Panasonic EY6780 User manual

ORDER

NO.

MEW/PTD

9411-6780

Service

Manual

Cordless

Off-set

Drill

Driver

SPEC

CAT

1ONS

DRILL/DRIVER

Motor

voltage

9.6V

load

speed

120

800

min

-1

(RPM)

Maximum

torque

5.9Nm

(60kg-cm,

521n.lbs.)

Maximum

clutch

torque

4.4Nm

(45kg-cm,

391n.lbs.)

positions

Overall

length

213mm

(8-22/32°)

Mass

(Weight)

1.5kg

(3.31bs.)

(with

battery

pack)

BATTERY

PACK

EY9086

(Compact

Type)

Storage

battery

Nl-Cd

battery

Battery

voltage

9.6V

(

1.2V

cells)

Battery

Capacity

120OnAh

BATTERY

PACK

EY9182

Storage

battery

Ni-Cd

battery

Battery

voltage

9.6V

(

1.2V

cells)

Battery

Capacity

1600mAh

BATTERY

CHARGER

Input

120,

230,

240V

separately

available

Mass

(Weight)

0.66kg

(1.451bs.)

Charging

time

Approx.

min.

(with

compact

type

battery

pack)

Approx.

min.

(with

high

capacity

type

battery

pack)

STANDARD

EQUIPMENT

Battery

charger

Battery

pack

Phillips

bit

(75irm)

CONTENTS

Page

•

Specifications

Troubleshooting

7-8

Disassembly

Assembly

Instructions.

2-5*

Exploded

View..

•

Wiring

Connection

Diagram/Schmatlc

Diagram

••••

■

Replacement

Parts

List

.10

1994

Matsushita

Electric

Works,

Ltd.

All

rights

reserved.

Unauthorized

copying

and

distribution

violation

law.

Panasonic

Model

EY6780

WARNING

This

service

literature

designed

for

experienced

repair

technicians

only

and

not

designed

for

use

the

general

public.

does

not

contain

warnings

cautions

advise

non-technlcal

Indi¬

viduals

potential

dangers

attempting

service

product.

Products

powered

electricity

should

serviced

repaired

only

experienced

professional

technicians.

Any

atteapt

service

repair

the

product

products

dealt

with

this

service

Inforaatlon

anyone

else

could

result

serious

injury

death.

DISASSEMBLY

ASSEMBLY

INSTRUCTIONS

Ref.

No.

Procedure

Removal

the

housings.

emove

housing

screws.

Hint

Remove

the

lead

wires

from

the

switch

may

help

efficient

work.

Ref.

No.

Procedure

Removal

attachment

the

motor.

Gear

case

block

Motor

Gear

case

block

Radiating

plate

Bit

holder

Bit

holder

[IJ

Revolving

mechanism

Clutch

handle

Switch

Black

Thrust

olv1ng

mechanism

ite

Clutch

handle

(Removal

the

motor.)

Remove

the

motor

with

the

gear

box

block

from

housing.

Separate

the

motor

from

the

gear

box

block

twisting

the

motor

unlock

tabs

the

direction

the

arrow.

(Attachment

for

the

motor.)

djust

the

tabs

gear

box

block

the

groove

motor

the

counter-direction

the

arrow.

Model

EY6780

Removal

the

revolving

mechanism.

Bit

holder

Bit

holder

spring

Gear

case

Gear

/Steel

ball/

Gear

case

block

case

(02)

/Holder

collars

ffwm

”

type

ring

“

flu

/Bit

holder

==il

Steel

ball(02)

Bit

holder

bolck

Revolving

mechanism

Clutch

handle

emove

the

C-type

ring

the

top

the

bit

holder

with

snap

ring

pliers.

C-type

ring

are

lively

and

could

lost,

handle

accordingly.

careful

not

lose

pieces

steel

balls{02)

and

holder

collars.

Ref.

No.

Procedure

-**•

-*>

Removal

the

gear

case

block.

Output

shaft

block

0-ring

Lock

lever\/

Gear

case

Lock

lever

Remove

screws

for

gear

case

Disassemble

the

lock

and

the

lock

lever.

careful

not

lose

springs

attached

the

gear

case

Take

out

the

output

shaft

block

from

the

gear

case

Make

sure

attach

the

O-ring

with

output

shaft.

Make

sure

when

assembling,

the

lock

have

their

own

directions.

Model

EY6780

Ref.

(to.

Procedure

♦

Removal

the

driving

block.

Gear

case

block

Thrust

Gear

case

Clutch

handle

Clutch

case

C-type

spring

Insert

Hammer

Bushing

Qea

Clutch

handle

When

removing

the

thrust

pins,

the

driving

shaft,

the

ring

gear

and

the

planet

gear

etc.

remove

one

after

another.

careful

not

lose

the

pieces

steel

balls

(05).

(Removal

the

bushing.)

Remove

the

C-type

spring

from

the

bushing.

Set

and

knock

the

jig

remove

the

bushing

out

rcm

the

clutch

case.

(Attachment

for

the

bushing.)

Set

the

bushing

the

clutch

case

from

the

side

gear

case

Knock

the

jig

until

the

bushing

Inserted

completely.

Set

the

C-type

spring

the

bushing.

careful

not

break

deform

the

gear

case

rib

when

knocking

the

bushing.

Model

EY6780

Ref.

No.

Procedure

lA-*2-*3-*4-*-5

Attachment

for

the

adjusting

screw

and

Clutch

handle

Align

the

n«rk

adjusting

screw

with

Adjust

the

tabs

click

plate

the

'A'

part

the

clutch

case.

projection

adjusting

screw.

