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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.

(Attachment)
1. Insert the click spring into the housing A.

NOTE :

Be sure to use the tweezers or the small flat-head screwdriver
when inserting the click spring.

3

EY7270-X8 / EY7271-X8

Summary of Contents for EY7270-X8

Page 1: ...ita Electric Works Ltd All rights reserved Unauthorized copying and distribution is a violation of law EY7270 X8 EY7271 X8 4 TROUBLESHOOTING GUIDE 7 5 CHECK PARTS IDENTIFY PROCEDURE 9 6 EXPLODED VIEW REPLACEMENT PARTS LIST 10 Cordless Impact Driver SPECIFICATIONS CONTENTS Page Page ORDER NO PTD0606X34CE ...

Page 2: ...1 SCHEMATIC DIAGRAM 2 WIRING CONNECTION DIAGRAM 2 EY7270 X8 EY7271 X8 ...

Page 3: ...e 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 Attachment 1 Insert the click spring into the housing A NOTE Be...

Page 4: ...om 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 Remove the thrust plate 2 Take out the planet gears and pins slightly tapping the driving block on the table 4...

Page 5: ... motor lead wires NOTE Do not push the area where marked the arrow in order to prevent the breakage 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 EY7270 X8 EY7271 X8 ...

Page 6: ...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 EY7270 X8 EY7271 X8 ...

Page 7: ...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 NO Repair contacts AND BATTERY PACK Check for proper terminal contacts OK CHECK MOTOR ROTOR NO Replace motor Check the condition of rotor if there is any wear crack and deformation rotor assembly OK CHECK MOTOR STATOR NO Rep...

Page 8: ...ndition of anvil If no less than 1mm from vibration the corner at A side or 0 5mm from the corner at B side anvil is OK OK CHECK HAMMER NO Replace hammer Check wear condition of hammer If no less than 2mm from the corner at C side or 1mm from the corner at D side hammer is OK 8 EY7270 X8 EY7271 X8 ...

Page 9: ...5 CHECK PARTS IDENTIFY PROCEDURE 9 EY7270 X8 EY7271 X8 ...

Page 10: ...6 EXPLODED VIEW REPLACEMENT PARTS LIST 6 1 EY7270 EXPLODED VIEW 10 EY7270 X8 EY7271 X8 ...

Page 11: ...TE 1 21 WEY7200L1137 DRIVING SHAFT 1 22 WEY6506L1356 PLANET GEAR B 2PCS PK 2 23 WEY6506L1346 PIN B 2PCS PK 2 24 WEY7201L0026 MOTOR MOUNTING PLATE ASSEMBLY 1 25 WEY7201L4956 BEARING 1 26 WEY7201L0986 O RING 1 27 WEY7201L3746 MOTOR MOUNTING PLATE 1 28 WEY7270L1467 MOTOR ROTOR ASSEMBLY 1 29 WEY7270L1187 STATOR 1 30 WEY7270L2127 MODULE ASSEMBLY 1 31 WEY7270L2067 RIBBON CABLE 1 32 WEY7200L0336 RUBBER 1...

Page 12: ...6 3 EY7271 EXPLODED VIEW 12 EY7270 X8 EY7271 X8 ...

Page 13: ... PLATE 1 14 WEY7270L1467 MOTOR ROTOR ASSEMBLY 1 15 WEY7270L1187 STATOR 1 16 WEY7270L2127 MODULE ASSEMBLY 1 17 WEY7270L2067 RIBBON CABLE 1 18 WEY7200L0336 RUBBER 1 19 WEY7270K2007 SWITCH ASSEMBLY 1 20 WEY7200L2338 LED 1 21 WEY7200L2157 BATTERY TERMINAL BLOCK 1 22 WEY7200Y3247 F R SELECTOR HANDLE 1 23 WEY7270K3258 OPERATION PANEL 1 24 WEY7201L0166 SPRING 1 25 WEY7201Y3216 BELT HOOK SET 1 26 WEY6470K...

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