Panasonic EY6780 Manuel utilisateur

ORDER NO. MEW/PTD 9411-6780

Service Manual

Cordless Off-set Drill &Driver

EY 6780

SPECIF! CAT IONS

DRILL/DRIVER

Motor voltage

No load speed

Maximum torque

Maximum clutch torque

Overall length

Mass (Weight)

(with battery pack)

9.6V DC

120— 800 min"1(RPM)

5.9Nm (60kg-cm, 52in.lbs.)

4.4Nm (45kg-cm, 391n.lbs.)

at 21 positions

213mm (8-22/32°)

1.5kg (3.31bs.)

BATTERY PACK EY9086 (Compact Type)

Storage battery

Battery voltage

Battery Capacity

BATTERY PACK EY9182

Storage battery

Battery voltage

Battery Capacity

BATTERY CHARGER

Input

Mass (Weight)

Charging time

N1-Cd battery

9.6V DC (1.2V X8cells)

1200mAh

Ni-Cd battery

9.6V DC (1.2V x8cells)

1600mAh

120, 230, 240V AC separately available

0.66kg (1.451bs.)

Approx. 15 min. (with compact type battery pack)

Approx. 20 min. (with high capacity type battery pack)

STANDARD EQUIPMENT

Battery charger ,Battery pack ,Phillips bit #2 (75mm)

CONTENTS

Specifications ••

Disassembly &Assembly Instructions

Wiring Connection Diagram/Schmatic Diagram

Page Page

1Troubleshooting 7-8

2-5•Exploded View 9

6Replacement Parts List 10

Panasonic C1994 Matsushita Electric Works, Ltd.

distribution is aviolation of law.

Model EY6780

AWARNIhG

This service literature Is designed for experienced repair technicians only and Is not designed for

use by the general public. It does not contain warnings or cautions to advise non-technical Indi-

viduals of potential dangers in attempting to service aproduct. Products powered by electricity

should be serviced or repaired only by experienced professional technicians. Any atteapt to service

or repair the product or products dealt with In this service Inforaatlon by anyone else could result

in serious injury or death.

DISASSEMBLY /ASSEMBLY INSTRUCTIONS

Ref. No. 1Procedure 1A Removal of the housings.

1. Remove 8housing screws.

Hint :Remove the 2lead wires from the switch may

help to do efficient work.

Ref. No. 2Procedure 1A -• 2Removal or attachment of the motor.

Gear case block

Motor

Radiating

plate

Motor Gear case block

9Bit holder If

Revolving mechanism

Clutch handle

Switch Black

L11 si

Bit holder

-1r-j,u=f^

^P1"\Revolving

*1t*Clutch handle mechanism

(Removal of the motor.

)

1. Remove the motor with the gear box block from

housing.

2. Separate the motor from the gear box block by

twisting the motor to unlock tabs 1n the

direction of the arrow.

(Attachment for the motor.

)

3. Adjust the tabs of gear box block to the

groove of motor 1n the counter-direction of

the arrow.

-2-

Model EY6780

Ref. No. 3A Procedure 1A ~* 2-* 3A Removal of the revolving mechanism.

Bit holder

1. Remove the C-type ring at the top of the *Otype ring are lively and could be lost,

bit holder with snap ring pliers. handle accordingly.

*Be careful not to lose 2pieces of steel

balls(#2) and 2holder collars.

Ref. No. 4A Procedure 1A 2—3A —4A Removal of the gear case block.

Output shaft block

0-ring

Lock pin B

Lock lever

Gear case B

Lock pin A

Lock lever

1. Remove 4screws for gear case A.

2. Disassemble the lock pin AB and the lock

lever.

*Be careful not to lose 2springs attached to

the gear case A.

3. Take out the output shaft block from the

gear case B.

*Make sure to attach the 0-ring with output

shaft.

4. Make sure when assembling, the lock pin AB

have their own directions.

-3-

Model EY6780

Ref. No. 3B Procedure 1A —> 2—> 3B Removal of the driving block.

Gear case block

Clutch handle

1. When removing the 2thrust pins, the driving

shaft, the ring gear and the planet gear etc.

remove one after another.

*Be careful not to lose the 12 pieces of steel

balls ($5).

(Removal of the bushing.

)

2. Remove the C-type spring from the bushing.

3. Set and knock the J1g to remove the bushing

out rem the clutch case.

(Attachment for the bushing.

)

4. Set the bushing to the clutch case from the

side of gear case B. Knock the J1g until

the bushing 1s Inserted completely.

5. Set the C-type spring to the bushing.

*Be careful not to break or deform the gear

case rib when knocking the bushing.

