Jet Tools 20QT-5, JWBS-18QT, JWBS-20QT, 18QT-3, 20QT-3 User Manual

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Operating Instructions and Parts Manual

18-Inch, 20-Inch Band Saw

Models: JWBS-18QT, -18QT-3, -20QT-3, -20QT-5

JWBS-18QT JWBS-20QT

JET

Warranty and Service

JET warrants every product it sells against manufacturers’ defects. If one of our tools needs service or repair, please contact Technical Service by calling 1-800-274-6846, 8AM to 5PM CST, Monday through Friday.

Warranty Period The general warranty lasts for the time period specified in the literature included with your product or on the official JET branded website.

• JET products carry a limited warranty which varies in duration based upon the product. (See chart below)

• Accessories carry a limited warranty of one year from the date of receipt.

• Consumable items are defined as expendable parts or accessories expected to become inoperable within a

reasonable amount of use and are covered by a 90 day limited warranty against manufacturer’s defects.

Who is Covered

This warranty covers only the initial purchaser of the product from the date of delivery.

What is Co vered

This warranty covers any defects in workmanship or materials subject to the limitations stated below. This warranty does not cover failures due directly or indirectly to misuse, abuse, negligence or accidents, normal wear-and-tear, improper repair, alterations or lack of maintenance.

Warranty Limitations

Woodworking products with a Five Year Warranty that are used for commercial or industrial purposes default to a Two Year Warranty. Please contact Technical Service at 1-800-274-6846 for further clarification.

How to Get Technical Support Please contact Technical Service by calling 1-800-274-6846. Please note that you will be asked to provi d e pr o of of initia l p u rch a s e whe n calling. If a product requires further inspection, the Technical Service representative will

explain and assist with any additional 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 Locator on the JET website.

More Information

JET is constantly adding new products. For complete, up-to-date product information, check with your local distributor or visit the JET website.

How S tate Law A pplies

This warranty gives you specific legal rights, subject to applicable state law.

Limitations on This Warranty

JET LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD OF THE LIMITED WARRANTY FOR EACH PRODUCT. EXCEPT AS STATED HEREIN, ANY IMPLIED WARRANTI ES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXCLUDED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.

JET SHALL IN NO EVENT BE LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY, OR FOR INCIDENTAL, CONTINGENT, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF OUR PRODUCTS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.

JET sells through distributors only. The specifications listed in JET printed materials and on official JET website are given as general information and are not binding. JET reserves the right to effect at any time, without prior notice, those alterations to parts, fittings, and accessory equipment which they may deem necessary for any reason whatsoever. JET

Product Listing with Warranty Period

90 Days – Parts; Consumable items; Light-Duty Air Tools 1 Year – Motors; Machine Accessories; Heavy-Duty Air Tools; Pro-Duty Air Tools 2 Year – Metalworking Machinery; Electric Hoists, Electric Hoist Accessories; Woodworking Machinery used for industrial or commercial purposes 5 Year – Woodworking Machinery Limited Lifetime – JET Parallel clamps; VOLT Series Electric Hoists; Manual Hoists; Manual Hoist Accessories; Shop Tools; Warehouse & Dock products; Hand Tools

NOTE: JET is a division of JPW Industries, Inc. References in this document to JET also apply to JPW Industries, Inc., or any of its successors in interest to the JET brand.

branded products are not sold in Canada by JPW Industries, Inc.

Warranty and Servic e .............................................................................................................................. 2

Table of Contents .................................................................................................................................... 3

Warning ................................................................................................................................................... 4

Introduction ............................................................................................................................................. 6

Specifica tions ................................................................................................................ .......................... 6

Grounding Inst r uc tions ............................................................................................................................. 7

Model JWBS-18QT .............................................................................................................................. 7

Models JWBS-18-3, - 20QT - 3, - 20QT - 5 ................................................................................................ 8

Unpac king ............................................................................................................................................... 9

Contents of Shipping Container ............................................................................................................ 9

Assembly .............................................................................................................................................. 10

Handwheel ......................................................................................................................................... 10

Mounting the Table ............................................................................................................................ 10

Rail Assembly .................................................................................................................................... 11

Fence Assembly and Adj ustm ent ....................................................................................................... 11

Resaw Guide ..................................................................................................................................... 13

Miter Gauge ....................................................................................................................................... 13

Adjustments .......................................................................................................................................... 14

Adjusting 90 Degree Table Stop ......................................................................................................... 14

Installing/Changing Blades ................................................................................................................. 15

Blade Tension .................................................................................................................................... 16

Blade Tracking ................................................................................................................................... 16

Overview – Bearing Adjustments ........................................................................................................ 17

Upper Bearing Adjustments ................................................................................................................ 17 

Lower Bearing Adjustments ................................................................................................................ 18 

Blade Lead ........................................................................................................................................ 19

Changing the Blade Speed................................................................................................................. 20

Belt Tension ....................................................................................................................................... 2 0

Replacing the Poly V-Belt ................................................................................................................... 2 1

Pulley Alignment ................................................................................................................................ 22

Operating Controls ................................................................................................................................ 23

Start/Stop Switch ............................................................................................................................... 23

Brake Pedal (JW BS-20QT only ) ......................................................................................................... 23

Operation .............................................................................................................................................. 2 4

General Procedure ............................................................................................................................. 24

Ripping .............................................................................................................................................. 24 

Crosscutting ....................................................................................................................................... 24

Resawing ........................................................................................................................................... 25

Saw Blade Selection .......................................................................................................................... 25

Blade Breakage ................................................................................................................................. 26 

Maintenance .......................................................................................................................................... 26

Blade Selecti on Guide ........................................................................................................................... 27

Parts ..................................................................................................................................................... 29

Electri c al Connec tions ........................................................................................................................... 48

Warning

1. Read and understand the ent ire owner's manual bef or e att em pting assembly or operation.

2. Read and understand the warnings po sted on the m achine and i n thi s manual. Fail ure to comply wit h

all of these warnings m ay cause seriou s i njury.

3. Replace the warning labels if they become obscured or removed.

4. This band saw is designed and i ntended for use by proper ly trained and experienced per sonnel onl y.

If you are not familiar with the proper and safe operation of a band saw, do not use until proper training and knowledge have been obtained.

5. Do not use this band saw for other than its intended use. If used for other purposes, JET discl aims

any real or implied warrant y and holds itself harmless from any injury that may result from that use.

6. Always wear approv ed safety glasses/face shields whil e using this band saw. Everyday eyeglasses

only have impact resi stant lenses; they are not safety glasses.

7. Before operating this band saw, remove tie, rings, watches and other j ewelry, and roll sleeves up past

the elbows. Remove all loose cl othing and c onfine long hair. Non- sli p footwear or anti- skid floor stri ps are recommended. Do not wear gloves.

8. Wear ear protector s (plugs or muffs) during ext ended peri ods of oper ation.

9. Some dust created by power sanding, sawing, grinding, drilling and other construction activities

contain chemi cals known to cause cancer , bir th defects or other r eproductiv e harm . Some exampl es of these chemic als are:

• Lead from lead based paint.

• Crystalli ne sil ic a from bricks, cement and other m asonry pr oduc ts.

• Arsenic 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 machi ne while tired or under the influence of drugs, alcohol or any medication.

11. M ak e c er tain the switch is in the OFF position before connecting the m achine to the power supply.

12. M ak e c er tain the machine is properl y grounded.

13. M ak e all machine adjustments or maintenance with the machine unplugged from the power source.

14. Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adjusting

wrenches are removed from the machine before turning it on.

15. Keep safety guards in place at all times when the machi ne is in use. If removed for maintenance

purposes, use extreme caution and replace the guards immediately.

16. Check damaged parts. Before further use of the machine, a guard or other part that is damaged

should be carefully checked to determine that it will operate properly and perform its intended function. Chec k for alignment of moving par ts, binding of moving parts, breakage of parts, mounting and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced.

17. P r ov ide for adequate space surroundi ng work ar ea and non-glare, ov er head lighting.

18. K eep the floor around the machi ne cl ean and fr ee of scrap material, oil and grease.

19. K eep v isitors a safe distance fr om the work area. Keep ch ildren away.

20. M ak e y our workshop child proof wit h padloc k s, m aster swit c hes or by r em ov ing starter keys.

21. Giv e your work undivi ded attention. Looki ng around, carryi ng on a conversati on and “horse-play” ar e

careless acts that can r esul t in serious injury.

