Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-2. Gear assembly, Rotor, Stator assembly, Speed change lever assembly (cont.)

Caution for Handling of Rotor

When handling or storing multiple Rotors, be sure to keep a proper distance between Rotors as shown in Fig. 13

because Rotor is a strong magnet, failure to follow this instruction could result in:

•Finger injury caused by pinching between Rotors pulling each other

•Magnetic loss of Rotors or damage on the magnet portion of Rotor. (Fig. 14)

ASSEMBLING

(1)Put Rotor into Stator complete as drawn in Fig. 15.

Fig. 15

P 4/ 11

Fig. 13

Fig. 14

* Magnetic loss of Rotors

* Damage on the magnet portion of Rotor

1.Holding Stator complete on a workbench, insert Rotor slowly in Stator complete until Rotor’s drive end reaches the workbench.

2.When the drive end of Rotor reaches the workbench, lift up Stator complete slowly.

Rotor

Stator complete

Fig. 16

(2) Make sure that Rotor’s gear engages with the super gears of Gear assembly to rotate them smoothly, and push Rotor section (Rotor and Stator) fully in Gear assembly, (Fig. 16)

(3) Assemble Speed change lever assembly as drawn in Fig. 17.

Fig. 17

Pin on the lever of Gear assembly

front Compression spring 4

Stator Gear assembly

Drill chuck

side 1. Apply the front Compression spring 4 of Speed change lever assembly to the flat side (without pin) of Gear assembly for Speed change.

Space between the rear Compression spring 4 and the pin on the lever of Gear assembly

Pin on the lever of Gear assembly for fitting into the coil of the rear Compression spring 4.

Drill chuck

 

 

2. Push Speed change lever assembly

side

 

 

toward Rotor side until it stops to

The front Compression spring 4

have space between the pin of

Gear assembly and the rear

compressed by the lever of

 

 

Compression spring 4.

Gear assembly.

 

 

 

 

 

 

3. Fit the pin of Gear assembly to Spring’s coil

Drill chuck

 

with slowly returning Speed change lever

 

assembly toward Drill chuck side.

side

 

 

 

 

4. Slide Speed change lever assembly to High speed mode: (Position 2 shown on Housing: Refer to Fig. 20 in

the next page.)

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Image 4
Makita DDF481 dimensions Damage on the magnet portion of Rotor
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DDF481 specifications

The Makita DDF481 is a powerful and versatile cordless drill driver that stands out in the competitive power tool market. Engineered for both professional tradespeople and DIY enthusiasts, this tool combines advanced technology with user-centric design, making it an essential addition to any toolkit.

One of the standout features of the Makita DDF481 is its robust brushless motor. This technology contributes to increased efficiency and a longer lifespan for the tool. The brushless motor can deliver a maximum torque of 54 Nm, making it highly effective for various applications, including drilling into wood, metal, and plastic, as well as driving screws. This torque output allows it to perform well in tough environments, ensuring users can tackle demanding projects without worry.

The DDF481 is designed with a two-speed transmission, which provides flexibility for different tasks. The first speed allows for high torque and controlled driving, perfect for larger screws or tougher materials. The second speed, on the other hand, enables high-speed drilling, which is ideal for faster drilling in lighter materials. This adaptability makes it suitable for a wide range of jobs.

Another key characteristic of the Makita DDF481 is its 1/2-inch keyless chuck that allows for quick and easy bit changes. This feature enhances productivity by saving time during bit swaps, especially when working on projects that require different attachments.

The tool is equipped with an ergonomic grip that enhances comfort during extended use. The lightweight design further reduces user fatigue, making it easier to handle during long periods of operation. Additionally, the DDF481 is compatible with Makita's extensive range of 18V lithium-ion batteries, ensuring that users can easily find a suitable power source for their needs.

Safety features such as an electronic brake, which stops the bit immediately when the trigger is released, enhance user control and prevent accidents. The integrated LED work light is another thoughtful addition, providing visibility in dimly lit areas.

Overall, the Makita DDF481 is a feature-rich and highly efficient cordless drill driver that combines power, versatility, and user comfort. It is a reliable choice for professionals looking to enhance their productivity and for hobbyists seeking quality performance in their projects.
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