JET JWL-1840EVS Operating Instructions and Parts Manual

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Operating Instructions and Parts Manual

18”x 40” Woodturning Lathe

Models JWL-1840EVS

JET

Shown with optional JWL1440-TREA tool rest extension

1.0 IMPORTANT SAFETY

INSTRUCTIONS

WARNING – To reduce risk of injury:

1. Read and understand the entire owner’s manual before attempting assembly or operation.

2. Read and understand the warnings posted on the machine and in this manual. Failure to comply with all of these warnings may cause serious injury.

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

4. This wood lathe is designed and intended for use by properly trained and experienced personnel only. If you are not familiar with the proper and safe operation of a wood lathe, do not use it until the proper training and knowledge have been obtained.

5. Do not use this lathe for other than its intended use. If used for other purposes, JET disclaims any real or implied warranty and holds itself harmless from any injury that may result from that use.

6. Always wear ANSI Z87.1 approved safety glasses or face shield while using this lathe. (Everyday eyeglasses only have impact resistant lenses; they are not safety glasses.)

7. Make certain the machine is properly grounded.

8. Before operating the machine, remove tie, rings, watches, other jewelry, and roll sleeves up past the elbows. Remove all loose clothing and confine long hair. Do not wear gloves.

9. Keep the floor around the machine clean and free of scrap material, oil and grease.

10. Keep machine guards in place at all times when the machine is in use. If removed for maintenance purposes, use extreme caution and replace the guards immediately.

11. Do not over reach. Maintain a balanced stance at all times, so that you do not fall or lean against rotating parts.

12. Make all machine adjustments or maintenance with the machine unplugged from the power source.

13. Use the right tool. Do not force a tool or attachment to do a job that it was not designed to do.

14. Make certain the switch is in the OFF position before connecting the machine to the power supply.

15. Give your work undivided attention. Looking around, carrying on a conversation and "horseplay" 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 moving parts. Do not overreach or use excessive force to perform any machine operation.

19. Use recommended accessories; improper accessories may be hazardous.

20. Do not operate this lathe while under the influence of drugs, alcohol or any medication.

21. Keep tools sharp and clean for safe and best performance. Dull tools can grab in the workpiece and be jerked from the operator's hands, causing serious injury.

22. Check the condition of the stock to be turned. Make sure it is free of knots, warpage, checked ends, improperly made or cured glue joints and other conditions which can cause it to be thrown out of the lathe.

23. Securely fasten spur and live centers to the material being used.

24. Check centers and tapers in the headstock and tailstock to be sure they are free of dirt or rust, and oil lightly before inserting centers.

25. Test each set-up by revolving the workpiece by hand to ensure it clears the tool rest and bed. Check the setup at the lowest speed before increasing to operating speed.

26. Use the correct cutting tool for the operation to be performed and keep all tools sharp.

27. Use low speeds for roughing and for long or large diameter work. If vibration occurs, stop the machine and correct the cause.

28. When sanding, remove the tool rest from the machine, apply light pressure and use a slow speed to avoid heat buildup.

29. When turning large diameter pieces, such as bowls, always operate the lathe at low speeds. See speed recommendation chart in sect.

12.0.

30. Do not attempt to engage the spindle lock pin until the spindle has stopped. If leaving the machine area, turn lathe off and wait until the spindle stops rotating before departing.

31. Make no adjustments except speed changes with the spindle rotating, and always disconnect the machine from the power source when performing maintenance to avoid accidental starting or electrical shock.

32. Provide for adequate space surrounding work area and non-glare, overhead lighting.

33. When stopping the lathe, never grab the workpiece or faceplate to slow it down. Let the work coast to a stop.

34. Use only JET factory authorized replacement parts and accessories; otherwise, the warranty and guarantee are null and void.

35. Use proper extension cord. Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. Table 1 (sect. 6.2) shows correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage number, the heavier the cord.

WARNING: This product can expose you to chemicals including lead and cadmium which are known to the State of California to cause cancer and birth defects or other reproductive harm, and phthalates which are known to the State of California to cause birth defects or other reproductive harm. For more information go to http://www.p65warnings.ca.gov.

