injury. Threaded accessories must have a 5/8"–11 (B3) & M14 (AR, B2, B2C, BR) hub. Every unthreaded accessory must have a 7/8" (22.2 mm) arbor hole. If it does not, it may have been designed for a circular saw. Use only the accessories shown on pages 62–64of this manual. Accessory ratings must always be above tool speed as shown on tool nameplate.

Mounting Guard

CAUTION: Guards must be used with all grinding wheels, cutting wheels, sanding flap discs, wire brushes, and wire wheels. The tool may be used without a guard only when sanding with conventional sanding discs. A Type 1 guard is available at extra cost from your local dealer or authorized service center. Grinding and cutting with wheels other than Type 27 and 29 require different accessory guards not included with tool. A Type 27 guard is provided for use with the Type 27 wheel. Mounting instructions for accessory guards are shown below and are also included in the accessory package.

MOUNTING AND REMOVING GUARD (FIG. 4, 5)

1.Open the guard latch (K), and align the lugs (L) on the guard with the slots on the gear case (M). This will align the lugs on the guard with the slots on the gear case cover.

3.With the guard latch open, rotate the guard (F) into the desired working position. The guard body should be positioned between the spindle and the operator to provide maximum operator protection.

4.Close the guard latch to secure the guard on the gear case. You should not be able to rotate the guard by hand when the latch is closed. Do not operate the grinder with a loose guard or with the guard latch in open position.

5.To remove the guard, follow the procedure above in reverse order.

NOTE: The guard is pre-adjusted to the

FIG. 5

diameter of the gear case hub at the factory.

 

If, after a period of time, the guard becomes

N

loose, tighten the adjusting screw (N) with

 

guard latch in the closed position with guard

 

installed on the tool.

 

CAUTION: Do not tighten the adjusting screw with the guard latch in the open

position. Undetectable damage to the guard or the mounting hub may result.

CAUTION: If the guard cannot be tightened by the adjusting clamp, do not use the tool. To reduce the risk of personal injury, take the tool and guard to a service center to repair or replace the guard.

FIG. 4

L

K

M

F

NOTE: Edge grinding and cutting can be performed with Type 27 wheels designed and specified for this purpose; 1/4" (6.35 mm) thick wheels are designed for surface grinding while 1/8" (3.17 mm) wheels are designed for edge grinding. Cutting can also be performed by using a Type 1 wheel and a Type 1 guard.

OPERATION

Switch (Fig. 6)

English

2.Push the guard down until the guard lugs engage and rotate freely in the groove on the gear case hub.

CAUTION: Before connecting the tool to a power source or after a power failure, depress and release the trigger switch (A) once without depressing the lock-on button (C) to ensure that the switch is in the off position. If the trigger switch is locked on, the tool will start

61

Page 60 Page 62
Page 61
Image 61
DeWalt DWE4557 instruction manual Mounting Guard, Operation, Switch Fig, Mounting and Removing Guard, Installed on the tool
Page 60 Page 62

DWE4557 specifications

The DeWalt DWE4557 is a powerful and robust angle grinder designed to deliver high performance and durability for both professional and DIY enthusiasts. This tool is equipped with a 4.5-inch diameter wheel and is renowned for its efficient performance in heavy-duty applications. One of its key features includes a 13-amp motor that provides a remarkable power output of 2,000 watts, ensuring that it can handle tough materials such as metal and masonry with ease.

One of the standout technologies in the DWE4557 is its electronic kickback brake, which engages in the event of a wheel bind-up. This feature helps to minimize the risk of injury and maximizes user safety by bringing the wheel to a stop quickly. The grinder also boasts a no-volt release switch that prevents the tool from starting unexpectedly when reconnected to a power source—a vital safety consideration for frequent users.

The DWE4557 is designed with user comfort in mind. It has an anti-vibration handle that significantly reduces the amount of vibration felt during operation, allowing for prolonged use without causing discomfort to the user’s hands and arms. The handle can be adjusted for optimal control and comfort, accommodating different user preferences.

Additionally, the angle grinder has an integrated safety guard that can be easily adjusted for convenience and operational versatility. The guard protects the user from debris and sparks while grinding or cutting, thereby enhancing safety during use. The DWE4557 also features a spindle lock for easy wheel changes, making it quick and straightforward to switch between different attachments based on the job at hand.

It is worth noting that the DeWalt DWE4557 is designed for durability. It includes a robust, durable construction that can withstand the rigors of heavy usage, ensuring a long lifespan of the tool. The gear case is also designed for longevity, with a high-performance drive system that ensures consistent and reliable operation.

Overall, the DeWalt DWE4557 is a reliable angle grinder that combines power, performance, and safety features in a compact and durable design. Whether for professional applications or personal projects, this tool is well-equipped to deliver outstanding results in a variety of grinding and cutting tasks.
Top Page Image Contents