Jet J-7020M, J-7040M Operating Instructions And Parts Manual

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Operating Instructions and Parts Manual

10-Inch x 16-Inch Miter Cut-Off Band Saw

Models: J-7020M, J-7040M, J-7040-M

WMH TOOL GROUP, Inc.

Model J-7020M shown

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Warranty and Service

WMH Tool Group, Inc., warrants every product it sells. If one of our tools needs service or repair, one of our Authorized Service Centers located throughout the United States can give you quick service. In most cases, any of these WMH Tool Group Authorized Service Centers can authorize warranty repair, assist you in obtaining parts, or perform routine maintenance and major repair on your JET® tools. For the name of an Authorized Service Center in your area call 1-800-274-6848.

MORE INFORMATION WMH Tool Group is consistently adding new products to the line. For complete, up-to-date product information, check with

your local WMH Tool Group distributor, or visit jettools.com. WARRANTY JET products carry a limited warranty which varies in duration based upon the product (MW stands for Metalworking, WW

stands for Woodworking).

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Warranty reverts to 1 Year Warranty if woodworking (WW) products listed above are used for industrial or educational purposes.

WHAT IS COVERED? This warranty covers any defects in workmanship or materials subject to the exceptions stated below. Cutting tools,

abrasives and other consumables are excluded from warranty coverage.

WHO IS COVERED?

This warranty covers only the initial purchaser of the product.

WHAT IS THE PERIOD OF COVERAGE?

The general JET warranty lasts for the time period specified in the product literature of each product.

WHAT IS NOT COVERED?

Three Year, Five Year and Lifetime Warranties do not cover products used for industrial or educational purposes. Products with Three Year, Five Year or Lifetime Warranties that are used for industrial or education purposes revert to a One Year Warranty. This warranty does not cover defects due directly or indirectly to misuse, abuse, negligence or accidents, normal wear-and-tear, improper repair or alterations, or lack of maintenance.

HOW TO GET SERVICE

The product or part must be returned for examination, postage prepaid, to a location designated by us. For the name of the location nearest you, please call 1-800-274-6848.

You must provide proof of initial purchase date and an explanation of the complaint must accompany the merchandise. If our inspection discloses a defect, we will repair or replace the product, or refund the purchase price, at our option. We will return the repaired product or replacement at our expense unless it is determined by us that there is no defect, or that the defect resulted from causes not within the scope of our warranty in which case we will, at your direction, dispose of or return the product. In the event you choose to have the product returned, you will be responsible for the shipping and handling costs of the return.

HOW STATE LAW APPLIES

This warranty gives you specific legal rights; you may also have other rights which vary from state to state.

LIMITATIONS ON THIS WARRANTY

WMH TOOL GROUP LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD OF THE LIMITED WARRANTY FOR EACH PRODUCT. EXCEPT AS STATED HEREIN, ANY IMPLIED WARRANTIES OR MERCHANTABILITY AND FITNESS ARE EXCLUDED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG THE IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.

WMH TOOL GROUP 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.

WMH Tool Group sells through distributors only. The specifications in WMH catalogs are given as general information and are not binding. Members of WMH Tool Group reserve 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 branded products are not sold in Canada by WMH Tool Group.

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Table of Contents

Cover Page .................................................................................................................................. 1

Warranty....................................................................................................................................... 2

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

General Specifications .................................................................................................................. 4

Warning..................................................................................................................................... 5-6

Introduction ................................................................................................................................7

Miter Cut-Off Saw Features .......................................................................................................... 7

Operating Instructions ............................................................................................................... 7

Controls ....................................................................................................................................... 7

Setting Blade Speed ..................................................................................................................... 8

Raising/Lowing Saw Head ............................................................................................................ 8

Controlling the Cut: Hydraulic Feed Control ................................................................................... 9

Evaluating cutting Efficiency .......................................................................................................... 9

Blade Selection............................................................................................................................. 9

Break-in procedures ..................................................................................................................... 9

Work Set-up .............................................................................................................................. 10

Settting Head Angle ..................................................................................................................... 10

Securing Workpiece ................................................................................................................... 10

Adjusting the Vise for Angle Cuts ................................................................................................. 10

Installation and Adjustment of Work Stop ......................................................................................11

Starting the Saw ..........................................................................................................................11

Coolant Flow ...............................................................................................................................11

Coolant Mixture and Quantity ....................................................................................................... 12

Adjustments .............................................................................................................................. 12

Blade Tracking Adjustment .......................................................................................................... 12

Factory or Field Procedure .......................................................................................................... 12

Blade Guide Bearing Adjustment ................................................................................................. 13

Test Cutting to Verify Adjustment Accuracy.................................................................................. 14

Adjustment of the Limit Switch ................................................................................................... 14

Maintenance ............................................................................................................................. 14

Cleaning ..................................................................................................................................... 14

Lubrication .................................................................................................................................. 15

Changing Blades ........................................................................................................................ 15

Changing the Drive Belt ............................................................................................................... 15

Replacing the Drive Motor............................................................................................................ 15

Adjusting the Counterbalance Spring ........................................................................................... 15

Replacing the Drive Wheel .......................................................................................................... 16

Replacing Idler Wheel or Idler Bearing ......................................................................................... 16

Adjusting the Blade Guides .......................................................................................................... 16

Replacement of Carbide Blade Guide .......................................................................................... 16

Replacement of Guide Bearings .................................................................................................. 17

Replacement of Blade Edge Bearings ......................................................................................... 17

Replacement of the Wire Brush .................................................................................................. 17

Machine Setup.......................................................................................................................... 17

Uncrating and Spotting ................................................................................................................ 17

Electrical ............................................................................................................................... 18-19

Troubleshooting.................................................................................................................. 20-21

Replacement Parts ................................................................................................................... 21

Exploded View and Partslist for Saw Base .............................................................................. 22-24

Exploded View and Partslist for Saw Head.............................................................................. 25-27

General Specifications

The JET Model J-7020M and J-7040M Miter Cut-off Saws cover a wide variety of applications in machine shops, maintenance shops, tool rooms, fabrication and welding shops, and almost any other application requiring a general purpose cut-off band saw. These models offer more standard features designed to provide maximum performance, greater accuracy and more economical operation.

The J-7020M and J-7040M models are equipped with a 45-degree swivel head mitering capability which makes these saws ideally suited for jobs with many angle cuts and limited workshop space. The work piece remains fixed while the head swivels to cut any angle from 0 to 45 degrees and locks with a quick acting lever.

Specifications

Model J-7020M J-7040M J-7040M-4

Stock Number 414474 414475 414484 Cutting Capacity: Round @ 90 degree 10 Inches 10 Inches 10 Inches Rectangle @ 90 degree 10 x14/2x16 Inches 10 x14/2x16 Inches 10 x14/2x16 Inches Round @ 45 degree 10 Inches 10 Inches 10 Inches Rectangle @ 45 degree 10x10 Inches 10x10 Inches 10x10 Inches Blade Size 1x0.035x135 Inches 1x0.035x135 Inches 1x0.035x135 Inches

Blade Speed 100 to 350 Feet/Min. 100 to 350 Feet/Min. 100 to 350 Feet/Min Blade Wheels 14-Inch Dia. Cast Iron 14-Inch Dia. Cast Iron 14-Inch Dia. Cast Iron Blade Guides Adjustable, 6-point Adjustable, 6-point Adjustable, 6-point

Contact, Bearing- Contact, Bearing- Contact, Bearingand-Guide Type and-Guide Type and-Guide Type

Drive Motor 110/220VAC/60Hz 220/440VAC/60Hz 460VAC/60Hz

1.5 HP/1 Phase 2 HP/3 Phase 2 HP/3 Phase Vise Rapid Acting Rapid Acting Rapid Acting Coolant System Note 1 Note 1 Note 1 Dimensions: Length 79 Inches 79 Inches 79 Inches Width 31 Inches 31 Inches 31 Inches Height 41 Inches 41 Inches 41 Inches Weight (Net) 794 pounds 794 pounds 794 pounds

Note 1: Recirculating system consists of a 1 GPM pump in an 8-gallon reservoir. Coolant applied through the

blade guides.

- Misuse of this machine can cause serious injury.

- For safety, machine must be set up, used and serviced properly.

- Read, understand and follow instructions in the Operating Instructions and Parts Manual which was shipped with your machine.

When Setting up Machine:

- Always avoid using machine in damp or poorly lighted work areas.

- Always be sure the machine support is se-

curely anchored to the floor or the work bench.

When Using Machine:

- Always wear safety glasses with side shields

(See ANSI Z87.1)

- Never wear loose clothing or jewelry.

- Never overreach - you may slip and fall.

