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W

watts

kW

kilowatts

µF

microfarads

l

liters

kg

kilograms

N/cm2

newtons per square centimeter

Pa

pascals

h

hours

min

minutes

s

seconds

........................

alternating current

3

three-phase alternating current

3N

three-phase alternating current with neutral

........................

direct current

n0

no load

........................

alternating or direct current

........................

Class II Construction

........................

splash-proof construction

........................

watertight construction

…/min

revolutions or reciprocation per minute

REPLACEMENT PARTS

When servicing use only identical replacement parts.

MOTOR

Many Porter-Cable tools will operate on either D.C., or single phase 25 to 60 cycle A.C. current and voltage within plus or minus 5 percent of that shown on the specification plate on the tool. Several models, however, are designed for A.C. current only. Refer to the specification plate on your tool for proper voltage and current rating.

CAUTION: Do not operate your tool on a current on which the voltage is not within correct limits. Do not operate tools rated A.C. only on D.C. current. To do so may seriously damage the tool.

EXTENSION CORD SELECTION

If an extension cord is used, make sure the conductor size is large enough to prevent excessive voltage drop which will cause loss of power and possible motor damage. A table of recommended extension cord sizes will be found in this section. This table is based on limiting line voltage drop to 5 volts (10 volts for 230 volts) at 150% of rated amperes.

If an extension cord is to be used outdoors it must be marked with the suffix W-A or W following the cord type designation. For example – SJTW-A to indicate it is acceptable for outdoor use.

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Porter-Cable 740 instruction manual Replacement Parts, Motor, Extension Cord Selection

740 specifications

The Porter-Cable 740 is a powerful and versatile sander, designed for both professional tradespeople and DIY enthusiasts who require precision in their sanding projects. Renowned for its reliability and performance, the 740 series combines advanced technologies with practical features, making it an essential tool in any woodworking or finishing application.

One of the standout features of the Porter-Cable 740 is its robust motor. Equipped with a high-performance 2.5 amp motor, the sander generates an impressive amount of power, allowing it to tackle various materials with ease. This strength ensures that the user can efficiently remove material, whether smoothing rough surfaces, shaping edges, or preparing surfaces for finishing.

The design of the Porter-Cable 740 emphasizes user comfort and control. Its ergonomic grip reduces fatigue during prolonged use, making it suitable for extensive sanding tasks. Additionally, the sander is lightweight yet sturdy, facilitating easy maneuverability without sacrificing durability. The easy-to-access on/off switch is conveniently located, allowing for seamless operation.

Another significant advantage of the 740 is its variable speed control feature. This allows users to adjust the sanding speed according to the material and task at hand, providing versatility for different sanding applications. For instance, a higher speed may be used for faster material removal, while a slower speed can be ideal for fine finish sanding.

The dust collection system integrated into the Porter-Cable 740 is another highlight. It effectively captures dust and debris during operation, resulting in a cleaner work environment. The dust bag is easy to remove and empty, minimizing downtime and enhancing convenience. Additionally, this system not only keeps the work area tidy but also helps maintain better visibility of the work surface.

In terms of versatility, the Porter-Cable 740 is compatible with various sanding sheets and attachments, allowing users to customize their tool for specific tasks. This adaptability ensures that the sander remains useful for a wide range of projects, from intricate detailing to large-scale sanding tasks.

In summary, the Porter-Cable 740 combines power, versatility, and user-friendly features to cater to various sanding needs. With its reliable motor, ergonomic design, efficient dust collection, and adjustable speed, this sander makes an excellent addition to any toolkit, promising precision and performance in sanding projects of any size.