JET 414453, 414461 User Manual

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Operating Instructions and Parts Manual

5-inch x 8-inch Horizontal Band Saw

Models: J-3130, J-3230

JET

Model J-3130 shown

1.0 Warranty and Service

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

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

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

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

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

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

Who is Covered

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

What is Co vered

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

Warranty Limitations

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

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

explain and assist with any additional action needed. JET has Authorized Service Centers located throughout the United States. For the name of an Authorized Service Center in your area call 1-800-274-6846 or use the Service Center Locator on the JET website.

More Informat io n

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

How S tate Law A pplies

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

Limitations on This Warranty

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

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

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

Product Listing with Warranty Period

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

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

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

2.0 Table of contents

Section Page

1.0 Warranty and Service ..................................................................................................................................... 2

2.0 Table of contents ............................................................................................................................................ 3

3.0 Safety Warnings ............................................................................................................................................. 4

4.0 About this machine and manual ..................................................................................................................... 6

5.0 Features and Nomenclature ........................................................................................................................... 6

6.0 Specifications ................................................................................................................................................. 7

7.0 Set-up and assembly ..................................................................................................................................... 8

7.1 Unpacking and cleanup .............................................................................................................................. 8

7.2 Assembling the band saw .......................................................................................................................... 8

7.3 Installing coolant kit .................................................................................................................................... 9

8.0 Electrical connections .................................................................................................................................... 9

8.1 Wiring diagram ......................................................................................................................................... 10

9.0 Operating Instructions .................................................................................................................................. 10

9.1 Clamping materials in the vise ................................................................................................................. 10

9.2 Right angle cutting .................................................................................................................................... 10

9.3 Angle cutting ............................................................................................................................................. 10

9.4 Clamping methods ................................................................................................................................... 11

9.5 Using the stock stop ................................................................................................................................. 11

9.6 Blade selection ......................................................................................................................................... 11

9.7 Changing blade speeds ............................................................................................................................ 12

9.8 Evaluating cutting efficiency ..................................................................................................................... 12

9.9 Cutting procedure ..................................................................................................................................... 12

9.10 Using the hydraulic feed control ............................................................................................................. 12

9.11 Blade break-in procedures ..................................................................................................................... 13

9.12 Changing blades .................................................................................................................................... 13

10.0 Maintenance ............................................................................................................................................... 14

10.1 Motor replacement ................................................................................................................................. 14

10.2 Adjusting guide bearings ........................................................................................................................ 14

10.3 Blade tracking ......................................................................................................................................... 14

10.4 Replacing guide bearings ....................................................................................................................... 15

10.5 Adjusting back-up bearings .................................................................................................................... 15

10.6 Adjusting the arm stop adjustment bolt .................................................................................................. 15

10.7 Adjusting motor switch actuator ............................................................................................................. 15

10.8 Replacing a back up bearing .................................................................................................................. 16

10.9 Adjusting the bearing guide seats for blade vertical ............................................................................... 16

10.10 Test cutting to verify adjustment accuracy ........................................................................................... 16

11.0 Maintenance Chart ..................................................................................................................................... 17

12.0 Troubleshooting the J-3130 and J-3230 .................................................................................................... 18

13.0 Replacement Parts ..................................................................................................................................... 21

13.1.1 Lower Saw Head – Exploded View ..................................................................................................... 22

13.1.2 Lower Saw Head – Parts List .............................................................................................................. 23

13.2.1 Upper Saw Head – Exploded View ..................................................................................................... 24

13.2.2 Upper Saw Head – Parts List .............................................................................................................. 25

13.3.1 Saw Base – Exploded View ................................................................................................................ 26

13.3.2 Saw Base – Parts List ......................................................................................................................... 27

13.4.1 Stand and Coolant System – Exploded View ...................................................................................... 28

13.4.2 Stand and Coolant System – Parts List ............................................................................................... 29

General Machinery Warnings

3.0 Safety Warnings

General Cautions

- Misuse of this machine can cause serious injury.

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

- Read, understand and follow the instructions in the operator’s and parts manual which was shipped with your machine.

When setting up the machine:

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

- Always be sure the machine is securely anchored to the floor or the work bench.

- Al ways keep the machine guards in place.

- Always put the start switch in the “OFF” position before plugging in the machine.

