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18 

 

Figure 9-5 

9.5

  Cutting Techniques 

9.5.1

  Roughing Out 

1.  Begin  with a large roughing gouge. Place the 

tool on the tool rest with the heel of the tool on 

the surface to be cut. 

2.  Slowly and gently raise tool handle until cutting 

edge comes into contact with the workpiece. 

3.  Beginning  about  2”  from  the  tailstock  end  of 

the  workpiece,  roll  the  flute  (hollowed-out 

portion)  of  the  tool  in  the  direction  of  the  cut. 

See Figure 9-6. Make long sweeping cuts in a 

continuous motion to rough the piece down to 

a cylinder. 

4.  Keep  as  much  of  the  bevel  of  the  tool  as 

possible  in  contact  with  the  workpiece  to 

ensure  control  and  avoid  catches.  NOTE: 

Always cut down-hill, or from large diameter to 

small diameter. Always work 

toward

 the end of 

a work-piece, never start cutting at the end. 

 

Figure 9-6 

5.  Once  the  workpiece  is  roughed  down  to  a 

cylinder, smooth it with a large skew. Keep the 

skew handle perpendicular to the spindle and 

use only the center third of the cutting edge for 

a  long  smoothing  cut  (touching  one  of  the 

points  of  the  skew  to  the  spinning  workpiece 

may cause a catch and ruin the workpiece). 

6.  Add details to the workpiece with skew, parting 

tool, scraper or spindle gouge. 

9.5.2

  Beads 

1.  Make a parting cut for what is to be a bead to 

the desired depth. Place the parting tool on the 

tool  support  and  move  tool  forward  to  make 

the full bevel of the tool come into contact with 

the workpiece. Gently raise handle to make cut 

to the appropriate depth. 

2.  Repeat for other side of the bead. 

 

3.  Using a small skew or spindle gouge, start in 

the center between the two cuts and cut down 

each  side  to  form  the  bead.  Roll  the  tool  in 

direction of cut. 

9.5.3

  Coves 

1.  Use a spindle gouge. With the flute of the tool 

at 90 degrees to the workpiece, touch the point 

of the tool to the workpiece and roll in towards 

the bottom of the cove. See Figure 9-7. 

Stop 

at  the  bottom;  attempting  to  go  up  the 

opposite side may cause the tool to catch.

 

 

Figure 9-7 

2.  Move  the  tool  over  the  desired  width  of  the 

cove.  

3.  With  the  flute  facing  the  opposite  direction, 

repeat  step  1  for  other  side  of  cove.  Stop  at 

bottom of cut. 

9.5.4

  "V" Cuts 

1.  Use the long point of the skew. (NOTE: Do not 

press  the  long  point  of  the  skew  directly  into 

the workpiece to create the "V"; this will result 

in a burned or burnished "V" with fibers being 

rolled up at both sides.) 

2.  Lightly mark the center of the "V" with the tip of 

the skew. 

3.  Move the point of the skew to the right half of 

the desired width of your cut. 

4.  With the bevel parallel to the right side of the 

cut, raise the handle and push the tool in to the 

desired depth, as shown in Figure 9-8. 

Summary of Contents for JWL1440-TREA

Page 1: ...athe Models JWL 1840EVS JET 427 New Sanford Road Part No M 719600 LaVergne Tennessee 37086 Edition 4 12 2018 Ph 800 274 6848 ECR 181010091219 www jettools com Copyright 2017 JET Shown with optional JWL1440 TREA tool rest extension This pdf document is bookmarked ...

Page 2: ...o the power supply 15 Give your work undivided attention Looking around carrying on a conversation and horse play are careless acts that can result in serious injury 16 Keep visitors a safe distance from the work area Keep children away 17 Make your workshop child proof with padlocks master switches or by removing starter keys 18 Maintain a balanced stance at all times so that you do not fall onto...

Page 3: ... and parts breakdown Your machine has been designed and constructed to provide consistent long term operation if used in accordance with the instructions as set forth in this document This manual is not intended to be an exhaustive guide to lathe operational methods use of after market accessories choice of stock and such Additional knowledge may be obtained from experienced users or trade article...

