Panasonic EY7552 User manual

© Panasonic Corporation 2013. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
Order Number PTD1309X25CE
Cordless Impact Wrench
Model No. EY7552
Europe
Oceania
TABLE OF CONTENTS
PAGE PAGE
1 Warning -------------------------------------------------------------- 2
2 Specifications ----------------------------------------------------- 2
3 Troubleshooting Guide ----------------------------------------- 3
4 Disassembly and Assembly Instructions ---------------- 6
5 Wiring Connection Diagram ---------------------------------16
6 Schematic Diagram ---------------------------------------------16
7 Exploded View and Replacement Parts List -----------17

2
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

3
3 Troubleshooting Guide
3.1. Troubleshooting Guide

4

5
3.2. Trial Operation (after checking Troubleshooting Guide)
3.2.1. Assembly
• Confirm if there is no gap between housing A and B by pinching lead wires.
• There is no dust or deformation on battery terminals.
3.2.2. Operation
• Check whether the tool operates properly in both the forward and reveres directions.
• Press the BATTERY LEVEL INDICATOR ON button, and confirm that the LED turns on, then turns off after 10 seconds. Also,
check that the LED turns off when the trigger is pulled while the LED is lit.
• Check whether the tool speed increases continuously as the trigger is gradually engaged.
• Check whether the tool speed is normal after repair and reassembly.
Rotating speed: 0 to 1350 rpm
• Check whether the tool become hot in a short operation.
• Check whether impact operation functions properly.
Apply impact to an M16 or M20 bolt, and confirm that the impact operation functions properly.
3.2.3. Integrity
• With the switch activated, shake the tool back and forth and up and down and verify that its sound does not change excessively.
• Check for the presence of any dirt or foreign matter from the repair process on the outside of the tool.

6
4 Disassembly and Assembly Instructions
*To assemble the tool, start with 4.10 and proceed to 4.1
4.1. How to remove the housing B

7

8
4.2. Removing the interior components
4.3. How to removing the Motor block and Driving block from the Motor
assembly

9
4.4. Removing the Switch assembly, ring gear and ring gear cover from the
motor assembly

10
4.5. Removing the Module assembly from the Switch assembly

11
4.6. Important note regarding the installation of ring gear and ring gear
cover

12
4.7. Important note regarding the installation of internal assemblies in hous-
ing A
4.8. Important note regarding the installation of O-ring in shaft cover assem-
bly

13
4.9. Important note regarding the installation of case attachment and shaft
cover assembly

14
4.10. Precautions when attaching the nose protector

15
4.11. Wiring and assembly Points

16
5 Wiring Connection Diagram
6 Schematic Diagram

17
7 Exploded View and Replacement Parts List
7.1. Exploded View

18
7.2. Replacement Parts List
Safety Ref. No. Part No. Part Name & Description Quantity Remarks
1 WEY7552H3079 HOUSING AB SET 1 (for EUROPE)
1 WEY7552H3070 HOUSING AB SET 1 (for OCEANIA)
2 WEY7552L6417 HEXAGON COUPLING BOLT 4 (M4)
3 WEY7552K3107 NOSE PROTECOR 1
4 WEY7552S3747 SHAFT COVER ASSEMBLY 1
5 WEY7552K0857 THRUST PLATE 1
6 WEY7552L0967 O-RING 1
7 WEY7552K3537 CASE ATTACHMENT 1 (Upper/Lower attachment sets)
8 WEY7552W0527 CAP 1
9 WEY7552K1127 POWER SHAFT 1
10 WEY7552K0187 RETAINER RING 1
11 WEY7552K0987 O-RING 1
12 WEY7552K0847 THRUST PLATE 1
13 WEY7552L4058 DRIVING BLOCK 1
14 WEY7552K0497 STRENGTHEN RING 1
15 WEY7552K0207 BEARING SPACER 1
16 WEY7552H0867 THRUST PLATE 1
17 WEY7552C1817 RING GEAR COVER 1
18 WEY7552S1417 RING GEAR 1
19 WEY7552L1007 MOTOR ASSEMBLY 1
20 WEY7552K0308 RUBBER 1
21 WEY7552L2388 CAPACITOR 1
22 WEY7552L8398 HEAT RESISTANT TAPE 1 (30m/roll)
23 WEY6230L6027 SEMS SCREW 2 (K3*6)
24 WEY7552L2007 SWITCH ASSEMBLY 1
25 WEY7552L2107 MODULE ASSEMBLY 1
26 WEY7547H3247 F/R SELECTOR HANDLE 1
27 WEY7552K3957 OPERATION PLATE SET 1
28 WEY7552K3237 H/L COVER 1
29 WEY6930K9216 SCREW 9 (K3*20)
- WEY9L40R2788 BATTERY PACK COVER 1
- WEY9644K7018 TOOL CASE 1
- WEY7552K8109 OPERATING INSTRUCTIONS 1
- WEY004X8967 CALFOREX 1
- WEY003W8957 GREASE (PERMALUB) 1