When using the machine:

- Never operate the machine with safety guards missing.

- Always wear safety glasses with side shields (See ANSI Z87.1)

- Never wear loose clothing or jewelry.

- Never overreach; you may slip and fall into the machine.

- Never leave the machine running while unattended.

- Always shut the mac hine off wh en not in use.

When servicing the machine:

- Always unplug the machine from the electrical power before servicing.

- Always follow the instructions in the operators and parts manual when changing accessory tools or parts.

- Never modify the machine without consulting Walter Meier (Manufacturing) Inc.

You — the stationary power tool user — hold the key to safe ty.

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

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 w ear which does not comply with AN SI Z8 7.1 specifications could result in severe injury from the breakage of the eye protection.

2. Wear proper apparel. No loose clothing or jewelry which can get caught in moving parts. Rubber soled, nonslip, footwear is recommended for best footing.

3. Do not overreach. Failure to maintain a 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 the guards removed.

5. Avoid dangerous working environments. Do not use stationary machine tools in wet or damp locations. Keep work areas clean and well lit.

6. Special electrical precautions should be taken when wor king on flammable ma teri als.

7. Avoid accidental starts by being sure that the start switch is in the “OFF” position before plugging in the machine.

8. Never leave the machine running while unattended. The machine shall be shut off whenever it i s not bein g used.

9. Disc onnect the elec tri cal po wer bef ore ser vici ng, whenever changing accessories or when general maintenance is done on the machine.

10. 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 .

11. If there is any risk of tipping or sliding, the machinery must be anchored to the floor.

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

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

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

15. Remove adjusting keys and wrenches before turning the machine on.

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

17. Use only recommended accessories and follow manufacturer’s instructions pertaining to them.

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

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

20. Know the tool you are using; its application, limitations, and potential hazards.

General Electrical Cautions

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

Wire Sizes

CAUTION: For circuits that are a great distance 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 recommende d:

Conductor

length

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

AWG (American Wire Gauge) number

Table 1

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 rep laced, 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 achieve full speed before bringing the saw blade into contact with the workpiece.

4. Keep hands away from the blade area.

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 all loose items and unnecessary workpieces from the 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 adj usting 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.

10. Nonslip footwear and safety shoes are recommended.

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

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 disconnected before reaching into cutting area.

15. Avoid contact with coolant, especially guardi ng your eyes.

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

This means that if preca utions are not heeded, it m ay result in minor injury a nd/or possible

machine damage.

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

death.

4.0 About this machine and manual

The JET 5”x8” Band Saw is available as a dry cutting saw or a wet cutting saw. If required, a dry cutting band saw can be retrofitted with a kit which converts it to use with cutting fluids. The use of an hydraulic feed delivers consistent, accurate cuts and longer blade life.

This manual is provided by JET covering the saf e operation and maintenance procedures for a JE T Model J3130 and J-3230 Band Saw. 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 years of trouble-free operation if used in accordance with the instructions as set forth in this document.

If there are questions or comments, please contact your local supplier or JET. JE T 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 attem pting assembly

or operation! Failure to comply may cause serious injury!

5.0 Features and Nomenclature

Figure 1: Features and nomenclature

6.0 Specifications

Model numbers ................................................................................. J-3130 .................................................. J-3230

Stock numbers................................................................................. 414461 ................................................. 414453

Type ....................................................................................................... dry ....................................................... wet

Mot or an d electricals:

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

Horsepower ............................................................................................................................................... 1/2 HP

Phase......................................................................................................................................................... sing le

Voltage ........................................................................................................................ 115/230V (prewired 115V)

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

Listed FLA ( full load amps) ........................................................................................................................... 9/4.5

Starting amps ............................................................................................................................................... 4 4 A

Running amps (no load) ............................................................................................................................... 7.2A

Start capacitor ........................................................................................................................200 MFD, 125 VAC

Power transfer ................................................................................................................................................ belt

On/off switch ................................................................................................................................... togg le switc h

Motor speed ........................................................................................................................................ 1725 RPM

Power cord length .......................................................................................................................... 6.4 ft. (195c m)

Power plug installed ........................................................................................................................................ yes

Recommended circuit size

Sound emission ................................................................................... 70 dB at 40” (1m) from blade, without load

Wet cutting package - coolant pump (optional) .............................................................................. single phase, 120V

subject to local/national electrical codes.

