Panasonic EY7540-U1 user manual

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ORDER NO. PTD0609U42CE
F16
Cordless Impact Driver
EY7540-U1
SPECIFICATIONS
CONTENTS
Page Page
1 SCHEMATICDIAGRAM 2 5 CHECK PARTS IDENTIFY PROCEDURE 9
2 WIRINGCONNECTION DIAGRAM 2 6 EXPLODEDVIEW 11
3 DISASSEMBLY/ASSEMBLYINSTRUCTIONS 3 7 REPLACEMENTPARTSLIST 12
4 TROUBLESHOOTINGGUIDE 7
© 2006 Matsushita Electric Works Ltd. All rights
reserved. Unauthorized copying and distribution is a
violation of law.

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EY7540-U1 / 1 SCHEMATICDIAGRAM 2 WIRINGCONNECTIONDIAGRAM 2

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EY7540-U1 / 3 DISASSEMBLY/ASSEMBLYINSTRUCTIONS 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

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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 Pro

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EY7540-U1 / Ref. No. 1D Procedure 1A→→→→ 1B→→→→ 1C→→→→1D 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→→→→ 1C→→→→ 1D→→→→ 1E 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 TROUBLESHOOTINGGUIDE (Refer to WIRING CONNECTION DIAGRAM) 7

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EY7540-U1 / 8

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EY7540-U1 / 5 CHECKPARTSIDENTIFYPROCEDURE 9

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EY7540-U1 / 10

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EY7540-U1 / 6 EXPLODEDVIEW 11

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EY7540-U1 / 7 REPLACEMENTPARTSLIST NOTE: *B=only available as set *C=available individually Ref.No. Part No. Part Name & Description Remarks Per Unit 1 WEY7540K3078 HOUSING AB SET 1 2 WEY7540K4058 FIXATION COVER ASSEMBLY 1 3 WEY6507K1166 C-TYPE RING 1 4 WEY6507L0856 THRUST PLATE 1 5 WEY6507L0196 BIT HOLDER SPRING 1 6 WEY7540K3717 BIT HOLDER 1 7 WEY7540K3107 NOSE PROTECTOR 1 8 WEY7540L3137 FIXATION COVER 1 9 WEY6505L0866 SLIDER 1 10 WEY6507L6976 STEEL BALL *B 5/32 (2PCS/PK) 2 11 WEY7540L1128 ANVI