background image

Apply the following grease to the portions designated with the black triangle to protect parts and product from unusual 

abrasion.

[1] NECESSARY REPAIRING TOOLS

Code No.

Description

Use for

1R035

Bearing Setting Plate

Supporting Spur gear 93, when removing Spindle with Arbor press

[2] LUBRICATION

Fig. 1

Item No.

Description

Grease

Makita

grease N

No.2

Amount

Portion to lubricate

27A

24

23

Flat washer 8

Bearing box

Crank plate B

Under cover

DC motor

a

b

27A

27   viewed from

       Under cover side

Crank plate A

23

Spindle

The drum portion which is accepted by Bearing box 
The drum portion which is accepted by Under cover

24

Spur gear 93

Teeth portion for smooth engaging with DC motor’s gear

27   viewed from

       Front grip side

Both side where Crank plate A and Crank plate B contact 

27A

Spacer of Blade

a

a little

a little

b

3 g

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

R

epair

P  

2

/ 1

3

Summary of Contents for UH422D

Page 1: ... charger DC18RC for DUH481 483 521 523 The subject models are 14 4V 18V cordless hedge trimmers Their main features are Anti vibration structure User replaceable blade These products are compatible with the batteries and chargers in the list below DUH483 523 UH422D 482D 522D BL1811G UH520D BL1411G DC18WA DUH481 521 BL1415 BL1415N A BL1430 A BL1440 DC18RC DC18SD DC24SC DC18SE DC18RD DC18SF Model No...

Page 2: ...on to lubricate 27A 24 23 Flat washer 8 Bearing box Crank plate B Under cover DC motor a b 27A 27 viewed from Under cover side Crank plate A 23 Spindle The drum portion which is accepted by Bearing box The drum portion which is accepted by Under cover 24 Spur gear 93 Teeth portion for smooth engaging with DC motor s gear 27 viewed from Front grip side Both side where Crank plate A and Crank plate ...

Page 3: ...Shear blade complete to the machine as drawn in Fig 3 Flat washer 8 3 If Nylon sleeves are left in the holes of Spur gear section remove them after disassembly of Super gear section Flat washer 8 Mating line of Housing L and Housing R 2 Turn Spur gear 93 until its holes come on the mating line of Housing set Flat washer 8 Spindle on the projected side of Super gear 93 to Under cover Also refer to ...

Page 4: ...And loosen two M5x25 Pan head screws on the joints of Front grip 1 Unscrewing six 3x16 Tapping screws and one M4x65 Pan head screw separate Housing R from Housing L 2 Separate Motor housing section from Housing L 2 Pulling Front grip toward the direction designated with arrow remove it from the holes on the both side of Housing set 3 Push Front grip along the grooves on the both side of Housing se...

Page 5: ...etainer from Motor housing L 3 Separate DC Motor from Bearing box complete DC Motor Motor Housing L Bearing box complete DC Motor DC Motor 1 While facing M3x4 Hex socket head bolt to Motor housing L side mount DC Motor to Bearing box complete M3x4 Hex socket head bolt M3x4 Hex socket head bolt 2 While fitting M3x4 Hex socket head bolt to Rib on Motor housing L assemble DC Motor to Motor housing L ...

Page 6: ... as drawn in Fig 9 4 Assemble Front grip section as drawn in Fig 10 Motor housing section Housing L Joint of Switch lever B 1 Align the joints of Switch lever B and Front grip in line for smooth moving in the grooves on Housing set 2 Pulling Front grip section to both side fit the Joints of Switch lever B and Front grip to the grooves on Housing set 3 Pulling Front grip section to both side fit Fr...

Page 7: ...ear 93 because Crank pin can not be fit to Spur gear 93 precisely Press fit Spindle from the depressed side of Spur gear 93 so that Shear blade complete is assembled to Spur gear 93 precisely CORRECT WRONG 1 Disassemble Shear blade complete and then remove Spur gear section as drawn in Fig 2 2 Disassemble Spur gear 93 as drawn in Fig 11 Spindle Spindle Spur gear 93 1 Put Spur gear section on 1R035...

Page 8: ...Assemble Front grip as drawn in Fig 14 2 Assemble Protector to Front grip Refer to Fig 4 Compression spring 5 1 While hooking the claw of Switch lever B to Front grip assemble Front grip to Switch lever B 2 Push Switch lever B toward Front grip and fit the bosses of Switch lever B to the holes of Front grip Claw Boss of Switch lever B Front grip Switch lever B Front grip Boss of Switch lever B Hol...

Page 9: ...rawn in Fig 4 2 Remove Housing R as drawn in Fig 5 3 Switch arm is removed as drawn in Fig 15 Switch arm has to be assembled to Housing L so that it can push ON OFF button of Switch to link with Switch lever B s action See Fig 16 Switch arm Switch ASSEMBLING Switch ON OFF Button Switch arm Repair P 9 13 ...

Page 10: ...wires Line filter Switch in rear grip COM Switch lever B side DC motor to DC motor to Terminal to Switch in Front grip Controller Controller Terminal Model No Red DUH483 523 DUH481 521 Red dot mark White lead wire is used for some countries Line filter to AS Terminal AS Switch in front grip to Switch in Rear grip P 10 13 Line filter is not used for some countries Line filter is not used for some c...

Page 11: ...roller Terminal Red BL1811G 18V to AS Terminal Switch in front grip Red dot mark LED Warning lamp for battery Line filter White lead wire is used for some countries Line filter is not used for some countries AS Circuit diagram cont P 11 13 COM Model No Power source Battery UH422D 482D 522D UH520D BL1411G 14 4V LED Warning lamp for battery to Switch in Front grip to Switch in Rear grip Line filter ...

Page 12: ...ng L side Controller side DC motor Controller Rib A Pass Controller s Lead wires 6 pcs between Rib A and Rib B to prevent them from being put on the Ribs Face black Lead wire to Controller side and set DC motor to Motor housing L Rib B Motor housing L Lead wire red between Controller and DC motor has to be routed between Boss and inner wall of Motor housing L Boss Tape for bundling Lead wires Bear...

Page 13: ... Receptacle Housing L side Wiring of LED warning lamp for battery Rib A LED Lamp Rib C Groove Face the projected portion of LED Lamp to Front grip side Boss Put LED Lamp s Lead wires into groove Put the following Lead wires between Rib A and Boss Put Lead wires between Rib B and Rib C Wiring to Terminal Flag connectors have to be connected so that their lead wires are passed over the center of Ter...

Reviews: