All electrical service work on your JET sander should be performed by a qualified, licensed electrician who is familiar with all safe standard electrical installation practices and all applicable electrical codes. This includes local electrical codes which may affect the connection and operation of the sander in your specific manufacturing operation.

9.1Single phase electrical hookup

When connecting your machine to single phase power, you may be connecting to either 115 or 230 volts, depending upon the motor type provided. Local codes may, or may not, permit the use of a plug type of connection for your machine. Where a plug connection is permitted, the following installation practices must be followed:

1.The plug used must be a grounding type of plug. That is, on a 115 volt single phase connection, the plug must be a three-prong plug with two flat, parallel blades for the power wires and a single rounded or U-shaped prong for the ground connection. On 230 volt single phase connections, the lug must be a three prong plug with two flat blades in tandem to carry the current, and a third round or U-shaped prong for the ground connection.

2.The service branch to which the plug is connected must be a branch with a separate ground wire so the grounding prong of the plug can be connected to ground effectively.

Note: Local electrical codes in many jurisdictions

DO NOT ALLOW THE USE OF PLUG TYPE CONNECTIONS FOR SINGLE PHASE POWER WHEN THE MACHINE IS USED IN A COMMERCIAL OR INDUSTRIAL ESTABLISHMENT.

In these cases you must connect your machine to the service branch using a hardwired junction box connection.

Motor rotation

The motor's rotation should result in the belt sander moving downward and the disc sander rotating counterclockwise.

Voltage conversion

Single phase machines are pre-wired for 115V or 230V per customer request. If it becomes necessary to change the voltage, remove the back cover from the base and place the machine on its side. Remove the terminal cover from the motor. Rewire the motor according to the motor connection diagram in section

12.1.Different electrical plugs are required depending on which voltage you select. This completes the voltage conversion process.

Circuit protection

Where the service branch is protected with a fuse or circuit breaker that has too high a value to offer protection to the motor supplied, a fuse or circuit breaker box should be used at the point where the

machine connection is made and the time delay fuse or circuit breaker should be a value just slightly higher than the maximum load current draw.

9.2Three phase electrical hookup

1.Be certain the power to the branch you are connecting is off and locked out, so power cannot be reestablished accidentally.

2.Connect the ground wires. These wires will be either green, or green with a white stripe.

3.Connect the remaining three cable wires to the three power wires in the service branch.

4.Reestablish the power to the branch.

Motor rotation

The motor should be turning counterclockwise, the belt sander should be moving downward and the disc sander should be turning clockwise. If this is the case, the machine can be considered wired correctly. If the motor is not turning in the correct direction, take the following corrective action:

1.Disconnect power in the branch again and be certain it cannot be accidentally turned on while you correct the wiring.

2.Reverse ANY TWO of the power wires to the machine.

3.Reestablish the power to the machine.

4.Turn the machine on. The motor should now be turning in the correct direction.

Voltage conversion

Three phase machines are pre-wired for 230V or 460V per customer request. If it becomes necessary to change the voltage:

1.Remove back cover from the base and place machine on its side.

2.Remove terminal cover from motor. Rewire the motor according to the motor connection diagram in section 12.2.

3.Replace the current magnetic switch with the 460V switch (p/n 4202A-5095, purchased separately – see your dealer or contact Walter Meier to order).

4.This completes the voltage conversion process.

Circuit protection

Where the service branch is protected with a fuse or circuit breaker that has too high a value to offer protection to the motor supplied, a fuse or circuit breaker box should be used at the point where the machine connection is made and the time delay fuse or circuit breaker should be a value just slightly higher than the maximum load current draw.

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Jet Tools J-4300A Single phase electrical hookup, Three phase electrical hookup, Motor rotation, Voltage conversion
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J-4301A, J-4300A, J-4202A, J-4401A, J-4400A specifications

Jet Tools is a renowned name in the woodworking and metalworking industries, known for delivering high-quality machinery and tools. Among their notable products are the J-4200A, J-4200A-2, J-4400A, J-4401A, and J-4202A, all of which exhibit excellent craftsmanship and innovative features.

The Jet J-4200A is a well-regarded 6-inch jointer designed to give woodworkers precision and versatility. It features a heavy-duty cast iron table that offers stability and reduces vibration during operation. The 1-horsepower motor provides ample power for jointing hardwoods, while the easy-to-adjust fence ensures accurate jointing angles up to 45 degrees. The combination of a built-in dust port and a smooth operation makes it a favorite among professionals and hobbyists alike.

The J-4200A-2 takes the functionality of the J-4200A up a notch by including an upgraded 2-horsepower motor. This increased power allows for smoother operation and the capability to handle larger workpieces with ease. The J-4200A-2 also features an improved blade set that enhances cutting efficiency, allowing users to achieve finer finishes with less effort.

On the larger end of the spectrum, the Jet J-4400A serves as a robust 8-inch jointer that combines additional surface area with heavy-duty construction. This model features a precision-ground cast iron table and an extra-long bed, allowing for exceptional control over larger projects. The J-4400A's powerful 1.5-horsepower motor, complemented by its impressive feed rate, makes it ideal for serious woodworkers looking to take on demanding tasks.

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Finally, the Jet J-4202A is designed as a versatile machine for both jointer and planer applications. It offers a space-saving solution for workshops where floor area is a concern. With its dual functionality, the J-4202A allows users to switch between operations seamlessly, emphasizing Jet's commitment to innovation and practicality in woodworking machinery.

In summary, the Jet Tools J-4200A series stands out for its combination of powerful motors, durable construction, and precision engineering. Each model is built to cater to the varying needs of woodworkers, ensuring that performance, versatility, and user-friendliness are at the forefront of their design. By integrating technology and thoughtful features, Jet Tools continues to support the craftsmanship of woodworking enthusiasts and professionals alike.
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