When Servicing Machine:

- Always disconnect the machine from its electri-

cal supply while servicing.

- Always follow instructions in Operating Instruc tions and Parts Manual when changing acces sory tools or parts.

- Never modify the machine without consulting Wilton Corporation.

You - the Stationary Power Tool User - Hold the Key to Safety.

Read and follow these simple rules for best results and full benefits from your machine. Used properly, Wilton’s machinery is among the best in design and safety. However, any machine used improperly can be rendered inefficient and unsafe. It is absolutely mandatory that those who use our products be properly trained in how to use them correctly. They should read and understand the Operating Instructions and Parts Manual as well as all labels affixed to the machine. Failure in following all of these warnings can cause serious injuries.

Machinery General Safety Warnings

1. Always wear protective eye wear when

operating machinery. Eye wear shall be impact resistant, protective safety glasses with side shields which comply with ANSI Z87.1 specifications. Use of eye wear which does not comply with ANSI Z87.1specifications could result in severe injury from breakage of eye protection.

2. Wear proper apparel. No loose clothing or

jewelry which can get caught in moving parts. Rubber soled footwear is recommended for best footing.

3. Do not overreach. Failure to maintain proper

working position can cause you to fall into the machine or cause your clothing to get caught pulling you into the machine.

4. Keep guards in place and in proper working

order. Do not operate the machine with guards re moved.

5. Avoid dangerous working environments. Do

not use stationary machine tools in wet or

damp locations. Keep work areas clean and well lit.

6. Avoid accidental starts by being sure the start

switch is OFF before plugging in the machine.

7. Never leave the machine running while unat-

tended. Machine shall be shut off whenever it is not in operation.

8. Disconnect electrical power before servicing.

Whenever changing accessories or general maintenance is done on the machine, electri-

cal power to the machine must be disconnected before work is done.

9. Maintain all machine tools with care. Follow all maintenance instructions for lubricating and the changing of accessories. No attempt shall be made to modify or have makeshift repairs done to the machine. This not only voids the warranty but also renders the machine unsafe.

10. Machinery must be anchored to the floor.

11. Secure work. Use clamps or a vise to hold work, when practical. It is safer than using your hands and it frees both hands to operate the machine.

12. Never brush away chips while the machine is in operation.

13. Keep work area clean. Cluttered areas invite accidents.

14. Remove adjusting keys and wrenches before turning machine on.

15. Use the right tool. Don’t force a tool or attachment to do a job it was not designed for.

16. Use only recommended accessories and follow manufacturers instructions pertaining to them.

17. Keep hands in sight and clear of all moving parts and cutting surfaces.

18. All visitors should be kept at a safe distance from the work area. Make the workshop completely safe by using padlocks, master switches, or by removing starter keys.

19. Know the tool you are using - its application, limitations, and potential hazards.

20. Some dust created by power sanding, sawing, grinding, drilling and other construction activities contains chemicals known to cause cancer, birth defects or other reproductive harm. Some ex amples of these chemicals are:

Lead from lead based paint Crystalline silica from bricks and cement

and other masonry products, and

arsenic and chromium from chemically treated lumber.

21. Your risk from those exposures 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 those dust masks that are specifically designed to filter out microscopic

particles.

Conductor Length AWG (American Wire Gauge) Number

240 Volt Lines 120 Volt Lines

0 - 50 Feet No. 14 No. 14 50 - 100 Feet No. 14 No. 12

Over 100 Feet No. 12 No. 8

General Electrical Cautions

This saw should be grounded in accordance with the National Electrical Code and local codes and ordinances. This work should be done by a qualified electrician. The saw should be grounded to protect the user from electrical shock.

Wire SizesCaution:

For circuits which are far away from the electrical service box, the wire size must be increased in order to deliver ample voltage to the motor. To minimize power losses and to prevent motor overheating and burnout, the use of wire sizes for branch circuits or electrical extension cords according to the following table is recommended.

Safety Instructions on Sawing Systems

1. Always wear leather gloves when handling saw blade. The operator shall not wear gloves when operating the machine.

2. All doors shall be closed, all panels replaced, and other safety guards in place prior to the machine being started or operated.

3. Be sure that the blade is not in contact with the workpiece when the motor is started. The motor shall be started and you should allow the saw to come up to full speed before bringing the saw blade into contact with the workpiece.

4. Keep hands away from the blade area. See

Figure A.

5. Remove any cut off piece carefully while keeping your hands free of the blade area.

6. Saw must be stopped and electrical supply must be cut off before any blade replacement or adjustment of blade support mechanism is done, or before any attempt is made to change the drive belts or before any periodic service or maintenance is performed on the saw.

7. Remove loose items and unnecessary workpieces from area before starting machine.

8. Bring adjustable saw guides and guards as close as possible to the workpiece.

9. Always wear protective eye wear when operating, servicing, or adjusting machinery. Eyewear shall be impact resistant, protective safety glasses with side shields complying with ANSI Z87.1 specifications. Use of eye wear which does not comply with ANSI Z87.1 specifications could result in severe injury from breakage of eye protection. See Figure B.

10. Nonslip footwear and safety shoes are recommended. See Figure C.

11. Wear ear protectors (plugs or muffs) during extended periods of operation. See Figure D.

12. The workpiece, or part being sawed, must be securely clamped before the saw blade enters the workpiece.

13. Remove cut off pieces carefully, keeping hands away from saw blade.

14. Saw must be stopped and electrical supply cut off or machine unplugged before reaching into cutting area.

15. Avoid contact with coolant, especially guarding your eyes.

Introduction

Operating Instructions

This manual includes the operating and maintenance instructions for the JET 10 X 16-inch Miter Cut-Off Saws, Models J-7020M and J-7040M. This manual also includes parts listings and illustrations of replaceable parts for the miter cut-off saws.

Miter Cut-Off Saw Features

Refer to Figures 1 and 2 for key features of the Models J-7020M and J-7040M Miter Cut-Off Saw. The miter cut-off saws are nearly identical to JET's Model J-7020 and J-7040 cut-off saws except that they are equipped with a 45 degree swivel head. The swivel head provides the capability to cut material at angles from 0 to 45 degrees. The swivel head locks and unlocks with a quick acting lever.

Saw Head

Blade Guides

Turn Plate

Blade Guide Supports

Worktable Pivot Pin

Figure 1: Key Features (Front View)

Hydraulic Cylinder

Drive Motor

Vise Jaw (Fixed)

Vise Jaw (Moveable)

Counterbalance spring

Work Table

Coolant Valves

Base

Blade Cover

Coolant Temperature

Feed Rate Control

Saw Head

Table Hard Stop

Belt Cover

Speed Control

Controls

The operating controls for the saw are provided in a control panel on the left side of the machine. The control panel is mounted on a pivoting tube. The pivoting tube allows the operator to position the control panel in a convenient location.

Power-on Light

Motor Pushbutton

Emergency

Reset

Button

Saw Head Pushbutton

Figure 3: Control panel

1. A power-on light is provided on the left side of the

control panel. The power-on light indicates when

power is connected to the machine.

2. A large, emergency stop button is provided on

the control panel. The emergency stop button

provides a means to rapidly cut off electrical

power.

3. A saw motor pushbutton switch is provided to the

left of the emergency reset button. The sawmotor

pushbutton switch starts the saw motor and the

E-stop button stops the saw motor.

4. A green pushbutton switch is provided to the right

of the emergency stop pushbutton. The

pushbutton opens an electro-magnetic valve in

the hydraulic cylinder circuit. Opening the valves

allows the saw head to move downward and put

the saw blade in contact with the workpiece.

5. A red release button on the electro-magnetic

valve provides a means to lower the saw head

when power to the machine has been discon-

nected (see figure 6).

6. The rate at which the saw head moves downward

is controlled by a hydraulic feed rate control

located on the top, rear of the saw head (see

figure 5).

7. A coolant pump switch is provided on the electri-

cal equipment box on the back of the machine.

8. The quick acting swivel-head lock (refer to Figure

7) is used to release and lock the swivel-head

when making angular material cuts.

Figure 2: Key Features (Rear View)

Coolant Pump Switch

Coolant Pump Access Panel

Machine Base

4. The feed rates on the placard are expressed in feet per minute. The feed rate graduations available on the indicator may not match the recommended feed rate. An approximate speed may therefore be required. For example, to set a speed rate of 130 feet per minute, the indicator would be set about midway between 100 feetper-minute and 165 feet-per-minute graduations.

WARNING: TO CHANGE SPEED, THE SAW MOTOR MUST BE OPERATING.

5. Turn the speed adjustment knob to desired rate setting as determined by material being cut.

Figure 4: Coolant pump switch

Setting Blade Speed

1. The blade speed is controlled by an adjustment mechanism on the right end of the saw. Speed increases when the adjustment knob is turned counterclockwise. Speed decreases when the knob is turned clockwise.

