Panasonic EYFMA1B User manual

© Panasonic Corporation 2015. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
Order Number PTD1512E08CE
Cordless Impact Wrench
Model No. EYFMA1B
Model No. EYFMA1J
Model No. EYFMA1JR
Europe
TABLE OF CONTENTS
PAGE PAGE
1 Warning -------------------------------------------------------------- 2
2 Specifications ----------------------------------------------------- 2
3 Troubleshooting Guide ----------------------------------------- 3
4 Service Fixture and Adjustment----------------------------- 6
5 Disassembly and Assembly Instructions ---------------- 9
6 Measurements and Adjustments---------------------------15
7 Schematic Diagram ---------------------------------------------16
8 Wiring Connection Diagram ---------------------------------17
9 Exploded View and Replacement Parts List -----------18

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1Warning
Caution:
• Pb free solder has a higher melting point that standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher. Please
use a soldering iron with temperature control and adjust it to 750 ± 20°F (400 ± 10°C). In case of using high temperature solder-
ing iron, please be careful not to heat too long.
• Pb free solder will tend to splash when heated too high (about 1100°F / 600°C).
2 Specifications

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3 Troubleshooting Guide

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4 Service Fixture and Adjustment
4.1. Check Parts Identify Procedure

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5 Disassembly and Assembly Instructions
5.1. Disassembly Instructions
Ref. No. 1A Procedure 1A Removal of Fixation cover.
1. Remove four screws where tightening fixation cover.
2. Pull off the fixing cover assembly.
3. Once removing the fixing cover, the driving shaft assembly may come
out.
Ref. No. 1B Procedure 1A 1B Removal of Anvil.
1. Pull the anvil out from the fixation cover.

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Ref. No. 1C Procedure 1A 1B 1C Removal of Housing.
1. Remove nine housing screws.
2. Then open the housing A and B.
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 hous-
ing A, the ribbon cable may be defected.
Ref. No. 1D Procedure 1A 1B 1C 1D Removal of Ribbon cable (FPC).
1. Slightly lift up the connector.
NOTE:
Do not pull the connector firmly because it is not able to take out
completely.
2. Take out the ribbon cable.

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Ref. No. 1E Procedure 1A 1B 1C 1D 1E Removal of Motor assembly.
1. Separate the motor assembly from the driving shaft assembly.
2. Take out the motor rotor assembly from the motor stator.
NOTE:
Make sure not to damage the magnet by motor rotor.
NOTE:
Make sure not to scratch FET circuit by motor rotor.

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5.2. Reassembly Instructions
Ref. No. 2A Procedure 2A Assembly of Motor assembly.
1. Confirm if the metal powder is stuck around the rotor. If so, take out
by something like packaging tape.
2. Insert the motor rotor into the stator.
NOTE:
Confirm the coil does not touch with the fan.
Ref. No. 2B Procedure 2A 2B Assembly of Main PCB.
1. Set the DIP switch on the main circuit board with a toothpick.
NOTE:
Do not use a metal pick.

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Ref. No. 2C Procedure 2A 2B 2C Assembly of Switch and Motor assembly.
1. Attach the quick connect terminal of the white lead wire from the
motor stator with the switch assembly (M+).
2. Apply grease (FLOIL AH-137N-2 / WEWGW2) on the both side and
both end of ribbon cable where insert into the connectors.
NOTE:
Confirm if there is no dust or any foreign substances.
3. Slightly lift the connector up.
NOTE:
Do not pull the connector forcefully. It does not separate from the
other connector.
4. Insert the ribbon cable into the motor stator and the main PCB.
NOTE:
Make sure to handle the ribbon cable gently in order to avoid the
breakage.
5. Insert the quick connect terminal of motor lead wire (black) into the (-)
side of terminal block.
6. Insert the connector of harness into the main PCB.
7. Connect the black lead wire into the (-) side of terminal block and the
read lead wire goes to (+) side of terminal block.

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Ref. No. 2D Procedure 2A 2B 2C 2D Assembly of Driving assembly.
1. Confirm to attach the fixing rubber on Housing B.
2. Insert the motor and driving shaft assembly into the housing.
3. Confirm to set the motor lead wire (white) under the black lead wire
and confirm if there is no pinching with switch.
4. Place the battery terminal lead wire (black) is over the wire (red) prop-
erly.
NOTE:
Press fit the lead wires firmly.
Place the ribbon cable properly without getting caught in the lead
wires.

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6 Measurements and Adjustments
6.1. Trial Operation (after checking Troubleshooting Guide.)
A. ASSEMBLY
Confirm if there is NO gap between Housing A and B by pinching the lead wires.
Confirm all screws are tightened firmly.
Confirm if there is no deformation on the battery terminal.
B. OPERATION
Confirm if SWITCH and LED turn ON and OFF.
Confirm if F/R selector handle works smoothly and their rotation.
Change the rotation speed in proportion to the amount of pushing level on switch trigger.
There should be no metallic sound and abnormal sound when shaking up-down and right-left.
There should be no abnormal vibration.
C: TOOL SETTING
Engage the switch briefly to reactivate the display and select the model by pressing the remote control.
Confirm if all lamps are lid for one second and indicate the proper display for three seconds.

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7 Schematic Diagram

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8 Wiring Connection Diagram

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9 Exploded View and Replacement Parts List
9.1. Exploded View for EYFMA1B

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9.2. Replacement Parts List for EYFMA1B
Safety Ref. No. Part No. Part Name & Description Quantity Remarks
1 WEYFMA1BK308 HOUSING AB SET 1
2 WEYFMA1JL968 TIGHT SCREW W/WASHER 4 (M4*25)
3 WEYFMA1JS317 FIXATION COVER 1
4 WEY6631K0867 SLIDER 1
5 WEYFMA1BL119 ANVIL 1
6 WEYFMA1JL107 DRIVING SHAFT ASSEMBLY 1
7 WEY6504L1357 PLANET GEAR 2 (2PCS/PK)
8 WEY6506L1346 PIN 2 (2PCS/PK)
9 WEYFLA1AL007 MOTOR MOUNTING PLATE ASSEMBLY 1
10 WEYFLA1AL497 BEARING 1
11 WEYT611L0967 O-RING 1 (43.6*1.3)
12 WEYFLA1AL147 MOTOR ROTOR ASSEMBLY 1
13 WEYFMA1JL028 STATOR 1
14 WEYFLA1AK207 SWITCH ASSEMBLY 1
15 WEY7540L2157 BATTERY TERMINAL BLOCK 1
16 WEYFLA1AL207 RIBBON CABLE 1
17 WEYFMA1JL218 MODULE ASSEMBLY 1
18 WEYFLA1AL297 HARNESS 1
19 WEYFLA3JL227 LED ASSEMBLY 1
20 WEYFLA1AK337 OPERATION PANEL 1
21 WEYFLA1AK327 F/R SELECTOR HANDLE 1
22 WEYFLA1AL377 TIGHTENING CONFIRMATION LAMP COVER 1
23 WEYFMA1JL337 DISCERNMENT PLATE 1
24 WEY6930K9037 TIGHT SCREW 9 (K3*20)
- WEYFLA4AR819 OPERATING INSTRUCTIONS 1
- WEY002X8977 DOUBREX GREASE 1
- WEWGW2 FLOIL GREASE 1

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9.3. Exploded View for EYFMA1J