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 28

Symptom 

Probable Cause 

Correction * 

Blade breaks 
prematurely. 
 
 
 
 
 

Feed force too great. 

Reduce feed force. 

Blade pitch too coarse. 

Refer to blade selection chart; use finer 
pitch blade. 

Guide bearings not properly supporting 
blade. 

Check guide bearings for correct 
position and signs of wear. Adjust or 
replace as needed. 

Blade tensioned too tightly. 

Reduce tension. 

Blade breaks close to 
weld. 

Blade overheated during welding. 

Have blade annealed, or eliminate brittle 
part and weld correctly. 

Blade cooled too rapidly after welding. 

Have blade annealed, or eliminate brittle 
part and weld correctly. 

Premature dulling of 
saw teeth. 

Blade pitch too fine. 

Refer to blade selection chart. Use blade 
with coarser pitch. 

Feed pressure too light. 

Increase feed pressure. 

Cutting rate too low. 

Increase feed pressure and cutting rate. 

Incorrect choice of blade. 

Re-examine material. Select proper 
blade from chart. 

Chipped tooth or foreign object lodged in 
cut. 

Stop saw and remove lodged particle. 
Replace blade if damaged. 

 

*  

WARNING:

 Some corrections may require a qualified electrician. 

 
 
 
 

 

Summary of Contents for JWBS-15

Page 1: ...S 20 JET 427 New Sanford Road LaVergne Tennessee 37086 Part No M 714600 Ph 800 274 6848 Edition 5 09 2018 www jettools com Copyright 2017 JET JWBS 20 shown For serial nos JWBS 15 17120226 and higher J...

Page 2: ...han using your hand and it frees both hands to operate tool 11 Disconnect tools before servicing when changing accessories such as blade bits cutters and the like 12 Direction of feed Feed work into a...

Page 3: ...s to a complete stop 39 Remove loose items and unnecessary work pieces from area before starting machine 40 Keep hands out of line of saw blade 41 Don t use in dangerous environment Do not expose mach...

Page 4: ...18 3 JWBS 20 3 JWBS 20 5 14 6 4 Circuit Information all models 14 6 5 Extension cords 14 7 0 Adjustments 15 7 1 Aluminum resaw fence 15 7 2 Fence fine adjust 15 7 3 Table tilt 15 7 4 Adjusting 90 degr...

Page 5: ...Assembly Parts List 43 13 10 1 JWBS 18 Bandsaw Assembly Exploded View 44 13 10 2 JWBS 18 Bandsaw Assembly Parts List 46 13 11 1 JWBS 18 20 Rip Fence Assembly Exploded View 49 13 11 2 JWBS 18 20 Rip Fe...

Page 6: ...e of stock etc Additional knowledge can be obtained from experienced users or trade articles Whatever accepted methods are used always make personal safety a priority If there are questions or comment...

Page 7: ...56 thk 6 TPI Main Materials Table ground cast iron ground cast iron Trunnion cast iron cast iron Frame steel steel Band wheels cast iron cast iron Tires yellow polyurethane yellow polyurethane Blade g...

Page 8: ...und cast iron ground cast iron Trunnion cast iron cast iron Frame steel steel Band wheels cast iron cast iron Tires polyurethane polyurethane Blade guides ball bearing ball bearing Resaw fence extrude...

Page 9: ...5 thk 3 TPI Main Materials Table ground cast iron ground cast iron Trunnion cast iron cast iron Frame steel steel Band wheels cast iron cast iron Tires rubber rubber Blade guides ball bearing ball bea...

Page 10: ...10 4 4 Base Hole Centers Figure 4 1 base hole centers millimeters...

Page 11: ...and saw except for the transport skid on the bottom Inspect the machine for damage Report any damage to your distributor and shipping agent Do not discard packing material until machine is assembled a...

Page 12: ...vel insert with table 8 Install slot handle assembly HP6 and tighten Figure 5 3 Figure 5 4 Figure 5 5 5 7 Installing guide rail Refer to Figure 5 6 1 Attach guide rail E to table by inserting the two...

Page 13: ...e that is green with or without yellow stripes is the equipment grounding conductor If repair or replacement of the electric cord or plug is necessary do not connect the equipment grounding conductor...

Page 14: ...outlet having the same configuration as the plug No adapter is available or should be used with this tool If the tool must be reconnected for use on a different type of electric circuit the reconnecti...