2. A placard on the drive belt guard (shown below) provides recommended speeds for various materials.

3. A speed indicator is provided on the barrel of the adjustment mechanism. The indicator provides speed indications in feet per minute. (The meters per minute values are shown in parenthesis as

following.) The graduations are:

Feet per Minute Meters per Minute

100 (30) 165 (50) 230 (70)

350 (107)

Raising/Lowering Saw Head

1. Lift the saw head using the handle on the far left side of the saw head.

2. To lower the saw head, press the green pushbutton on the right side of the control panel (see figure 3).

3. To adjust the feed rate, adjust the feed rate control valve knob on top of the saw head (see figure 5).

Control Box

Saw Head Lift Handle

Vise Clamping Hand Wheel

Blade Tensioning Hand Wheel

Work Stop Attachment

Blade Guide Supports

Saw Head Feed Rate Control

Head Pivot Point

Saw Head

Speed Control

Variable Speed Adjustment From 100 FPM TO 350 MPM

Recommended Speed for Cutting Various Materials

SPEED/FPM Material To Be Cut

100 Tool Steel, Stainless Steel, Alloy Steel, Phosphor Bronze,

165 Mild Steel, Soft Cast Iron, Medium Hard Brass,

230 Soft Brasses and Bronzes, Hard Aluminum, Plastics 350 Plastics, Soft and Medium Soft Aluminum, Wood,

Figure 5: Controls

Hard Bronze, Hard Cast Iron, Malleable Iron.

Medium Hard Bronze.

Other Light Materials

4. To lower the saw head with power off, pull and turn the red knob (manual override) on the electromagnetic valve (see figure 6).

Red Relief Button

ElectroMagnetic Valve

Figure 6: Lowering head with power off

Controlling the Cut: Hydraulic Feed Control

The weight of the saw arm provides all the force needed to move the saw blade through the workpiece. In fact, if the full weight of the arm is allowed to make the cut, rapid blade wear and poor cutting accuracy will result. A hydraulic feed control is provided that gives the operator a means to control the speed and efficiency of cutting.

The hydraulic cylinder is attached between the

saw base and the saw head. The hydraulic cylinder resists movement of the saw head in the downward direction. However, the hydraulic cylinder offers no resistance when the saw head is raised upward.

The amount of downward force can be controlled

by using the feed rate control valve. When the valve is opened slightly, the saw head will move downward. The further the valve is opened, the faster the saw head will move downward.

The feed control is adjusted by the operator until

the saw is operating efficiently. This is usually determined by observing the chip formation. (See Evaluating Blade Efficiency for more information on cutting efficiency.)

Evaluating Cutting Efficiency

Is the blade cutting efficiently? The best way to determine this is to observe the chips formed by the cutting blade.

If the chip formation is powdery, then the feed rate

is much too light, or the blade is dull.

If the chips formed are curled, but colored — that

is, either blue or straw-colored from heat generated during the cut — then the feed rate is too high.

If the chips are slightly curled and are not colored by heat — the blade is sufficiently sharp and is cutting at its most efficient rate.

Blade Selection

The cut-off saw is provided with a saw blade that is adequate for a variety of cut-off jobs on a variety of common materials. A 4/6 vari tooth bi-metal blade (5674011) and a 6/10 vari tooth bi-metal blade (5674021) are available from JET.

See Setting Blade Speed for the speeds recom- mended for various materials. These selections, while appropriate for many shop cutting needs, do not encompass the wide variety of blades of special configuration (tooth pitch and set) and special alloys for cutting unusual or exotic materials.

A coarse blade could be used for a solid steel bar but a finer tooth blade would be used on a thin-wall tube. In general, the blade choice is determined by the thickness of the material; the thinner the material, the finer the tooth pitch.

A minimum of three teeth should be on the work piece at all times for proper cutting. The blade and workpiece can be damaged if the teeth are so far apart that they straddle the workpiece.

For very high production on cutting of special materials, or to cut hard-to-cut materials such as stainless steel, tool steel, or titanium, you can ask your industrial distributor for more specific blade recommendations. Also, the supplier who provides the workpiece material should be prepared to provide you with very specific instructions regarding the best blade (and coolant or cutting fluid, if needed) for the material and shape supplied.

Blade Break-in Procedures

New blades are very sharp and, therefore, have a tooth geometry which is easily damaged if a careful break-in procedure is not followed. Consult the blade manufacturer’s literature for break-in of specific blades on specific materials. However, the following procedure will be adequate for break-in of JET-supplied blades on lower alloy ferrous materials.

1. Clamp a round section workpiece in the vise. The

workpiece should be 2 inches or larger in diam-

eter.

2. Set the saw on low speed. Start the cut with a

very light feed rate.

3. When the saw has completed 1/3 of the cut,

increase the feed rate slightly and allow the saw to

complete the cut.

4. Keep the same hydraulic cylinder setting and

begin a second cut on the same or similar

workpiece.

5. When the blade has completed about 1/3 of the cut, increase the feed rate. Watch the chip formation until cutting is at its most efficient rate and allow the saw to complete the cut (see Evaluating Blade Efficiency). The blade is now considered ready for regular service.

Work Set-up

Setting Head Angle

3. Loosen hex post to free moveable jaw. Position the moveable jaw so it is parallel to and in contact with the work piece.

4. Using the clamping hand wheel on the worktable, tighten the moveable jaw against the work piece. Then tighten the hex post on the moveable jaw.

1. Move locking lever to the left to unlock swivel-head (refer to Fgure 7).

2. Move swivel-head to left until pointer is set on desired angle (refer to Figure 8).

3. Move locking lever right to lock worktable.

Locking Lever (Move right to loosen)

Angle Scale

Work Table

Pointer

Move table left to set angle

Figure 7: Quick-Acting Swivel-Head Lock

Work Table

Move left to lock

Move table to selected angle

Figure 8: Locking Work Table

Vise Jaw (Fixed)

Vise Jaw (Moveable)

Hex Post

Work Table

Figure 9: Securing the Workpiece

Adjusting the Vise for Angle Cuts

1. Loosen the angle locking screw and the pivot

2. Turn the locking handle on the round, angle-setting

3. Set the workpiece in the vise. Put the front end of

4. Turn clamping hand wheel clockwise until the left

5. After completing the cut, turn the clamping hand

(see figure 9)

screw on the left vise jaw.

block counterclockwise to unlock the block. Slide the block until the pointer on the block is aligned with desired angle (see figure 9). Tighten the locking handle to set the angle.

the workpiece against the corner of the right vise jaw. Put the rear end of the workpiece against the angle-setting block.

vise jaw is parallel with the workpiece. Tighten the pivot screw and angle locking screw on the left vise jaw. Clamp the workpiece in position.

wheel counterclockwise and slide the left jaw away from the workpiece.

Securing Workpiece

1. Set work table to desired angle. Lock in place

with locking handle.

2. Place work piece against fixed jaw (refer to Figure

9).

Installation and Adjustment of Work Stop

The work stop is used to set up the saw for

making multiple cuts of the same length (see figure

10). Install and adjust the work stop as follows:

Stop Post

5. Start the motor and allow the saw to come up to speed.

6. Slowly set the saw down onto the workpiece. Adjust cutting speed with the feed rate control valve.

7. DO NOT DROP THE SAW HEAD OR FORCE THE CUT. Let the weight of the saw head provide the cutting force.

8. The saw will automatically shut off at the end of the cut.

Stop L-Bracket

Locking Lever

"Wing" Screw

Knob

Stop Rod

Figure 10: Work stop

1. Insert the end of the stop rod in the hole in the front right side of the work table.

2. Tighten the Wing-screw to secure the rod in place.

3. Install the stop post in the channel on the back of the stop L-bracket. Install the locking lever in the threaded hole in the stop post. Snug-up the locking lever.

4. Install the locking knob in the hole in the side of the stop L-bracket.

5. Slide the assembled stop L-bracket onto the stop rod. Position the stop post against the work piece and tighten the knob in the stop L-bracket. The stop post can be moved left or right as required to place the stop post against the work piece.

Rounds

Flats/strips

Channels

Squares/rectangles

Hexagonals

Knock off

sharp edge here with

file

Angles

I-Beams

Knock off

sharp edge here with

file

Te es

Figure 11: Placing workpieces in the vise

Starting the Saw

WARNING: NEVER OPERATE THE SAW WITHOUT BLADE COVERS IN PLACE AND SECURED.

