JET HVBS-712 Operating Instructions and Parts Manual

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Operating Instructions and Parts Manual

Horizontal-Vertical Band Saw

Models HVBS-712, HVBS-712D

JET

HVBS-712D Deluxe model shown

1.0 IMPORTANT SAFETY

INSTRUCTIONS

Read and understand the entire instruction manual before operating machine.

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

WARNING – To reduce risk of injury:

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

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

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

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

5. Before operating this machine, remove tie, rings, watches and other jewelry, and roll sleeves up past the elbows. Do not wear loose clothing. Confine long hair. Non-slip footwear or anti-skid floor strips are recommended. Do not wear gloves.

6. Wear hearing protection (plugs or muffs) during extended periods of operation.

7. Do not operate this machine while tired or under the influence of drugs, alcohol or any medication.

8. Reduce the risk of unintentional starting. Make sure switch is in off position before plugging in.

9. Make certain the machine is properly grounded.

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

11. Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adjusting wrenches are removed from the machine before turning it on.

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

13. Check damaged parts. Before further use of the machine, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced.

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

15. Keep work area clean. Keep floor around the machine free of scrap material, oil and grease. Cluttered areas and benches invite accidents.

16. Keep visitors a safe distance from the work area. Keep children away.

17. Make your workshop child-proof with padlocks, master switches or by removing starter keys.

18. Give your work undivided attention. Looking around, carrying on a conversation and “horseplay” are careless acts that can result in serious injury.

19. Maintain a balanced stance at all times so that you do not fall into the blade or other moving parts. Do not overreach or use excessive force to perform any machine operation.

20. Use the right tool at the correct speed and feed rate. Do not force a tool or attachment to do a job for which it was not designed. The right tool will do the job better and more safely.

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

22. Maintain tools with care. Keep saw blades sharp and clean for the best and safest performance. Follow instructions for lubricating and changing accessories.

23. Turn off the machine before cleaning. Use a brush to remove chips or debris — do not use your hands.

24. Do not stand on the machine. Serious injury could occur if the machine tips over, or if the cutting tool is unintentionally contacted.

25. Never leave the machine running unattended. Turn the power off and do not leave the machine until it comes to a complete stop.

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

27. Make sure workpiece is securely clamped in vise. Never use your hand to hold the workpiece.

28. Never reach around or over a moving saw blade.

29. Do not remove jammed cutoff pieces until blade has stopped.

30. Feed work into a blade or cutter only against the direction of rotation of the blade or cutter.

31. Maintain proper adjustment of blade tension, blade guides and thrust bearings.

32. Minimize blade exposure by adjusting blade guides to just clear workpiece.

33. Check coolant level daily. Replace dirty or weak coolant.

34. Don’t use in dangerous environment. Don’t use power tools in damp or wet location, or expose them to rain. Keep work area well lighted.

35. Use proper extension cord. Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. Table 1 (sect. 6.3) shows correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage number, the heavier the cord.

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

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

WARNING: Some dust, fumes and gases created by power sanding, sawing, grinding, drilling, welding and other construction activities contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are:

 lead from lead based paint  crystalline silica from bricks, cement and

other masonry products  arsenic and chromium from chemically

treated lumber Your risk of exposure varies, depending on how often you do this type of work. To reduce your exposure to these chemicals, work in a wellventilated area and work with approved safety equipment, such as dust masks that are specifically designed to filter out microscopic particles. For more information go to http://www.p65warnings.ca.gov/ and http://www. p65warnings.ca.gov/wood.

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

machine damage.

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

injury.

SAVE THESE INSTRUCTIONS

2.0 On-off switch padlock

To avoid accidental starting by young children or others not qualified to use the tool, the use of a padlock (not provided) is required.

To lock out the on-off switch (Figure 2-1):

1. Open padlock.

2. Insert through hole in switch guard.

3. Close padlock.

4. Store key in a safe place out of the reach of children.

Figure 2-1

3.0 Table of contents

Section Page

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

2.0 On-off switch padlock ..................................................................................................................................... 3

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

4.0 About this manual .......................................................................................................................................... 5

5.0 Specifications ................................................................................................................................................. 6

6.0 Setup and assembly ....................................................................................................................................... 8

6.1 Shipping contents ....................................................................................................................................... 8

6.2 Tools required for assembly ....................................................................................................................... 8

6.3 Unpacking and cleanup .............................................................................................................................. 8

6.4 Assembly .................................................................................................................................................... 8

6.5 Coolant tank preparation .......................................................................................................................... 10

7.0 Electrical connections .................................................................................................................................. 10

7.1 GROUNDING INSTRUCTIONS ............................................................................................................... 10

7.2 Voltage conversion ................................................................................................................................... 11