WARNING: Drilling, sawing, sanding or machining wood products generates wood dust and other substances known to the State of California to cause cancer. Avoid inhaling dust generated from wood products or use a dust mask or other safeguards for personal protection.

Wood products emit chemicals known to the State of California to cause birth defects or other reproductive harm. For more information go to http://www.p65warnings.ca.gov/wood.

Familiarize yourself with the following safety notices used in this manual:

This means that if precautions are not heeded, it may result in minor injury and/or possible

machine damage.

This means that if precautions are not heeded, it may result in serious, or possibly even fatal,

injury.

SAVE THESE INSTRUCTIONS

2.0 About this manual

This manual is provided by JET, covering the safe operation and maintenance procedures for a JET Model JWL-1840EVS Woodturning Lathe. This manual contains instructions on installation, safety precautions, general operating procedures, maintenance instructions 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 articles. Whatever accepted methods are used, always make personal safety a priority.

If there are questions or comments, please contact your local supplier or JET. JET can also be reached at our web site: www.jettools.com.

Retain this manual for future reference. If the machine transfers ownership, the manual should accompany it.

Read and understand the entire contents of this manual before attempting assembly

or operation! Failure to comply may cause serious injury!

http://www.jettools.com/us/en/service-and-support/warranty/registration/

3.0 Table of contents

Section Page

1.0 IMPORTANT SAFETY INSTRUCTIONS ....................................................................................................... 2

2.0 About this manual .......................................................................................................................................... 3

3.0 Table of contents ............................................................................................................................................ 4

4.0 Specifications ................................................................................................................................................. 5

5.0 Setup and assembly ....................................................................................................................................... 7

5.1 Shipping contents ....................................................................................................................................... 7

5.2 Tools required for assembly ....................................................................................................................... 7

5.3 Unpacking and cleanup .............................................................................................................................. 7

5.4 Installing leg set and riser blocks ............................................................................................................... 7

5.5 Tool shelf .................................................................................................................................................... 8

5.6 Guard (optional accessory) ........................................................................................................................ 8

5.7 Bed extension (optional accessory) ........................................................................................................... 8

5.8 Spindle comparator (optional accessory) ................................................................................................... 9

6.0 Electrical connections .................................................................................................................................. 10

6.1 GROUNDING INSTRUCTIONS ............................................................................................................... 10

6.2 Extension cords ........................................................................................................................................ 10

7.0 Adjustments ................................................................................................................................................. 11

7.1 Headstock movement ............................................................................................................................... 11

7.2 Tailstock movement ................................................................................................................................. 11

7.3 Removing items from bed ........................................................................................................................ 11

7.4 Cam tightness .......................................................................................................................................... 11

7.5 Tool rest ................................................................................................................................................... 11

7.6 Tool rest extension (OPTIONAL) ............................................................................................................. 12

7.7 Locking handles ....................................................................................................................................... 12

7.8 Spindle indexing ....................................................................................................................................... 12

7.9 Spur center: Installing/removing ............................................................................................................... 12

7.10 Live center: Installing/removing .............................................................................................................. 13

7.11 Live center and cone .............................................................................................................................. 13

7.12 Spindle lock ............................................................................................................................................ 13

7.13 Face plate: 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 alignment ....................................................................................................................... 22

10.3 Pulley and belt replacement ................................................................................................................... 22

11.0 Troubleshooting JWL-1840EVS Lathe ....................................................................................................... 23

11.1 Electrical and mechanical ....................................................................................................................... 23

12.0 Recommended Lathe Speeds .................................................................................................................... 24

13.0 Optional accessories .................................................................................................................................. 24

14.0 Replacement Parts ..................................................................................................................................... 24

14.1.1 JWL-1840EVS Headstock Assembly – Exploded View ...................................................................... 25

14.1.2 JWL-1840EVS Headstock Assembly – Parts List ............................................................................... 26

14.2.1 JWL-1840EVS Controller Assembly – Exploded View ........................................................................ 28

14.2.2 JWL-1840EVS Controller Assembly – Parts List ................................................................................. 28

14.3.1 JWL-1840EVS Bed and Stand Assembly – Exploded View ................................................................ 29

14.3.2 JWL-1840EVS Bed and Stand Assembly – Parts List ........................................................................ 30

14.4.1 JWL-1840EVS Extension Bed Assembly (OPTIONAL) – Exploded View ........................................... 31

14.4.2 JWL-1840EVS Extension Bed Assembly (OPTIONAL) – Parts List ................................................... 31

14.5.1 JWL-1840EVS Guard Assembly (OPTIONAL) – Exploded View ........................................................ 32

14.5.2 JWL-1840EVS Guard Assembly (OPTIONAL) – Parts List ................................................................. 32

14.6.1 JWL-1840EVS Comparator Kit (OPTIONAL)–Exploded View ............................................................ 32

14.6.2 JWL-1840EVS Comparator Kit (OPTIONAL) – Parts List ................................................................... 3 2 

15.0 Electrical connections for JWL-1840EVS ................................................................................................... 33

16.0 Warranty and Service ................................................................................................................................. 34

4.0 Specifications

Model number ................................................................................................................................. JWL-1840EVS

Stock number .............................................................................................................................................. 719600

Motor and electricals:

Motor type .................................................................................................... totally enclosed fan cooled, induction

Horsepower ....................................................................................................................................... 2HP (1.5 kW)

Phase .................................................................................................................................................................... 3

Voltage ........................................................................................................................................................... 230 V

Cycle ............................................................................................................................................................... 60Hz

Listed FLA (full load amps) ................................................................................................................................ 5 A

Power input requirements ....................................................................................................... single phase, 230V

Starting amps ..................................................................................................................................................... 3 A

Running amps (no load) ..................................................................................................................................... 2 A

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

Drive ...................................................................................................... electronic variable speed, inverter control

On/off switch ............................................................................................................. paddle switch with safety key

Remote switch ....................................................................................................................................... with E-stop

Power cord .......................................................................................................................... SJT 3x14AWG (300V)

Power cord length ............................................................................................................................... 6 ft. (183cm)

Remote switch cord ............................................................................................................. SJT 3x14AWG (300V)

Power plug installed ............................................................................................................................. 6-15P 230V

Recommended circuit size Noise emission without load

Capacities: 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)

Swing over tool rest base ......................................................................................................... 14-1/4 in. (362 mm)

Indexing ................................................................................. 36 positions, positive locking, 10 degree increments

Swing over 20” bed extension in low position (optional accessory) ............................................ 36.6 in. (930 mm)

Headstock and Spindle:

Spindle taper ................................................................................................................................................... MT-2

Spindle thread, inboard .................................................................................................................. 1-1/4 in. x 8 TPI

Spindle thread, outboard ...................................................................................................................... 3/4"-16 (LH)

Spindle speed range .......................................................................................................... variable within 40-3200

Spindle speeds (RPM) ..................................................................................... 40-1200 (low) and 100-3200 (high)

Headstock spindle bore ................................................................................................................... 3/8 in. (10 mm)

Spindle direction ...................................................................................................................... forward and reverse

Headstock movement ................................................................................................................................... sliding

subject to local/national electrical codes

The specified values are emission levels and are not necessarily to be seen as safe operating levels. As workplace conditions vary, this information is intended to allow the user to make a better estimation of the hazards and risks involved only.

............................................................................................................................... 15A

................................................................................. 78 dB at 20 inches from motor

Tailstock:

Tailstock quill taper ......................................................................................................................................... MT-2

Tailstock bore .................................................................................................................................. 3/8 in. (10 mm)

Tailstock quill travel .................................................................................................................... 4-1/4 in. (108 mm)

Tailstock quill thread ................................................................................................................. acme, 3/4”-10 (LH)

Materials:

Legs .......................................................................................................................................................... cast iron

Bed ............................................................................................................................................................ cast iron

Headstock ................................................................................................................................................. cast iron

Headstock spindle ........................................................................................................................................... steel

Tailstock .................................................................................................................................................... cast iron

Tailstock quill ............................................................................................................. steel, with laser etched scale

Tool support and base .............................................................................................................................. cast iron

Dimensions:

Tool rest width ................................................................................................................................ 14 in. (356 mm)

Tool rest post diameter ................................................................................................................... 1 in. (25.4 mm)

Leg footprint ............................................................................................................... 54 x 20 in. (1372 x 508 mm)

Bed length .................................................................................................................................... 53 in. (1346 mm)

Bed width ................................................................................................................................... 7-1/8 in. (181 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 weight (approx..) ............................................................................................................ 484 lbs (220 kg)

L= length; W=width; H=height

The specifications in this manual were current at time of publication, 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.