Page 4: ... Installing removing 13 7 14 Checking center alignment 14 7 15 Speed Range Adjustment 14 8 0 Operating controls 14 8 1 AC Inverter 15 9 0 Operation 16 9 1 Inspection 16 9 2 Turning Tools 16 9 3 Spindle Turning 16 9 4 Stock Selection 17 9 5 Cutting Techniques 18 9 6 Face Plate and Bowl Turning 19 9 7 Bowl Turning Techniques 20 10 0 User maintenance 22 10 1 General procedures 22 10 2 Pulley and belt...

Page 5: ...pacities Working distance between centers with single bearing center 40 1 2 in 1029 mm with live cone center 38 1 4 in 972 mm Working distance between centers optional 20 bed ext mounted with single bearing center 60 1 2 in 1537 mm with live cone center 58 1 4 in 1480 mm Max distance between spindle face and tailstock quill optional 20 bed ext mounted 62 in 1575 mm Swing over bed 18 5 in 470 mm Sw...

Page 6: ... mm Bed gap 1 3 4 in 44 5 mm Centerline spindle to floor without risers 39 1 4 in 997 mm with risers 43 1 4 in 1098 5 mm Tool rest post diameter 1 in 25 4 mm Shipping dimensions LxWxH 57 x 31 x 28 in 1448 x 788 x 711 mm Overall dimensions assembled LxWxH 73 x 52 1 2 x 20 in 1854 x 1334 x 508 mm Bed Extension length optional accessory 20 in 508 mm Weights Net weight approx 418 lbs 190 kg Shipping w...

Page 7: ...tisfactorily 2 Inspect contents for shipping damage if any is found report it to your distributor 3 Compare contents of shipping carton with the contents list in this manual Report shortages if any to your distributor Note Check lathe first some parts may have been pre installed 4 Exposed metal areas of the Lathe such as bedways and spindles have been factory coated with a protectant This should b...

Page 8: ...st leg casting 7 Install headstock tool support and tailstock and both studs O Figure 5 6 5 5 Tool shelf The tool shelf N can be mounted to either end of lathe with screws and washers HP004 5 5 6 Guard optional accessory 4mm hex key required The guard part no 719002 is optional and purchased separately See our website for information 1 Loosen set screw on outer collar shown in Figure 5 4 with 4mm ...

Page 9: ... purchased separately See our website for information The spindle comparator consists of two centers inserted into the brackets at rear of lathe The comparator is used to mount a finished or reference spindle from which measurements can be taken the measurements being transferred to the new piece being turned 1 Install comparator spur center into guard bracket by lifting up on plunger and insertin...

Page 10: ...must be inserted into an appropriate outlet that is properly installed and grounded in accordance with all local codes and ordinances Improper connection of the equipment grounding conductor can result in a risk of electric shock Check with a qualified electrician or service person if you are in doubt as to whether the outlet is properly grounded Do not modify the plug provided with the tool if it...

Page 11: ...bed and the tailstock moved to accommodate the workpiece 7 4 Cam tightness The clamping mechanisms of headstock tailstock and tool rest base are pre set by the manufacturer and should not require adjustment If one of them does not tighten properly against the bed when the locking handle is tightened adjust it as follows Figure 7 4 uses tailstock as example Figure 7 4 cam adjustment 1 Remove stud f...

Page 12: ... spindle using handwheel until index pin L Figure 7 7 aligns with desired hole 2 Screw index pin into hole until it engages spindle 3 Perform desired procedure 4 Unscrew index pin until spindle is released Rotate spindle to next desired hole and repeat Disengage index pin before starting lathe IMPORTANT Do not use index pin to lock spindle which will cause unnecessary wear to the pin Use spindle l...

Page 13: ...d without the cone To remove cone from live center first insert pin through hole in live center body as shown If pin will not insert at first rotate cone until pin can be inserted The cone can now be removed by holding the body stationary while unscrewing cone Figure 7 10 removing cone from live center 7 12 Spindle lock Push spindle lock pin P Figure 7 11 and rotate spindle slightly until pin enga...

Page 14: ...nt slack in the belt to reposition it to the other steps on the sheaves The label on access door shows required belt position also shown in Figure 7 14 5 Loosen pivot lock handle A and lower motor to tension belt Be sure that Poly V grooves of belt seat properly in corresponding groove of sheave Do not over tension a very light pressure on tension handle B is adequate to prevent belt slippage 6 Ti...