Turn

the

adjusting

screw

Into

driving

block

Set

the

clutch

handle

with

position

toward

about

one

rotation

for

clockwise

direction.

part

the

clutch

case.

Align

the

mark

adjusting

screw

with

Insert

the

clutch

handle

with

adjusting

the

'A*

part

the

clutch

case.

tabs

adjusting

screw

and

click

plate

the

groove

Inside

clutch

handle.

Ref.

No.

Procedure

Removal

attachment

the

battery

charger.

(Removal

the

battery

charger.)

(Attachment

for

the

battery

charger.)

Remove

housing

screws.

Reassemble

the

module

block

(power

cord,

power

transformer,

and

module)

housing

certain

that

LED

appears

through

the

hole

housing

Set

the

bushing

for

power

cord

the

housing

NOTE

Avoid

pinching

lead

wires,

dress

into

housing

recess

and

around

screw

posts

etc.

After

assembly,

test

for

proper

voltage.

Measure

the

battery

terminals

between

(S)

and

(-).

OK,

approx.

DC.

Model

EY6780

WIRING

CONNECTION,

DIAGRAM

■

Main

unit

Motor

SCHEMATIC

DIAGRAM

EY6780EQK

EY6780CQK

Battery

Charter

Battery

rack

Main

Unit

Battery

Charoar

Battery

Pack

Hein

Unit

Model

EY6780

TROUBLESHOOTING

GUIDE

(

Refer

WIRING

CONNECTION

DIAGRAM

)

TROUBLE

CHECK

REMEOY

<CHECK

BATTERY

PACK.>

less

than

9.6V

available

across

the

(+)

and

(-)

terminals,

the

battery

pack

OK.

Note:

The

battery

pack

sold

separately

shown

REPLACEMENT

PARTS

LIST.

The

battery

pack

has

limited

life.

The

pack

should

replaced

after

being

charged

for

the

rated

charging

time

the

battery

voltage

less

than

9.6V

the

usable

time

extremely

short.

the

battery

leaks.

Check

battery

for

leaks

and

terminals

for

corrosion.

CCHECK

SWITCH

BLOCK.>

(

See

WIRING

CONNECTION

DIAGRAM.

)

With

touching

(+)

terminal

Volt-Ohm

meter,

check

continuity

between

following

terminals.

Inspection

the

forward

reverse

selection

switch.

(a)

Wien

the

switch

handle

depressed

all

the

way

•

There

should

between

and

between

;

when

the

switch

lever

set

the

forward

side.

•

There

should

between

and

between

(g)

;

when

the

switch

lever

set

the

reverse

side.

(

continued

)

Contacts

the

switch

block

are

defective.

Replace

the

switch.

Does

not

operate.

Does

not

speed-

control

does

not

brake.

■

EY0202

Does

not

charge.

Model

EY6780

Model

EY6780

REPLACEMENT

PARTS

LIST

Note

•••

available

optional

accessory

available

Individually

•••

only

available

set

Ref

No.

Parts

No.

Parts

Name

Descriptions

Per

set

Remarks

EY670OK3O70

HOUSING

SET

EY6401LQ177

CLICK

SPRING

EY670OK3117

GEAR

CASE

EY670OLO337

BUSHING

EY60OOBO447

C-TYPE

RING

EY670OL3227

CLUTCH

CASE

EY670OLO577

CLUTCH

PLATE

EY6780L0457

CLICK

PLATE

EY670OLO167

SPRING

FOR

CLUTCH

EY6283L0637

ADJUSTING

SCREU

EY670OH3237

CLUTCH

HANDLE

EY678OL1407

CLUTCH

CASE

BLOCK

EY670OLO5O7

LOCK

EY6780L0597

LOCK

EY670OYO360

LOCK

LEVER

EY670OL4537

OUTPUT

SHAFT

BLOCK

EY6780L0977

O-RING

EY6780L0177

SPRING

FOR

LOCK

LEVER

’

EY670OK31O7

GEAR

CASE

EY670QK6977

STEEL

BALL

EY67B0L0837

HOLDER

COLLAER

EY670QK3717

BIT

HOLDER

EY6780L0197

HOLDER

SPRING

EY6780KQ187

C-TYPE

SPRING

EY574B9037

TAPPING

SCREW

EY6401LO357

THRUST

SET

EY560B6967

STEEL

BALL

EY670OL1127

DRIVING

SHAFT

EY560B1457

RING

GEAR

EY6780L1357

PLANET

GEAR

EY62OOBO057

THRUST

PLATE

EY670QL1377

TRANSMISSION

GEAR

EY560B1367

PLANET

GEAR

SET

EY6401L1467

RING

GEAR

EY6401LO007

THRUST

PLATE

EY6780L1008

MOTOR

EYT104LOO27

MOTOR

MOUNTING

PLATE

EYT184L6077

SCREU

FOR

MOTOR

EY6780L2947

LEAD

WIRE

SET

EY6780L6027

TAPPING

SCREU

EYT184L2567

RADIATING

PLATE

(W/SCREU)

EY670OY2OO0

SWITCH

BLOCK

EY67B0L6037

SCREU

EY6401LO2O7

DUST

PREVENTIVE

PLATE

EY6401H3247

SELECTOR

HANDLE

EY563B9217

TAPPING

SCREW

EY502B7957

PHILLIPS

BIT

EY9O06

BATTERY

PACK

EY9182

BATTERY

PACK

EY0202

BATTERY

CHARGER

EY678OL7067

JIG

FOR

BUSHING

—

EY9592

TOOL

CASE

(7>'JA)

Printed

Japan.

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