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19

  If the blade is thicker at the 

weld than at the rest of the blade, using the 
blade may damage the guides.
 

20. When grinding, do not hit the teeth, or grind 

deeper than the thickness of the blade; or 
burn or overheat the weld area. Be sure to 
remove flash from the back edge of the 
blade. Any flash or “stub” teeth which 
project beyond the normal set or height of 
the other teeth must be ground off.  

Clean Up 

It is very important that the clamp jaws be kept 
clean at all times. The jaws or inserts must be 
wiped or scraped clean after every weld. Doing 
this will ensure better welds by holding proper 
alignment, preventing flash from becoming 
embedded in the blade, and preventing shorts or 
poor electrical contact. 

Blade Selection 

Using the proper blade for the job will increase 
the operating efficiency of your band saw, help 
reduce necessary saw maintenance, and 
improve your productivity. Thus, it is important to 
follow certain guidelines when selecting a saw 
blade. Blade breakage, teeth stripping, crooked 
cuts, and other common complaints are, in most 
instances, caused by using the wrong blade. 

Consider these factors when selecting a blade: 

• 

The type of material you will be cutting. 

• 

The thickness of the workpiece. 

• 

The features of the workpiece, such as 
bends or curves with small radii. 

These factors are important because they 
involve basic concepts of saw blade design. 
There are six blade features that are normally 
changed to meet certain sawing requirements: 

1. width 
2. gage 
3.  pitch (number of teeth per inch) 
4.  tooth form (or shape) 
5.  the “set” of the teeth 
6.  the blade material itself 

Width 

Band saw width is measured from the back of 
the blade to the tip of the tooth. Always use the 
widest blade possible that still performs the 
needed job. Generally, wider blades are used 
for straight cutting. Narrower blades are used 
when the part being cut has curves with small 
radii. Refer to the chart in Figure 22 to select a 
width for radius cutting.  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The radii in this chart are all based on cutting 1-inch thick 
mild steel and using manual feed. In order to cut a close 
tolerance radius the following factors, in addition to the blade 
width, must be considered: thickness, machinability, feed 
force and the location of the pivot point. Heavy feed in thick 
work, for example, results in a barrel-shaped cut. 

Figure 22 

 

Содержание VBS-3612

Страница 1: ...tions and Parts Manual 36 inch Metalworking Band Saw Model VBS 3612 WMH TOOL GROUP 2420 Vantage Drive Elgin Illinois 60124 Part No M 414470A Ph 800 274 6848 Revision A1 9 06 www wmhtoolgroup com Copyright WMH Tool Group ...

Страница 2: ...postage prepaid to a location designated by us For the name of the location nearest you please call 1 800 274 6848 You must provide proof of initial purchase date and an explanation of the complaint must accompany the merchandise If our inspection discloses a defect we will repair or replace the product or refund the purchase price at our option We will return the repaired product or replacement a...

Страница 3: ...k Table with Blade 14 Auxiliary Table 14 Replacing Drive Belts 14 Work Lamp Bulb 15 Band Saw Operation 15 Blade Break In Procedure 15 Setting Blade Speed 15 Evaluating Cutting Efficiency 16 Welder Operation 16 Shearing 16 Removing Teeth 17 Welding 17 Annealing 18 Blade Selection 19 Width 19 Gage 20 Pitch 20 Shape 20 Set 21 Material 21 Blade Breakage 21 Speed and Pitch Chart 23 Typical Band Saw Ope...

Страница 4: ...c and chromium from chemically treated lumber Your risk of exposure varies depending on how often you do this type of work To reduce your exposure to these chemicals work in a well ventilated area and work with approved safety equipment such as face or dust masks that are specifically designed to filter out microscopic particles 10 Do not operate this machine while tired or under the influence of ...

Страница 5: ...hine until the blade comes to a complete stop 29 Remove loose items and unnecessary work pieces from the area before starting the machine 30 Never place hands directly in line with the saw blade 31 Always use push sticks when cutting small material 32 Raise or lower the blade guide only when the machine has been turned off and the blade has stopped moving 33 Always wear leather gloves when handlin...

Страница 6: ...ached at our web site www wmhtoolgroup com Specifications Model Number VBS 3612 Stock Number 414470 Blade Speeds SFPM Low 50 410 High 540 4925 Height Capacity Maximum in 12 Throat Capacity Maximum in 36 Table Size Main L x W in 23 5 8 x 27 1 2 Table Size Auxiliary L x W in 17 3 4 x 27 1 2 Table Height at 90 in 40 Table Tilt deg 10 L 45 R Welder KVA 4 2 Blade Length approx in 195 1 4 198 1 4 Blade ...

