Repair

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[3] DISASSEMBLY/ASSEMBLY

[3] -1. Armature, Ball bearing 629DDW, Spiral bevel gear 10 (cont.)

DISASSEMBLING

(3)Remove Armature together with Gear housing from Motor housing as illustrated in Figs. 3,and 4.

(4)Remove Armature from Gear housing as illustrated in Figs. 5 and 6.

Fig. 3

M4x14

Bearing box

Pan head screw (4 pcs.)

 

Remove M4x14 Pan head screw (4pcs.) with which Bearing box is fastened to Gear housing.

Gear housing

Fig. 4

After removing 4x22 Tapping screws (4pcs.), separate Gear housing together with Armature as illustrated below.

 

Armature

Motor housing

 

 

4x22

 

 

Tapping

 

 

screw (4 pcs.)

 

 

 

Gear housing

Fig. 5

 

Fig. 6

M6 Hex nut

Turn M6 Hex nut counterclockwise with a wrench to remove it.

Pull off Armature while supporting Spiral bevel gear 10 by hand so as not to drop off from Gear housing.

Armature

Spiral bevel gear 10

Note: If difficult to remove Armature due to galling and seizing of Spiral bevel gear 10 in Gear housing:

1.Spray the lubricant between Spiral bevel gear 10 and Armature shaft.

2.Cover Spiral bevel 10 with a cloth, and hold Spiral bevel gear 10 over the cloth with water pump pliers.

3.Remove Spiral bevel gear 10 by turning the water pump pliers counterclockwise.

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Makita GA5030, GA4530, GA4030 specifications Repair, Armature, Ball bearing 629DDW, Spiral bevel gear 10
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GA4030, GA4530, GA5030 specifications

Makita is renowned for its high-performance power tools, and the GA5030, GA4530, and GA4030 angle grinders are no exception. These models exemplify Makita's commitment to innovation, durability, and user-friendly design, making them ideal for both professional tradespeople and DIY enthusiasts.

The Makita GA5030 is a compact and versatile angle grinder equipped with a powerful 5-inch wheel. One of its standout features is its lightweight design, which minimizes fatigue during prolonged use. The GA5030 boasts an 8.5-amp motor capable of delivering up to 11,000 RPM, providing swift and efficient material removal. This model also integrates a labrynth construction that seals and protects the motor and bearings from dust and debris, enhancing the tool’s longevity. Additionally, its ergonomic rubberized grip ensures comfort and control, making it suitable for a variety of applications, from metalworking to masonry.

Moving onto the GA4530, this 4.5-inch angle grinder balances power and portability. Like the GA5030, it is powered by a robust 7.5-amp motor that generates a no-load speed of 10,000 RPM. Its compact design allows for easier handling in tight spaces, making it ideal for both home projects and professional jobs. An important feature of the GA4530 is the protective cover that can be adjusted without tools, allowing for quick changes based on the job at hand. Moreover, this model includes an automatic shut-off carbon brush system that extends the life of the motor, ensuring lasting performance.

Lastly, the GA4030 serves as an excellent choice for those seeking a smaller, yet powerful tool. This 4-inch angle grinder is equipped with a 6.0-amp motor capable of reaching speeds up to 10,000 RPM. The GA4030’s slim body design allows for easy handling, while its rubberized grip provides added comfort and reduces vibrations. This model also features a metal gear housing for increased durability, making it suitable for heavy-duty applications.

In summary, the Makita GA5030, GA4530, and GA4030 are outstanding angle grinders, each offering unique features and capabilities to cater to various needs. With their powerful motors, durable construction, and user-friendly designs, these tools reflect Makita’s high standards in professional-grade equipment. Whether you are a seasoned professional or a weekend DIYer, these grinders will undoubtedly enhance your workflow and deliver exceptional results.
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