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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 Small spiral bevel gear 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 

Small spiral bevel gear

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.

Summary of Contents for GA7020R

Page 1: ...2 Vibration absorbing side grip Toolless quick adjustable wheel cover Toolless lock nut Dust cover attachment Plastic carrying case GA7020R Accessories for 180mm angle grinder GA9020R Accessories for...

Page 2: ...ring setting tool B Item No Apply the following lubricant to protect parts and product from unusual abrasion Description Portion to lubricate Amount Lubricant 5 Gear housing complete Gear room 5 not g...

Page 3: ...r 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 Small spi...

Page 4: ...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...

Page 5: ...l off Armature Retaining ring INT 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 INT R...

Page 6: ...retainer 50 Slotted screwdriver Enlarging the clearance of Ring spring 11 with 1R004 lift up the opposite side with slotted screwdriver Ring spring 11 can be removed Fig 10 Fig 11R Correct setting The...

Page 7: ...g 6203DDW and Spindle as illustrated in Fig 14 2 Assemble large spiral bevel gear to Spindle as illustrated in Fig 15 Bearing retainer 50 M5x16 Pan head screw 3pcs Fig 13A Fig 13B Fig 14 If it is diff...

Page 8: ...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...

Page 9: ...de Bumper side White Color index of lead wires sheath Black Red Motor housing viewed from Commutator side Fix Field lead wire white with these Lead wire holders Fix Field lead wires black white with t...

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