Makita HK0500 Manual

TECHNICAL INFORMATION

For Models

HK0500

Standard equipment

Optional accesories

Scaling chisel

Bull point 14-250

Cold chisel 20-250

Scaling chisel 38-200

Grease for Bit

Grease for Hammer

New Tool

CONCEPTION AND MAIN APPLICATIONS

Model HK0500 exclusively for SDS-Plus Bit , developed for fine

chipping works, such as tearing up tiles, joints, and mortar in re-

construction sites.

We have put Motor laterally and made the Barrel thickness to be

suitable for gripping so that tile tearing works may be easier. In

Chuck structure, one-touch sliding system has been applied, which

you can attach only by inserting Bit and searching grooves.

Moreover, your fingers will not be exhausted in continuous operations

owing to Large switch and Large D-shape handle. At the top end, a

very effective dust-proof cap with lip has been applied.

Motor Series commutator motor ( 72 type 25 )

2000~3500 bpmBlows per minute

Specifications

Voltage (V) Current(A) Cycle(Hz) Input Max. output(W)

output

100 5.8

5.0

2.6

2.5

2.4

50/60 550

550

260

500

115 50/60

220 50/60

230 50/60

240 50/60

Description

Power Scraper

Continuous Rating(W)

468mm(18-1/2")

174mm(6-7/8")

83mm(3-1/4")

Shape for easy use

The length and shape suitable for tile tearing ,

putting Motor laterally.

Improved Dust-proof

Owing to applying a dust-proof

cap with lip, it is prevented that

dusts enter fromthe top end.

Light weight

MAKITA #HK0500:

3.1kgs (6.8 lbs)

Tough body

The strength is enough to bear if you

use it gouging like a bar.

Large Trigger switch

Your fingers will not be exhausted

even after a long time operation.

Large L-shape handle

Large and round Handle shape is easy

to grip.

With dial of variable/stepless speed

You can do finer chipping works, and

operate the dial, pulling Trigger.

Low Vibration Whole plastic body

If Bit touches electric wires in the

wall, electric shock is rarely conveyed

to a worker because the whole outer

surface is covered by plastic.

Bit can be fixed at 12 levels

of degreed position.

The strength is enough to

bear if you use it gouging

like a bar.

One-touch sliding chuck

By only inserting Bit and searching

grooves, you can install Bit. Thick commutator

Effective thickness of Segment in

Commutator has been made to be as

twice big

as that of #HK1810. Also, it is

protected from radiant heat and dust

particles by

Barrel part easy to be gripped

Very comfortable to grip because of its

proper thickness and length ( 58x100mm,

2-1/4" x 3-15/16" )

Repair

1. Repair of Armature

 Disassembly:

 1) Remove Tapping screw4x18(6 pcs) , Handle cover,

and Carbon brush. (See Fig. 1)

 2) Remove Tapping screw5x20 (4pcs) , and separate

Clunk housing from Motor

 housing. (See Fig.2)

 3) Remove Countersunk head screwM4x12(2pcs) and

Armature. ( See Fig.3)

Assembly:

1) After installing Bearing retainer68 and Flat washer12,

attach Ball bearing

 6206201DDW. Then install Retaining ring (axis) S-

12. ( See Fig.4)

Handle cover

Fig. 1

Tapping screw M4x18

Tapping

screw5x20

Clunk

housing cover

Motor housing

Armature

Retaining ring

(axis) S-12

Ball bearing 6201 DDW

Flat washer 12

Bearing retainer 68

Armature

Countersunk

head screw

M4x12

Fig. 2

Fig. 3

Fig. 4

2. Repair of Chuck

 Disassembly:

 1) Lower chuck cover and remove Cap37 (See Fig.5)

 Then , remove Chuck cover, Compression spring38

and Spring guide ( SeeFig.6)

 2) Remove Leaf spring 26 from Chuck ring and remove

Pin( See Fig.7).

 Remarks: You can remove Leaf spring easily by

Retaining ring plier .



3) When removing Chuck ring, Steel ball7.0, Spring

guide and Compressionspring38 will come off. (See

Fig.7)

Assembly

In attaching Pin8, you need to lower Spring guide

(See Fig. 8).

Cap 37

Chuck cover

Spring guide

Compression

spring 38

Fig. 5

Fig. 6

Leaf spring 26

Chuck ring

Pin 8

Spring guide

Compression

spring 38

Tool holder

Steel ball 7.0

Fig. 7

Fig. 8

Spring guide

Pin 8

3. Repair of Clunk housing

 Disassembly:

 1) Remove Tapping screw4x18(2pcs), and pull out

Clunk housing cover. (Fig.9).

 2) Remove Tapping screw4x16(4pcs) and Clunk cap.

