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P 2/ 8

R

epair

[3] DISASSEMBLY/ASSEMBLY

[3] -1. Armature

[1] NECESSARY REPAIRING TOOLS

CAUTION: Repair the machine in accordance with “Instruction  manual” or “Safety instructions”.

Code No.

Description

Use for

1R139

Drill chuck extractor

locking Spindle when removing Drill chuck S-13

1R223

Torque wrench shaft 20-90N

m

removing Drill chuck S-13

removing damaged Drill chuck S-13 

removing Ball bearings 608ZZ and 6202DDW
removing/ assembling Retaining ring S-14
removing/ assembling Bearing retainer 23-36

1R224

Ratchet head 12.7 (for 1R223)

1R269
1R291

Retaining ring S and R pliers

1R298

Hex. bar 10 with Square socket

1R340

Bearing retainer wrench

781024-2 Wrench 43

Bearing extractor

[2] LUBRICATION

DISASSEMBLING

Apply 

Makita grease FA No.2

 to the following portions designated with the black triangle to protect parts and product

from unusual abrasion.

Fig. 1

Item No.

Description

Amount

5g approx.
5g approx.

Portion to lubricate

Gear housing complete

1. Remove Carbon brushes.

2. Remove four 5x40 Tapping screws.

Carbon brushes

5x40 Tapping 

screws (4 pcs.)

3. Separate Gear housing section

    from the machine.

4. Pull off Armature from 

    Motor housing complete.

5. Remove Ball bearings 608ZZ from the both side of

    Armature assembly using with 1R269. 

    And then, remove Insulation washer.

13

13

9

9

Gear complete 7-41

Teeth portions for smooth engaging

Teeth portions for smooth engaging

Spur gear 47

Ball bearing 608ZZ

Insulation washer

Disassemble Armature as drawn in 

Fig. 2

.

Fig. 2

Summary of Contents for Maktec MT622

Page 1: ...es D handle PRODUCT P 1 8 Weight according to EPTA Procedure 01 2003 kg lbs 2 7 6 0 Double insulation Protection against electric shock Yes Soft grip No Variable speed control by trigger 2 0 6 6 Power supply cord m ft No load speed minˉ rpm 600 Rotation reversing facility Yes Rocker switch MT622 Specification Model 240 3 3 50 60 750 550 Continuous Rating W Voltage V Cycle Hz Input Output 350 Max O...

Page 2: ...er wrench 781024 2 Wrench 43 Bearing extractor 2 LUBRICATION DISASSEMBLING Apply Makita grease FA No 2 to the following portions designated with the black triangle to protect parts and product from unusual abrasion Fig 1 Item No Description Amount 5g approx 5g approx Portion to lubricate Gear housing complete 1 Remove Carbon brushes 2 Remove four 5x40 Tapping screws Carbon brushes 5x40 Tapping scr...

Page 3: ...from the machine as drawn in Fig 3 or Fig 3A 2 In case of the damaged Drill chuck use Wrench 43 781024 2 to remove the damaged one as drawn in Fig 3A 1R139 1 Secure a hex wrench in Drill chuck firmly 2 Hold 1R139 firmly in vise then set the machine to 1R139 by fitting the flat portion of Spindle to the groove of 1R139 3 Attach a pipe to a hex wrench and then turn the pipe counterclockwise to remov...

Page 4: ... 41 into Ball bearing 626ZZ temporarily Spur gear 47 5 While tilting shaft of Gear complete 7 41 tap the edge of Gear housing complete with a plastic hammer to remove Ball bearing 626ZZ from Gear housing complete 6 Remove Ball bearing 6202DDW from Spindle with 1R269 Ring 15 Gear complete 7 41 Pin3 Gasket Ball bearing 626ZZ Spindle 1R269 1 Remove Drill chuck from the machine as drawn in Fig 3 3A 2 ...

Page 5: ...ng complete 2 Pressfit Ball bearing 6202DDW to Spindle 3 Insert Ring 15 to Spindle Then mount Key 5 to the groove of Spindle Spindle Key 5 4 Assemble Spindle section to Gear housing complete Then assemble Spur gear 47 to Spindle while fitting its cut portion to Key 5 And then secure the spur gear with Retaining ring S 14 5 Insert Gear complete 7 41 into Ball bearing 626LLB with Spur gear 47 engage...

Page 6: ...countries Strain relief 18 AWG Circuit of Switch 3 2 Forward mode conduct 2 6 3 5 Reverse mode conduct 2 3 5 6 5 6 Field Switch Resistance Non insulated sleeve Line filter If it is used Two holes type Line filter is used for low voltage areas One hole type Line filter is used for high voltage areas Closed end splice Closed end splice is used for some countries Terminal block Closed end splice Powe...

Page 7: ...o that these wires can be easily connected to Switch without touching to the edge of Opening 2 Fix these lead wires in Lead wire holders Field Wire connected portion Lead wire holder edge of Opening Lead wire holder Assemble Field to Motor housing while facing the wire connected portion to Cap side Setting and Wiring of Field Lead wire P 7 8 Cap ...

Page 8: ... Closed end splice Put Closed end splice to the place here Be careful not to put any lead wires under Terminal block Inner wall Rib Switch Wiring through Line filter Pass Field lead wires orange purple through Line filter as drawn below And put it to the place as drawn right Line filter Put Field lead wires between Rib and the inner wall of Switch handle L Wiring in Switch handle L with Radio inte...

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