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Repair

[3] DISASSEMBLY/ASSEMBLY

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

Note: • Be sure to route the lead wires for LED circuit to the space between ribs of Gear assembly after setting Gear assembly in place. (Fig. 20)

If the routing is done before assembling Gear assembly, the breakage or pinching of the lead wires will happen.

•When Housing L are fastened to Housing R, the clearance is left because of the existence of Gear assembly in Housing L and Housing R. Therefore, clamp them with a waterpump pliers carefully. (Fig. 21.)

Fig. 20

Fig. 21

Clamp the designated positions carefully not to leave the clearance between Housing L and R when tightening PT3x16 Tapping screws.

Lead wires for LED circuit

Ribs of Gear assembly

[3] -3. Grip assembly

DISASSEMBLING

Refer to Fig. 22 for the components of Grip assembly.

(1)Remove Retaining ring (INT) R-15 with 1R291.

(2)Remove M8x65 Hex bolt from Pole complete by turning the bolt counterclockwise.

(3)Remove Arm R complete from Arm L.

(4)Remove Arm L from Pole complete by turning the arm clockwise.

Note: Grip assembly for DHP481 has M5x10 Thumb screw and M5 Hex nut, and therefore, the grip is different from that of DDF481. Loosening the thumb screw will cause the M5 Hex nut to be removed from Arm L. Be careful about the loss of the M5 Hex nut when DHP481 is disassembled.

ASSEMBLING

Fig. 22

The components of Grip assembly

 

Pole complete

Arm L

Arm R complete

Retaining ring

 

 

(INT) R-15

M5x10

 

 

Thumb screw

M5 Hex nut

M8x65 Hex bolt

(for DHP481 only)

(for DHP481 only)

(1)Screw Pole complete in Arm L to the full.

(2)Insert the rod of Arm complete R into the hole of Arm L. (Fig. 23)

(3)Connect the male thread of M8x65 Hex bolt with the female thread of Pole complete as drawn in Fig. 24.

(4)Set Retaining ring (INT) R-15 in place of Arm R complete.

Fig. 23

Hole of Arm L Rod of Arm R complete

Fig. 24

Five to six turns of the thread of M8x65 Hex bolt must be connected with Pole complete before DDF481/ DHP481 is setting in place.

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Image 6
Makita DDF481 dimensions Grip assembly
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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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