Page 15: ...fence lock knob A Figure 7 3 7 3 Table tilt Refer to Figure 7 4 1 Disconnect machine from power source 2 Loosen lock handle D 3 Tilt table up to 45 degrees to the right as viewed from operator side o...

Page 16: ...e post cover out of the way Figure 7 6 7 Swing lower guard H Figure 7 7 to the left Tilt table slightly if more clearance is needed to swing guard 8 Remove dust block J Figure 7 8 9 Carefully remove b...

Page 17: ...e tension lever to Partial Tension position this will prolong the blade s life Figure 7 9 Figure 7 10 7 8 Adjusting blade tension lever The blade tension lever has an adjustment screw or stop bushing...

Page 18: ...10 Move tension lever to Full Tension position and connect band saw to power Turn it on for a brief time to observe blade in action through tracking window 11 If further adjustments are needed disconn...

Page 19: ...lize the moving blade 1 Loosen lock knob D and slide thrust bearing up to back of blade 2 Adjust thrust bearing until space between groove bottom and back edge of blade is approximately 0 015 1 64 Tig...

Page 20: ...blade see sect 7 11 Also the table must be square with blade see sect 7 4 4 Loosen lock knob L Figure 7 20 and raise guide post to a high position 5 Confirm that guide post travels straight up and do...

Page 21: ...hten 10 Loosen motor lock handle A Figure 7 21 and allow motor to lower Check tension by pushing with moderate pressure on the belt halfway between the pulleys An adequately tensioned belt will deflec...

Page 22: ...oved safely out of the way 4 Turn on band saw and allow a few seconds for the machine to reach full speed Whenever possible use a push stick hold down power feeder jig or similar device while feeding...

Page 23: ...s when selecting a saw blade Here are factors to consider when selecting a blade The type of material you will be cutting The thickness of the workpiece or part The features of the workpiece or part s...

Page 24: ...tubing or structurals The Straight set is most often preferred when cutting wood or plastics Figure 9 8 9 11 Material Band saw blades can be made from different types of materials Some of the most com...

Page 25: ...h a mixture of household ammonia good commercial detergent and 000 steel wool Alternatively commercial rust removers can be found at many hardware stores Apply a light coat of paste wax to the table s...

Page 26: ...ca 14 R M 10 R M 4 H H 4 H H Masonite 10 R L 4 S L 3 S M 3 H M Micarta 14 R M 10 R M 4 H H 3 H H Plexiglas 10 R L 6 R L 3 S M 3 S M Paper 14 R L 10 R L 4 S L 3 S M Study the part drawing or prototype...

Page 27: ...ly Workpiece being fed too strongly Reduce feed force Upper blade guides not located close enough to workpiece Position guides about 1 8 above workpiece Incorrect choice of saw blade for that particul...

Page 28: ...annealed or eliminate brittle part and weld correctly Blade cooled too rapidly after welding Have blade annealed or eliminate brittle part and weld correctly Premature dulling of saw teeth Blade pitch...

Page 29: ...rate a starter failure from a motor failure by first verifying incoming voltage at 115 10 or 230 10 and second checking the voltage between starter and motor at 115 10 or 230 10 If incoming voltage is...

Page 30: ...following pages To order parts or reach our service department call 1 800 274 6848 Monday through Friday 8 00 a m to 5 00 p m CST Having the Model Number and Serial Number of your machine available wh...

Page 31: ...31 13 1 1 JWBS 15 Assembly Exploded View...

Page 32: ...32...

Page 33: ...04041 Socket Head Cap Bolt M8x20 2 29 JWBS15 129 Saw Blade 133 L x 1 2 W x 0 026 T x 6 TPI 1 30 PM1500 020 Lower Wheel Assembly 15 1 31 PM1500 050 Viewing Window 2 32 TS 1541021 Nylon Nut M6 4 33 TS 1...

Page 34: ...te 2 85 TS 1541031 Hex Nut M8 1 86 TS 1541031 Nylon Nut M8 1 87 TS 1550061 Flat Washer M8 2 88 TS 1504041 Socket Head Cap Screw M8x20 1 89 PM1500 077 Washer 1 90 PM1500 137 Plate 1 91 TS 1524051 Set S...

Page 35: ...Handle M8 1 120 JWBS15 1120 Guide Bar Bracket Assembly 1 121 JWBS15 1121 Upper Blade Guide Assembly 1 122 JWBS15 1122 Miter Gauge Assembly 1 123 JWBS15 1123 Rip Fence Assembly 1 124 JWBS15 1124 Roll...

