONT.) 7. Check to see if the bandsaw is relativly level, then the tighten all of the nuts using the necessary wrenches. 8. Insert the handle into the pre-drilled holes on the legs opposite of the wheels. Secure the handle in place with the cotter pin (Fig. E). 9. Remove the screws and washers from where the belt house needs to be mounted. Place the belt house over the motor and gear shafts. Secure it with the removed screws and washers (Fig. F & Fig. G). 10.
ADJUSTMENTS VISE ADJUSTMENT WARNING - Turn off the machine and disconnect from the power supply before doing any adjustments. 1 To use the vise: 1. Loosen the two hex bolts (Fig. K - 1, L - 1). 2 2. Use the scale as a guide to set your angle (Fig. K - 2). Fig. K 3. Tighten the hex bolts (Fig. K - 1, L - 1). 4. Loosen the hex bolt on the opposite jaw so the jaw can float. Match the angle of the workpiece and retighten the hex bolt. 1 5. Tighten the vise against the workpiece.
ADJUSTMENTS BLADE SPEED ADJUSTMENT The bandsaw is capable of operating at 80, 120 or 200 FPM. The speed can easily be adjusted by changing the v-belt placement (Fig. O). To change the blade’s speed: 1. Loosen the motor lock bolt (Fig. P - 1) to allow the motor to pivot freely. 2. Raise the motor to relieve the belt tension and position the belt into the desired pulley alignment. 3. Release the motor and let ts weight tension the belt. 4. Tighten the motor lock bolt back against the frame of the band saw.
OPERATION HORIZONTAL CUTTING (FIG. R) Use the work stop to quickly and accurately cut multiple pieces of stock to the same length. Clamp the material firmly in the vise jaws to ensure a straight cut through the material. Let the blade reach full speed before engaging the workpiece. Never start a cut with the blade in contact with the workpiece. Chips should be curled and silvery. If the chips are thin and powder-like, increase your feed rate. If the chips are burned, reduce the blade speed. Fig.
MAINTENANCE WARNING: Turn off the machine and disconnect the power supply before conducting any maintenance work or adjusting any settings. CHANGING THE SAW BLADE 1. Raise the head of the bandsaw to a vertical position. Use the head locking pin to hold it in place, then remove the wheel access cover. 2. Loosen the tension knob and slip the blade off of the wheels. 3. Install the new blade through both blade guide bearings and around the bottom wheel. 4.
TROUBLESHOOTING PROBLEM The motor does not work. Machine stalls or is underpowered. CAUSE 1. Defective motor, power cable or plug. 2. Safety cover is open; interlock switch does not work. 1. Wrong blade for the workpiece material (metal). 2. Feed rate too fast for task. 3. V-belt is slipping. SOLUTION 1. Specialized personnel should check the machine. 2. Close the safety cover. 1. Use a blade with correct properties for your type of cutting. 2. Decrease the feed rate. 3.
EXPLODED VIEW AND PARTS LIST 15
EXPLODED VIEW AND PARTS LIST No. Part Number Description QTY.
EXPLODED VIEW AND PARTS LIST No. Part Number Description QTY.
LIMITED TWO YEAR WARRANTY WEN Products is committed to build tools that are dependable for years. Our warranties are consistent with this commitment and our dedication to quality. LIMITED WARRANTY OF WEN CONSUMER POWER TOOLS PRODUCTS FOR HOME USE GREAT LAKES TECHNOLOGIES, LLC (“Seller”) warrants to the original purchaser only, that all WEN consumer power tools will be free from defects in material or workmanship for a period of two (2) years from date of purchase.