5.0 Setup and assembly

The Lathe must be

disconnected from power during assembly.

5.1 Shipping contents

Carton contents (see Figure 5-1)

1 Lathe bed with headstock, tool support and

tailstock – A 1 Tool rest – B 2 Legs – C 1 Spur center – D 1 Live single bearing center – E 1 Live cone center – F 1 Live cone center pin – G 1 Knockout rod – H 1 Faceplate – J (installed on lathe) 1 Faceplate wrench – L 4 Adjustable foot – M 1 Tool shelf – N 2 Riser blocks – P 1 Hardware package 1 Operating Instructions & Parts Manual 1 Product registration card Hardware package (p/n JWL1840-HP) contents:

8 Soc. hd. cap screws, 5/16x1-1/4 – HP001

8 Lock washers, 5/16 – HP002

8 Flat washers, 5/16 – HP003

2 Soc. hd. cap screws, 3/8x3/4 – HP004

6 Lock washers, 3/8 – HP005

4 Hex cap screws, 3/8x1-1/4 – HP006

4 Flat washers, 3/8 – HP007

Figure 5-1: shipping contents (not to scale)

5.4 Installing leg set and riser blocks

5.2 Tools required for assembly

Hex keys, 6mm, 8mm Open end wrench, 14mm

5.3 Unpacking and cleanup

1. Remove all smaller items from main carton. Do

not discard carton or packing material until

lathe is assembled and running satisfactorily.

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 be

removed with a soft cloth and a cleaner-

degreaser. Clean the bed areas under

headstock, tailstock and tool support base. Do

not use an abrasive pad, and do not allow

solvents to contact painted or plastic areas.

See Figures 5-2 and 5-3.

1. If you desire to install the riser blocks for a 4” height increase, mount them to bottom of legs using fasteners (HP006/5/7) Tighten firmly.

2. Install adjustable feet into bottom of legs or riser blocks (Figure 5-2) and tighten hex nut against leg casting. The feet can be adjusted later.

Figure 5-2: riser blocks and feet

Lathe is heavy – use caution

during leg installment procedures. Use straps in good condition. Straps/lifting mechanisms must be properly rated for lathe weight.

5.4.1 Hoist lifting method

1. Position straps around lathe bed. IMPORTANT: Do not place straps around spindle, near levers, knobs or other parts that can be damaged when lifting.

2. Position lathe onto legs and secure with screws and washers (HP001/2/3, Figure 5-3) using 6mm hex key.

3. Tighten screws firmly.

Figure 5-3: installing legs

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 hex key. Slide outer collar off the guard support rod.

2. Insert guard support rod into mounting bracket at rear of headstock. You will have to lift up on spring pin, as shown, to slide guard support rod into mounting bracket. Release spring pin and it will snap into position as you slide support rod farther in.

3. Install outer collar and tighten set screw.

4. The guard can be pivoted to one of two positions: Operating mode, or tilted back for stock loading (Figure 5-5).

5. Pull up on spring pin, and begin tilting guard, then release spring pin. When guard reaches either of the two positions, spring pin will engage.

5.4.2 Manual lifting method

Use help from an assistant for

the following procedures.

1. Unscrew stud (see O, Figure 5-6) from each end of bed. (Note: studs can be stored in one of the threaded holes in lathe legs.)

2. Remove headstock, tailstock and tool rest support from bed. (Refer to sect. 7.0 for detailed instructions on adjusting and removing these items.)

3. Carefully turn bed upside down. Place a mat or cardboard beneath it to prevent scratching the bed ways.

4. Install legs with screws and washers (HP001/2/3, Figure 5-3) using 6mm hex key. Tighten screws firmly.

5. Raise bed and leg assembly right-side up.

6. Rotate adjustable feet (Figure 5-2) as needed to establish level for the lathe. Tighten hex nut on each foot against leg casting.