Page 36: ...61101 Spring Washer M10 2 6 TS 1550071 Flat Washer M10 4 7 JWBS15 1123 207 Set Screw M10x80 2 8 JWBS15 1123 208 Knob M8x40 2 9 PM1500 107 10 Resistance Pad 1 10 JWBS15 1123 210 Adjustment Knob M8x50 1...

Page 37: ...37 13 3 1 JWBS 15 18 20 Trunnion Support Bracket Assembly Exploded View...

Page 38: ...021 Flat Washer M4 x 8 2 14 PM1500 085 14 Angle Pointer 1 15 JWBS15 1138 315 Adjustment Knob Bolt M6 1 16 PM1500 085 16 Locking Ring 1 17 TS 2311061 Hex Nut M6 2 18 PM1500 085 18 Adjustment Plate 1 19...

Page 39: ...x8 5 7 PM1500 091 20 Guide Bar Rack Long 1 8 TS 2361081 Spring Washer M8 4 9 TS 1504031 Socket Head Cap Screw M8x16 4 10 PM1500 091 04 Cover 1 11 TS 1534041 Pan Head Screw M5x10 2 12 PM1500 091 09 Cov...

Page 40: ...205LLU Ball Bearing 6205LLU 2 5 PM1500 019 05 Tire 1 13 6 1 JWBS 15 Lower Wheel Assembly Exploded View 13 6 2 JWBS 15 Lower Wheel Assembly Parts List Index No Part No Description Size Qty PM1500 020 L...

Page 41: ...ower Blade Guide Assembly 1 thru 10 1 PM1500 096 01 Lower Blade Guide Support 1 2 PM1500 096 02 Eccentric Shaft 2 3 6286478 E Ring S12 2 4 BB 6201ZZ Ball Bearing 6201ZZ 4 5 PM1500 095 05 Knurled Knob...

Page 42: ...taining Ring S12 2 4 BB 6201ZZ Ball Bearing 6201ZZ 4 5 PM1500 095 05 Knurled Knob 2 6 TS 1503081 Socket Head Cap Screw M6x35 2 7 PM1500 095 07 Sleeve 1 8 TS 1523011 Set Screw M6x6 2 9 PM1500 085 29 S...

Page 43: ...WBS15 1122 Miter Gauge Assembly 1 thru 9 1 JWBS15 1122 701 Guide Bar 1 2 JWBS15 1122 702 Guide Piece 1 3 JWBS15 1122 703 Countersunk Bolt M6x6 1 4 JWBS15 1122 704 Pointer 1 5 PWBS14 251 5 Pan Head Fla...

Page 44: ...44 13 10 1 JWBS 18 Bandsaw Assembly Exploded View...

Page 45: ...45...

Page 46: ...1504041 Socket Head Cap Bolt M8x20 2 29 JWBS18B 129 Saw Blade 150 L x 3 4 x 0 026 T x 6 TPI 1 30 JWBS18B 130 Lower Wheel Assembly 18 1 31 PM1500 050 Viewing Window 2 32 TS 1541021 Nylon Nut M6 4 33 TS...

Page 47: ...Plate 1 85 TS 1541031 Hex Nut M8 2 86 TS 1541031 Nylon Nut M8 1 87 TS 1550061 Flat Washer M8 2 88 TS 1504041 Socket Head Cap Screw M8x20 1 89 PM1800B 088 Washer 1 90 PM1800B 087 Plate 1 91 TS 2279301...

Page 48: ...8x20 4 122 TS 1523041 Set Screw M6x12 2 123 JWBS15 1118 Handwheel 5 1 124 JWBS15 1119 Handle M8 1 125 JWBS18B 1125 Guide Bar Bracket Assembly 1 126 JWBS18B 1126 Upper Blade Guide Assembly 1 127 JWBS15...

Page 49: ...M10 6 5 TS 2361101 Spring Washer M10 2 6 TS 1550071 Flat Washer M10 4 7 JWBS15 1123 207 Set Screw M10x80 2 8 JWBS15 1123 208 Knob M8x40 2 9 PM1500 107 10 Nylon Pad 1 10 JWBS15 1123 210 Adjustment Knob...

Page 50: ...TS 2361081 Spring Washer M8 4 9 TS 1504031 Socket Head Cap Screw M8x16 4 10 PM1500 091 04 Cover 1 11 TS 1534041 Pan Head Screw M5x10 2 12 JWBS18B 1125 412 Cover 1 13 TS 1540031 Hex Nut M5 2 14 PM1500...

