Makita GA4034 Technical Information Download Page 3

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[3] DISASSEMBLY/ASSEMBLY

[3]-1. Armature, Ball bearing 629DDW, Ball bearing 607LLB, Spiral bevel gear 10 (cont.)

DISASSEMBLING

Fig. 4

Fig. 5

Wrench 10

M6 Hex nut 

Gear housing

Spiral bevel

gear 10

Spiral bevel

gear 10

Armature

Gear housing

Armature

Pull out Armature from Gear housing

by hand while holding Spiral bevel

gear 10 carefully not to be dropped.

(3) Remove M6 Hex nut on Spiral bevel gear 10. (

Fig. 4

)

(4) Remove Armature from Gear housing. (

Fig. 5

)  

Guide plate

1R006

Fig. 6

Fig. 7

(5) Ball bearing 629DDW can be removed as illustrated in 

Figs. 6 and 7

.

Note

: If the work mentioned in 

Fig. 7 

is not successful, do the step mentioned in 

Fig. 8.

(6) Ball bearing 607LLB on Commutator end can be removed. (

Fig. 9

)     

 

  

Strike Gear housing against work table.

Note: 

Cover the work table with something soft to avoid

           the damage on Gear housing before disassembling.

 

Ball bearing

629DDW 

Ball bearing 629DDW

Retaining ring R-26

Remove Retaining ring

R-26 with 1R006.

Locking M6 Hex nut with Wrench 10,

turn Armature counterclockwise by hand. 

Note

: If the above work is very difficult

          due to the seizing of Spiral bevel

          gear 10, spray a lubricant between

          Armature shaft and Spiral bevel

          gear 10, then turn and pull Armature

          while holding Spiral bevel gear 10

          with pliers and a cloth.     

Spiral bevel

gear 10

M6 Hex nut 

Set Armature, Spiral bevel gear 10 and M6 Hex nut

in place temporarily.

Retaining ring R-26 remains removed. 

(

Refer to 

Fig. 6.

)  

Tap the edge of Gear housing

with plastic hammer.

Ball bearing 629DDW comes

with Armature.

Fig. 8

Fig. 9

Ball bearing 607LLB

1R269

Remove Labyrinth

rubber ring 19. 

Remove Ball bearing

607LLB with 1R269.

Remove Insulation washer.

Labyrinth

rubber ring 19

Insulation

washer

Summary of Contents for GA4034

Page 1: ...1 rpm Diameter Hole diameter Wheel size mm Protection against electric shock Power supply cord m ft Net weight kg lbs GA4034 100 4 Brazil Australia 2 0 6 6 Other countries 2 5 8 2 1 8 4 0 1 9 4 2 11 0...

Page 2: ...tion to lubricate Lubricant Amount 9 18 Makita grease SG No 0 7g a little 3 DISASSEMBLY ASSEMBLY 3 1 Armature Ball bearing 629DDW Ball bearing 607DDW Spiral bevel gear 10 DISASSEMBLING 4x22 Tapping sc...

Page 3: ...Note Cover the work table with something soft to avoid the damage on Gear housing before disassembling Ball bearing 629DDW Ball bearing 629DDW Retaining ring R 26 Remove Retaining ring R 26 with 1R00...

Page 4: ...g 3 Remove Ball bearing 696ZZ with 1R269 and then separate Ring spring 11 from Spindle with 1R004 Fig 12 2 Spindle Spiral bevel gear 37 and Labyrinth ring can be removed as illustrated in Fig 13 3 Rem...

Page 5: ...031 and assemble Spindle Labyrinth ring works as a shield against dust If Labyrinth ring is assembled to Spindle facing the groove surface to the upper side it does not work as a shield against dust f...

Page 6: ...ages the inside surface of Pin cap producing plastic dust Pin cap Pin cap Compression spring 8 1R268 Shaft lock can be disassembled as illustrated in Figs 15 and 16 1R350 Fig 16 Fig 15 ASSEMBLING Fig...

Page 7: ...nd two 4x70 Tapping screws Fig 19 assemble Gear housing to Motor housing temporarily 2 Tap the front portion of Gear housing with plastic hammer until Field moves half from the original position Fig 2...

Page 8: ...eath Black Brown Blue AC DC Switch models for Keppel corporation limited in Singapore etc Fig D 2 Strain relief Brown lead wire is used for some countries Blue lead wire is used for some countries Noi...

Page 9: ...holder to Switch Fig D 3 AC DC Switch models for Keppel comporation limited in Singapore etc to Switch Field lead wire red Field lead wire red Field lead wire red Field lead wire black Field lead wir...

Page 10: ...or housing Motor housing Right side view Motor housing Belly side view Rib A Rib Switch Power supply cord Rib B Field lead wires red black have to be tight in Motor housing Brush holder Pass Field lea...

Page 11: ...as not to contact Rib B Rib B Rib A Switch Power supply cord Field lead wires red black have to be tight in Motor housing Motor housing Pass Field lead wire black by Rib on the Brush holder side Motor...

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