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[4] DISASSEMBLY/ASSEMBLY

[4]-1. Armature, Small spiral bevel gear, Ball bearing 6301DDW

DISASSEMBLING

5x35 Tapping screw

(4pcs.)

(1) Disassemble Armature and Spiral bevel gear (small) as illustrated in 

Figs. 2

 and 

3

(2) Disassemble Ball bearing 6301DDW as illustrated in 

Figs. 4 and 5

.  

M6x22 Hex socket head bolt (4pcs.)

Brush holder cap

Carbon brush

Armature

Turn Armature counterclockwise while

holding M8 Hex nut with Wrench 13.

M8 Hex nut can be removed.

Remove Carbon brushes. And then

remove 5x35 Tapping screws.

Remove Gear housing complete

together with Armature.

Remove Bearing box and M6x22

Hex socket head bolts. 

Wrench 13 for locking M8 Hex nut 

M8 Hex nut 

Pull off Armature while

holding Small spiral bevel gear. 

Small spiral

bevel gear

Armature

Fig. 2

Fig. 3

Remove Retaining ring R-42 with 1R005,

then remove Flat washer 20.

Fig. 4

Fig. 5

Retaining ring

R-42

Flat washer 20

Ball bearing 6301DDW

M8 Hex nut

Ball bearing 6301DDW

Felt ring 18 (a component of Gear housing complete)

Rubber ring 38

Gear housing complete

Set Armature and Small spiral bevel gear to Gear housing complete.

And set M8 hex nut in place temporarily by reversing the step of

Fig. 3.

 

Tap the end of Gear housing complete with a plastic hammer.

Ball bearing 6301DDW can be removed from Rubber ring 38 in

Gear housing complete. Felt ring 18 falls off at that time. 

Gear housing complete

Note

: If the above work is very difficult

          due to the seizing of Small spiral

          bevel gear, spray a lubricant

          between Armature shaft and Small

          spiral bevel gear. And then turn

          and pull Armature while holding

          Small spiral bevel gear with pliers

          and a cloth.    

Small spiral bevel gear

Содержание GA7030R

Страница 1: ...00 2 600 2 600 2 600 1 500 1 000 1 800 1 800 1 800 3 700 3 700 4 900 4 900 4 900 Current A GA7030R GA9030R GA7040R GA9040R Angle Grinders 180mm 7 230mm 9 Soft start feature Anti restart function Double insulation Net weight 3 kg lbs Power supply cord m ft No load speed min 1 rpm Wheel size mm Diameter Specification Model No GA7030R GA7040R GA9030R GA9040R Hole diameter 6 600 8 500 Yes Yes Yes 180 ...

Страница 2: ...sher portion where Large spiral bevel gear contacts portion where Large spiral bevel gear contacts portion where Ball bearing 6203DDW contacts 44 Bearing box Large spiral bevel gear 48 53 Ball bearing 6000LLB M15 23 nut Cup washer 20 48 Flat washer 15 53 Spindle complete Drum portion where Large spiral bevel gear contacts 61g a little a little Molybdenum desulfide Makita grease SG No 0 3 DIFFERENC...

Страница 3: ...ar Small spiral bevel gear Armature Fig 2 Fig 3 Remove Retaining ring R 42 with 1R005 then remove Flat washer 20 Fig 4 Fig 5 Retaining ring R 42 Flat washer 20 Ball bearing 6301DDW M8 Hex nut Ball bearing 6301DDW Felt ring 18 a component of Gear housing complete Rubber ring 38 Gear housing complete Set Armature and Small spiral bevel gear to Gear housing complete And set M8 hex nut in place tempor...

Страница 4: ...nut 1R269 Ball bearing 6301DDW Ball bearing 6200DDW Small spiral bevel gear Felt ring 18 V block Felt top portion Steel cup portion 1R252 Cross section of the bottom of the bearing room 1R252 Rubber ring 38 Felt ring 18 Flat washer 0 5mm Put a Flat washer illustrated above temporarily on Felt ring 18 Then press down the Flat washer with arbor press and 1R252 carefully to move the Flat washer to on...

Страница 5: ...e pull off Armature Retaining ring R 42 Flat washer 20 Make sure that Rubber ring 38 is set in place Refer to Fig 7 Putting Flat washer 20 on Ball bearing 6301DDW secure them with Retaining ring R 42 Rubber ring 38 1R005 Small spiral bevel gear M8 Hex nut Armature Ball bearing 6301DDW Insert Armature shaft through Small spiral bevel gear and Ball bearing 6301DDW in Gear housing Set M8 Hex nut to A...

Страница 6: ...g 10 Fig 11 Fig 12A Fig 12B 1R224 Lock washer Bearing retainer 50 Large spiral bevel gear M15 23 Nut 1R223 M15 23 Nut Spindle complete Two Cup spring 20 Lock washer Large spiral bevel gear and Flat washer 15 can be removed Remove Spindle complete with arbor press Remove Bearing retainer 50 from Bearing box by loosening three M5x16 Pan head screws If the work mentioned in Fig 12A is not successful ...

Страница 7: ...e complete in place carefully with Arbor press Clamp the flat portions of Spindle complete with vise and assemble the components of Torque limiter to Spindle 1R204 1R224 M15 23 Nut 1R223 Pre setting 1R223 to 55 60 N m fastening torque tighten M15 23 Circular nut by turning 1R223 counterclockwise Fig 13 Fig 14 1 Align the center of two Cup springs 20 with that of Spindle as illustrated below when t...

Страница 8: ...m Pin cap while paying attention that Pin cap would not be slung by Compression spring 12 Shoulder pin 5 Pin cap Note Do not reuse Pin cap Removal of Shoulder pin 5 damages the inside surface of Pin cap producing plastic dust Pin cap Compression spring 12 Pin cap Compression spring 12 Fig 16 1 Be sure to use a new Pin cap for replacement and to remove all the plastic dust on Shoulder pin 5 Fig 17 ...

Страница 9: ...d in Fig 22 4 Assemble Handle complete R to Handle complete L Refer to Fig 19 Motor housing complete After assembling Vibration proof rubber to Motor housing align the center line of Protrusion of Vibration proof rubber to the center line of depression of Motor housing Vibration proof rubber Handle Complete R Handle complete L Remove Handle complete L Nylon washer 89 and Vibration proof rubber can...

Страница 10: ...de White Color index of lead wires sheath Black Red Motor housing viewed from Commutator side Noise suppressor if used Do not pinch Lead wires between Switch and inner wall of Handle set Wiring in Handle complete L Fig D 2 Hole Tenon Pin Mount Power Warning Lamp by fitting the tenon and the pin into the holes on Handle set L Power Warning lamp Put Lead wires of power supply cord between Switch and...

Страница 11: ... in Motor housing on Commutator side Put Connecters here on MaKita logo side Guide out Field lead wire black by this Hook Guide out Field lead wire white by this Hook Fix Field lead wire white with these Lead wire holders Fix Field lead wires black white with these Lead wire holders ...

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