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14.0

Troubleshooting JWSS-18B Scroll Saw

Table 3

Symptom

Possible Cause

Correction *

Motor will not start.

Low voltage.

Check power line for proper voltage.

Open circuit in motor or loose
connection.

Inspect all lead connections on motor for
loose or open connections.

Damaged cord or plug.

Inspect and replace.

Carbon brushes worn.

Replace brushes.

Motor will not start:
fuses blow or circuit
breaker trips.

Short circuit in line cord or plug.

Inspect cord or plug for damaged
insulation and shorted wires.

Short circuit in motor or loose
connections.

Inspect all connections on motor for loose
or shorted terminals or worn insulation.

Incorrect fuses or circuit breakers in
power line.

Install correct fuses or circuit breakers.

Machine slows when
operating.

Applying too much pressure to
workpiece.

Feed workpiece more slowly.

Tilting mechanism
difficult to move.

Caked dust or other obstruction in
trunnion assemblies.

Clean trunnion areas and apply light dabs
of grease to contacting parts.

Blades frequently
break.

Incorrect blade tension.

Set proper tension.

Blade being overworked.

Reduce feed rate.

Wrong blade type for job.

Select proper blade.

Blade twisting in workpiece.

Avoid side pressure on blade. Reduce
feed rate.

Too few teeth per inch.

Blade should have minimum 3 teeth in
contact with workpiece.

Blade refuses to
tension properly, or
keeps slipping.

Blade not seated properly.

Inspect entry of blade into upper and lower
blade chucks.

Blade tension lever needs tightening.

Tighten tension lever.

Set screws in upper blade chuck are
backed out, not contacting blade.

Tighten set screws.

Blade clamp has oil or debris on it.

Clean blade clamp, ends of set screws.

Blade drift.

Some drift is unavoidable depending
upon size of blade and type of cut.

Compensate by manipulation of workpiece
into blade.

Incorrect blade tension.

Increase tension.

Excessive vibration.

Saw improperly mounted.

Secure saw properly to bench or stand.

Unsuitable mounting surface.

Less vibration will occur with a heavier
work bench. Use pads or fiber washers at
mounting contact points.

Arms/linkage system not tight.

Tighten trunnion lock knob.

Loose motor mounting.

Tighten motor mount screws.

WARNING:

Some corrections may require a qualified electrician or service personnel.

Содержание JWSS-18B

Страница 1: ...Parts Manual 18 inch Woodworking Scroll Saw Model JWSS 18B JET 427 New Sanford Road LaVergne Tennessee 37086 Part No M 727300B Ph 800 274 6848 Edition 3 09 2019 www jettools com Copyright 2018 JET This pdf document is bookmarked ...

Страница 2: ...maintenance purposes use extreme caution and replace the guards immediately after completion of maintenance 15 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 Check for alignment of moving parts binding of moving parts breakage of parts mounting and a...

Страница 3: ... off saw before backing stock out of an incomplete cut Only remove jammed cut off pieces after blade has stopped 40 Make relief cuts before cutting long curves 41 When cutting large or oversize stock always make sure material is supported at table height 42 Do not feed workpiece too fast while cutting Feed workpiece only fast enough for the blade to cut 43 Never reach under the table while blade i...

Страница 4: ...ion if used in accordance with the instructions as set forth in this document This manual is not intended to be an exhaustive guide to scroll saw operational methods choice of blades or wood 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 comments please conta...

Страница 5: ...ntion 15 9 9 Blower nozzle 15 10 0 Operations 15 10 1 General operating tips 15 10 2 On off controls 15 10 3 Procedure 15 11 0 User maintenance 16 11 1 General maintenance 16 11 2 Lubrication 16 11 3 Fuse inspection 17 11 4 Commutator brush inspection 17 12 0 Blade selection 18 12 1 Width 18 12 2 Pitch 18 12 3 Set 18 12 4 Material 18 12 5 Tooth form 19 13 0 Optional accessories 19 14 0 Troubleshoo...

Страница 6: ...ance at every point to the table surface Parallel link style of scroll saw in which a motor pushes rods in upper and lower arms that move articulated arms holding the blade The JET scroll saw is this type Perpendicular 90 right angle intersection or position of vertical and horizontal planes such as saw blade to table Pin end blade Blade that requires a pin to secure it to the saw These are not su...

Страница 7: ...eft 45 deg with removal of dust port Main materials Body steel Main table steel Trunnion steel Arm steel plastic cover Dimensions Optional stand footprint LxW 28 x 25 1 2 in 711 x 648 mm Overall dimensions saw only LxWxH 30 7 x 15 7 x 17 3 in 780 x 400 x 440 mm Overall dimensions saw on stand LxWxH 33 x 25 1 2 x 48 in 838 x 648 x 1219 mm Shipping dimensions saw only 33 2 x 18 9 x 19 845mm x 480mm ...