22. Maintain a balanced stance at all times so that you do not fall or lean against the blade or other

moving part s. Do not over r eac h or use excessive force to perform any mac hine operation.

23. Use the ri ght t ool at the cor rect speed and feed r ate. Do not for ce a tool or attachment to do a job for

which it was not designed. T he ri ght tool will do the job better and safer.

24. Use recom mended accessories; i mproper accessories m ay be hazardous.

25. Mai ntain tools with care. Keep bl ades sharp and clean for the best and saf est performance. Follow

instructions for lubricating and changing accessories.

26. Turn off the machine bef ore cleaning. Use a brush or compressed air t o remove chips or debris — do

not use your hands.

27. Do not stand on the machine. Seri ous i njury could occur if the machine tips over.

28. Never leave the mac hine r unning unattended. Turn the power off and do not leav e the m ac hine until it

comes to a complete stop.

29. Remove loose items and unnecessary work pieces from the area before starting the machine.

Familiariz e you rself with the following safety no tices used in this manual:

This means th at if precaut ions are n o t heeded, it may resul t i n minor i njury and /or

possible machine damage.

This means that if p recautions are not heeded, it may result in serious injury or

possibly even d eath.

- - SAVE THESE INSTRUCTIONS - -

Introduction

This manual is provi ded by JET coveri ng the safe operation and m aintenance procedur es for JET model JWBS-18QT and JWB S-20QT seri es band sa ws. This m anual contai ns instr uctions on i nstal lati on, saf ety precautions, gener al oper ati ng procedur es, mai ntenance i nstructi ons and parts breakdo wn. Thi s mac hine has been designed and con structed t o provide year s of troubl e free operation if used in accordanc e with instructi ons set forth in this manual. If there are any questions or comm ents, please contact either your local suppli er or JET. JET can also be reached at our web site: www.jettools.com.

Specifications

Model Number .................................. JWBS-18QT............. JWBS-18QT-3 ........ JWBS-20QT-3 ........JWB S-20QT-5

Stock Number ......................................... 710750B...................... 710751B .................. 708754B ................. 708755B

Band Saw Nominal Size (in.) ............................. 18................................18 ............................ 20 ........................... 20

Capacities and Speeds:

Cutting Capacity (height) (in.) ............................ 12................................12 ...................... 12-1/4 ..................... 12-1/4

Cutting Capacity (width) (in.) ....................... 18-3/8.......................... 18-3/8 ............................ 20 ........................... 20

Maximum Rip Left of Blade w/Fence (in.) ..... 16-1/2.......................... 16-1/2 ...................... 18-1/2 ..................... 18 - 1/2

Maximum Rip Right of Blade w/Fence (in.) .... 7-5/8............................ 7-5/8 ........................ 9 -3/ 4 ....................... 9-3 /4

Blade Length (in.) ........................................... 137.............................. 137 .......................... 150 ......................... 150

Blade Speed (FPM) ............................. 1800/3200................... 1800/3200 ................ 1800/3200 ............... 1800/3200

Blade provided........................... hook, 3/4” x 4 TPI........ hook, 3/4” x 4 TPI ........ hook, 1” x 3 TPI ....... hook, 1” x 3 TPI

Minimum Blade Wid th (in.) ............................... 1/8............................... 1/8 ........................... 1 /8 .......................... 1/8

Maximum Blade Width (in.) ........................... 1-1/2............................ 1-1/2 ........................ 1 -1/ 2 ....................... 1-1/ 2

Wheel Diameter (in.) ................................... 18-5/8.......................... 18-5/8 ...................... 20-1/2 ..................... 20-1/2

Table and Fence:

Table Size (in.) ....................................... 19” x 19”...................... 19” x 19” ................. 21" x 21" ................. 21" x 21"

Table Tilt (degrees) ........................... 45°R to 10°L................ 45 °R to 1 0°L ............ 45°R to 10°L ............ 45°R to 10°L