-4-

Model EY6780

Ref. No. 6Procedure 1A —2-*3-*4-»5 Attachment for the adjusting screw and

the clutch handle.

Clutch

Acting screwcl1ck ^

OO mark

Clutch handleOmark

1. Al 1gn the Omark of adjusting screw with

'A' part of the clutch case.

2. Turn the adjusting screw Into driving block

about one rotation for clockwise direction.

3. Al 1gn the OO mark of actjusting screw with

'A' part of the clutch case.

4. Adjust the tabs of click plate to the

projection of adjusting screw.

5. Set the clutch handle with position 7toward

Apart of the clutch case.

6. Insert the clutch handle with adjusting the

tabs of adjusting screw and of click plate to

the groove of inside clutch handle.

Ref. No. 7Procedure IB Removal or attachment of the battery charger.

(Removal of the battery charger.

)

1. Remove 4housing screws.

(Attachment for the battery charger.

)

2. Reassemble the module block (power cord,

power transformer, and module) to housing A,

be certain that LED appears through the hole

1n housing A.

3. Set the bushing for power cord to the

housing A.

NOTE :Avoid pinching lead wires, dress Into

housing recess and around screw posts

etc.

4. After assembly, test for proper voltage.

Measure the battery terminals between (S) and

£-).

It is OK, if 1t 1s approx. 3V DC.

-5-

Model EY6780

WIRING CONNECTION, DIAGRAM

Main unit

Motor

Cushion

fet

Motor terminal (+)

Battery terminal (

Cushion

terminal (-)

Switch handle

Battery terminal {-)

SCHEMATIC DIAGRAM

EY6780EQK

EY6780CQK

Pomr

sourc*

L-

TT? 1.

ri n

m—'„te

(-)?—(

L..

i. .-

Niurr Chtrgsr B*tmy P«e* Main Unit

Ponr

tourco

S+

B+

B-

S+

»1 [.

FET

Biturr Chtroar tottery Pack lUin Unit

-6-

Model EY6780

TROUBLESHOOT ING GU IDE (Refer to WIRING CONNECTION DIAGRAM )

Does not

operate.

<CHECK BATTERY PAOO

If no less than 9.6V DC 1s available across

the (+) and (-) terminals, the battery pack

is OK.

Note: The battery pack 1s sold separately

as shown 1n REPLACEMENT PARTS LIST. The

battery pack has alimited life. The pack

should be replaced if

-after being charged for the rated

charging time the battery voltage 1s

less than 9.6V DC or the usable time

1s extremely short.

-the battery leaks. Check battery for

leaks and terminals for corrosion.

<CHECK TERMINAL CONNECTIONS BETWEEN

MAIN UNIT AND BATTERY PAOO

Check for proper terminal contacts.

The motor normally operates with Its white

(M+) and black (M-) lead wires connected to

9.6V DC.

<CHECK SWITCH BLOCK.

(See WIRING CONNECTION DIAGRAM. )

With touching (+) terminal of Volt-Ohm meter,

check continuity between following terminals.

*Inspection of the forward /reverse

selection switch,

(a) When the switch handle is depressed all

the way :

•There should be OQ between ®-(§),

and between ©-@;when the switch

lever 1s set to the forward side.

•There should be OQ between ©-®,

and between (f) -(f) ;when the switch

lever is set to the reverse side.

Replace battery pack.

-Repair the contacts.

Replace the motor.

Contacts 1n the switch

block are defective.

Replace the switch.

(to be continued )

-7-

Does not speed-

control or does

not brake.

<CHECK SWITCH BLOCK.

FET block could be damaged.

Replace the switch &FET

block.

EY0202

Does not charge. <CHECK POWER C0RD.>

Check continuity.

Replace power cord.

NOTE: Loose connection are possible.

Check for loose capacitor.

If so, resolder.

Check for loose choke (coil).

If so, resolder.

<CHECK MODULE.

Check the lamp Indication of the battery

charger.

Replace module 1n the

charger.

Charging lamp —

Red

Flashing Charger is plugged into power

source. Ready to charge.

Lit Now charging.

Charging 1s completed.

L_ ..—•Flashing

quickly

ILit Battery pack 1s warm. Charging

Standby lamp —will begin when temperature of

Orange battery pack drops.

—•••• Flashing Charging is not possible.

Clogged with dust or malfunction

of the battery pack drops.

Possibly foreign matter 1n the charger's battery pack socket,

or amalfunction of the battery pack.

