Makita GA4030, GA5030 Necessary Repairing Tools, Armature, Ball bearing 629DDW, Spiral Bevel Gear

Page 2

Repair

P 2/ 13

CAUTION: Unplug the tool and remove the following parts for safety before repair/ maintenance in accordance with the instruction manual!

Depressed center wheel, Inner flange, Lock nut, Wheel cover

[1] NECESSARY REPAIRING TOOLS

Code No.

Description

Use for

 

 

 

1R004

Retaining ring S pliers ST-2

Removing / Installing Ring spring 11

 

 

 

1R005

Retaining ring R pliers RT-2N

Removing / Installing Retaining ring R-32

 

 

 

1R006

Retaining ring R pliers RT-2E

Removing / Installing Retaining ring R-26

 

 

 

1R031

Bearing setting pipe 28-20.2

Removing Spindle from Spiral bevel gear 37

 

 

 

1R246

Round bar for arbor 18-100

Removing Ball bearing 6201DDW when difficult to remove by hand

1R268

Spring pin extractor M3

Disassembling Shaft lock mechanism

 

 

 

1R269

Bearing extractor (small)

Removing Ball bearing 696ZZ from Spindle

 

 

 

1R281

Round bar for arbor 7-50

Removing Switch lever from Switch knob

 

 

 

[2] LUBRICATION

Apply the following lubricants to the designated portions to protect parts and product from unusual abrasion.

Item No.

Description

 

Portion to lubricate

 

Lubricant

Amount

18

Gear housing

Gear room

 

Makita grease SG No. 0

6.9g

9

O-ring 26

inside

 

 

a little

Fig. 1

 

18

Spiral bevel gear 10

9

Makita grease SG No.0

 

 

 

 

M6 Hex nut

 

 

 

 

[3] DISASSEMBLY/ASSEMBLY

 

 

 

 

[3] -1. Armature, Ball bearing 629DDW, Spiral Bevel Gear 10

 

 

 

DISASSEMBLING

(1)Remove Rear cover by loosening 4x18 Tapping screw.

(2)Move Carbon brushes away from Armature’s commutator to prevent scratching.

Fig. 2

Shift Spiral spring from Carbon brush top.

Move Carbon brush away from commutator by pulling it up. No need to remove.

Brush holder

Rear cover

4x18 Tapping screw

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Contents Standard equipment SpecificationOptional accessories Necessary Repairing Tools Armature, Ball bearing 629DDW, Spiral Bevel GearRepair Armature, Ball bearing 629DDW, Spiral bevel gear 10DISASSEMBLY/ASSEMBLY Refer to Figs to Spiral bevel gearSpiral Bevel Gear 37, Ball Bearing 6201DDW DISASSEMBLY/ASSEMBLY Switch mechanism Switch lever and Switch knob Shaft Lock Mechanism Plastic dustField Wiring to Switch Circuit diagramWiring diagram Wiring of Field lead wires Motor housing13/13
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Manual 28 pages 32.49 Kb

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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