7.3 Extension cords ........................................................................................................................................ 11

8.0 Adjustments ................................................................................................................................................. 11

8.1 Tools required for adjustments ................................................................................................................. 11

8.2 Vertical bow position ................................................................................................................................ 11

8.3 Blade Speed ............................................................................................................................................. 12

8.4 Blade guides ............................................................................................................................................. 12

8.5 Blade replacement ................................................................................................................................... 13

8.6 Blade guide bearings ................................................................................................................................ 13

8.7 Chip brush ................................................................................................................................................ 14

8.8 Blade tension ............................................................................................................................................ 14

8.9 Blade tracking ........................................................................................................................................... 14

8.10 Test cut to verify adjustment .................................................................................................................. 14

8.11 Setting feed rate ..................................................................................................................................... 15

8.12 Counterbalance spring ........................................................................................................................... 15

8.13 Blade-to-table squareness ..................................................................................................................... 16

8.14 Auto shut-off adjustment ........................................................................................................................ 16

8.15 Vise positioning (712D only) ................................................................................................................... 16

8.16 Vise positioning (712 only) ..................................................................................................................... 17

9.0 Operation ..................................................................................................................................................... 17

9.1 Blade break-in .......................................................................................................................................... 17

9.2 General operating procedure ................................................................................................................... 17

9.3 Evaluating cutting efficiency ..................................................................................................................... 18

10.0 User-maintenance ...................................................................................................................................... 18

10.1 Lubrication .............................................................................................................................................. 18

10.2 Coolant level ........................................................................................................................................... 19

10.3 Additional servicing ................................................................................................................................ 19

11.0 Troubleshooting HVBS-712/712D Band Saw ............................................................................................ 19

11.1 Mechanical and electrical problems ....................................................................................................... 19

11.2 Operational problems ............................................................................................................................. 20

12.0 Replacement Parts ..................................................................................................................................... 21

12.1.1 HVBS-712/712D Bed and Stand Assembly – Exploded View ............................................................. 22

12.1.2 HVBS-712/712D Bow Assembly – Exploded View ............................................................................. 23

12.1.3 HVBS-712/712D – Parts List ............................................................................................................... 24

13.0 Electrical Connections – HVBS-712/712D Band Saw ................................................................................ 29

14.0 Warranty and service ................................................................................................................................. 30

4.0 About this manual

This manual is provided by JET, covering the safe operation and maintenance procedures for a JET Model HVBS-712 and HVBS-712D 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 consistent, long-term 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. JET can also be reached at our web site: www.jettools.com.

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

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

operation! Failure to comply may cause serious injury!

5.0 Specifications

Model number ................................................................ HVBS-712D .................................................... HVBS-712

Stock number ........................................................................ 414560 ......................................................... 414559

Motor and electricals: Main motor:

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

Horsepower ....................................................... 3/4 HP (0.56 kW) ......................................... 3/4 HP (0.56 kW)

Phase ......................................................................................... 1 ................................................................... 1

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

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

Listed FLA (full load amps) ................................................ 12/6 A ........................................................... 12/6 A

Starting amps ................................................................. 36A/18A ....................................................... 36A/18A

Running amps (no load) ............................................... 9.8A/4.9A ..................................................... 9.8A/4.9A

Start capacitor .................................................. 300MFD 125VAC ......................................... 300MFD 125VAC

Motor speed ................................................................ 1720 RPM .................................................... 1720 RPM

Pump motor:

Horsepower ............................................................. 1/8HP (90W) ................................................ 1/8HP (90W)

Phase/voltage ............................................................................ 1 ................................................................... 1

Voltage ............................................... 120/240V (prewired 120V) ........................... 120/240V (prewired 120V)

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

Listed FLA ...................................................................... 0.5/0.2 A ....................................................... 0.5/0.2 A

Pump motor speed ...................................................... 3450 RPM .................................................... 3450 RPM

Capacitor ...................................................................... 1F 400V ..................................................... 1F 400V

Power transfer ..................................................................... v-belt ............................................................ v-belt

On/off switch ...................................................................... toggle ........................................................... toggle

Power cable ..................... 16AWG x 3C, length 6-1/2 ft. (200cm) ......... 16AWG x 3C, length 6-1/2 ft. (200cm)

Power plug installed ............................................................. 120V ............................................................. 120V

Recommended circuit and fuse/breaker size

Capacities:

Round at 90 degrees........................................... 7 in. (177.8mm) ............................................ 7 in. (177.8mm)

Round at 45 degrees.............................................. 5 in. (127mm) ...................................... 4-1/2 in. (114.3mm)

Rectangle at 90 degrees ..................................... 1(H) x 12(W) in. ............................................ 1(H) x 12(W) in.