Страница 8: ...8 5 1 Mounting hole pattern Figure 5 1 JWSS 18B mounting hole pattern 6 0 General features and terminology Figure 6 1 JWSS 18B features ...

Страница 9: ...equired for assembly 14mm open end wrench for foot pads 3mm hex wrench for blade guide 7 2 1 Tools required for optional accessories 12mm wrench for optional stand 2 Cross point screwdriver for optional blade rack Note Additional tools may be needed for adjustments and general maintenance Figure 7 2 hardware package JWSS22B SHK 7 3 Unpacking and cleanup 1 Remove all contents from shipping carton R...

Страница 10: ...t V shape this end goes at the top The bottom edge of the leg forms a straight line 2 The leg extensions 10 Figure 7 7 can be adjusted for height 3 If stand will not be bolted to the floor install the leveling feet shown in Figure 7 5 that were included with the scroll saw onto the bottoms of the stand leg extensions Figure 7 7 4 Position stand upright on level floor Push down on stand assembly to...

Страница 11: ...ct the equipment grounding 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 properly grounded Failure to comply may cause serious or fatal injury Use only 3 wire extension cords that have 3 prong grounding plugs and 3 pole receptacles that accept the tool s plug ...

Страница 12: ...tilt adjustment 9 2 Installing blade 1 Turn off saw 2 Insert lower blade holder into hole in side panel for leverage and loosen knob See Figure 9 2 3 Slide blade into holder deep enough to gain sufficient clamping but not all the way which can result in blade being too short for sufficient gripping by upper guide Make sure blade teeth point down toward the blade holder Tighten blade holder knob NO...

Страница 13: ...steps should resolve blade tension problems If problem still exists Rotate arm adjustment knob Figure 9 6 clockwise by hand This will raise arm and apply more tension to blade IMPORTANT Rotating arm adjustment knob for tension purposes should only be done if absolutely needed as it will affect later blade oscillation settings sect 9 7 Figure 9 6 arm adjustment knob 9 4 Material hold down Refer to ...

Страница 14: ...modate different wood stock and types of operations For example for faster more aggressive cutting the blade can be adjusted for slight backward movement on the upstroke and slight forward movement into the wood on the downstroke For slower fine detail work and more control completely vertical blade movement is often preferred This adjustment is based upon user s preference as the scroller gains e...

Страница 15: ...or twist the blade 6 Blade should have minimum 3 teeth in contact with workpiece at all times 7 Make relief cuts as needed to prevent binding of blade in workpiece 8 A blade has a tendency to follow the wood grain Be prepared to compensate for this to achieve accurate cuts 9 Use caution when sawing round pieces such as dowels which tend to roll while cutting 10 Keep fingers away from cutting path ...

Страница 16: ...oming to a complete stop while cutting Figure 10 3 fretwork cutting 11 0 User maintenance Always unplug scroll saw from power before performing maintenance Failure to comply may result in serious personal injury 11 1 General maintenance Clean wood dust from the saw frequently using a vacuum or compressed air or damp cloth Use a soft bristle brush for crevices Use proper eye and respiratory protect...

Страница 17: ...ay result in damage to motor armature 1 Unplug saw from power source 2 Unscrew and remove cap with flat blade screwdriver See Figure 11 3 3 Gently pry up an edge of the brass clip until the spring causes it to disengage from hole Notice orientation of brush as you remove it it should be inserted in the same manner curvature of brush will match curvature of motor 4 Pull out brush and inspect Brush ...

Страница 18: ...teeth per inch will cut faster but more roughly Try to use a blade that will have a minimum of 3 teeth engaged in the workpiece at any given time 12 3 Set Set refers to the manner in which the blade teeth are bent or positioned Bending the teeth creates a kerf that is wider than the back of the blade This helps the operator more easily pivot a workpiece through curve cuts and decreases friction be...

Страница 19: ...lication but good for looser fretwork Crown Tooth Cuts on both up and down strokes for clean splinter free edges Depending on blade oscillation settings a crown tooth blade may often be turned over for a fresh set of cutting teeth Figure 12 2 blade forms 13 0 Optional accessories These accessory items purchased separately will provide convenience and enhance the functionality of your scroll saw Co...

Страница 20: ...ct blade tension Set proper tension Blade being overworked Reduce feed rate Wrong blade type for job Select proper blade Blade twisting in workpiece Avoid side pressure on blade Reduce feed rate Too few teeth per inch Blade should have minimum 3 teeth in contact with workpiece Blade refuses to tension properly or keeps slipping Blade not seated properly Inspect entry of blade into upper and lower ...