Страница 7: ...ock Knob 10 Guide Post Raise Lower Handwheel 11 Blade Tracking Knob 12 Electrical box 13 Blade Speed readout SFPM 14 Power Indicator Light 15 Control Panel Lockout 16 Emergency Stop Button 17 Blade Start Button 18 Blade Stop Button 19 Shear 20 Weld Switch 21 Anneal Switch 22 Clamp Pressure Selector 23 Clamp Jaws 24 Grinding Wheel Switch 25 Grinding Wheel 26 Clamp Handles 27 Blade Tension Gauge 28 ...

Страница 8: ...instruction manual thoroughly for assembly maintenance and safety instructions Contents of the Shipping Container 1 Band Saw 1 Fence 1 Feed Screw 1 Miter Gauge 1 Circle Cutting Attachment 1 Shear 1 Tool box containing 1 Reversible Screwdriver 2 Socket Head Cap Screws 5 16 x 1 2 Socket Head Cap Screws 5 16 x 5 8 1 Eye Bolt 1 Knob 1 Set of Hex Wrenches 1 Wrench 26mm 1 Set of Keys for control panel 1...

Страница 9: ...ine The Band Saw may be further stabilized by securing it to the floor using lag screws through the four holes in the stand Areas of the Band Saw have been given a protective coating at the factory This should be removed with a soft cloth moistened with kerosene or mineral spirits Do not get solvents near plastic or rubber parts and do not use an abrasive pad as it may scratch metal surfaces Fence...

Страница 10: ... on the motor plate of the Band Saw The machine should be connected to a dedicated circuit Extension cords The use of an extension cord is not recommended for this Band Saw But if one is necessary make sure the cord rating is suitable for the amperage listed on the machine s motor plate An undersize cord will cause a drop in line voltage resulting in loss of power and overheating Use the chart in ...

Страница 11: ...lt the diagrams on pages 40 and 41 for clarification of each of these changes on 230V to 460V conversion Three Phase Test Run After wiring the band saw you should check that the wires have been connected properly Connect machine to the power source and turn it on for an instant to watch the direction of blade movement If the blade runs upward instead of downward disconnect machine from power and s...

Страница 12: ...time release tension on the blade this will prolong its life First make a note of the specific tension setting for that blade The tension can then be re established quickly when operations are resumed Blade Tracking 1 Disconnect machine from power source 2 Open the top blade wheel doors 3 Move the gear shift lever into neutral position straight down 4 Move the upper and lower blade guides away fro...

Страница 13: ...8 behind the blade teeth See Figure 8 3 Tighten the hex cap screws securely 4 This procedure should be done for both upper and lower guide housings 5 Loosen the socket head cap screws Figure 9 on the blade guides 6 Move the blade guides so they are as close to the blade as possible without touching it 7 Tighten the socket head cap screws Figure 9 8 This procedure should be done for both upper and ...

Страница 14: ...e left or right loosen the screws A Figure 12 and turn one of the stops B Figure 12 as needed Re tighten screws A Figure 12 securely after adjustment 3 To adjust the table front to back loosen screws C Figure 12 Re tighten screws securely after adjustment Replacing Drive Belts See Figure 13 1 Disconnect machine from power source 2 To remove the motor drive belt loosen the four screws at the base o...

Страница 15: ...section of round stock 2 Operate the saw at low speed Start the cut with a very light feed rate 3 When the saw has completed about 1 3 of the cut increase the feed rate slightly and allow the saw to complete the cut 4 Keep the feed rate at the same setting and begin a second cut on the same or similar workpiece 5 When the saw has completed about 1 3 of the cut increase the feed rate while watching...

Страница 16: ...ost efficient rate Welder Operation Wear eye protection while operating the welder Use care when handling the blade after welding to avoid burns The welding procedure involves the following steps Shearing the blade grinding teeth to allow for the weld area the actual welding inspection of the blade annealing grinding and a final inspection of the blade This procedure can be accomplished using the ...

Страница 17: ...mp Then position the end of the blade midway between the left and right clamps Tighten the left clamp 7 Insert the other end of the blade in the right clamp Position the back edge of the blade against the back of the right clamp Then butt the end of the blade against the other end of the blade the blade ends need to be in contact with each other Tighten the right clamp 8 Set the pressure selector ...

Страница 18: ...rea is centered between the clamps Secure the blade in the jaws with the clamp handles 16 Quickly press and release jog the anneal button Figure 18 Repeat the press and release process until you see a slightly red glow from the weld area Do not press and hold the anneal push button The weld will be overheated and will fail due to the excessive heat 17 Release both blade clamps allow the blade to c...