Table Height from Floor (in.) ........................ 37-1/2.......................... 37-1/2 ...................... 36-1/8 ..................... 36-1/8

Fence Size (LxWxH/in.) ........... 23-5/8x1-3/4x3-1/2....... 23-5/8x1-3/4x3-1/2 ... 23-5/8x1-3/4x3-1/2 .. 23-5/8x1-3/4x3-1/2

Resaw post (LxDia./in.) ........................... 6 x 1-1/8...................... 6 x 1-1/8 .................. 6 x 1-1/8 .................. 6 x 1-1/8

Dust Collection:

Dust Port Outside Diam eter (in.) ......................... 4................................. 4 .............................. 4 ............................. 4

Minimum Extract ion Volume Requ ired (CFM) .. 400.............................. 400 .......................... 400 ......................... 400

Overal l Dimensions (HxWxD/in.) .. 73 x 41-1/2 x 30........... 73 x 41-1/2 x 32 ....... 74 x 41-1/2 x 37 ....... 74 x 41-1/2 x 39

Motor an d E le ctricals:

Motor.................................... 1.75HP(1.3kW), 1PH....... 3HP(2.2kW), 1PH ..... 3HP(2.2kW), 1PH .... 5HP(3.7kW), 1PH

115/230V

Start Capacitor........................... 300MFD 125VAC......... 300MFD 125VAC ..... 300MFD 125VAC .... 300MFD 250VAC

Run Capacitor ................................ 4 0μF 250VAC.............. 60μF 250VAC .......... 60μF 250VAC .......... 50μF 450VAC

Power transfer ..................................... poly-V belt................... poly-V belt ................ poly-V belt ............... poly-V belt

Power plug included........................................ yes................................no ............................ no ........................... no

Recommended circuit size

Weights:

Net Weight (lbs.) ............................................. 375............................ 381 ......................... 562 ........................... 595

Shipping Weight (lb s.) ..................................... 452 ........................... 459 ......................... 643 ........................... 676

Prew ired 115V

Subject to local and national electrical codes.

The above specifications were current at the time this manual w as published, but because of our policy of continuous improvement, JET reserves the right to change specifications at any time and without prior notice, without incurring obligations.

, 17.6/8.8A, 60Hz 230V, 13A, 60Hz 230V, 13A, 60Hz 230V, 21A, 60Hz

..................... 40A/20A ............................. 30A .......................... 30A ......................... 50A

Grounding Instructions

This machine must be

grounde d while in use to protect the ope r a t or from electri c sho ck.

In the event of a malfunction or breakdown, grounding provi des a path of least resistance for electric current to reduce the risk of electric shock. This machi ne is equipped wit h an el ect ric cord having an equipment-grounding conductor and a grounding plug. The plug must be plugged into a matching outlet that is properly installed and grounded in accordanc e with all local codes and ordinances.

Do not modify the pl ug pr ovided. If it will not fit the outlet, have the proper outlet installed by a qualified elec trician.

Improper connection of the equipmentgrounding conductor can result in a risk of electric shock. The conductor, with insulation having an outer surface that is green with or without yellow stripes, is the equipmentgrounding conduct or. If repair or replacement of the electric cord or plug is necessary, do not connect the equipment -groundi ng conductor to a live terminal.

Check with a qualified electrician or service personnel if the grounding instructions are not completely understood, or if in doubt as to whether the tool is properl y grounded. Use only three wire extension cords that have thr ee-prong grounding plugs and t hree-pole recept acles that accept the tool ’s pl ug.

Repair or replace a damaged or worn cord immediately.

properly grounded outlet box, as shown in C, Fig. 1.

Figure 1

230 Volt Operation

To convert the JWBS-18QT from 115V to 230V, single phase operat ion, the following i s strongly recommended:

Contact your local Authorized JET Service Center or qualified electrician for proper procedures to install the plug. The band saw must comply with all local and national codes after the 230V pl ug is i nstalled.

Change the lead wires at t he motor j unction box as shown in B, Figure 2.

The 115V attachment plug supplied with the band saw (C, Fig. 2) must be replaced with a UL/CSA listed plug suitable for 230V operation (D, Fig. 2).