Страница 21: ...gh Friday 8 00 a m to 5 00 p m CST Having the Model Number and Serial Number of your machine available when you call will allow us to serve you quickly and accurately Some parts are shown for reference only and may not be available individually Non proprietary parts such as fasteners are usually available at local hardware stores or may be ordered from JET ...

Страница 22: ...WSS 18B Upper Lower Arm Assembly Exploded View 1 2 3 4 5 6 1 7 8 9 10 11 12 13 14 15 17 18 16 19 8 8 20 22 21 23 14 14 24 26 25 24 27 28 29 30 31 32 33 34 8 35 36 37 38 39 40 42 41 44 43 45 46 48 50 51 45 52 48 47 ...

Страница 23: ...t Screw 1 4 20x2 1 2 2 26 TS 130205 Lock Washer 1 4 1 27 TS 081B012 Phillips Pan Head Machine Screw 8 32x1 4 2 28 TS 0720041 External Tooth Lock Washer 8 2 29 TS 0561031 Hex Nut 3 8 16 1 30 JWSS22B 230 Ball Set Screw 3 8 16x5 8 1 31 JWSS22B 231 Housing Cross Block 1 32 JWSS22B 232 Cross Block Retainer 1 33 JWSS22B 233 Cap 1 34 JWSS22B 234 Strain Relief 2 35 JWSS22B 235 Control Box 1 36 JWSS22B 236...

Страница 24: ...24 15 2 1 JWSS 18B Table Cabinet Assembly Exploded View 1 2 3 4 5 6 7 8 9 12 13 14 11 10 15 16 17 18 19 20 21 22 23 24 25 26 27 33 34 4 21 22 23 24 24 26 30 32 35 36 28 29 ...

Страница 25: ...16 JWSS22B 316 Angle Follower 2 17 F009916 Button Head Socket Screw 10 32x5 16 8 18 TS 069204 Flat Washer 10x12x1 8 19 JWSS22B 319 Front Trunnion Plate 1 20 JWSS22B 320 Hex Flange Nut 1 4 20UNC 12 21 JWSS22B 321 Trunnion 2 22 JWSS18B 322 Side Panel 2 23 TS 0254041 Button Head Socket Screw 1 4 20x3 4 8 24 TS 0680021 Flat Washer 1 4 9 25 JWSS22B 325 Rear Trunnion Plate 1 26 TS 0720071 Lock Washer 1 ...

Страница 26: ... 6 8 7 5 9 11 12 10 13 14 10 15 16 17 18 19 20 21 22 19 18 23 22 25 26 27 52 25 26 30 55 52 30 18 28 29 26 18 26 29 28 35 35 18 32 32 18 33 33 10 10 10 10 31 13 31 13 18 18 18 55 34 34 18 59 37 26 40 42 38 44 43 45 46 47 44 48 49 50 51 24 18 23 38 59 56 57 58 26 ...

Страница 27: ...1412 2 24 JWSS22B 424 Bushing 1 25 TS 1550021 Flat Washer M4 8 26 TS 1541001 Hex Nylon Lock Nut M4 12 27 TS 1501071 Socket Head Cap Screw M4x25 2 28 JWSS22B 428 Rocker Mount 2 29 F005359 Socket Head Cap Screw M4x45 2 30 JWSS22B 430 Air Pump Bellows 2 31 JWSS22B 431 Inner Bearing Sleeve Front Rocker Ø8 03x18 40mm 2 32 JWSS22B 432 Front Rocker 2 33 JWSS22B 433 Inner Bearing Sleeve Long Ø6 03x37mm 2 ...

Страница 28: ...58 Press Bar 1 59 JWSS22B 459A Inner Bearing Sleeve Ø6 03x14 2mm 1 62 F005673 Socket Head Cap Screw M4x27 2 63 TS 1501081 Socket Head Cap Screw M4x30 4 64 TS 1550021 Flat Washer M4 8 65 TS 1550041 Flat Washer M6 2 66 F005672 Socket Head Cap Screw M4x24 2 ...

Страница 29: ... TS 0680031 Flat Washer 5 16 32 3 JWSS22B 103 Top Short Brace 14 1 2 L 2 4 JWSS18B 104 Top Long Brace 16 5 8 L 2 5 JWSS22B 105 Leg 4 6 TS 0570021 Hex Nut 5 16 18 28 7 JWSS22B 107 Bottom Short Brace 19 3 8 L 2 8 JWSS22B 108 Bottom Long Brace 21 1 2 L 2 9 JWSS22B 109 Round Hd Carriage Bolt b oxide 5 16 18 x 1 2 24 10 JWSS22B 110 Leg Extension 4 11 JWSS22B 111 Rubber washer included with saw hardware...

Страница 30: ...30 16 0 Electrical connections JWSS 18B Scroll Saw ...

Страница 31: ...ion 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 State Law Applies This w...

Страница 32: ...32 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com ...

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