Panasonic Impact Driver EY7540 U1 User Manual

ORDER NO. PTD0609U42CE  
F16  
Cordless Impact Driver  
EY7540-U1  
SPECIFICATIONS  
CONTENTS  
Page  
Page  
1 SCHEMATIC DIAGRAM  
2
2
3
7
5 CHECK PARTS IDENTIFY PROCEDURE  
6 EXPLODED VIEW  
9
11  
12  
2 WIRING CONNECTION DIAGRAM  
3 DISASSEMBLY/ASSEMBLY INSTRUCTIONS  
4 TROUBLESHOOTING GUIDE  
7 REPLACEMENT PARTS LIST  
© 2006 Matsushita Electric Works Ltd. All rights  
reserved. Unauthorized copying and distribution is a  
violation of law.  
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EY7540-U1 /  
3 DISASSEMBLY/ASSEMBLY INSTRUCTIONS  
Ref. No. 1A  
Procedure 1A  
Removal and attachment of the Housings.  
1. Loosen the belt hook bolt turning it counterclockwise, using a  
coin or a flat blade screwdriver.  
2. Take out the belt hook.  
3. Remove nine housing screws.  
4. Open the housing B.  
NOTE :  
The housing A and B is tightened as the motor mounting base  
is joint fitting.  
Hold the housing B and take it out vertically.  
5. Take out the fixation cover, protectors and anvil block.  
(Removal)  
NOTE :  
When opening the housings, make sure that the main PCB is  
on the housing A.  
If the main PCB sticks in the housing B and pull it out from the  
housing A, the ribbon cable may be defected.  
3
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EY7540-U1 /  
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 with care of hitching  
FET.  
NOTE :  
Make sure that there is no metal powder around the motor rotor.  
Ref. No. 1C  
Procedure 1A 1B 1C  
Removal of the Driving Block.  
1. Take out the planet gears and pins slightly tapping the driving  
block on the table.  
4
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EY7540-U1 /  
Ref. No. 1D  
Procedure 1A 1B 1C1D  
Removal and attachment of the Switch.  
1. Take out the switch assembly from the housing.  
(Attachment)  
1. Connect the motor lead wires.  
2. Insert the connectors into the FET, the main PCB and the motor  
stator.  
NOTE :  
Make sure to handle the ribbon cable gently in order to avoid the  
breakage.  
Apply the grease (FLOIL) on the places where insert into the  
connectors.  
5
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EY7540-U1 /  
Ref. No. 1E  
Procedure 1A 1B 1C1D1E  
Assembly of the Driving Block.  
1. Press fit the lead wires firmly.  
2. Place the ribbon cable properly without getting caught in the lead  
wires.  
6
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EY7540-U1 /  
4 TROUBLESHOOTING GUIDE  
(Refer to WIRING CONNECTION DIAGRAM)  
7
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EY7540-U1 /  
8
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EY7540-U1 /  
5 CHECK PARTS IDENTIFY PROCEDURE  
9
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EY7540-U1 /  
10  
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EY7540-U1 /  
6 EXPLODED VIEW  
11  
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EY7540-U1 /  
7 REPLACEMENT PARTS LIST  
NOTE:  
*B=only available as set  
*C=available individually  
Ref.No.  
1
Part No.  
WEY7540K3078  
WEY7540K4058  
WEY6507K1166  
WEY6507L0856  
WEY6507L0196  
WEY7540K3717  
WEY7540K3107  
WEY7540L3137  
WEY6505L0866  
WEY6507L6976  
WEY7540L1128  
WEY7540L1067  
WEY7201L6966  
WEY7540L1377  
WEY7300L6956  
WEY6505L0896  
WEY7540L0217  
WEY6508L1146  
WEY7540L1137  
WEY6504L1357  
WEY6506L1346  
WEY7540L0028  
WEY7201L4956  
WEY7201L0986  
WEY7201L3746  
WEY7540L1467  
WEY7540L1187  
WEY7540L2108  
WEY7540L2128  
WEY7540L2067  
WEY7540K2007  
WEY7540L2157  
WEY7540K3217  
WEY6470K3186  
WEY7540H0407  
WEY7540L0167  
WEY7540K3338  
WEY7540H3247  
WEY6230K9216  
WEY9633K7018  
WEY7540K8108  
Part Name & Description  
HOUSING AB SET  
Remarks  
Per Unit  
1
1
1
1
1
1
1
1
1
2
1
1
2
1
27  
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
9
1
1
2
FIXATION COVER ASSEMBLY  
C-TYPE RING  
3
4
THRUST PLATE  
5
BIT HOLDER SPRING  
BIT HOLDER  
6
7
NOSE PROTECTOR  
FIXATION COVER  
SLIDER  
8
9
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  
39  
-
STEEL BALL  
*B  
5/32 (2PCS/PK)  
7/32 (2PCS/PK)  
ANVIL  
DRIVING SHAFT ASSEMBLY  
STEEL BALL  
*B  
*B  
HAMMER  
STEEL BALL  
(27PCS/PK)  
THRUST PLATE  
HAMMER SPRING  
SPRING FIXING PLATE  
DRIVING SHAFT  
PLANET GEAR  
*B  
*B  
(2PCS/PK)  
(2PCS/PK)  
PIN  
MOTOR MOUNTING PLATE ASSEMBLY  
BEARING  
O-RING  
MOTOR MOUNTING PLATE  
MOTOR ROTOR ASSEMBLY  
STATOR  
MODULE ASSEMBLY  
CONTROL PCB  
RIBBON CABLE  
SWITCH ASSEMBLY  
BATTERY TERMINAL BLOCK  
BELT HOOK SET  
BELT HOOK BOLT  
HOOK RELEASE LEVER  
SPRING FOR RELEASE LEVER  
OPERATION PANEL  
F/R SELECTOR HANDLE  
TORX TAPPING SCREW  
TOOL CASE  
(SH)  
*C  
K3-20  
(SH)  
(SH)  
-
OPERATING INSTRUCTIONS  
**Battery Pack is 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.  
12  
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