Capacities:

90° Cutting (Round) ........................................................................................................................... 5” (1 2 7mm)

90° Cutting (Rectangle) ............................................................................................ 7-1/2”w x 5”h (190 x 127mm)

90° Cutting (Flat Stock) ................................................................................................. 8”w x 1”h (200 x 25.4mm)

45° Cutting (Round) ...................................................................................................................... 4-3/4” (120mm)

45° Cutting (Rectangle) ............................................................................................ 4-3/4”w x 5”h (120 x 127mm)

Blade speeds.............................................................................................................................. 85,125,200 SFM

Wet cutting tank (optional)..................................................................................................... 1 gal (4.5L) capacity

Materials:

Table ..............................................................................................................................cast iron, ground surface

Bow........................................................................................................................................................ cast iron

Stand ........................................................................................................................................................... steel

Blade drive ....................................................... steel, heat-treated worm driving a bronze worm gear in an oil bath

Side blade guides ............ ball bearings mounted on eccentric shafts (bearings sealed and permanently lubricated)

Rear blade guides....................................................................... ball bearings, sealed and permanently lubricated

Band wheels ............................................................................................................................... flanged cast iron

Dimensions:

Blade size ........................................................................................................................ 8/12T, 2” x 0.025” x 68”

Blade wheel diameter ................................................................................................................... 7- 3/8” (187mm)

Bed height from floor................................................................................................................... 23-1/2” (600mm)

Overall machine dimensions (arm horizontal)......................................... 38”L x 16”W x 38”H (960 x 400 x 940mm)

Overall machine dimensions (arm vertical)........................................... 38”L x 16”W x 58”H (960 x 400 x 1450mm)

Net Weight ........................................................................................................................................... 134 lb (61kg)

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.

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

7.0 Set-up and assembly

Read and understand all

assembly instructions before attempting assembly. Failure to comply may cause serious injury.

7.1 Unpacking and cleanup

1. Inspect contents for shippi ng damage. Report damage, if any, to your distributor.

2. Compare c ontents of shipping carton with the contents list in this manual. Report shortages, if any, to your distributor.

7.2 Assembling the band saw

Refer to Figures 2 through 5. If further clarification is needed, refer to exploded views in sect.13.

1. Install the tray and skirt to t he two floor stands with the provided 1/4” x 1/2” carriage bolts, 1/4” lock washers and 1/4" hex nuts. T ighten nuts. See Figure 2.

Figure 3

5. Install a 5/16 x 1-1/4 hex cap screw with two flat washers and a hex nut in each of the holes that mount the saw to the stand. Do not fully tighten yet.

6. Align holes in bracket and hydraulic cylinder shaft, and secure with 3/8” x 1-1/4” socket head cap screw (Figure 4).

Figure 2

2. Install wheel assembly at right end of stand, with two 1/4"x1/2” hex cap screws, 1/4" flat washers and 1/4" hex nuts. The wheels should be positioned as shown in the photo on the cover. Tighten nuts.

3. Use an assistant to help lift band saw onto stand, aligning the holes at the four corners with the holes in the stand. Make sure front of band saw faces same direction as JET logo on stand.

4. Remove the fixed plate which secured the saw head for transport. Figure 3.

Figure 4

7. Insert a 5/16” x 4” socket head cap screw through the hydraulic cylinder, and install a hex nut and washer on the threaded end, as shown in Figure 5. Insert threaded end into hole in base casting. Do not fully tighten yet.

Figure 5

8. Install the trough between table and stand. See Figure 6. Make sure the drainage holes in the trough align with the holes in the skirt.

Figure 6

9. Tighten all screws and nuts securing the saw to the stand, and the screw on the hydraulic cylinder.

10. Tighten all hex nuts on stand assembly.

Note: The pump cable is supplied with a sta ndard plug for a 120V single phase grounded branch receptable. Always use a grounded receptable for this purpose.

11. Install handle onto stand and secure with cotter pins.

12. Install wheel kit onto stand with 1/4”x1/2” screws, washers and hex nuts.

7.3 Installing coolant kit

Refer sect. 13.4.1 for a complete view of the components in the coolant kit, and refer to Figure 7 for the attachment of the val ve to t he val ve bracket on the guide bearing seat.