...................................................................... 2(H) x 11-1/4(W) in. ..................................... 2(H) x 11-1/2(W) in.

............................................................................ 4(H) x 11(W) in. ............................................. 4(H) x 11(W) in

...................................................................... 7(H) x 10-1/4(W) in. ..................................... 7(H) x 10-3/8(W) in.

Rectangle at 45 degrees ....................................... 6(H) x 4(W) in. ................................. 6-1/2(H) x 4-1/2(W) in.

Square at 90 degrees....................................................... 7 x 7 in. ........................................................ 7 x 7 in.

Square at 45 degrees........................................................ 5 x 5 in ............................................. 4-1/2 x 4-1/2 in

Gearbox oil capacity............................................ 3/4 pint (0.35 L) ............................................ 3/4 pint (0.35 L)

Coolant tank capacity ............................................... 2.5 gal. (9 L) ................................................. 2.5 gal. (9 L)

Bow and blade:

Blade type (provided) ............................................. Bi-metal, 5/8T ............................................... Bi-metal, 5/8T

Blade size .................... ....3/4 x 0.035 x 93 in.(19 x 0.9 x 2360mm) .... 3/4 x 0.035 x 93 in.(19 x 0.9 x 2360mm)

Number of blade speeds ............................................................ 4 ................................................................... 4

Blade speeds ........................................ 86, 132, 178, 260 SFPM .............................. 86, 132, 178, 260 SFPM

Blade wheel diameter.................................. 11-3/4 in. (298.5mm) .................................... 11-3/4 in. (298.5mm)

Gear ratio ........................................................... 1/20 (M2.5x20T) ........................................... 1/20 (M2.5x20T)

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

Bed and vise:

Bed height from floor (without wheels) ............. 22.4 in. (569mm). .......................................... 22.4 in. (569mm)

Vise swivel ....................................................................... 45 deg. ......................................................... 45 deg.

Vise detents ..................................................... 0, 15, 30, 45 deg. ................................................................ n/a

Subject to local/national electrical codes.

Main materials:

Bed ........................................................ cast iron, ground surface ............................. cast iron, ground surface

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

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

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

Side blade guides…………………………………………….ball bearings mounted on eccentric shafts ..............

Rear blade guides .................................................... ball bearings ................................................. ball bearings

Band wheels............................................................. ball bearings ................................................. ball bearings

Dimensions:

Table plate dimensions ...................... 12 x 12 in. (305 x 305mm) ........................... 12 x 12 in. (305 x 305mm)

Overall dimensions, assembled ........................... 48 x 17 x 40 in. ............................................. 48 x 17 x 40 in.

.............................................................. (1219 x 432 x 1016 mm) .............................. (1219 x 432 x 1016 mm)

Overall dimensions, shipping .................. 51.18 x 19.2 x 44.88 in. ................................ 51.18 x 19.2 x 44.88 in.

.............................................................. (1300 x 488 x 1140 mm) .............................. (1300 x 488 x 1140 mm)

Stand wheels.......................................................... 8 in. (203mm) ............................................... 8 in. (203mm)

Weights:

Net weight ......................................................... 374 lbs. (170 kg) .......................................... 374 lbs. (170 kg)

Shipping weight ................................................. 418 lbs. (190 kg) .......................................... 418 lbs. (190 kg)

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.

6.0 Setup and assembly

Read and understand all

instructions before attempting assembly. Band Saw must be disconnected from power during all assembly procedures. Failure to comply may cause serious injury.

6.1 Shipping contents

See Figures 6-1, 6-2.

1 Band saw (not shown) 1 Pulley cover – A 1 Table Plate – B 1 Handle with washer and nut – C 4 Wheels – D 2 Axles – E 2 Supports (1 long, 1 short) – F (712D only) 1 Filter assembly – G 1 Work stop assembly – H (712D only) 1 Work stop assembly – I (712 only)

1 Hardware package (p/n HVBS712-HP): 1 Lock screw – HP1 2 Hex cap bolts 1/4 x 1/2 – HP2 2 Flat washers 1/4 – HP3 2 Wire nuts – HP4 4 Flat head screws 1/4 x 3/8 – HP5 4 Flat washers 5/8 – HP6 4 Cotter pins – HP7

6.2 Tools required for assembly

Wrenches, 10mm and 19mm #2 cross point screwdriver Pliers

6.3 Unpacking and cleanup

1. Inspect all contents for shipping damage. Compare contents of shipping carton with contents list in this manual. Report any damage or part shortages to your distributor.

2. Do not discard packing material until saw is assembled and running properly.

3. Remove rust protectant from exposed surfaces, such as bed, vise assembly, etc., with a clean rag and a cleaner/degreaser. Apply a light coat of oil on these surfaces to inhibit rust.

6.4 Assembly

Note: Most figures in this manual show 712D Deluxe model. Procedures for 712 basic model will be identical, except where noted.

1. Remove braces holding saw stand to pallet, and carefully raise saw from pallet, using properly rated lifting equipment (hoist or forklift) with straps placed beneath cast iron portion of saw.

2. Slide axles through holes in stand, and install four wheels with flat washers and cotter pins (Figure 6-3). Bend ends of cotter pins to secure wheel, then carefully lower saw to floor.

Figure 6-1: shipping contents

Figure 6-2: hardware package HVBS712-HP

3. Remove shipping bracket (Figure 6-4). Then

Figure 6-3: installing wheels

reinstall bottom hex nut beneath plate. Retain shipping bracket in case machine must be transported in future.

Figure 6-4: shipping bracket removal

4. Install handle with flat washers and nut (C, Figure 6-5), using 19mm wrench. To install, raise bow to vertical position and open guard. CAUTION: Spring-tensioned stop bracket (see Figure 7-1) must be rotated out of the way before raising bow.

Figure 6-5: installing handle

5. 712D only: Install work stop rod (H

6) into hole and tighten knurled nut (H

, Figure 6-

). Install

work stop onto rod threads by rotating collar

). Secure position of work stop by tightening

set screw (H

) onto rod flat.

Figure 6-7: installing work stop (712 only)

6. Slide pulley cover (A, Figure 6-8) over spindles and secure with screws and washers (HP2/HP3), using 10mm wrench.

7. Install lock screw (HP1) to secure pulley cover.

Figure 6-8: installing pulley cover

8. The table plate (B, Figure 6-9) may be used as cutting table in vertical mode (models 712 and 712D), or may be used as infeed table in horizontal mode (712D only). To use as infeed table for model 712D, place supports (F) on channel of saw bed as shown, and install plate with flat head screws (HP5).

To use plate as cutting table in vertical mode, refer to sect. 7.2.

Figure 6-6: installing work stop (712D only)

712 only: Install work stop rod into hole and tighten knurled nut (H

). Slide stop block onto

rod and secure with thumb screw. See Figure 6-7.

Figure 6-9: installing infeed table (712D only)

9. Place filter assembly (G, Figure 6-10) over drain hole.

Figure 6-10: coolant tank

6.5 Coolant tank preparation

Use of a water-soluble coolant will increase cutting efficiency and prolong blade life. Do not use black cutting oil as a substitute. Change cutting oil often and follow manufacturer’s instructions as to its uses and precautions.

1. Disconnect machine from power source.

2. Pour coolant into hole through strainer cup. Fill tank to approximately 80% of capacity.

3. Make sure coolant hose is properly connected at each end, and return hose is connected to drain hole and positioned in strainer cup, as shown in Figure 6-10.

7.0 Electrical connections

The HVBS-712 and HVBS-712D Band Saw is rated at 115/230V power, and is pre-wired for 115 volt. The band saw comes with a plug designed for use on a circuit with a grounded outlet that looks like the one pictured in A, Figure 7-1.

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

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

precedence over recommendations.

Improper connection of the equipment-grounding conductor can result in a risk of electric shock. The conductor with insulation having an outer surface that is green with or without yellow stripes is the equipment-grounding conductor. If repair or replacement of the electric cord or plug is necessary, do not connect the equipment-grounding conductor to a live terminal.

Check with a qualified

electrician or service personnel if the grounding instructions are not completely understood, or if in doubt as to whether the tool is properly grounded. Failure to comply may cause serious or fatal injury.

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

Repair or replace damaged or worn cord immediately.

When operated at 115-volt, this tool is intended for use on a circuit that has an outlet that looks like the one illustrated in A, Figure 7-1. An adapter, shown in B and C, may be used to connect this plug to a 2-pole receptacle as shown in B if a properly grounded outlet is not available. The temporary adapter should be used only until a properly grounded outlet can be installed by a qualified electrician. The green-colored rigid ear, lug, and the like, extending from the adapter must be connected to a permanent ground such as a properly grounded outlet box. Note: In Canada, the use of a temporary

adaptor is not permitted by the Canadian Electrical Code, C22.1.

7.1 GROUNDING INSTRUCTIONS

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

Do not modify the plug provided - if it will not fit the outlet, have the proper outlet installed by a qualified electrician.

Figure 7-1: grounding

When operated at 230-volt, this tool is intended for use on a circuit that has an outlet that looks like the one illustrated in D, Figure 7-1. The tool has a grounding plug that looks like the plug illustrated in D. Make sure the tool is connected to an outlet having the same configuration as the plug. No adapter is available or should be used with this tool. If the tool must be reconnected for use on a different type of electric circuit, the reconnection should be made by qualified service personnel; and after

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