Page 15: ...fications The inverter controls the speed of the motor by varying the frequency of the voltage supplied to the motor The inverter takes the 1 phase input from the power cord and converts it to the 3 phase output required by the drive motor The inverter provides an acceleration ramp that eliminates the shock of normal starting Also a braking feature eliminates long coasting periods after the Lathe ...

Page 16: ...ther details Deep Fluted Bowl Gouge 1 4 3 8 and 1 2 used for turning bowls plates Square Scraper Bedan 3 8 or 1 2 used to create square shoulders Large Round Nose Domed Scraper 1 1 2 used to reduce ridges on interior of bowls round edges of bowls etc Parting Tool 1 8 used for scraping making a cut off or to set diameters for sizing For safety and best performance keep tools sharp If a tool stops c...

Page 17: ...he workpiece onto the spur center while it is mounted in the Lathe spindle Figure 9 4 4 Make sure headstock is locked to lathe bed 5 Clean tapered end of spur center and inside of headstock spindle 6 Insert tapered end of spur center with the attached workpiece into headstock spindle 7 Support the workpiece while bringing the tailstock into position about 1 inch away from end of workpiece Lock tai...

Page 18: ... parting cut for what is to be a bead to the desired depth Place the parting tool on the tool support and move tool forward to make the full bevel of the tool come into contact with the workpiece Gently raise handle to make cut to the appropriate depth 2 Repeat for other side of the bead 3 Using a small skew or spindle gouge start in the center between the two cuts and cut down each side to form t...

Page 19: ...to desired position or remove tailstock and tool support base and slide headstock to opposite end of bed 9 6 1 Mounting Stock Use of a face plate is the most common method for holding a block of wood for turning bowls and plates 1 Select stock at least 1 8 to 1 4 larger than each dimension on the finished workpiece 2 Always select the largest diameter face plate that can be used for the workpiece ...

Page 20: ...er types of gouges It also allows removal of wood much faster and with less vibration than other gouges Most average sized bowl work can be accomplished with a 3 8 or 1 2 bowl gouge A 1 4 bowl gouge is best suited for smaller bowls and light finishing cuts Larger 3 4 and 1 bowl gouges are only used for extremely large pieces Large domed scrapers can also be used to help clean up the interior surfa...

Page 21: ... 7 Develop wall thickness at the rim and maintain it as you work deeper into the bowl Once the piece is thin toward the bottom you cannot make it thinner at the rim When the interior is finished move the tool support to exterior to re define bottom of bowl General rule of thumb the base should be approximately 1 3 the overall diameter of the bowl 8 Work the tight area around faceplate or chuck wit...

Page 22: ...oosen two set screws on spindle pulley E Figure 9 12 with 3mm hex key and slide spindle pulley into proper position Retighten set screws and disengage spindle lock When pulleys and belt are properly aligned there should be no unusual pulsing sounds or noise coming from the belt 10 3 Pulley and belt replacement See Figure 9 12 3mm hex key required To change out a belt or pulley carefully proceed as...

Page 23: ...set too low Reposition tool rest height Tool rest set too far from workpiece Reposition tool rest closer to workpiece Improper tool being used Use correct tool for operation Headstock moves when applying pressure with Tailstock Locking handle not tight Tighten handle Excessive pressure being applied by tailstock Slide headstock to left end lock firmly then apply pressure to workpiece with tailstoc...

Page 24: ...e phone number on the cover 719001 Tailstock Swing Away 719002 Guard 719401 20 Extension Bed w Post 719601 Spindle Comparator Kit JWL1440 TREA Tool Rest Extension Assembly 14 0 Replacement Parts Replacement parts are listed on the 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 Numb...

Page 25: ...25 14 1 1 JWL 1840EVS Headstock Assembly Exploded View ...

Page 26: ...ndle Lock Pin 1 28 JWL1442 121 Bracket 1 29 4224B 143 Wear Resistant Washer 1 30 4224B 1122E Sliding Plate 1 31 TS 0253031 Socket Head Button Screw 10 24x1 2 6 39 JWL1840EVS 139 Belt 220J 8 1 40 JWL1640EVS 140 Socket Head Cap Screw 10 24x1 4 2 41 JWL1640EVS 141 Cushion 1 42 JWL1442 127 Bushing 1 43 JWL1442 128A Bolt 1 46 JWL1442 154 Clamp 1 47 TS 0650081 Hex Nylon Lock Nut 3 4 10 1 48 JWL1840EVS 1...

