Wen 3970 Manual
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Wen 3970 Manual

Metal bandsaw with stand
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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.
4˝ x 6˝ METAL BANDSAW
IMPORTANT:
NEED HELP? CONTACT US!
Have product questions? Need technical support?
Please feel free to contact us at:
800-232-1195
techsupport@wenproducts.com
WENPRODUCTS.COM
WITH STAND
Model # 3970
bit.ly/wenvideo
(M-F 8AM-5PM CST)

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Summary of Contents for Wen 3970

  • Page 1 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.

  • Page 2: Table Of Contents

    Know Your Band Saw Assembly and Adjustments Maintenance Operation Exploded View & Parts List Warranty TECHNICAL DATA 3970 Model Number: 120 V, 60 Hz, 3/4 HP, 4.6A Motor: Saw Blade: 64-1/2 x 1/2 in. 4 x 6 in. (90°) Cutting Capcity for Square Material: 3-1/2 x 3-1/2 (45°)

  • Page 3: General Safety Rules

    GENERAL SAFETY RULES Safety is a combination of common sense, staying alert and knowing how your item works. SAVE THESE SAFE- TY INSTRUCTIONS. WARNING: To avoid mistakes and serious injury, do not plug in your tool until the following steps have been read and understood. 1.

  • Page 4: Specific Safety Rules For Band Saw

    GENERAL SAFETY RULES 15. DO NOT OVERREACH. Keep proper footing and balance at all times. Wear oil-resistant rubber-soled foot- wear. Keep the floor clear of oil, scrap, and other debris. 16. MAINTAIN TOOLS PROPERLY. ALWAYS keep tools clean and in good working order. Follow instruc- tions for lubricating and changing accessories.

  • Page 5: Electrical Information

    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.

  • Page 6: Know Your Band Saw

    KNOW YOUR BAND SAW 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.
  • Page 7 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 dam- aged part is replaced.

  • Page 8: To Assemble The Stand

    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.
  • Page 9 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.
  • Page 10 ADJUSTMENTS VISE ADJUSTMENT WARNING - Turn off the machine and disconnect from the power supply before doing any adjustments. To use the vise: 1. Loosen the two hex bolts (Fig. K - 1, L - 1). 2. Use the scale as a guide to set your angle (Fig. K - 2). Fig.
  • Page 11 ADJUSTMENTS BLADE SPEED ADJUSTMENT The bandsaw is capable of operating at 80, 120 or 180 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.

  • Page 12: Vertical Cutting

    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.

  • Page 13: Maintenance

    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.

  • Page 14: Operation

    TROUBLESHOOTING PROBLEM CAUSE SOLUTION The motor does not work. Defective motor, power cable or 1. Specialized personnel should plug. check the machine. 2. Close the safety cover. Machine stalls or is underpow- 1. Wrong blade for the workpiece 1. Use a blade with correct prop- ered.

  • Page 15: Exploded View & Parts List

    EXPLODED VIEW AND PARTS LIST...

  • Page 16: Exploded View And Parts List

    EXPLODED VIEW AND PARTS LIST No. Part Number Description Part Number Description 3970-001 Worm gear pulley 3970-056 Bushing 3970-002 Set screw 3970-057 Front blade wheel 3970-003 Pan head screw 3970-058 Set screw 3970-004 Flat washer 3970-059 Retaining ring 3970-005 Flat head screw...
  • Page 17 EXPLODED VIEW AND PARTS LIST No. Part Number Description No. Part Number Description 3970-108 Rear blade guide 3970-163 Cord clamp 3970-109 Shaft 3970-164 Pin with chain 3970-110 Ball bearing 3970-165 Flat washer 3970-111 Retaining ring 3970-166 Pan head screw 3970-112...
  • Page 18 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 con- sumer power tools will be free from defects in material or workmanship for a period of two (2) years from date of purchase.

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