The band saw with a 230V pl ug should only be connected to an outlet having the same configurati on (D, Fig. 2). No adapter is availabl e or should be used with the 230V plug.

Important: In all cases (115 or 230 volts), make certain the receptacle in question is properly grounded. If you are not sure, have a regi stered electrici an c hec k the rec eptacle.

Model JWBS-18QT

Model JWBS-18QT Band Saw has a 1-3/4 HP 1 phase motor and is wired from the factory for 115 volt operation, but can be rewired for 220 volts.

115 Volt Operation

The JWBS-18QT Band Saw comes equipped wit h a plug that looks like A, Fig. 1. and is used in an outlet th at loo k s l i k e B , F i g. 1. A temporary

adapter with a grounding ear secured with a screw (C, Fig. 1) may be used to connect this

plug to a two-pole receptacle if a properly grounded outlet i s not available. The tem porary adapter should only be used until a properly grounded outlet can be installed by a qualified electrician. This adapter is not applicable in Canada. T he green colored grounding ear, l ug, or tab, extending from the adapter, must be connected to a permanent ground such as a

Figure 2

Models JWBS-18-3, -20QT-3, -20QT-5

Band saw models JW BS-18QT-3, JWBS-20QT3 and JWBS-20QT- 5 are wired from the factory for 230 volt operation only. Refer to Specifications for phase and HP ratings.

A plug is not inc luded. You may either install a plug or “hard-wire” the band saw directly to a control panel.

If connecti ng a plug, use a proper UL/CS A li sted 2-pole, 3-wire grounding plug suitable for 230V operation.

If the band saw is to be hard-wired to a panel, make sure a disconnect is available for the operator. During hard-wiring of the band saw, make sure the f uses have been removed or the breakers have been tripped in the circuit to which the band saw will be c onnected. Place a warning placard on the fuse holder or circuit breaker to prevent it being turned on while the machine is being wired.

Circuit Information

The Band Saw should be connected to a dedicated circuit with a circuit breaker or time delay fuse with t he appropriat e amperage rati ng. See Table 1 for recommended circuit sizes.

NOTE: These are recommendations only – all local codes must be giv en pr ior ity.

Extension cords

The use of an extension cord is not recommended f or this band saw. Try to positi on your machine wit hin reach of the power suppl y. If an extension cord bec omes necessary, mak e sure the cord rating is suitabl e for the amperage listed on the machine’s motor plate. An undersized cord wil l cause a drop in line voltage resulting in loss of power and overheating.

Use the chart in Table 2 as a general guide in choosing the correct size cord. If in doubt, use the next heav ier gauge. The smaller the gauge number, the heavier the cord.

Recommended

Model Voltage

JWBS-18QT

710750B

JWBS-18QT-3

710751B

JWBS-20QT-3

708754B

JWBS-20QT-5

708755B

115V 40A 230V 20A

230 30A

230 50A

Circuit*

* Local codes take precedence over recommendations.

Table 1

Recomm end ed Ga ug es (A WG ) of Extensi on Co rd s

Extension Cord Length *

100

150

200

Amps

< 5 16 16 16 14 12 12

5 to 8 16 16 14 12 10 NR

8 to 12 14 14 12 10 NR NR 12 to 15 12 12 10 10 NR NR 15 to 20 10 10 10 NR NR NR 21 to 30 10 NR NR NR NR NR

*based on li miting th e lin e vol tage drop to 5V at 15 0% of the rated amp eres.

NR: Not Recommended.

feet

Table 2

Unpacking

Remove the crate and packing material from the band saw except for the transport skid on the bottom. Inspect the machine for damage. Report any damage to your distributor and shipping agent.

Move the saw to its permanent working location. The site should be dry, well lit, and have enough room to handle long stock and the service and/or adjustment of the machine from any side.

Move the band saw off the skid. Clean all rust protected surf aces with a m il d solv ent or diesel fuel and a soft cl oth. Do not use lacquer thi nner, paint thinner, or gasoline. These will damage painted surfaces.