Page 27: ...196E Strain Relief PG 13 5 1 80 JWL1221VS 269E Wrench includes 81 1 81 JWL1221VS 270 Rubber Grip 1 82 JWL1640EVS 182 Rubber Grip 1 85 TS 0810012 Pan Head Screw 10 24x1 4 1 86 TS 0733031 Ext Tooth Lock Washer 10 1 87 JWL1840EVS 187 Remote Switch Assembly Includes 88 thru 92 1 88 JML 70E Strain Relief PG9 1 89 6295761E Remote Switch Box Assembly 1 90 JWL1840EVS 190 E Stop Switch Assembly 1 91 4224B ...

Page 28: ...4x1 2 4 9 JWL1640EVS 160 Pan Head Screw 10 24x1 1 10 JWL1640EVS CA Controller Assembly includes 11 thru 23 1 11 JWL1642 143 Variable Speed Knob 1 12 LM000066 Control Panel Label 1 13 JWL1640EVS 213 Main Switch 1 14 JWL1640EVS 214 Control Front Cover includes 12 1 15 4224B 148 Switch Fwd Rev 1 16 6295915 Control Pot Assembly 1 17 JWL1640EVS 217 PC Board 1 18 JWL1640EVS 218 Back Box 1 19 JWL1221VS 3...

Page 29: ...29 14 3 1 JWL 1840EVS Bed and Stand Assembly Exploded View ...

Page 30: ...1 22 JWL1221VS 227 Key 1 23 JWL1640EVS 323 Socket Head Button Screw 10 32x5 8 1 24 JWL1015 137 Tailstock Lock Handle 1 25 JWL1840EVS 325 Tailstock Casting 1 26 JWL1440 226 Handwheel 1 27 JWL1442 211 Handle 1 28 TS 0267041 Set Screw 1 4 20x 3 8 2 29 JWL1440 229 C Ring S 12 1 30 JWL1440 230 Bolt 1 31 LM000214 ID Label JWL 1840EVS 1 32 JWL1221VS 211 Warning Label 1 33 TS 0570031 Hex Nut 3 8 2 34 TS 0...

Page 31: ... OPTIONAL Parts List Index No Part No Description Size Qty 719401 20 Extension Bed w Post includes 1 thru 6 1 1 JWL1440 301 Extension Bed 20 1 2 TS 0209071 Socket Head Cap Screw 3 8 16x1 1 2 4 3 TS 0720091 Lock Washer 3 8 4 4 TS 0680041 Flat Washer 3 8 4 5 3520B 310 Extension Post 1 6 6294763 Locking Handle 1 ...

Page 32: ... Screw 5 16 18 x 1 4 2 14 6 1 JWL 1840EVS Comparator Kit OPTIONAL Exploded View 14 6 2 JWL 1840EVS Comparator Kit OPTIONAL Parts List Index No Part No Description Size Qty 719601 Spindle Comparator Kit 1 thru 7 1 3520B 151 Comparator Rear Center 1 2 3520B 275 Comparator Spur Center 1 3 JWL1840EVS 403 Comparator Bracket 1 4 6350031 Handle 3 8 1 5 TS 0208071 Socket Head Cap Screw 5 16 18x1 1 4 2 6 T...

Page 33: ... 3 1 3 0 29 28 27 2 6 2 5 2 4 2 3 2 2 2 1 20 19 18 1 7 1 6 1 5 1 4 1 3 1 2 11 10 9 8 7 6 5 4 3 2 BRAKE RESISTOR purple Orange Red Brown Gray Red Orange Black Brown Yellow Blue Gray Purple Green Red 1 Black 2 White 3 Black Yellow Green Blue Main SWITCH Spindle Collar Sensor E Stop switch S L2 R L1 Black White ...

Page 34: ...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 warra...

Page 35: ...35 ...

Page 36: ...36 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com ...

Page 37: ...37 ...

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