CAUTION: MAKE SURE THE BLADE IS NOT IN CONTACT WITH THE WORKPIECE WHEN THE MOTOR IS STARTED. DO NOT DROP THE SAW HEAD ON THE WORKPIECE OR FORCE THE SAW BLADE THROUGH THE WORKPIECE.

1. Raise the saw head. With the saw motor off, pull the red release button on the electro-magnetic valve and check the rate at which the saw head lowers.

2. Raise the saw head. Push in red release button.

3. Clamp the workpiece in the vise. (See figure 11 for examples of workpieces in the vise.)

4. Be sure the blade is not in contact with the workpiece when the motor is started.

Coolant Flow

CAUTION: THE COOLANT PUMP MUST BE SUBMERGED BEFORE OPERATING TO PREVENT DAMAGE TO THE PUMP.

1. The blade guides are fitted with coolant fittings. Coolant is provided to the fittings through interconnecting tubing. The coolant is dispensed directly onto the saw blade.

2. Adjust the coolant flow valves on the top, rear of the saw head as required to provide the desired flow. The flow should be no more than the blade can draw into the workpiece by movement of the blade.

3. The coolant flow can be stopped in two ways:

1) By using the coolant pump switch on the

electrical equipment box, or

2) By closing the coolant flow valves on the top,

rear of the saw head.

Coolant Mixture and Quantity

The general purpose coolant is a mixture of water soluble oil and water. Mix one part of soluble oil (TRIM SOL) to ten parts of water (one quart oil, ten quarts of water). The eleven quarts of coolant is the amount required for the coolant pump to operate properly.

There are numerous coolants on the market that are formulated for special applications. Consult your local distributor for details in the event you have a long range production task, or are required to cut some of the more exotic materials.

Adjustments

The efficient operation of the cut-off saw is dependent upon the condition of the saw blade. If the performance of the saw begins to deteriorate, the first item that you should check is the blade.

If a new blade does not restore the machine’s cutting accuracy and quality, refer to the Troubleshooting section (or the blade manufacturer's guide) for conditions to consider and adjustments that can be made to increase the life of the blade.

To change the blade, refer to Changing Blades in the Maintenance section. To adjust the blade tracking, refer to the following procedures.

Blade Tracking Adjustment

Blade tracking has been tested at the factory. Adjustment is rarely required when the blade is used properly or if the blade is correctly welded. (See figure 12 for location of blade tracking adjustment screws.)

1. Raise the saw head enough to allow the saw motor to operate.

2. Loosen four knobs securing the blade cover. Lift the cover and swing it backward.

3. Remove the blade guard mounted on the left blade guide support.

4. Remove both blade guide bearing brackets.

NOTE: Maintain proper tension at all times using the

blade tensioning mechanism.

5. Loosen the center locking screws in all three hex adjustment screws on the blade tensioning mechanism (see figure 12).

CAUTION: WHILE PERFORMING THE FOLLOWING, KEEP THE BLADE FROM RUBBING EXCESSIVELY ON THE SHOULDER OF THE WHEEL. EXCESSIVE RUBBING WILL DAMAGE THE WHEEL AND/OR THE BLADE.

6. Start the saw. Slowly turn the single hex adjustment screw at the rear of the tracking mechanism to tilt the idler wheel. Do not turn either of the other two adjustment screws. Turn the adjustment screw until the blade is touching the shoulder of the idler wheel.

NOTE: Turning the screw inward causes the blade to move toward the shoulder of the wheel. Turning the screw outward causes the blade to move away from the shoulder.

7. Turn the single hex adjustment screw so the blade starts to move away from the shoulder of the wheel — then immediately turn the single hex adjustment screw in the other direction so the blade stops, then moves slowly toward the shoulder.

WARNING: KEEP FINGERS CLEAR OF THE BLADE AND WHEEL TO AVOID INJURY.

Blade Tracking Hex Adjustment Screws

Single Adjustment Screw

Center Locking Screws

Figure 12: Blade tracking and tensioning

Factory or Field Procedure

8. Turn the single hex adjustment screw to stop the motion of the blade on the wheel as it gets closer

to the wheel shoulder. Put a 6-inch length of

paper between the blade and the wheel as shown in figure 13. The paper should not be cut as it passes between the wheel shoulder and blade.

9. Turn the single hex adjustment screw a small amount. Repeat the insertion of the paper between the wheel shoulder and the blade until the paper is cut in two pieces.

NOTE: You may have to repeat the check with the paper several times before the blade and the shoulder cuts the paper into two pieces. Do not hurry the adjustment. Patience and accuracy here will pay off with better, more accurate, quieter cutting and much longer machine and blade life.

10. When the paper is cut, turn the hex adjustment

screw slightly in the counterclockwise direction.

This assures that the blade is not touching the shoulder of the wheel.

11. Shut off the saw.

12. Hold the hex adjustment screws with a wrench and tighten the center locking screws. Make sure the hex adjustment screws do not move while tightening the center screws.

13. Install the two blade guide bearing brackets. Position the guides so the bearings just touch the blade.

14. Install the left blade guard.

15. Close the saw head cover. Tighten the four knobs.

0.001 inch clearance between the blade and the guide bearings. The bearings will still turn freely with this clearance. If the clearance is incorrect, the blade may track off the drive wheel.

CAUTION: CHECK THE BLADE TO MAKE SURE THE WELDED SECTION IS THE SAME THICKNESS AS THE REST OF THE BLADE. IF THE BLADE IS THICKER AT THE WELD, THE GUIDE BEARINGS MAY BE DAMAGED.

If required, adjust the guide bearings as follows:

1. The inner guide bearing is mounted on a concentric bushing and can not be adjusted.

2. The outer guide bearing (closest to the operator) is mounted on an eccentric bushing and can be adjusted.

3. Hold the bushing with a 3/4-inch wrench and loosen the center locking screw with an Allen wrench (see figure 14).

Put Strip Between Wheel and Blade

Figure 13: Checking blade-to-wheel clearance using paper strips

Blade Guide Bearing Adjustment

Proper adjustment of the blade guide bearings is critical to efficient operation of the cut-off saw. The blade guide bearings are adjusted at the Factory. They should rarely require adjustment. When adjustment is required, adjust immediately. Failure to maintain proper blade adjustment may cause serious blade damage or inaccurate cuts.

It is always better to try a new blade when cutting performance is poor. If performance remains poor after changing the blade, make the necessary adjustments.

If a new blade does not correct the problem, check the blade guides for proper spacing. For most efficient operation and maximum accuracy, provide

Inner Roller

Guide Bracket

Eccentric Bushing

Locking

Blade

Screw

Figure 14: Adjustment of guide bearings

INCORRECT CORRECT

Outer Roller

Blade

Inner Roller

Locking Screw

Figure 15: Blade -to-bearing orientation

4. Position the bearing by turning the bushing. Set the clearance at approximately 0.001 inch. The blade should be in a vertical position between the bearings (see figure 15).

5. Tighten the center locking screw with an Allen wrench while holding the eccentric bushing in position with the 3/4-inch wrench.

6. Use the same procedure to adjust the other guide bearing.

7. When the adjustment is correct, the guide bearings should rotate freely with slight pressure of the finger (with the blade stopped).

8. Adjust blade-edge bearings so they just touch the back edge of the blade (see figure 21).

Test Cutting to Verify Adjustment Accuracy

Test cuts can be used to determine whether or not you have adjusted the blade accurately. Use 2-inch round bar stock to perform these test cuts, as follows:

1. With the bar stock securely clamped in the vise, make a cut through the bar stock. (See figure 16.)

2. Mark the top of the bar stock.

3. Move the bar stock about 1/4-inch past the blade so you can begin a second cut.

4. Rotate the bar stock 180 degrees so the mark you made is now at the bottom of the cut.

5. Make a cut through the bar stock.

6. Use a micrometer to measure the thickness variation of the disk you have cut from the bar stock. Measure at the top and bottom of the disk.

The saw blade can be considered correctly adjusted when the variation measure is no more than 0.012 inch across the face of the disk.

If you do not have a piece of 2-inch bar stock available for a test cut, use a larger diameter test piece rather than a smaller one. The maximum thickness variation on any test piece should be no more than 0.003 inch, per side, per inch of stock diameter.

Adjustment of the Limit Switch

1. The limit switch is provided to shut off the saw

motor when the workpiece is cut through.

2. To set the limit switch, loosen the jam nut on the

limit switch stop (see figure15).

3. Adjust the stop as required and retighten the jam

nut.