Contents of Shipping Container

1 Band Saw (not shown) 1 Rail Guide ( A ) 1 Rear Rail (B ) 1 Front Rail (C) 1 Fence Body (D) 1 Mit er G auge (E) 1 Fence (F) 1 Table (G)

1 Accessory Package Contains:

Hardware Bag

01 0Resaw P ost (H ) 01 010/12mm Open End Wrench (J) 01 0Handle (K) 01 0Lock Handle (L) – JWBS-20QT only 01 0Resaw Post Lock Knob (M) 01 0Lock Knob (N) – JWBS-20QT only 02 0Lock Knob (N) – JWBS-18QT only

Fence Hardwar e Bag

04 5/16-18x3/4 Socket Head Cap Screws (P) 04 5/16 Flat Washers (Q) 04 5/16 Lock Washers (R)

Rail Hardware Bag

09 1/4-20x5/8 Hex Cap Screws (S) 09 1/4 Flat Washers (T) 09 1/4 Lock Washers (U)

1 Owner’s Manual ( not shown) 1 Warranty Card (not shown)

Tools Required for Assembl y & Adj ustments

The tools listed below are not included but are required for assembly.

2 14mm Open End Wr enc h 1 Cross Point S crew Driv er 1 Combination Square

Figure 3 - Hardware

Assembly

Handwheel

Attach the handle (A, Fig. 4) to the handwheel (B, Fig. 4) .

Mounting the Table

Important: The table is heavy. Mounting with the

help of another person is recommended. Referring to Fi gur es 5 and 6:

1. Remove the table insert (A) and tapered pin (B).

2. Slide the table so the saw blade (D) passes through the slot where the tapered pin (B) was located.

3. Rotate the table 90 degrees so that the miter slot (C) is parall el to the blade (D) and to the right of the blade when f acing the band saw as viewed in Figure 6.

Figure 4

Figure 5

4. Line up the table (G) to the trunnions so that the bolts (F bracket (E

, F2) feed through the support

, E2).

For band saw model JWBS- 18QT

Secure the table with two lock knobs (H).

For band saw model JWBS- 20QT

Secure the table with lock knob (H) to bolt F and lock handle (J) to bolt F

5. Reinstall the table insert (A) and tapered pin (B).

Figure 6

Rail Assembly

Referring to Fi gur e 7:

1. Attach the front rail (F) to the cast iron table with two 1/4” x 5/8” hex cap screws, two 1/4” lock washers, and two 1/4” flat washers. The screws should be in approximately the center of the slot. Hand-tighten only at this time.

2. Attach the rear rail (G) to the table with two 1/4” x 5/8” hex cap screws, two 1/4” lock washers, and two 1/4” flat washers. Screws should be in approximately the center of the slot. Hand-ti ghten only at this time.

3. Push the front and rear rails up as far as they will go.

4. Using a 10mm wrench, tighten the four hex cap screws holding the front and rear rails to the table. Do not over -tighten the screws.

5. Attach the guide tube (H) to the front rail with five 1/4” x 5/8” hex cap screws, five 1/4” lock washers, and five 1/4” flat washers. Screws should be in approximately the center of the slot.

Hand-tighten the guide tube only at this time. You will be instructed to secure it later in the Fence Assembly and Adjust m ent section.

Fence Assembly and Adjustment

Assembling the F enc e to F enc e Body

Referring to Fi gur e 8:

1. Attach the fence (A) to the fence body (B) wi th four 5/16” x 3/4” socket head cap screws (C), four 5/16” lock washers (D), and four 5/16” flat

washers (E). Hand-tighten only at thi s time.

Figure 7

Figure 8

Fence Adjustm ent

2. Place the fence assembly onto the guide rail (D, Fig. 9) and against the edge of the miter slot (C, Fig. 9). The hook at the rear of the

fence should f it under the rear rail (see Figure

12).

The fence must ali gn parall el to t he miter slot along the entire l ength of the fence.

If adjustm ent is necessary:

3. Lock the fence by pushing down the lock handle (A, F ig. 9). Because the scre ws are only hand-tight, you can shift the fence slightly as needed until the fence is parallel the miter slot.

4. When the fence has been properly aligned to the miter slot, t ighten t he four socket head cap screws (B, Fig. 9) with a 6mm hex wrench. Make sure the fence remains parallel to the miter slot as you ti ghten the screws.