Page 51: ...ips Pan Head Machine Screw M6 x 8 3 6 PM1800B 018 06 Tire 1 13 14 1 JWBS 18 Lower Wheel Assembly Exploded View 13 14 2 JWBS 18 Lower Wheel Assembly Parts List Index No Part No Description Size Qty JWB...

Page 52: ...PM1500 096 01 Lower Blade Guide Support 1 2 PM1500 096 02 Eccentric Shaft 2 3 PM1800B 059 05 Retaining Ring S15 2 4 BB 6202ZZ Ball Bearing 6202ZZ 4 5 PM1800B 059 02 Knurled Adjusting Knob 2 6 TS 15031...

Page 53: ...2 4 BB 6202ZZ Ball Bearing 6202ZZ 4 5 PM1800B 059 02 Knurled Knob 2 6 TS 1503101 Socket Head Cap Screw M6x45 2 7 PM1500 095 07 Spacing Sleeve 1 8 TS 1523011 Set Screw M6x6 2 9 PM1500 085 29 Retaining...

Page 54: ...54 13 17 1 JWBS 20 Bandsaw Assembly Exploded View...

Page 55: ...55...

Page 56: ...28 JWBS20B 138 Sponge 585x10mm T 1 1 29 JWBS15 140 Sponge 760x10mm T 1 1 30 JWBS15 141 Sponge 16x5mm T 2 1 31 TS 1533052 Pan Head Screw M5x16 2 32 JWBS15 146 Magnetic Switch Assembly 3HP only 1 JWBS15...

Page 57: ...x Nut M8 1 86 TS 149105 Hex Cap Screw M10x35 1 87 TS 2361101 Spring Washer M10 2 88 JWBS20B 188 Motor 3HP 230V 1 JWBS18B 1101FM Motor Fan not shown 1 JWBS18B 1101FMC Motor Fan Cover not shown 1 JWBS18...

Page 58: ...1 120 TS 2246122 Socket Head Button Screw M6x12 2 121 TS 1550041 Flat Washer M6 2 122 JWBS20B 1122 Extension Plate 1 123 TS 1540061 Hex Nut M8 1 124 TS 1550061 Flat Washer M8 1 125 JWBS18B 1138 Handl...

Page 59: ...5 PM1800B 018 05 Phillips Pan Head Machine Screw M6x8 3 13 19 1 JWBS 20 Lower Wheel Assembly Exploded View 13 19 2 JWBS 20 Lower Wheel Assembly Parts List Index No Part No Description Size Qty JWBS20B...

Page 60: ...60 13 20 1 JWBS 20 Upper Wheel Sliding Bracket Assembly Exploded View...

Page 61: ...1081 Spring Washer M8 5 12 TS 2248202 Socket Head Button Screw M8x20 3 13 PM1800B 027 026 E Ring E15 1 14 JWBS20B 112 814 Block 1 15 5302731 Set Screw M8x6 5 16 JWBS20B 112 816 Wheel Shaft 1 17 TS 224...

Page 62: ...FD 250VAC RUN 40uF 250VAC START STOP GROUND MOTOR at 115V 1PH Rewired to 115V PUSH BUTTON SWITCH viewed from behind 230V 1PH 115V 1PH G GROUND 1 4 3 2 1 4 3 2 G RED WHITE CAPACITOR CAPACITOR RED RED R...

Page 63: ...APACITOR 60uF 300VAC START CAPACITOR 300MFD 250VAC POWER CORD 6 15P 1 230V 230V WHITE BLACK GROUND U V S R V U Set at 12A MAGNETIC SWITCH ASSEMBLY RED YELLOW BLACK RED BLACK BLACK WHITE GREEN WHITE BL...

Page 64: ...AC 230V WHITE BLACK GROUND U V S R V U Set at 22A MAGNETIC SWITCH ASSEMBLY RED YELLOW RED RED RED BLACK WHITE GREEN WHITE BLACK GREEN GREEN WHITE BLACK BLACK BLACK WHITE YELLOW RED BLACK RED BLUE BLUE...

Page 65: ...tional action needed JET has Authorized Service Centers located throughout the United States For the name of an Authorized Service Center in your area call 1 800 274 6846 or use the Service Center Loc...

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Page 68: ...68 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com...

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