Limit Switch

Switch Roller

1. Clamp in vise and mark top of barstock here

5. Measure here...

7. Differences between

New slice

6. ...measure

here

measurements at edges of disc should be less than .003 inches per inch per side of stock diameter

Figure 16: Cutting a test disc

2. Cut off a slice of the bar stock

3. Rotate stock in vise so mark is at bottom

4. Cut off a new slice from the stock

Adjustment Screw

Jam Nut

Figure 15: Limit switch adjustment

Maintenance

Cleaning

1. Clean off any preservative on machine surfaces.

2. After cleaning, coat the machined surfaces of the

cut-off saw with a medium consistency machine

oil. Repeat the oil coating process at least every

six months.

3. Clean up accumulated saw cuttings after use.

Make sure the lead screw is kept free of saw

cuttings and other material that would cause

damage.

4. Clean the chip sludge from the coolant tank. The

frequency should be determined by how often the

saw is used.

Lubrication

Lubricate the following components at the specified frequencies and using the lubricants defined below:

1. Ball bearings: the bearings are lubricated and sealed—periodic lubrication is not required.

2. Blade guide bearing: the bearings are lubricated and sealed—lubrication is not required. Inspect periodically.

3. Idler wheel bushing: the bearings are lubricated and sealed—lubrication is not required. Inspect periodically.

4. Lead screw bearing housing: lubricate with light oil monthly (see exploded figure, page 22).

5. Lead screw: lubricate with light oil monthly (see exploded figure, page 20).

6. Hydraulic cylinder pivot: lubricate with light oil every 6 months (see exploded figure, page 22).

7. Blade tension screw: lubricate with grease every 6 months (see exploded figure, page 25).

8. Blade brush bearing: lubricate with light oil monthly (see exploded figure, page 25).

9. Gear box: check oil once a year.

10. Change coolant on a frequency appropriate to the type of coolant being used. Oil based coolants can sour. Refer to the coolant supplier’s instructions for change frequency.

11. Coolant tank: clean every 6 months or as required.

Changing Blades

WARNING: SHUT OFF ALL ELECTRICAL POWER TO THE MACHINE.

Adjust the bearings on the upper edge of the blade until they just contact the blade (see figure

8. Check the guide bearings and the carbide guides to make sure they are just contacting the sides of the blade.

9. Install the left blade guard making sure there is ample clearance with the blade.

10. Make a test cut to make sure the blade tracks properly during operation. Adjust tracking as required (see Blade Tracking Adjustment).

21).

Changing the Drive Belt

1. Disconnect the electrical power source from the cut-off saw to prevent any possibility of accidental motor start-up.

2. Set the arm at the full horizontal position.

3. Remove the knob on the drive belt cover. Remove the drive belt cover to expose the V-belt and pulleys.

4. Remove two screws, nuts, and washers from back of saw head support. Push on the motor support bracket to pivot the motor upward to loosen the tension on the belt.

5. Remove the worn belt.

6. Put the replacement belt in the pulleys. Allow the motor to pivot downward.

7. Install the two screws, nuts, and washers in back of saw head support and through the motor support bracket.

8. Install the drive belt cover. Install and tighten the knob on the drive belt cover.

1. Loosen four knobs securing the blade cover. Lift the cover and swing it backward.

2. Remove the blade guard mounted to the left blade guide support.

WARNING: ALWAYS WEAR LEATHER GLOVES WHEN HANDLING SAW BLADE TO AVOID INJURY FROM THE SAW TEETH.

3. Turn the blade tensioning hand wheel clockwise to relieve tension on the blade. Loosen the blade enough to remove the blade from the idler and drive wheels. Remove the blade from between the blade guides.

4. Install the new blade between the blade guide bearings and the carbide blade guides. Install the blade over the drive and idler wheels.

5. Turn the blade tensioning hand wheel counterclockwise to tighten the blade. Tighten the blade until the blade tension indicator reads 2000 lbs.

6. Operate the saw at low speed and observe the tracking of the blade. If tracking needs to be adjusted, refer to Blade Tracking Adjustment.

Replacing the Drive Motor

1. Disconnect the motor from all electrical power. Unplug the motor if it is plugged into a socket. Shut off the power to the branch and remove the connection to the junction box if the motor is hard wired to the branch.

2. Remove the drive belt from the drive motor pulley (see Changing the Drive Belt).

3. Remove motor pulley.

4. Open the motor junction box and disconnect the power cord wires from their terminals.

5. Remove the nuts, washers and bolts that secure the motor to the mounting plate.

6. Installation of a new motor is a reversal of the above steps.

Adjusting the Counterbalance Spring

The counterbalance spring is located at the right, rear of the saw head. The counterbalance spring is used to adjust the amount of down force the saw head puts

on the workpiece when the feed rate control valve is

fully open.

1. Raise the saw arm to its full upright position and lock it in position (refer to Figure 18).

Counterblance Spring

35¢X

40¢X

45¢X

Hex Nut (2) (to adjust tension)

Figure 18: Counterblance Spring Adjustment

2. To adjust the tension on the spring, loosen the two nuts on the threaded rod of the spring pivot post. Adjust the tension as required.

3. Tighten the two nuts against the pivot post.

4. The saw can now be returned to service.

5. Inspect bearings for damage and smooth operation, Replace if faulty.

6. Install the bearing in the idler wheel. Install the idler wheel on the idler shaft.

7. Install the screw, spring washer and washer in the idler shaft.

8. Install the blade (see Changing blades).

Adjusting the Blade Guides

The cut-off saw has adjustable blade guide supports (see figure 19). The blade guide supports allow you to

25¢

30¢X

set the blade guides for varying widths of workpieces. To make accurate cuts and prolong blade life, the blade guide supports should be set to just clear the workpiece to be cut.

Blade Guide Supports

Replacing the Drive Wheel

1. Remove the blade (see Changing Blades).

2. Remove the screw, spring washer, and washer from the speed reducer shaft.

3. Pull the wheel from the speed reducer shaft. Remove the drive key from the speed reducer shaft.

4. Inspection: Examine drive edge and shoulder of the wheel for damage. Replace the wheel if damaged.

5. Install the key in the keyway in the speed reducer shaft. Align the keyway in the wheel with the key in the speed reducer shaft. Reinstall the wheel on the speed reducer shaft.

6. Install the screw, spring washer and washer in the end of the speed reducer shaft.

7. Install the blade (see Changing Blades).

Replacing Idler Wheel or Idler Bearing

1. Remove the saw blade (see Changing Blades).

2. Remove the screw, spring washer, and washer from the idler shaft.

3. Remove the idler wheel. Remove the bearing from the idler wheel.

4. Inspection: Examine the drive edge and shoulder of the idler wheel for damage. Replace the wheel if damaged.

Figure 19: Blade guide supports

1. Loosen the knob on the blade guide support and slide the guide left or right as required. Repeat for the other blade guide.

2. Set the blade guide supports as required to accommodate the width/diameter of the workpiece. The blade guides should be positioned so the guides do not contact the workpiece as the saw head moves downward through the workpiece.

Replacement of Carbide Blade Guide

Concentric Bushing

Blade Guide Bearings

Carbide Guides (2)

Cap Screw (Typical)

Figure 20: Carbide blade guides and guide bearings

(see figure 20)

Cap Screw (Typical)

Eccentric Bushing

1. Remove the cap screw and remove the carbide guide. Discard the carbide guide.

2. Install the replacement carbide guide on the guide bearing support. Install the cap screw. Set the

guide so it just contacts the side of the saw blade.

3. Using a machinist's square, check squareness of the blade to the table.

Replacement of Guide Bearings

1. Remove the cap screw from the bearing being replaced. Separate the bushing and cap screw from the bearing. Discard the bearing.

NOTE: There is a light press fit between the bearing and the bushing.

2. Install bushing in replacement bearing. Install cap screw through bushing and into guide support.

3. If the bearing being replaced is on an eccentric bushing, install the bearing on the operator side of the blade.

4. Turn the eccentric bushing in the guide support until the bearing contacts the blade.

(see figure 20)

Replacement of the Wire Brush

1. Loosen four knobs securing the blade cover. Lift the cover and swing it backward.

2. Remove the attaching screw, spring washer and washer. Remove and discard the brush (see figure 22).

3. Install replacement brush and secure with screw, spring washer and washer.

4. Close the blade cover and secure with four knobs.

Wire Brush

Screw and Washers

Replacement of Blade Edge Bearings

1. Remove the capscrew from the blade edge bearing being replaced and discard the bearing. Be careful not to lose the spring washer that separates the bearing from the floating block (see figure

21).

2. Insert the capscrew into the new bearing. Replace the spring washer onto the capscrew and re-install into the floating block.

3. If re-adjustment is necessary, loosen the pivot capscrew and move the floating block so that the blade edge is close to the guide support, but cannot touch the bottom surface of it when the sawblade is cutting a workpiece.

Adjustment Cap Screw

Floating Block

Cap Screw

Guide Support

Figure 22: Wire brush

Machine Setup

The saw delivered to you has been adjusted at the factory. A number of test pieces have been cut using the saw to verify the accuracy of cutting. Therefore, the only setup operations required before releasing the saw for service are spotting the saw and establishing the electrical connections to the motor.

Uncrating and Spotting

Spot the saw where it makes the most sense for the operations you will probably be doing. If you are going to be doing cut-off work on very long pieces of stock, allow plenty of room for the stock, and the infeed and outfeed supports. Remove the saw from the shipping skid and discard any hold-down devices that were used to secure the saw to the skid.

Blade Edge Bearing

Figure 21: Blade edge bearing replacement

Electrical

Observe the following when connecting to the power source. (Refer to the wiring diagrams in Figures 23 - 26.)

WARNING: JET RECOMMENDS THAT ANY HARD WIRING OF THE SAW TO A BRANCH, OR ANY CHANGE OF VOLTAGE SUPPLIED TO THE MOTOR BE PERFORMED BY A LICENSED ELECTRICIAN.

1. Make sure the saw is disconnected from the power source, or that the fuses have been removed or breakers tripped in the circuit in which the saw will be connected. Make sure you put a warning placard on the fuse or circuit breaker to prevent accidental electrical shock.

2. If you are installing the motor power cord into a receptacle, make sure to use the appropriate plug.

3. If you are using hard-wired connections to a junction box, connect the wires in the box, and close the box.

4. Install the fuses or reset the breaker.

5. The saw is now ready for service.

Figure 23: Model J-7020M cut-off saw wiring diagram

Figure 24: Connection diagram for 1ph motor

115V - To reverse motor rotation switch terminal 5 and 6.

220V - To reverse motor rotation hook terminal 6 to 1.

Figure 25: Model 7040M cut-off saw wiring diagram

Figure 26: Connection diagram for 3ph motor

Troubleshooting

Fault

Excessive blade breakage

Premature blade dulling

Probable cause

1. Material loose in vise.

2. Incorrect speed or feed.

3. Teeth too coarse for material.

4. Incorrect blade tension.

5. Saw blade is in contact with workpiece before the saw is started.

6. Blade rubs on the wheel flange.

7. Misaligned guides.

8. Cracking at weld.

1. Blade teeth too coarse.

2. Blade speed too high.

3. Inadequate feed pressure.

4. Hard spots in workpiece or scale on/in workpiece.

5. Work hardening of material (especially stainless steel).

6. Insufficient blade tension.

7. Operating saw without pressure on workpiece.

Suggested remedy

1. Clamp work securely.

2. Check Machinist’s Handbook for speed/feed appropriate for the material being cut.

3. Check Machinist’s Handbook for recommended blade type.

4. Adjust blade tension to the point where the blade just does not slip on the wheel.

5. Start the motor before placing the saw on the workpiece.

6. Adjust blade tracking.

7. Adjust guides.

8. Longer annealing cycle.

1. Use a finer tooth blade.

2. Try a lower blade speed.

3. Decrease spring tension.

4. Increase feed pressure (hard spots). Reduce speed, increase feed pressure (scale).

5. Increase feed pressure by reducing spring tension.

6. Increase tension to proper level.

7. Do not run blade at idle in/on material.

Bad cuts (out-of-square)

Bad cuts (rough)

Workpiece not square with blade.

2. Feed pressure too fast.

3. Guide bearings not adjusted properly.

4. Inadequate blade tension.

5. Span between the two blade guides too wide.

6. Dull blade.

7. Incorrect blade speed.

8. Blade guide assembly is loose.

9. Blade guide bearing assembly loose.

10. Blade track too far away from wheel flanges.

11. Guide bearing worn.

1. Blade speed too high for feed pressure.

2. Blade is too coarse.

NOTE: Troubleshooting continued on next page

1. Adjust vise so it is square with the blade. (Always clamp work tightly in vise.)

2. Decrease pressure.

3. Adjust guide bearing clearance to

0.001 inch (0.002 inch maximum).

4. Gradually increase blade tension.

5. Move blade guide bar closer to work.

6. Replace blade.

7. Check blade speed (see Figure 3).

8. Tighten blade guide assembly.

9. Tighten blade guide bearing assembly.

10. Adjust blade tracking.

11. Replace worn bearing.

1. Reduce blade speed and feed pressure.

2. Replace with finer blade.

Blade is twisting

1. Blade is binding in the cut.

2. Blade tension too high.

1. Decrease feed pressure.

2. Decrease tension on blade

Unusual wear on side/back of blade

Teeth missing/ripped from blade

Motor running too hot

1. Blade guides worn

2. Blade guide bearings not adjusted.

3. Blade guide bearing bracket is loose.

1. Blade tooth pitch too coarse for workpiece.

2. Feed too slow; feed too fast.

3. Workpiece vibrating.

4. Gullets loading up with chips.

1. Blade tension too high.

2. Drive belt tension too high.

3. Blade too coarse for workpiece (especially with tubular stock).

4. Blade too fine for workpiece (especially with heavier, soft material).

5. Speed reducer gears require lubrication.

1. Replace blade guides.

2. Adjust blade guide bearings.

3. Tighten blade guide bearing bracket.

1. Use blade with finer tooth pitch.

2. Increase feed pressure and/or blade speed.

3. Clamp workpiece securely.

4a. Use blade with a coarse tooth

pitch—reduce feed pressure.

4b. Brush blade to remove chips.

1. Reduce tension on blade.

2. Reduce tension on drive belt.

3. Use blade with fine tooth pitch.

4. Use blade with coarse tooth pitch.

5. Check speed reducer.

No coolant flow

Excessive speed reducer noise/ vibration

1. Pump motor is burned out.

2. Screen/filter on pump is clogged.

3. Impeller is loose.

4. Coolant level too low.

1. V-belt is too tight.

2. Countering spring not tensioned properly.

1. Replace pump.

2. Clean screen/filter.

3. Tighten impeller.

4. Add coolant to reservoir.

1. Reset V-belt tension.

2. Increase spring tension.

Replacement Parts

This section provides exploded view illustrations that show the replacement parts for the 10-inch x 16-inch CutOff Saw. Also provided are parts listings that provide part number and description. The item numbers shown on the illustration relate to the item number in the facing parts listing.

Order replacement parts from:

WMH TOOL GROUP, Inc.

427 New Sanford Road LaVergne, Tennessee 30786 Ph.: 800-274-6848

Identify the replacement part by the part number shown in the parts listing. Be sure to include the model number and serial number of your machine when ordering replacement parts to assure that you will receive the correct part.

Exploded View - Model J-7020M/J-7040M Miter Cut-off Saw Base

Parts List - Model J-7020M/J-7040M Miter Cut-off Saw Base

ITEM PART NO. NO. DESCRIPTION QTY

1 J-5507591 Base, Machine 1 1-1 5512197 Plug, Drain (3/8in, PT) 2 5507592 Screw, Cap, 12 x 70 4 3 5507593 Nut, Hex, M12 4 4 Pump, Coolant 1

J-5712281 115/220V, 1 Phase

J-5712921A 220/440V, 3 Phase * 5512101 Filter Screen w/Screw 1 5 5507595 Screw, Slotted, M6 x 16 4 5-1 5507607 Flat Washer, M12 4 6 5507596 Fitting, Hose 1 7 5507597 Clamp, Hose 1 8 5712331 Hose 5/16 1 9 5507599 Gauge, Coolant 1 10 5507600 Bolt, Hex, M10 x 30 2 10-1 5507599-1 Washer, Cotton, M10 2 10-2 TS-1540071 Nut Hex M10 2 10-3 5507613 Flat Washer, M10 2 11 5712351 Bracket, Pump, Coolant 1 12 5507602 Cover, Panel 1 13 5507603 Screw, Pan Head, 12