Note: This alignment will again be checked once the guide rail has been tightened.

5. Move the fence assembly to the other side of the blade as shown in Figure 10 so that the

pointer (B, Fi g. 10) on the f ence body point s to zero on the scale. Lock the fence by pushing the handle (A, Fig. 10) down.

Figure 9

6. Mov e the guide rail (D, Fig. 10) with the lock ed fence until t he fence is flush against the bl ade

(C, Fig. 10). Do not unlock the fence t o perform this. Move the fence and guide rail together when establishing the zero point.

Important: Do not force the fence into the blade so that the blade bends.

7. With a 10mm wrench, t ighten the five hex cap screws located on the bottom of the front rail that hold the guide rail to the front rail.

Note: After tightening the guide rail, double check that the f ence is still parallel to the miter slot. Make additional adjustments if needed.

Figure 10

Adjusting Clearance between Fence and Table

Referring to Fi gur es 11 and 12: Check the clearance between the table and the

fence. The fence should not rub against the table surface but be sli ghtly above it. Thi s gap should be the same at the front of t he table as it is at the rear.

If the gap between fence and table is not consistent, loosen either of the hex nuts on the hook (Figur e 12) and rot ate the sliding pad unt il the fence/tabl e gap is consistent acr oss the full lengt h of the table. When this is achieved, tighten both hex nuts.

Check the adjustment of the hook at the rear of the fence. The hook should be positioned so that it overlaps the rear rail by approximately 1/8” (Fig. 12). To adjust the hook, loosen t he upper hex nut and slide the hook in or out as needed. Retighten upper hex nut.

Resaw Guide

For resawing attach the post (A, Fig. 13) to the fence with the lock knob (B, Fig. 13). There is a slotted hole in the fence that will accommodat e the resaw kit. Position the post so that it is centered with the front edge of the blade. The resaw guide will give you a taller, single point contact surface during resawing.

Figure 11

Figure 12

Miter Gauge

1. Place the miter gauge i n the t able slot.

2. With a square verify the miter gauge face is square to the blade.

3. If the miter gauge is not square to the blade loosen the lock knob (C, Fig. 13) and adjust t o the proper setting. Tighten the lock knob.

4. If the pointer is not at 90 degrees, loosen the screw (D, Fig. 13) holding the pointer and mov e the pointer to 90 degr ees.

5. Re-tighten the screw.

Figure 13

Adjustments

Table Tilt

Referring to Fi gur e 14:

1. Disconnect machine from power source.

2. Loosen the lock k nob( s ) /lock handle (G).

3. Til t table up to 45 degr ees to the right, or up to 10 degrees to the left.

4. Tighten the lock knob(s)/lock handle.

Note: Tabl e stop bolt (F, Fig. 14) must be removed to tilt table to the left.

Adjusting 90 Degree Table Stop

Before adjusting the 90º table stop, the blade tension must be pr operl y adjusted (descri bed i n the Blade Tension section).

To adjust the 90º table stop:

1. Loosen lock knob(s)/lock handle (C, Fig. 15) and tilt the table until it rests against tabl e stop

bolt (B, Fig. 15); then re-tighten the lock knob(s)/handle.

2. Use a square (E, Fig. 16) placed on the table and against the bl ade to see if the table is 90 degrees to the blade.

3. If an adjustment is necessary, l oosen the lock knob(s)/handle (C, Fig. 15). Til t the table until it is square to the blade; then re-tighten the lock knobs.

Figure 14

Figure 15

4. Loosen lock nut (A, Fig. 15) and t urn tabl e stop bolt (B, Fig. 15) until it contacts the table.

Tighten t he nut (A, Fig. 15) to hold t able stop in place. When tightening the nut hold the table stop bolt in place with a wrench to prevent movement.

5. If necessary, adjust the pointer (D, Fig. 15) to zero.

Figure 16

Installing/Changing Blades

Disconnect machine from

power source. Blade teeth are sharp, use care when handling the blade. Failure to compl y may cause serious inj ury.

1. Disconnect machine from power source.

2. Place the mode selection lever (J, Fig. 18) in the Full Release (Blade Change) position.

Note 1: When changing the position of the mode selection lever, the machine must be turned off.