-8-

Model EY6780

EXPLODED VIEW

-9-

Model EY6780

REPLACEMENT PARTS LIST

Note :*A ••• available as an optional accessory

*B ••• only available as set

*C ... available Individually

Ref No. Parts No. Parts Name &Descriptions jPer set Remarks

ltTo roUlsoU /a MUU3 1INL3 HO 9C 1

<£ CYUR1 Ifl 1"77 nirj^ qpi? iKin

•3

JCVi*"7Ank"31 1"7

CIO rOUIsnJ 11fPCAD fACC D

L3C.HK I.HDC D

** LIO ruULUJO

DUjn lin la

C, tIOOUUDU4H fP—TYPF P

\- 1I~C rs 11xLj

OCIO fOULOZZ fLI_U 1^.n '.HOC

—y

frvL*>oni nc*7*7

ETo /OULUb r

C\ 1ITPLI PI ATP

oEY67QQLU457 /•i Ift/ oi ATC

LL 1LJ\ rLH 1c

Tcvi7oni r»4 /~7

cio roULUlo

cdo iMr cnD niittm

10 EY6ZQ3LQ63

An ii ict iMr cr DCli

EY6780H3237 CLUTCH HANDLE 7

12 EY6780L1487 CLUTCH CASE BLOLK. 7

13 EY6780L0507 LOCK PIN A

14 EY6780L05°7 LOCK PIN B

15 EY6780Y0368 1API/ 1CI l|~Q

LOCK LEVER *B

16 c\s /7ort Iv. e77

EYo7H0L4b37 OUlrUI bnAr 1oLULIs

17 r— \/ /-inni 0077

EY67BDLUV77 0—K1Nb

18 f-w /"inni fl 477

EY67QUL0177 caoiwr cad ir\cv \euro

SrKIiNb rUK LULIs LcvtK D

17 EY6 /BUK31 U/uLAK LnbC A

ZC CVi 7Qni/ /o7~>

EY6 /oUK6v //CTCCI DAI 1

31CCU BALL 1n0

Zl f-v /inni na"7

EY67B0L0B37 uni nco roi iacq

HULUtK LULLAcK *B

zz EY67QQK371

aI1HULUtK

22 EY67B0L01t7 HOLDER SrRlNb

24 EY6780K0187 C-TYPc SPRING

25 EY574B°037 TAPPING SCREW WL

26 EY6481L0357 T1 ini lTnILI cPT

THRUST PIN SET •7

27 EY560B6t67 f-> TT f~ f-1DAI 1

STEEL BALL 1zD

28 EY6780L1 127 DRIVING SHAFT

2*7 EY560B1 457 RING GEAR A

30 EY67BUL13b

QI AMC TrCAQ A

rLANc 1GEAR A*R

31 EY6ZUUBUob rTUQI ICT Dt ATC

IHRUbl rLA 1

3Z rvi 7001 17 7 7

EY67BQL13

fTDAMCMICCIflM <ZC AO

IKAlNon Itso 1UIN bcAK

33 tYboUol3o rDl AMCT CPAD QCPT

rLANc 1bcAK BSC

"3/. cT6-sC3 1L1 *o rOIMC CPAP n

35 tT6401LUOO fTUDI ICT PI ATP

1MKUo 1rLA 1

7/.

36 EY6 raULlUuo no iuk

7*7

37 EYT lo4LUUZ rMftTrtD M(*\\ IMT 1PI ATP

nU IUK nUUNIiiNb rLH 1t

38 CVT 4O/1V("17 7

EYT184L6077 bCKEW PUK rlU 1UR

3t tY67BDLZt47 ICaniii nr rr-T

LEAD WIRE be 1

40 r— v/Torn /n77

EY678QL60Z7 TAODiKir crotrii

1Arr INb SLKeW

/ 4

41 CV T 4O/. 1/7

EYT 1B4LZ&6 /DARIATIMC OI ATCT /I.I /CP* PPI.I \

RAUlAllNb rLA 1CvW/bLKcW;

/. 7

4Z EY67BUYZuuo CI 1iTru QI C\CY

bw 11LH oLULN

43 EY67SUL6U3

croci i

bLKcw L

44 EY64Q1L0ZU 7ni ICT DDCUCMT IUP PI ATP

UUb IrKfcvciNllve rLA lc

45 EY6481H3247 SELECTOR HANDLE

46 EY563B7217 TAPPING SCREW *c

47 EY502B7957 PHILLIPS BIT «2 *A

46 EY9086 BATTERY PACK

4? EY°182 BATTERY PACK *A

50 EY0202 BATTERY CHARGER *A

51 EY6780L78o7 JIG FOR BUSHING

EY9592 TOOL CASE *A

(jm) Printed in Japan.

-10 -

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