1/4" x 3/8' 14 J-5507604 Tray, Drip 1 15 5507605 Bolt, Hex, M8 x 16 2 15-1 5507637 Washer, Lock, M8 2 15-2 5507668 Flat Washer, M8 2 16 5507606 Bolt, Hex, M12 x 30 4 17 5507607 Washer, Flat, M12 4 18 5512701 Bolt, Hex M8 x 16 1 19 5507608 Washer, Flat 1 20 5507609 Bracket, Turning Slide 1 20-1 5516251 Screw, Set, M8 x 10 4 21 5507610 Bracket, Center Fixed 1 21-1 TS-1492031 Bolt, Hex, M12 x 35 3 21-2 5516256 Washer,Lock, M12 3 22 5507611 Bearing, Thrust 1 23 J-5507612 Slide, Turning, Right 1 23-1 5516251 Screw, Set, M8 x10 12 24 5507613 Washer, Flat, M10 2 25 5507614 Screw, Cap, M10 x 40 3 25-1 5516255 Washer, Lock, M10 3 26 5507615 Screw, Cap, M6 x 20 2 27 5512702 Bolt, Hex 1 27-1 5507619 Nut, Hex, M10 1 28 5507616 Bracket 1 29 5507613 Washer, Flat, M10 2 30 5507614 Screw, Cap, M10 x 40 2 30-1 5516255 Washer, Lock, M10 3 31 5512705 Nut, Sliding 2 32 5507618 Screw, Cap, M6 x30 2 32-1 5516257 Washer, Lock, M6 2 33 5512706 Bracket 1 34 5507619 Nut, Hex, M10 1 35 5507620 Bolt, Hex, M10 x 25 1 36 5507621 Screw, Set, M8 x 16 2 37 5512707 Bracket, Mounting 1 38 TS-149105 Bolt, Hex, M10 x 35 2 38-1 5516255 Washer, Lock, M10 2 38-2 5507613 Flat Washer, M10 2 39 5713111 Knob, Lock 1

ITEM PART NO. NO. DESCRIPTION QTY

40 5712441 Handle, Lock 1 41 5712421 Work Stop Bracket 1 42 5712451 Stop, Work 1 43 5712431 Rod, Work Stop 1 44 J-5507628 Support 1 44-1 TS-1482061 Screw, Cap, (M6 x 30) 1 44-2 5516257 Washer, Lock, M6 1 44-3 5516253 Washer, M6 1 45 5507629 Screw, Set 1 46 5507630 Handle, Adjustable 2 47 5507631 Pin, Cylinder 1 48 5507632 C-Ring, S-20 1 49 5507633 C-Ring, S-25 2 50 J-5507634 Bed 1 50-1 TS-1491041 Bolt, Hex, M10 x 30 1 50-2 5507619 Nut, Hex, M10 1 51 5712471 Hand Wheel Assembly 1 51-1 TS-0051011 Screw, Set, 5/16" x 1/2" 1 52 5507636 Bolt, Hex, M8 x 30 2 52-1 5507668 Flat Washer, M8 2 53 5507637 Washer, Lock, M8 2 54 5712481 Lead Screw Bracket 1 55 5712511 Vice Lead Screw 1 55-1 Key, 5 x 5 x 20mm 1 56 5712521 Lead Screw Bracket 1 57 5712531 Nut, Acme 1 58 5712541 Acme Nut Button 1 59 5712551 Acme Nut Retainer 2 60 5712561 Screw Pn Hd PhlpsM5 x 8 1 70 5507646 Panel, Electrical, Access 1 71 Overload 1

5507542 115V, 1-Phase 5713031 220V, 1-Phase 5512660 220V, 3-Phase

5712661 440V, 3-Phase 71A 5508409 Relay, 115/220V, NC 1 72 Motor Contactor 2

5713041 115/220V, 1 Phase

5713001 220/440V, 3 Phase 73 5713051 Transformer,1PH/3PH 1 74 5713061 Strip, Terminal 1 75 5507651 Washer, Flat, M16 2 76 5512708 Handle 1 77 5712571 Bearing, Needle 2 78 5507653 Screw, Cap, M6 x 12 2 78-1 5516257 Washer, Lock, M6 2 79 5507654 Plate, Guide 1 80 5507655 Spring, Torsion 1 81 5712591 Shaft, Pivot 1 82 5507607 Washer, Flat, M12 2 83 5507658 Fitting, Brass 2 85 5507660 Bracket, Pivot 1 86 5507661 Nut, Hex, M12 1 87 5507607 Washer, Flat, M12 1 88 5507662 Bolt, Hex, M12 x 40 1 89 5507663 Shaft, Torsion Spring 1 90 5507664 C-Ring, S-22 1 91 5507665 Bolt, Cap, M8 x 25 1 91-1 5507637 Washer, Lock, M8 2 91-2 5507668 Flat Washer, M8 2

* Not shown in exploded view.

Parts List - Model J-7020M/J-7040M Miter Cut-off Saw Base

ITEM PART NO. NO. DESCRIPTION QTY

92 5507666 Plate, Motor Tilt 1 92-1 TS-1490041 Bolt, Hex, M8 x 25 1 93 5507667 Plate, Limit Switch 1 94 5507668 Washer, Flat, M8 2 95 5507669 Bolt, Hex, M8 x 10 2 95-1 5507637 Washer, Lock, M8 2 96 TS-1482011 Bolt, Hex, M6 x 10 4 97 5712741 Switch, Limit 1 98 5507671 Plate 2 99 5507607 Washer, Flat, M12 2 100 5512711 Screw, Cap, M12 x 50 2 101 5711091 Nut, Hex, 1/2 1 102 5507674 Bracket, Spring 1 103 5512712 Screw, Cap, M8 x 30 2 103-1 5507668 Flat Washer, M8 2 103-2 5507637 Washer, Lock, M8 2 104 5711091 Nut, Hex, 1/2 1 105 5507675 C-Bolt, Adjustable 1 106 5507676 Spring 1 107 5507677 Vise, Left Jaw 1 108 5512713 Bolt, Hex, M12 x 35 1 109 5512714 Screw, Clamping 1 110 5507678 Washer, Lock, M12 1 111 5507679 Pin, Pivot 1 112 5507680 Vise, Fixed Jaw 1 113 5512715 Bolt, Hex, M12 x 40 1 113-1 5507607 Flat Washer, M12 3 114 5507678 Washer, Lock, M12 5 115 5713231 Swivel Bushing 1 115-1 C-Ring, S-32 1 116 5507682 Screw, Cap 2 117 5507683 Box, Stationary 1 117-1 TS-1490021 Bolt, Hex, M8 x 16 4 117-2 5507637 Washer, Lock, M8 4 117-3 5507668 Flat Washer, M8 4 118 5713271 Screw, Cap, 1/4 x 3/4 2 119 J-5713261 Column, Control 1 120 5713281 Swivel 1 120-1 TS-0050021 Screw, Cap, 1/4" x 5/8" 1 120-2 5519510 Nut, Hex, 1/4" 1 121 5507686 Cylinder, Hydraulic 1 122 5507687 Washer, Lock, M10 3 123 5512718 Bolt, Hex, M10 x 30 3 124 J-5507688 Plate, Hydraulic Mtg. 1 125 5507689 Pin, Cotter 1 126 J-5713291 Box, Control 1 127 5713311 Panel, Control 1 128 5713321 Screw,Slotted, 3/16 x 1/4 6 129 5713331 Lamp, Electric Pwr on 1 130 5713341 Switch, Start 1 131 5713351 Switch, Stop 1 132 5713361 Switch, Down 1 133 5516855 Switch, Pump, Coolant 1 134 Panel, Elect., Complete 1

5514613 3-Phase

5514616 1-Phase 135 5713371 E-M Valve Complete 1 263 Cover, Box 1

ITEM PART NO. NO. DESCRIPTION QTY

263-1 Screw, Pan Head, 4

3/16" x 1/4" 264 Base, Box 1 265 J-5521930 Sliding,Turn, Left 1 265-1 Scale, Angle 1 265-2 Screw, Cap, M10 x 25 1 266 Strain Relief 1 267 Ring, Rubber 1 268 Ring, Rubber 1 269 5519503 Fuse, 1A 3 270 5519502 Bracket, Fuse 3 271 Bushing, 9mm 1 272 Bushing, 3mm 1 273 5516856 Panel, Access 1 * 5512787 Kit, Piston/Seal 1 * 5713371A E-M Valve & Coil 1

* Not shown in exploded view.

