Makita BUH550 Manual

PRODUCT

CONCEPT AND MAIN APPLICATIONS

P1/ 9

Specification

Standard equipment

Optional accessories

Note: The standard equipment for the tool shown above may vary by country.

Model No.

Description

BUH550/ BUH650

Cordless Hedge Trimmers 550, 650mm (21-5/8, 25-1/2")

Dimensions: mm (")

Width (W)

Height (H)

Length (L) 1,150 (45-1/4)1,070 (42)

BUH650BUH550

220 (8-5/8)

190 (7-1/2)

Battery

Charging time (approx.): min.

Soft start

Weight according to

EPTA-Procedure 01/2003*2: kg (lbs)

Capacity: Ah

Cell

Voltage: V 36V

No load speed: min-1=spm*1

650 (25-1/2)550 (21-5/8)

BUH650BUH550

Blade length: mm (")

Yes

Electric brake Yes

5.2 (11.5)5.1 (11.2)

2.6

Li-ion

320

22 with DC36RA

1,000 - 1,800

Max output (W)

Also see the product variation list above.

Blade cover .................................................. 1

Battery BL3626

Fast charger DC36RA

Battery adaptor BAP36N

Models BUH550 and BUH650 are cordless hedge trimmers powered

by 36V/ 2.6Ah Li-ion battery.

Their main benefits are:

Environment-friendly with zero emission and minimum noise pollution

Almost zero-maintenance cost with rechargeable Li-ion battery

5 position rotating rear handle

makes vertical and angled trimming

easier and faster.

Well balanced tool design

for reduced stress on the arm and hand

holding loop handle

These products will be available in the following variations:

BUH550RDE

BUH550RDEP

BUH550Z

BUH550RD

BUH550RDP

BUH650RDE

BUH650RDEP

BUH650Z

BUH650RD

BUH650RDP BL3626

DC36RA

Model No. type quantity Charger

Battery

cover

BAP36N

Battery

adapter

BL3626 DC36RA1 No

Battery

All models also include the accessories listed below in "Standard equipment".

Model

Specification

*1: spm= strokes per minute

*2: with battery, shear blade assembly

Shear blade assembly set

Blade cover

Arm band complete set

Chip receiver assembly set

[Model BUH550]

TECHNICAL INFORMATION

P2/ 9

Repair

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

[1] NECESSARY REPAIRING TOOLS

[2] LUBRICATIONS

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Shear Blade Assembly, Gear Complete

Fig. 1

Fig. 2

Code No. Description Use for

1R269 Bearing extractor Removing Ball bearings

Item No.

Apply the following lubricant to the pointed area with the triangles to protect parts and product from unusual abrasion.

Description Lubricant AmountPortion to lubricate

DISASSEMBLING

(1) Disassemble Shear blade assembly. (Figs. 2, 3)

1. Set the machine upside-down and

loosen four M4x20 Pan head screws

while holding Front grip.

And then, remove Under cover and Plate.

2. Insert a slotted screwdriver into the the center slot on Gear complete,

then align the crank of Gear complete with the elliptical hole of

Shear blade assembly.

35 Gear housing complete Gear room where 44 Gear complete rotates

44 Gear complete Crank portion for Shear blade assembly

Rivet 2Handle L complete

6a little

Makita grease

N No.2

Under cover

M4x20 Pan

head screws

(4pcs.)

Front grip Crank of Gear completeCenter slot on Gear complete

Shear blade assembly

Plate

ISOFLEX NB52

P3/ 9

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Shear Blade Assembly, Gear Complete (cont.)

DISASSEMBLING

M5x25

Pan head screws (2pcs.)

with Sleeves 5 in the holes

4. Remove Gear complete by tapping

the specific part of Gear housing

complete with plastic hammer as

drawn below.

5. Remove 2 pcs. of Ball bearing

608ZZ from the both sides of

Gear complete.

6. Remove 2 pcs. of

Flat washer 8 from

the both sides of

Gear complete.

3. Loosen two M5x25 Pan head screws and separate Shear blade assembly from the machine.

Note: The screws remain in the holes of Shear blade assembly to hold Sleeves 5 in the blade,

if the same blade is reassembled to the machine.

M5x25 Pan head screws (2pcs.)

with Sleeves 5 in the holes

Shear blade

assembly

Fig. 3

Fig. 4

1R269

Ball bearing 608ZZ

Flat washer 8

(2) Disassemble Gear complete. (Fig.4)

Crank side Reverse side

P4/ 9

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-1. Shear Blade Assembly, Gear Complete (cont.)

M5x25 Pan head screws (2pcs.)

Shear blade

assembly

Guide plate

Sleeve 5 (1pc. each) in the holes of

Shear blade assembly

Fig. 5

(1) Assemble Flat washer 8 and Ball bearing 608ZZ to the both sides of Gear complete. And then, mount Gear complete

to the machine. (Fig. 4)

(2) Assemble Shear blade assembly. (Fig. 5)

ASSEMBLING

1. Slide Guide plate on Shear blade assembly

to align the holes for M5x25 Pan head screws

with Sleeves 5.

3. Align Crank section of Gear complete to

the elliptical hole of Shear blade assembly

as drawn below. And then, secure Shear

blade assembly by tightening M5x25 Pan

head screws.