(Fig.10)

 3) Remove Retaining ring (hole) R-38 and pull out Tool

holder. (Fig.11)

 4) Take out Piston from Clunk housing. (Fig.10)

Fig. 9

Fig. 10

Fig. 11

Clunk housing cover

Tapping screw 4x16

Clunk cap

O Ring 53

Piston

Retaining ring (hole) R-38

Clunk housing

Tool holder

Tapping screw 4x18

Assembly

 1) After attaching Flat washer27 to Clunk housing,

install Oil seal 30. ( See Fig.12)

 2) After attaching Piston to Clunk shaft, install Tool

holder. ( Fig.10)

 NOTE: Check that Flat washer 27 is not inclining and

is in a position shown in

 Fig. 12 .



 3) Using Jig (1R 232), install Ring27, Polyurethane

washer28 and Ring27 in this

 order. ( See Fig. 13)

 4) Check if O Ring 53 is attached to Clunk cap or not. (

See Fig.10)

Fig. 12

Jig (1R232)

Ring 27

Polyurethane washer 28

Ring 27

Clunk housing

Oil seal 30 Flat washer 27

Fig. 13

4. Repair of Tool holder

 Disassembly:

1) Insert SDS-plus with its end ahead , and pull out

Striker by pressing Impact bolt.

 ( See Fig. 14)

2) Put a thin driver into hole of Tool holder, hit it by

plastic hammer, and remove

 Ring spring 21 from grooves. ( See Fig.15)

 3) Inserting a thin round rod into the end and hitting it by

Plastic hammer, take the

 following items out of Tool holder;

 Impact bolt, Flat washer13, O Ring 15,

 O Ring case, Ring spring21

 ( See Fig. 16)

Fig. 14

Striker

Tool holder

Fig. 15

Tool holder

Fig. 16

Tool holder Flat washer 13

Impact bolt O Ring 15

O Ring case Ring spring 21

Assembly

 1) Check that O Ring 11 is put in O Ring case.

2) After making Flat washer13, O Ring 15 and O Ring

case pass through Impact bolt, press them into Tool

holder. (See Fig.17)

 At that time use Striker as a jig putting up-side-down.



NOTE: Use O Ring 16 of Striker after removing. Be

careful about the order of

each part and the attaching direction of Impact bolt.



 3) In installation, exchange Ring spring 21 for a new

one.

 4) Insert Ring spring21 in Tool holder by ? driver, etc.,

use Striker as a jig in the

same way as 2), and then place Ring spring 21 into

grooves of Tool holder. ( SeeFig. 18)

 5) Being careful of the attaching direction of Striker,

press it into Tool holder. ( See fig.19)

Fig. 17

Fig. 18

to Bit side

Impact bolt

Striker

Ring spring 21

Groves in

Tool holder

O Ring 11

to Bit side

Striker

O Ring case

O Ring 15

Flat washer 13

Impact bolt

Fig. 19

5. Repair of Spiral gear

 Disassembly

 1) Remove Tapping screw4x16 and Gear cover. ( See

Fig.20)

 2) Use Jigs, 1R232 and 1R238, shown in Fig.20, press

out Clunk shaft by Arbor press.



Assembly

1) Attaching Ball bearing6002LLU to Clunk housing,

install Retainer ring(hole) R-32. ( See Fig. 21)

 2) Install Oil seal15 in Clunk housing using Jig 1R249.

At that time put it approx.

 1mm deeper than end surface. ( See Fig.21)

 3) Attach Clunk shaft.

4) Fixing Clunk shaft steadily by Jig1R216, press in

Spiral gear41 and Ballbearing6200LLB . After that,

install Gear cover. (See Fig.22)

Fig. 20

Tapping screw 4x16

Gear cover

Jig (1R238)

Ball bearing 6200LLB

Spiral bevel gear 41

Clunk housing

Clunk shaft

Jig (1R232)

1.0

Fig. 21

Clunk shaft

Retaining

ring(hole) R-32

Ball bearing

6002LLU

Oil seal 15

Fig. 22 Jig(1R216)

Clunk shaft

Spiral bevel gear41

Ball bearing 6002LLU

Gear cover

6. Grease

[ Grease exchange]

In exchanging Carbon brush, exchange Grease also.

1) Drive the Machine for several minutes for warming.

2) Referring to the above mentioned (2) Chuck repair and (3) Clunk housing, remove Clunk cap.

3) Directing the Machine top end upward, collect Grease in Clunk room, wipe itaway with a cloth, and pour in 10 cc of

MAKITA grease R No.00.



 NOTE: If you put Grease more than the defined quantity, a trouble such aswrong striking may occur. So, be careful

not to pour too much.



[ Place to apply Grease ] ( :applying place)

Apply Grease to the following positions to prevent early abrasion and being burnt

down.

1) Where MAKITA Grease is to be applied

 Impact bolt:

O Ring,

X Ring,

All around Impact bolt

 Striker:

O Ring,

All around Striker

 Piston:

O Ring,

All around Piston



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