Exploded View - Model J-7020M/J-7040M Miter Cut-off Saw Head

Parts List - Model J-7020M/J-7040M Miter Cut-off Saw Head

ITEM PART NO. NO. DESCRIPTION QTY

145 5713381 Screw, 1/4 x 3/8 2 146 J-5507697 Cover, Blade Wheel 1 146-1 5518109 Label, JET Logo 1 146-2 5519511 Label, Blade Size 1 146-3 5519513 Label, Glasses 1 146-4 5519512 Label, Warning 1 147 5713411 Guard, Wire Brush 1 147-1 5519514 Label, Saw 1 148 5713421 Handle 2 149 5713431 Washer, 1/2" 1 150 J-5713831 Wheel, Drive 1 150-1 Bushing, 4mm 1 151 Blade, Bi-Metal 1

5674011 4/6 Vari Tooth

5674021 6/10 Vari Tooth 152 5713461 Hose 1 152-1 5519515 Clamp, Hose 1 153 5713471 Bolt, 3/8 x 1-1/4 4 154 5713481 Washer, Spring, 3/8 4 155 5713491 Bolt, 1/2 x 1-1/4 4 156 5713511 Bolt, 5/16 x 1/2 2 157 5713521 Screw, 1/4 x 5/8 4 157-1 5713661 Washer, 1/4 4 158 J-5507709 Box, Blade Wheel 1 158-1 Label, ID 1 158-2 5519672 Label, Tension 1 158-3 5519696 Stopper, Arm 1 158-4 5711091 Nut, Hex, 1/2" 1 159 5713541 Seat, Support Bracket 1 159-1 TS-0070051 Bolt, Hex, 1/2" x 2" 1 159-2 5711091 Nut, Hex, 1/2" 1 160 J-5507711 Gearbox Assembly 1 160-1 5519675 Key, 7 x 7 x 40 1 161 5513734 Key, 7 x 7 x 65 1 162 J-5507713 Cover, Speed Change 1 162-1 5510677 Label, Speed Chart 1 162-2 5519676 Knob 1 162-3 5714041 Washer, 3/8" 1 163 5713581 Pulley, Gearbox 1 164 5713591 Belt 1 165 5713611 Pulley, Motor 1 166 J-5507717 Plate, Speed Change 1 166-1 Bolt, Hex, M8 x16 2 166-2 5507637 Washer, Lock, M8 2 166-3 5507668 Flat Washer, M8 1 167 5507718 Plate, Motor Mount 1 168 5713771 Washer, 5/16 2 169 5713661 Washer, 1/4 1 170 5713651 Washer Lock 1/4 2 171 5713661 Washer, 1/4 2 172 5714291 Valve, Relief 1 173 5628371 Washer, Spring, 1/2 4 174 5713691 Washer, Black, 5/16 4 175 5713711 Screw, Cap, 3/8 x 1 2 176 5713721 Screw, Cap, 5/16 x 5/8 4 177 Motor 1

J-5713731M Model 7020, 1HP, 1P

J-5713732M Model 7040, 2HP, 3P 177-1 Label, Motor 1

5519682M Model 7020, 1HP, 1P

ITEM PART NO. NO. DESCRIPTION QTY

5519683M Model 7040, 2HP, 3P 177-2 TS-1490081 Bolt, Hex, M8 x 45 4 177-3 5507637 Washer, Lock, M8 4 177-4 5507668 Washer, M8 8 177-5 5516239 Nut, Hex, M8 4 178 5713741 Bolt, 1/2 x 3/4 1 180 5513733 Key, 7 x 7 x 40 1 181 5713761 Washer, 1/2" I.D. 1 182 5713771 Washer, 5/16 2 183 5713671 Screw, Slotted, 1/4 x 3/8 6 184 5713781 Screw, Cap, M16 x 30 3 185 5713791 Bolt, 1/2 x 3/4 1 186 5713811 Washer, 1/2 1 187 BB-6205Z Bearing 6205Z 2 188 J-5713441 Wheel, Idler 1 189 J-5713841 Guard, Blade 1 189-1 TS-1490021 Bolt, Hex, M8 x16 1 189-2 5507637 Washer, Lock, M8 1 189-3 5507668 Washer, M8 1 190 5713851 Left Blade Guide Brkt. 1 190A 5713851A Right Blade Guide Brkt. 1 190-1 Screw, Cap, 1/2" x 3/8" 4 190-2 5628371 Washer, Lock, 1/2" 4 190-3 5507607 Washer, 1/2" 4 190-4 5519684 Tube, Copper 2 190-5 TS-0270051 Srcrew, Set, 5/16" x 1/2" 6 191 5717138 Assy., Eccentric Shaft 2 191A 5717142 Assy., Center Shaft 2 192 5713871 Guide, Blade, Tun. Carb. 4 192-1 5713661 Washer, 1/4" 8 192-2 5713651 Washer, Lock, 1/4" 4 192-3 5519508 Screw, Cap, 1/4" x 1" 4 193 5713881 Block, Elevating 2 194 5713891 Block, Active 2 195 5713911 Screw, Cap, 1/4 x 5/16 2 196 5632831 Bearing, 608ZZ 4 197 5713931 Washer, Spring, 5/16 4 198 5713941 Screw, Cap, 5/16 x1-3/4 4 199 5713951 Washer,Lock,Black,5/16 4 200 J-5713961 Guide Support 2 200-1 5518423 Label, Blade Orientation 2 201 5713971 Scale, Angle 1 202 5713981 Screw, Flat, M5 x 0.8 4 203 5713991 Guide Support Mount 1 204 J-5714011 Left Bracket support 1 204-1 5712561 Screw, Pan Head, M5 x 8 4 204-2 5519694 Clamp, Rubber 4 205 5714021 Screw, 1/2 x 1 4 205-1 5507607 Washer, 1/2" 2 206 5714031 Knob 2 207 5714041 Washer, 3/8 2 208 5714051 Block, Locking 2 209 5714061 Screw, 5/16 x 1/2 4 210 J-5714071 Right Bracket support 1 211 5714161 Bolt, 1/4 x 1/2 1 212 5713651 Washer, Spring, 1/4 1 213 5714111 Brush, Wire 1 214 5714121 Seat, Steel Brush 1 215 5713771 Washer, 5/16 2 216 5714141 Clamp, Hose 2

Parts List - Model J-7020M/J-7040M Miter Cut-off Saw Head

ITEM PART NO. NO. DESCRIPTION QTY

217 5713651 Washer, Spring, 1/4 4 218 5714161 Bolt, 1/4 x 1/2 4 219 5628371 Washer, Spring, 1/2 4 220 5714181 Gib 2 221 5714191 Screw, Cap, 1/2 x 3/4 1 222 5714211 Screw, Cap, M8 x 20 4 222-1 5507668 Washer, M8 4 224 5714221 Knob 4 225 5714231 Nozzle, Flexible 1 225-1 5507607 Clamp, Hose 4 226 5714241 Shaft, Blade Wheel 1 226-1 5519691 Scale, Tension 1 226-2 5519690 Screw, Pan Head, 2

M6 x 12 227 5714251 Threaded Nut 1 228 5714261 Screw, Set, 5/16 x 1/2 1 229 5714271 Bracket, Slide 1 230 5714281 Washer 1 231 5507788 Shaft, Support 1 231-1 C-Ring, S-19 1 232 J-5507785 Bracket, Motor Mount 1 232-1 TS-1492021 Bolt, Hex, M12 x 30 2 233 5507790 Bearing (51104NJK) 1 234 5507791 Washer 1 235 5508005 Nut, Hex 1 238 5714331 Handle, Blade Cover 1 239 5711091 Nut, Hex, 1/2 1 240 5714351 Washer, 3/4 1 241 5714361 Washer, Special Spring 13 242 5714371 Wheel, Hand 1 243 J-5714381 Bracket, Slide 1 244 5714391 Shaft, Tension 1 244-1 5519692 Nut, Hex 1 244-2 5519693 Screw, Set, M6 x8 1 245 5714411 Key, Square, 5MM 1 246 5714421 Bolt, 3/8 x 2-1/2 3 246-1 5713481 Washer, Lock, M10 3 247 J-5714431 Seat, Oil Pressure 1 247-1 TS-1490021 Bolt, Hex, M8 x 16 2 247-2 5507637 Washer, Lock, M8 2 247-3 5507668 Washer, M8 2 248 J-5714441 Plate, Cover 1 249 5714451 Screw, Slotted, 5/16x5/8 2 250 5714461 Panel, Control 1 251 5714471 Screw, Slotted, 1/4x3/8 2 252 5713941 Screw, Cap, 5/16x1-3/4 4 253 5712881 Washer, Lock, 1/2 4 254 5517141 Bushing, Eccentric 2 255 5517140 Bushing, Center 2 256 5713861 Bearing, Ball, 6201ZZ 8 257 5713761 Washer, 1/2 4 258 5519492 Rivet, 2mm 9 259 TS-1525031 Screw, Set, M10 x 16 2 260 5519679 Bracket 1 260-1 5713381 Bolt, Hex, 1/4" x 3/8" 2 260-2 5713651 Washer, Lock, 1/4" 2 260-3 5713661 Washer, 1/4" 2 261 5519678 Rod 1

ITEM PART NO. NO. DESCRIPTION QTY

261-1 5714041 Washer, 3/8" 1 261-2 5713081 Nut, Hex, 3/8" 1 262 5714311 Connection, Head 1

WMH TOOL GROUP, Inc.

427 New Sanford Road

LaVergne, Tennessee 30786

Ph.: 800-274-6848

www.wmhtoolgroup.com

Jet J-7020M, J-7040M Operating Instructions And Parts Manual

Specifications and Main Features

Frequently Asked Questions

User Manual