Страница 19: ... instances caused by using the wrong blade Consider these factors when selecting a blade The type of material you will be cutting The thickness of the workpiece The features of the workpiece such as bends or curves with small radii These factors are important because they involve basic concepts of saw blade design There are six blade features that are normally changed to meet certain sawing requir...

Страница 20: ... order to get clean cuts Using a blade with too few teeth may cause vibration and a rough cut while too many teeth may cause the gullets to fill with shavings and overheat the blade As a general rule use a blade that will have no fewer than 6 and no more than 12 teeth in the workpiece at any given time The chart on page 23 will aid in determining pitch for a particular job Shape Figure 24 shows co...

Страница 21: ...also when the thickness of the workpiece changes such as cutting hollow tubing or structurals The Straight set has teeth in a consistent alternating pattern which is good for fast basic cuts where a fine finish is not important This set is also popular for cutting wood and plastics Material Some of the most common blade materials include Carbon Steel Blade widely used because of its general adapta...

Страница 22: ... through the grease fitting also add grease as needed to the worm gear If the power cord is worn cut or damaged in any way have it replaced immediately Figure 26 The chart Figure 27 identifies areas that require cleaning and or lubricating Use good quality general purpose lubricants Machine Part Lubricant Frequency Bearings Machine oil Wipe down every day and lubricate every 6 months Rack and slid...

Страница 23: ...23 Speed and Pitch Chart ...

Страница 24: ...24 Typical Band Saw Operations ...

Страница 25: ...gnment Blade speed too fast Use slower speed Wrong blade for the job Use proper blade for workpiece Blade quickly becomes dull Feed rate excessive Decrease feed rate Dull blade Sharpen or replace blade Guide post not fixed properly Fix guide post in position Blade not tensioned enough Increase tension Blade warps Blade not 90 to table Adjust table perpendicular to blade see page 14 Band Saw not re...

Страница 26: ... amps on the motor as noted on the motor plate If amp setting is correct then there is probably a loose electrical lead Check amp setting on motor starter Building circuit breaker trips or fuse blows Verify that band saw is on a circuit of correct size If circuit size is correct there is probably a loose electrical lead Check amp setting on motor starter Switch or motor failure how to distinguish ...

Страница 27: ... to appropriate wiring diagrams on pages 40 and 41 to make any needed corrections Machine will not start restart or repeatedly trips circuit breaker or blows fuses Switch failure If the start stop switch is suspect you have two options Have a qualified electrician test the switch for function or purchase a new start stop switch and establish if that was the problem on changeout Extension cord too ...

Страница 28: ...p jaws not aligned correctly Make corrections as needed Weld is weak and incomplete possible blow holes see Figure 19 Cut and re weld the blade ends Weld has been ground too thin Cut and re weld the blade ends Weld breaks when used Weld is not annealed correctly Follow annealing instructions on page 18 Pressure knob not set correctly Make appropriate adjustment Improper clamping procedures Follow ...

Страница 29: ...e can not be tightly clamped with the clamp jaws Lower jaw inserts are out of order Replace lower jaw inserts Annealing switch connection is poor Change the annealing switch Annealing doesn t occur when the annealing button is pushed Fuse is blown Replace fuse Annealing button will not return to correct position after it is released Annealing button has dust or debris around it Remove the annealin...

Страница 30: ...aft 1 26 VBS3612 126 Retaining Ring 30mm 1 27 VBS3612 127 Main Shaft Cover 1 28 VBS3612 128 Oil Seal Ф58 x Ф40 x 8mm 1 29 VBS3612 129 Speed Changing Shaft 1 30 VBS3612 130 Speed Changing Arm 1 31 TS 0561011 Hex Nut 1 4 20 3 32 VBS3612 132 Shaft Stopper 1 33 TS 0270051 Socket Set Screw 5 16 18 x 1 2 1 34 VBS3612 134 Spring 1 35 VBS3612 135 Slide Block 1 36 VBS3612 136 Clutch 1 37 VBS3612 137 Brass ...

Страница 31: ...ircle Cutting Attachment 1 82 TS 0208061 Socket Head Cap Screw 5 16 18 x 1 2 83 VBS3612 183 Hex Cap Screw 1 4 20 x 2 3 4 1 84 VBS3612 184 Holding Jaw 1 85 VBS3612 185 Feed Screw 1 86 VBS3612 186 Magnifying Glass 1 87 TS 1533032 Phillips Pan Head Machine Screw M5 x 10 2 88 TS 1550031 Flat Washer M5 2 89 VBS3612 189 Blade Guide Support 1 90 VBS3612 190 Blade Guide Support 1 91 VBS16 132 Blade Guides...