1. Install the baffle in the tank so the pump is held at one end.

2. Install the 90 degree elbow and one of the hose fittings in the bottom of the coolant pump.

3. Install one end of the coolant hose on the pump fitting.

4. Put the pump in the tank and put the assembly into the tray underneath the saw base. Flanges are on the tray to keep the coolant tank i n pos ition.

5. Put the valve into the holder on the right blade guide assembly and secure it with the set screw on the holder. Position the valve so the handle is easy to operate.

6. Install the nozzle into the valve.

7. Install the hose fitting into the valve.

8. Route the hose to the hose fitting on the va lve and install it on the fitting.

9. Fill the tank with enough coolant to flow over the baffle in the tank.

10. Put the valve handle in OFF pos ition – at r ight angle to the direction of flow through the valve.

11. Install the coolant return hose and fitting to the trough and route the return hose to the tank.

12. Connect the pump to its electrical source.

Figure 7: Installing valve in valve bracket

7.3.1 Valve connection

Refer to Figure 7.

1. Install the valve, back end first, into the bracket.

2. Secure it with the set screw after being sure the handle can turn its full 1/4 turn.

3. Install the nozzle on the front of the valve, then install the hose fitting and hose on the back end of the valve.

8.0 Electrical connections

Plug the saw into a suitable service branch. The saw is a 120V single phase motor and the motor cable has a standard 3-prong grounded plug installed.

Always connect the plug to a

grounded branch circuit. If local regulations require that the saw be

permanently wired, or if the environment in which the saw is used makes this advisable, the connection should only be made by a licensed electrician who is familiar with all national and local electrical codes.

The service disconnect should have an external ON/OFF switch or lever which permits the saw operator to disconnect branch power to the saw during set-up and maintenance operatio ns as described in this manual.

8.1 Wiring diagram

The motor standard on the saw is a 120V single phase, 1750RPM motor which can also be reconfigured for 240V operation. If the saw will be used on a 240V single phase branch circuit, the electrician will find a diagram for reconfiguring the motor wiring underneath the motor terminal plate.

The wiring diagram here is included for reference when replacing the motor, ON/OFF switch or cable. These operations should be performed only by a licensed electrician.

Figure 8: Wiring diagram

for cutoff work, use the following procedure to check the blade-to-jaw angle.

1. Disconnect the saw from its electric power source.

2. W ith the saw arm in its fully lowered position, place a machinist's square,or a machinist's protractor 90 degrees, against the saw blade and right vise jaw. If the jaw is square to the blade, then no adjustment is required.

3. If adjustment is required, see Angle Cutting. The procedure for setting the jaw angle with respect to the blade is described in that section.

9.3 Angle cutting

Refer to Figure 9.

1. Loosen the right jaw pivot and lock bolts.

2. With t he arm i n its f ully lowe red pos ition, and using a machinist's protractor between the saw blade and right vise jaw, set the angle of the right jaw to the required angle.

9.0 Operating Instructions

9.1 Clamping materials in the vise

Refer to Figure 1.

1. Lift the saw arm to its full up position.

2. Lock the arm up using the hydraulic feed control valve.

NOTE: Use the handle on the arm to lift the arm. Never use any other part of the arm as a lifting method.

3. Open the left vise by turning the vise handwheel counterclockwise.

4. Adjust the vise jaws f or the appropriate cutting angle, if required. See sections on Right angle cutting and Angle cutting.

5. Put the work piece material between the vise jaws.

NOTE: If the work piece material is long, support both the ends of the material as needed to keep the material level on the saw base.

6. Turn the vise handwheel clockwise until the work piece is securely clamped in the vise.

7. Proceed to cut according to instructions in Cutting procedure.

9.2 Right angle cutting

Refer to Figures 1 and 9.

If you want to be certain the workpiece is being held in the vise at exactly 90 degrees to the blade

3. Tighten the pivot and lock bolts.

Figure 9: Using a protractor to set the vise jaws at desired angle. By setting the protractor to 90 degrees, or using a machinist's square, the jaws can also be set square with respect to the blade.

4. Lift the saw arm to its full up position and lock it up using the hydraulic feed control knob.

NOTE: Use the handle on the arm to lift the arm. Never use any other part of t he arm as a lifting method.

5. Loosen the left jaw lock bolt.

+ 22 hidden pages