4. Make sure that the two shear blades can reciprocate

in order by turning the crank of Gear complete with

slotted screwdriver as drawn below.

2. Pass M5x25 Pan head screws through Sleeves 5

in the holes of Shear blade assembly.

M5x25

Pan head screws

(2pcs.)

[3]-2. Armature, Switch

Fig. 6

DISASSEMBLING

Holder cap covers Gear housing complete

1. Remove Holder cap covers

with Slotted screwdriver.

And remove Carbon brushes.

2. Separate Gear housing complete by loosening six 4x25 Tapping screws.

Gear housing complete is separated from Housing set.

Armature comes with Gear housing complete.

(1) Disassemble Shear blade assembly. (Figs. 2, 3)

(2) Disassemble Gear complete. (Fig.4)

(3) Remove Carbon brushes. And separate Gear housing complete. (Fig. 6)

4x25 Tapping screws (6pcs.)

P5/ 9

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-2. Armature, Switch (cont.)

Fig. 7

DISASSEMBLING

Armature

1. Pull off Armature from

Gear housing complete.

(3) Remove Armature and Ball bearings. (Fig. 7)

Ball bearing

6000ZZ

Ball bearing

607ZZ

1R269

2. Remove Ball bearing 6000ZZ and 607ZZ with 1R269.

1. Remove Switch lever B and

Front grip.

2. Remove Knob by loosening

4x18 Tapping screw.

3. Remove nine 4x18 Tapping screws and Handle R complete.

Main switch and Handle switch can be replaced.

4. Remove eight 4x18 Tapping screws and Housing R complete.

Front handle switch can be replaced.

4x18 Tapping screw

Fig. 8

Knob

Switch lever B

Front grip

Front handle

switch

Handle switch

Main switch

Handle R

complete Housing R

complete

Handle L

complete Housing L

complete

(4) Replace switches. (Fig. 8)

4x18 Tapping

screws (9 pcs.)

4x18 Tapping

screws (8 pcs.)

Note: Lock lever is removed

together with Handle switch.

P6/ 9

Repair

[3] DISASSEMBLY/ASSEMBLY

[3]-2. Armature, Switch (cont.)

Mount Compression spring 6

to Lock lever.

Fig. 9

Fig. 10

ASSEMBLING

(1) Mount the Switches to Handle L complete and Housing L complete by taking the reverse step of Disassembling.

(Fig. 8)

(2) Armature can be assembled by taking the reverse step of Disassembling. (Figs. 7, 6)

(3) Assemble Gear complete. (Fig. 4) And then, mount Shear blade assembly. (Figs. 3, 2)

Notch of Yoke unit

Housing L complete

Protrusion of Housing L complete

Fit the protrusion of Housing L complete

into the groove of Yoke unit.

Assemble Yoke unit to Housing L complete. (Fig. 10)

[3]-3. Lock Lever

[3]-4. Yoke Unit

ASSEMBLING

Compression spring 6

Pin of

Lock lever

Rib of Handle L

complete

Inserting the pin of Lock lever into the elliptical hole of Slider,

assemble Lock lever so that the rib of Handle L complete comes to

the place between Compression spring 6 and Lock lever as drawn in right.

Elliptical hole of Slider

Handle switch

Lock lever

Compression spring 6

Reassemble Lock lever. (Fig. 9)

Circuit diagram

P7/ 9

White

Handle switch

Orange

Blue

Yellow

Color index of lead wires' sheath

Black

Dial

Motor Housing

Front handle switch

Controller

Brush holder

Line filter (if used)

Line filter

(if used)

Insulated

connector

Red

Main switch

Terminal

Fig. D-1

Handle section

Wiring diagram

P8/ 9

Fig. D-2 Fig. D-3

Line Filter and Brush

holders’ Lead wires

Lead Wires of Brush Holder

max.

30 mm

Lead wire (black)

of Brush holder

Lead wire (red) of

Brush holder

• Line filter’s position has to be adjusted that it

distances max. 30 mm from the rib for Yoke unit.

• Two lead wires from Brush holder have to be

coiled around Line filter one turn.

Rib for Yoke unit

Fix Lead wires with Lead wire holders

on Yoke unit side.

Yoke unit side

Line filter

(if used)

Line filter (if used)

Lead wire

holders

Brush holder

Fig. D-4

Motor Housing

Front grip switch

Line Filter (if used) Line Filter (if used)

Put Line filter between

Lead wire holder and

Controller.

Controller

Put Insulated connectors

in this place.

Fix Lead wires in these Lead wire holders.

Brush holder Fix Lead wires in

these Lead wire holders.

• Lead wires (black, red) to Insulated

connector have to be passed through

Line filter.

• Slack portion of lead wires have

to be stored in this place.

Lead wire holder

Wiring diagram

P9/ 9

Handle Section before assembling Handle Switch

Before assembling Handle switch, fix Lead wires (blue, orange) to Main switch

with Lead wire holders as drawn below.

Fig. D-5

Fig. D-6

Lead wires (blue, orange)

Main switch

Place for

Handle switch

Handle Section after assembling Handle Switch

Handle switch

Handle set (L)

Lead wire holder

Pass Lead wire from Controller

between Ribs.

Terminal

Fix Lead wires of Handle switch

with Lead wire holder

Ribs

Dial

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