Страница 32: ...VBS2012 3113 Slider Pin 1 142 VBS2012 3120 Wheel Elevation Shaft 1 143 VBS2012 3121 Spring 1 144 VBS2012 3150 Washer 1 145 VBS2012 3180 Indicator Rings 3 146 VBS2012 3190 Tension Indicator 1 147 VBS2012 3200 Wheel Tilt Adjuster 1 148 VBS2012 3220 Wheel Tilt Connector 1 149 VBS2012 3240 Connector Washer 1 150 VBS3612 1150 Connector Housing 1 151 TS 1504041 Socket Head Cap Screw M8 x 20 3 152 VBS201...

Страница 33: ...rew M6 x 15 3 201 VBS3612 1201 Fuse Holder 2 202 VBS3612 1202 Fuse Holder 1 203 VBS3612 1203 Wire Housing 3 204 VBS3612 1204 Ground Seat 1 205 VBS3612 1205 Electrical Box 1 206 TS 1502081 Socket Head Cap Screw M5 x 35 2 207 VBS3612 1207 Wiring Plate 1 208 TS 0810012 Round Head Screw 10 24 x 1 4 4 209 VBS3612 1209 Wiring Duct 1 210 VBS3612 1210 Control Plate 1 211 VBS3612 1211 Copper Pan Head Screw...

Страница 34: ...VBS2012 7220 Variator Disk Lower Outer 1 243 VBS2012 7230 Variator Disk Lower Inner 1 244 VBS2012 7250 Variator Shaft 1 245 VBS3612 1245 Key 6 X 60mm 1 246 VBS3612 1246 Shaft Housing 1 247 VBS2012 7290 Spacer 1 248 VBS3612 1248 Socket Head Cap Screw 10 24 x 5 8 3 249 VBS3612 1249 Pulley 4 1 8 A2 1 250 VBS3612 1250 Speed Readout Detector 1 251 VBS1220M 661 Digital Tachometer 1 252 BB 6204 Ball Bear...

Страница 35: ...35 VBS 3612 Band Saw ...

Страница 36: ...36 VBS 3612 Band Saw ...

Страница 37: ... 2 24 PR EV 6071 Clamp Lever Left 1 25 PR EV 6100 Clamp Support Right 1 26 PR EV 6101 Clamp Support Left 1 27 PR EV 6110 Clamp Plate Right 1 28 TS 1533032 Phillips Pan Head Machine Screw M5 x 8 4 29 TS 1551031 Lock Washer M5 2 30 PR EV 6111 Clamp Plate Left 1 31 PR EV 6120 Retaining Ring Re7 2 32 PR EV 6130 Moving Jaw 1 33 TS 1502031 Socket Head Cap Screw M5 x 12 2 34 JWG34 615 Weld Button 1 36 PR...

Страница 38: ...2 6900 Arm Housing Adjust 1 83 VBS2012 6910 Housing Adjust Screw 1 84 VBS2012 6920 Lamp Arm Housing 1 85 VBS2012 6930 Holder Upper 6920 1 86 TS 1502081 Socket Head Bolt 5 X 35mm 2 87 VBS3612 287 Holder Lower 6290 1 88 VBS2012 6950 Lamp Socket 1 89 VBS3612 289 Washer 2 90 VBS3612 290 Nut 1 91 TS 1550071 Flat Washer 10mm 1 92 VBS3612 292 Rotating Button 1 93 VBS2012 9040 Brass Handwheel 1 94 PR EV 1...

Страница 39: ...39 Welder Shear and Work Lamp Assemblies ...

Страница 40: ...40 Electrical Connections 3Ph 230 460V ...

Страница 41: ...B2 Anneal On Green HL Indicator Light Green KM Contactor SB3 Emergency Stop Red EL Lamp 60W 115V FR Overload Relay SB4 Main Motor Off Red QS General Switch T2 Transformer SB5 Main Motor On Green SQ1 Safety Switch SA1 Grinder Motor On SQ2 Safety Switch SA2 Work Lamp On Black SQ5 Weld Auto Stop ...

Страница 42: ...42 Electrical Box see page 41 for identification of parts ...

Страница 43: ...43 ...

Страница 44: ...44 WMH Tool Group 2420 Vantage Drive Elgin Illinois 60124 Phone 800 274 6848 www wmhtoolgroup com ...

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