JET 756090 User Manual

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Operating Instructions and Parts Manual

20-Ga. Pittsburgh Lockformer

Model LF-20

JET

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

13. Make certain the machine is properly grounded.

1.0 IMPORTANT SAFETY

INSTRUCTIONS

WARNING – To reduce risk of injury:

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

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

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

4. This lockformer is designed and intended for use by properly trained and experienced perso nnel on ly. If you are no t fam iliar w ith the proper and safe operation of a lockformer, do not use until proper training and knowledge have been obtained.

5. Do not use this machine for other than its intended use. If used for other purposes, JET disclaims any real or implied warranty and holds itself harm less from any inj ury t hat m ay res ult from that use.

6. Always wear ANSI Z87.1 approved safety glasses or face sh iel d whil e usin g th is machin e. (Everyday eyeglasses only have impact resistant lenses; they are not safety glasses.)

7. 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 recom mended. Do not wear gloves.

8. Wear hearing protection (plugs or muffs) if noise exceeds safe levels.

9. CALIFORNIA PROPOSITION 65 WARNING: This product contains chemicals know n to the State of California to cause cancer, or birth defects or other reproductive harm.

10. This product, when used for welding, cutting, or working with metal, produces fumes, gases, or dusts which contain chemicals known to the State of California to cause birth defects and, in some cases, cancer. (California Health and Safety Code Section 25249.5 et seq.)

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

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

15. 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.

16. 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.

17. 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 a nd perform its i ntended 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.

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

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

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

21. Make your workshop child proof w ith padlocks, master switches or by removing starter keys.

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

23. Maintain a balanced stance at all times so that you do not fall onto moving parts. Do not overreach or use excessive force to perform any machine operation.

24. 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.

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

26. Maintain tools with care. Follow instructions for lubricating and changing accessories.

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

28. Do not stand on the machine. Serious injury could occur if the machine tips over.

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

30. Remove loose items and unnecessary work pieces from the area before starting the machine.

31. Disconnect machine from power source (unplug) before changing out roll sets.

32. Top covers must be properly installed before feeding workpiece.

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, or possibly even fatal,

injury.

33. 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.

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

2.0 About this manual

This manual is provided by JET, covering the safe operation and maintenance procedures for a JET Model LF20 Lockformer. 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 s et 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!

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

3.0 Table of contents

Section Page

1.0 IMPORTANT SAFETY INSTRUCTI ONS ....................................................................................................... 2

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

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

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

5.0 Setup and assembly ....................................................................................................................................... 6

5.1 Shipping contents ....................................................................................................................................... 6

6.0 Electrical connections .................................................................................................................................... 6

6.1 GROUNDING INSTRUCTIONS ................................................................................................................. 6

6.2 Extension cords .......................................................................................................................................... 7

7.0 Operation ....................................................................................................................................................... 7

7.1 Pittsburgh Lock Seam procedure ............................................................................................................... 7

7.2 Double Seam procedure ............................................................................................................................ 8

7.3 Drive Cleat procedure ................................................................................................................................ 8

8.0 Adjustments ................................................................................................................................................... 9

8.1 Hold-downs ................................................................................................................................................ 9

9.0 User-maintenance .......................................................................................................................................... 9

9.1 Cleaning and lubrication ............................................................................................................................. 9

9.2 Additional servicing .................................................................................................................................... 9

10.0 Replacement Parts ....................................................................................................................................... 9

10.1.1 LF-20 Lockformer – Exploded View .................................................................................................... 10

10.1.2 LF-20 Lockformer – Parts List ............................................................................................................. 11

10.2.1 LF-20 Upper Bracket – Exploded View ............................................................................................... 12

10.2.2 LF-20 Upper Bracket – Parts List ........................................................................................................ 13

10.3.1 LF-20 Lower Bracket – Exploded View ............................................................................................... 14

10.3.2 LF-20 Lower Bracket – Parts List ........................................................................................................ 15

10.4.1 LF-20 Optional Rollers – Exploded View ............................................................................................. 16

10.4.2 LF-20 Optional Rollers – Parts List ..................................................................................................... 16

11.0 Electrical Connections for LF-20 ................................................................................................................ 17

12.0 Warranty and service ................................................................................................................................. 18

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.

4.0 Specifications

Model number ............................................................................................................................................... LF-20

Stock number .............................................................................................................................................. 756090

Motor and electricals:

Motor type ............................................................................................................................. TEFC, capacitor start

Horsepower .............................................................................................................................................. 1.5HP

Phase ........................................................................................................................................................ single

Voltage ...................................................................................................................................................... 115 V

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

Listed FLA (full load amps) ......................................................................................................................... 14 A

Running amps (no load) ............................................................................................................................. 7.1 A

Starting amps .............................................................................................................................................. 51 A

Start capacitor .......................................................................................................................... 200MF 125VAC

Run capacitor .............................................................................................................................. 40μF 250VAC

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

On/off switch .................................................................................................... mushroom style with safety key

Power cord ........................................................................................................ SJT 3/14AWG; 6 ft. (1830 mm)

Power plug installed ...................................................................................................................... NEMA 5-15P

Recommended circuit and fuse/breaker size 1 ............................................................................................. 15A

Capacities:

Pittsburgh lock dimensions ........................................ Approx. 25mm (1-in.) of material, 0.5-1.0mm (20-26ga.)

8mm (5/16 in.) width of hammer-over edge, adjustable up to 9.5mm (3/8 in.)

Speed ..................................................................................................................................... 7.62m (25 ft.)/min

Minimum length of workpiece....................................................................................................... 7 in. (178mm)

Main materials:

Cabinet ....................................................................................................................................................... steel

Rolls ................................................................................................................................... hardened alloy steel

Guide fences .............................................................................................................................. hardened steel

Shafts ................................................................................... hardened and ground steel, with needle bearings

Dimensions:

Height table from floor ......................................................................................................... 819 mm (32-1/4 in.)

Overall dimensions (LxWxH) ..................................................... 914 x 419 x 927 mm (36 x 16-1/2 x 36-1/2 in.)

Shipping dimensions (LxWxH) .......................................... 1075 x 510 x 1075 mm (42-5/16 x 20 x 42-5/16 in.)

Weights:

Net.......................................................................................................................................... 266 lb. (120.6 kg)

Shipping ................................................................................................................................. 341 lb. (154.6 kg)

Type Roll set Capacity Approx. mat’l used Size

Pittsburgh lock seam

(standard, pre-mounted)

Double seam (DSS)

OPTIONAL 2

Subject to local and national electrical codes.

Optional Double Seam and Drive Cleat roll sets are available from JET. See sect. 10.4.1.

Drive cleat (DCS)

OPTIONAL

0.5 - 1.0 mm 20 to 26 ga

0.5 - 1.0 mm

20 to 26 ga.

0.5 – 1.0 mm 20 to 26 ga.

25mm (1”)

25.4mm (1”)

54mm (2-1/8”)

8 mm

5/16” width

10 mm

3/8” seam

28.5 mm

1-1/8” width

Read and understand the entire contents of this manual before attem pting setup or operation! Failure to comply may cause serious injury.

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.

5.0 Setup and assembly

Remove all crating and check for shipping damage. Report any damage immediately to your distributor and shipping agent. Do not discard any shipping material until the Lockformer is assembled and running properly.

Compare contents with the following list to make sure all parts are intact. Any missing parts should be reported to your distributor. Read this instruction manual thoroughly for operation, maintenance and safety instructions.

Remove fasteners holding machine to pallet, and use forklift or hoist with straps to move lockformer to position. Location should be well-lighted, with a sturdy, level floor. It is recommended that the machine be secured to the floor with lag screws or other means for stability.

5.1 Shipping contents

1 Lockformer 2 Wrenches, 23/26 and 12/14mm 2 Hex wrenches, 4mm and 6mm 1 Formed sample plate 10 Double head round keys

6.0 Electrical connections

All electrical connections must be done by a qualified electrician in compliance with all local codes and ordinances. Failure to comply may result in serious injury.

The LF-20 Lockformer is rated at 115-volt power only, and is supplied with a plug designed for use on a circuit with a grounded outlet that looks like the one pictured in Figure 6-1.

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

Improper connection of the equipment-grounding conductor can result in a risk of electric shock. The cond uctor 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.

This machine is for use on a nomi nal 120-V circ uit, and has a grounded plug that looks like the plug illustrated in sketch A in Figure 6-1. A temporary adaptor that looks like the adaptor illustrated in sketch B may be used to connect this plug to a 2pole receptacle as shown in sketc h B if a properly grounded outlet is not available. The temporary adaptor should be used only until a properly grounded outlet (sketch A) can be installed by a qualified electrician. The green colored rigid ear, lug, or the like extending from the adaptor must be connected to a permanent ground such as a properly grounded outlet box cover. W henever the adaptor is used, it must be held in place by a metal screw.

In Canada, the use of a temporary adapto r is not permitted by the Canadian Electrical Code, C22.1.

It is recommended that the Lockformer 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.

6.1 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 w it h an electric cord having an equipment-grounding conductor and a grounding plug. The plug must be plugged into a matching outlet that is properly

Figure 6-1

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