7. Install headstock, tool support and tailstock, and both studs (O, Figure 5-6).

Figure 5-4: installing guard (optional)

Figure 5-5: guard (optional) tilted back

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.

5.7 Bed extension (optional

accessory)

8mm hex key required.

The 20” bed extension (p/n 719401) is optional and purchased separately. See our website for information.

The bed extension can be mounted to the upper or lower holes of the lathe at tailstock end, and lower holes at headstock end. Mounting in upper holes increases spindle length capacity of lathe. Mounting extension to lower holes allows use of tool support during outboard turning.

1. Slide tailstock away from edge of bed.

2. Have an assistant hold bed extension flush to end of lathe bed, and insert screws and washers provided with bed extension (P, Figure 5-6). Snug screws just enough to hold bed extension to lathe bed.

3. Unscrew stud from lathe bed (O into hole at end of bed extension (O

4. Adjust bed extension to lathe bed, aligning the surface and the inside ways as closely as possible.

IMPORTANT: Top surface of bed extension must be flush with surface of lathe bed, and

inside ways must be aligned, to allow smooth movement of tailstock across joint.

5. Slide tailstock over joint where beds meet, so that clamping nut is centered over joint, as shown in Figure 5-6. Lock tailstock clamping handle; this will align the beds.

6. Securely tighten screws (P) in bed extension.

7. Unlock tailstock and slide it back and forth to test smoothness of joint. Make further adjustments if needed.

), and insert it

1. Install comparator spur center into guard bracket, by lifting up on plunger and inserting comparator spur center until its point is about even with the point of the spur center in the headstock spindle. See Figure 5-7. The plunger in the bracket should engage one of the holes in the comparator center at this position.

2. Install comparator bracket to tailstock with provided fasteners (Figure 5-7). Hand tighten only.

3. Install comparator dead center in the comparator bracket and tighten lock handle.

4. Slide tailstock toward headstock until comparator centers almost touch. Adjust comparator bracket as needed until centers align. Tighten screws firmly.

5. Mount spur center with the spindle blank that you will be turning. Loosen tailstock locking handle, and slide tailstock until live center is about 1-inch from spindle blank, then tighten locking handle. Advance live center using tailstock handwheel, until live center is secured in spindle blank.

6. Mount reference spindle between comparator centers.

NOTE: Reference spindle should be mounted last after all adjustment of tailstock and quill has been accomplished with spindle blank. Likewise, when turning operation is complete, remove reference spindle first.

Figure 5-6: installing bed extension (optional)

5.8 Spindle comparator (optional

accessory)

6mm hex key required.

The spindle comparator bracket and centers are optional and 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.

Figure 5-7: installing comparator (optional)

6.0 Electrical connections

Electrical connections must

be made by a qualified electrician in compliance with all relevant codes. This machine must be properly grounded to help prevent electrical shock and possible fatal injury.

The JWL-1840EVS lathe requires 230-volt singlephase input.

As received from the factory, the JWL-1840EVS is ready to run at 230-volt operation. This tool is intended for use on a circuit that has an outlet that looks like the one illustrated in Figure 6-1. The tool has a grounding plug that looks like the plug illustrated in Figure 6-1. Make sure the tool is connected to an 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 reconnection should be made by qualified service personnel; and after reconnection, the tool should comply with all local codes and ordinances.

IMPORTANT: The JWL-1840EVS Lathe cannot be run on a GFCI circuit.

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 will not fit the outlet, have a proper outlet installed by a qualified electrician.

The conductor with insulation having an outer surface 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 equipmentgrounding conductor to a live terminal.

Use only 3-wire extension cords that have 3-prong grounding plugs and 3-pole receptacles that accept the tool's plug.

Repair or replace damaged or worn cord immediately.

A lightning strike or power

surge may cause inverter failure. When lathe is not in use, disconnect power plug, or have a 3or 4-pole disconnect installed on the power side.

6.2 Extension cords

Figure 6-1: grounding

Before connecting to power source, be sure switch is in off position.

It is recommended that the lathe be connected to a dedicated 15 amp circuit with a circuit breaker or fuse. If connected to a circuit protected by fuses, use time delay fuse marked “D”. Local codes take precedence over recommendations.