Note 2: The blade tension handwheel (A, Fig. 17) is primarily used for initial blade tension adjustments (described on following page).

3. Remove the table ins ert (B, Fig. 17).

4. Remove the tapered pin (C, Fi g. 17) by using the wrench attached t ogether with the pin.

5. Lower the upper blade guide assembly (F, fig. 17) by loosening the knob (H, Fig. 18) and rotating the handwheel ( G, Fig. 18) clockwise.

6. Open upper and lower front doors (D, Fig. 17).

7. Carefully remove the blade from between upper and lower blade guides and upper and lower wheels; then remove blade through the table slot (E, Fi g. 17).

8. Guide new blade through table slot (E, Fig. 17) . Place blade in upper and lower blade guides.

Note: Make sure blade teeth point down toward table (see inset, Fig. 17), and toward the front of the saw.

Hint: If the teeth cannot be made to point down, try turning t he blade inside out first, then reattempt.

9. Posit ion blade on the middle of the upper and lo wer wheels.

10. Replace t he table insert (B, Fig. 17) and tapered pin (C, Fi g. 17).

11. Pl ace the lever (J, Fig. 18) to the F ull Tension or Partial Tension (Idle/Track ing) posi tion.

Before operating the band saw, the new blade must be adjusted and blade guides re-adjusted. The required adj ustments are contained in the sections listed below and which follow immediately:

Figure 17

 Blade T ensi on ( page 16)  Blade Track ing (page 16)  Upper Beari ng A djustment (page 17)  Lower Beari ng A djustment (page 18)

Figure 18

Blade Tension

Blade tension is set with the blade tension handwheel (A, Fi g. 19) and is performed following

blade replacement and periodically as the blade stretches fr om use.

Disconnect machine from

power source before maki ng any adjustments.

Referring to Fi gur e 19:

1. Place the mode selection lever (F) in the Full Tension posit ion (see Figure 18).

2. Set the blade tension by rotating the

handwheel (A) according to the arrow directions shown in F igure 19.

The gauge (B) indicates the approximate tension according to the width of the blade in inches. Initially, set the blade tension to correspond to the width of your blade.

The JWBS-18QT comes with a 3/4" blade so the tension should be set at 3/4" when using this blade.

The JWBS-20QT com es with a 1" blade so the tension should be set at 1" when using this blade.

Note: For the JWBS-18QT the tension gauge can also be seen from the front of the saw through the wheel when the upper door is open.

As you become fami liar with the saw, you m ay fi nd it necessary to change t he blade tension fr om the initial setting.

Keep in mind that too little or too much blade tension can cause blade breakage and/or poor cutting perf ormance.

Tip: When the band saw is not being used, pl ace the mode selection lever (J, Fig. 18) to the Partial Tension posit ion – this will prolong the blade’s l ife.

Blade Tracking

Tracking refers to the position of the saw blade on the wheels while the machine is in operation. Tracking has been factory-adjusted. However, it should be checked occasionally, including after every blade change.

Figure 19

1. Open upper front door to expose the wheel. Rotate the wheel clockwise by hand and observe the positi on of the blade on the wheel through the window (E, Fig. 19). The blade should ride upon the center of the wheel as shown in Figure 20.

2. If t he blade tends to move toward the edge of the wheel, loosen the wing nut (D, Fig. 19) and slightly rotate the knob (C, Fig. 19). Rotating the knob clockwise will cause the blade to move toward the rear edge of the wheel. Rotating the knob counterclockwise will cause the blade t o mov e toward the f ront edge of the wheel.

Note: This adjustment is sensitiv e; perform it in small increments and give the blade time to react to the changes as you cont inue to rotate the wheel.

3. When the blade is tracking properly in the center of the wheel, re-tighten the wing nut (D, Fig. 19).

4. Close the upper front door.

Disconnect machi ne f rom

power source before maki ng any adjustments. Important: The blade must be in Full or Partial

Tension positions before adjusting blade tracking (see previous secti on). Make sure the blade guides and other parts of the machine will not interfere with the movement of the blade.

To inspect and adjust t r ac ki ng, proceed as follows:

Figure 20

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