ORDER NO.PTD0310U39C1
F16
Cordless Impact Driver
EY6506-U1
SPECIFICATIONS
CONTENTS
Page
Page
1 SCHEMATIC DIAGRAM
2
2
3
4 TROUBLESHOOTING GUIDE
5 EXPLODED VIEW
5
7
8
2 WIRING CONNECTION DIAGRAM
3 DISASSEMBLY/ASSEMBLY INSTRUCTIONS
6 REPLACEMENT PARTS LIST
© 2003 Matsushita Electric Works Ltd. All rights
reserved. Unauthorized copying and distribution is a
violation of law.
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EY6506-U1
3 DISASSEMBLY/ASSEMBLY INSTRUCTIONS
IHOW TO DISASSEMBLE MAIN UNIT.
Ref. No. 1A
Procedure 1A
Removal of the Fixation cover and Housing.
1. Remove four screws tightened with the fixation cover and take it
out.
2. Remove eight housing screws.
Ref. No. 1B
Procedure 1A → 1B
Removal and attachment of the Motor.
(Removal)
1. Take out the motor with the driving block from housing.
2. Separate the motor assembly from the driving block.
3. Take out the motor rotor assembly from the motor stator.
NOTE :
Make sure not to damage the magnet by motor rotor.
(Attachment)
1. Insert the motor rotor assembly into the stator.
NOTE :
Make sure that the motor stator has their own direction for proper
assembly. If it is assembled wrongly, the rotation may be the
opposite way.
3
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EY6506-U1
Ref. No. 1C
Procedure 1A → 1B → 1C
Removal of the Driving Block.
1. Remove the thrust plate.
2. Take out the planet gears and pins slightly tapping the driving block
on the table.
Ref. No. 1D
Procedure 1A → 1B → 1C→ 1D
Assembly of the Switch.
1. Press fit the lead wires firmly.
4
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EY6506-U1
4 TROUBLESHOOTING GUIDE
(Refer to WIRING CONNECTION DIAGRAM)
< TROUBLE >
Does not operate.
< CHECK >
<CHECK BATTERY PACK.>
< REMEDY >
NO Replace battery pack.
→
→
If no less than 12V DC is available across the (+) and (-) terminals,
the battery pack is OK.
The battery pack is sold separately as an optional accessory.
See the nearest sales dealer for details. The battery pack has a
limited life.
NOTE:
The pack should be replaced if;
-
-
after being charged for the rated charging time the battery voltage
is less than 12V DC or the usable time is extremely short.
the battery leaks. Check battery for leaks and terminals for
corrosion.
↓OK
<CHECK TERMINAL CONNECTIONS BETWEEN MAIN UNIT
AND BATTERY PACK.>
NO Repair contacts.
→
Check for proper terminal contacts.
↓OK
<CHECK SWITCH BLOCK.>
NO Contacts in switch block
(See WIRING CONNECTION DIAGRAM.)
→
are defective.
Replace switch & FET
block.
Check continuity between following terminals.
Inspection of the forward / reverse selection switch.
When switch handle is depressed all the way:
*
-
There should be 0Ω between (A) - (D) , and between (B) - (C) ;
when switch lever is set to forward side.
-
There should be 0Ω between (A) - (C) , and between (B) - (D) ;
when switch lever is set to reverse side.
*
Inspection of the brake.
When switch handle is not depressed:
-
There should be 0Ω between (A) - (B) .
↓OK
<CHECK MOTOR BRUSH.>
NO Replace motor
brush assembly.
A. Check the condition of carbon brush.
(Do not touch between brush holder and holding spring.)
B. There should be 0Ω between motor lead wire and
terminal of brush holder.
→
↓OK
<CHECK MOTOR ROTOR.>
Check the condition of rotor if there is any wear, crack and deformation.
NO Replace motor
rotor assembly.
→
↓OK
<CHECK MOTOR STATOR.>
Check the condition of motor case if there is any crack and deformation.
NO Replace motor
stator.
→
5
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EY6506-U1
< TROUBLE >
Does not speed-
control.
< CHECK >
<CHECK FET.>
< REMEDY >
NO Repair the contact
or replace switch
→
Even if FET block is defective, it can not be replaced individually.
Replace whole switch block.
→
& FET block.
Remove the FET circuit block and check the lead wire terminals.
These terminals are open normally when there is an open circuit (
between the green and yellow lead wires, and between the blue and
yellow lead wires.
Ω)
NOTE:
*
FET is weak against static electricity.
** The resistance value may be some differences depends on the
measurement range.
Does not vibrate
or weakness of
vibration.
<CHECK ANVIL.>
Check wear condition of anvil. If no less than 1mm from
the corner at (A) side or 0.5mm from the corner at (B) side,
anvil is OK.
NO Replace anvil.
→
→
6
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EY6506-U1
5 EXPLODED VIEW
7
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EY6506-U1
6 REPLACEMENT PARTS LIST
NOTE:
*B=only available as set
*C=available individually
Ref.No.
1
Part No.
Part Name
HOUSING AB SET
CLICK SPRING
&
Description
Remarks
Per Unit
WEY6506K3078
EY6481L0177
WEY6506H4057
WEY6504L0987
WEY7300K1167
WEY6605L0857
WEY6605L0197
WEY6404K3717
WEY6506H3747
WEY6505L0867
EY6225L6977
WEY6506L1127
WEY574B6967
WEY6506L1377
WEY7300L6957
WEY6506L0877
WEY6506L0157
WEY6506L1147
WEY6506L0317
WEY6506L0847
WEY6506L1137
WEY6506L1357
WEY6506L1347
WEY6506L0837
WEY6506L1067
WEY6506L1457
WEY6606L4957
WEY6506L1467
WEY6506L1187
WEY6506L2308
WEY6506Y3247
WEY6506Y2007
EY6261B6027
WEY6506L0887
WEY6506K9217
EY6230K9218
EY6230L0207
WEY6505X7928
WEY6506K8108
1
1
1
1
1
1
1
1
1
1
1
1
2
1
27
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
2
1
4
8
1
1
1
2
3
FIXATION COVER ASSEMBLY
O-RING
4
47
5
C-TYPE RING
6
THRUST PLATE
BIT HOLDER SPRING
BIT HOLDER
7
8
9
FIXATION COVER
SLIDER
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
-
STEEL BALL
3.5
ANVIL
STEEL BALL
*B
*B
(2PCS/PK)
HAMMER
STEEL BALL
(27PCS/PK)
THRUST PLATE
HAMMER SPRING
SPRING FIXING PLATE
DUST PREVENT RUBBER
THRUST PLATE
DRIVING SHAFT
PLANET GEAR
*B
*B
(2PCS/PK)
(2PCS/PK)
PIN
THRUST PLATE
DRIVING BLOCK
RING GEAR
BEARING
MOTOR ROTOR ASSEMBLY
STATOR
BRUSH ASSEMBLY
F/R SELECTOR HANDLE
SWITCH
SEMS SCREW
*C
K3-5
THRUST PLATE
M-TIGHT SCREW
TORX TAPPING SCREW
DUST PREVENTIVE PLATE
PHILLIPS BIT
OPERATING INSTRUCTIONS
*C
*C
K4-22
K3-20
(+) 65mm
**Battery Pack, and Tool Case are available as an optional accessory.
See the nearest sales dealer for details.
***For replacement parts of charger, see the charger service manual.
Charger complete set is available as an optional accessory. See the nearest sales dealer for details.
8
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