6.1 GROUNDING INSTRUCTIONS

This tool must be grounded. In the event of a malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electric shock. This tool is equipped with an electric cord having an equipment-grounding conductor and a grounding plug. The plug must be inserted into an appropriate outlet that is properly installed and grounded in accordance with all local codes and ordinances.

The use of extension cords is discouraged; try to position equipment within reach of the power source. If an extension cord becomes necessary, be sure it is heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating.

Table 1 shows recommended size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord.

Ampere Rating

More Than

00 06 18 16 16 14

06 10 18 16 14 12

10 12 16 16 14 12

12 16 14 12

Not More Than

Extension Cord Recommendations

Volts

120 240

AWG

Total length of cord in feet

100

Table 1

100 200

Not Recommended

150 300

7.0 Adjustments

of bed, and the tailstock moved to accommodate the workpiece.

7.1 Headstock movement

Push handle (A, Figure 7-1) downward to unlock. Headstock will slide freely along length of bed. Push handle up to lock.

Always lock headstock in

position before operating lathe.

Figure 7-1: headstock movement

7.2 Tailstock movement

To slide tailstock, push locking handle (C, Figure 7-

3) down toward bed. Push handle up to lock tailstock in position.

To move quill, loosen handle (D) and rotate handwheel (E).

Make sure tailstock is locked

to bed (C) and quill is tightened (D) before turning a spindle on the lathe.

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 from end of lathe bed, and slide tailstock off.

2. Turn tailstock on its side, and tighten lock nut (F, Figure 7-4) to increase cam pressure, or loosen the nut to relieve cam pressure.

3. Mount tailstock on bed and lock it to verify adjustment. Repeat as needed.

4. Reinstall stud.

7.5 Tool rest

Figure 7-3: tailstock movement

7.3 Removing items from bed

To remove headstock, tailstock or toolrest base from bed, unscrew and remove either of the studs (see O, Figure 5-6). Unlock the item and slide it off bed. After remounting these items on the lathe, reinstall studs.

For most turning operations, except outboard turning, the headstock is positioned at the left end

See Figure 7-5.

A 14-inch tool rest is provided with your lathe. It is designed to allow adjustment for height, position on the bed, and angle to the work.

Loosen locking handle on tool rest base (G, Figure 7-5) to slide base forward or back, and to angle it to the bed. Tighten locking handle firmly before operating lathe.

Loosen handle (H) to raise or lower tool rest and angle it to the work. Tighten handle before operating lathe.

Figure 7-5: tool rest

7.6 Tool rest extension (OPTIONAL)

See Figure 7-6.

The tool rest extension (optional accessory, #JWL1440-TREA, see your dealer to order) mounts to the tool rest base and offers greater reach for the tool rest when turning off the bed, when the headstock is at the opposite end. See Figure 7-6.

Make sure the clamp bushings (K) are pulled apart sufficiently to accept tool rest post.

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 lock for this purpose.

Figure 7-7: index pin

Figure 7-6

7.7 Locking handles

Locking handles, such as H, Figure 7-5, are adjustable. Simply lift out on handle, rotate it on the pin, then release it, making sure it seats itself on the pin.

7.8 Spindle indexing

See Figure 7-7.

Indexing is used to create evenly spaced features in a workpiece, while keeping the lathe spindle locked; for example, when cutting flutes on a spindle blank with a hand-held router, while the spindle blank is secured between lathe centers.

The JWL-1840EVS lathe provides 36 indexing positions at 10-degree increments.

1. Rotate spindle using handwheel until index pin (L, Figure 7-7) aligns with desired hole.

7.9 Spur center: Installing/removing

The spur center is installed into the headstock spindle. The center should first be mounted to your workpiece, and then installed into the spindle. See section 9.4.

1. Disconnect lathe from power source.

2. Clean tapered end of center, and inside of headstock spindle, then push center into headstock spindle.

3. To remove a center, first remove workpiece from lathe. Insert knockout rod (Figure 7-8) through hole in handwheel and tap the end of spur center.

IMPORTANT: Hold the center by either placing your thumb and forefinger on outside diameter of spur center, or wrapping the center with a rag. The center can be damaged if allowed to fall.

Figure 7-8: removing spur center

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