Panasonic EY79A3 Manuale utente
© Panasonic Corporation 2020. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
ORDER NO. PTD2002E08CE
Cordless Hammer Drill & Driver
Model No. EY79A3
Europe
TABLE OF CONTENTS
PAGE PAGE
1 Warning -------------------------------------------------------------- 2
2 Specifications ----------------------------------------------------- 2
3 Troubleshooting Guide ----------------------------------------- 3
4 Disassembly and Assembly Instructions ---------------- 7
5 Exploded View and Replacement Parts List -----------13
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
soldering 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
NOTE:
Weight indication
Greater than or equal to 1 kg : indicated by 0.05 kg (0.11 lbs).
Less than 1 kg : indicated by 0.01 kg (0.02 lbs).
3
3 Troubleshooting Guide
3.1. Troubleshooting Guide
4
5
6
3.2. Trial Operation (after checking Troubleshooting Guide).
3.2.1. Assembly
• Confirm if there is no gap between housing A, B and C 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 light button on the operation panel to confirm that the LED lights up.
• Check whether the tool speed increases continuously as the trigger is gradually engaged.
• Rotate the clutch handle and check whether the clutch switches properly.
• Check if the rotation speed is normal rated value.
High: 1800/min (rpm) at 18V, 1450/min (rpm) at 14.4V
Low: 530/min (rpm) at 18V, 430/min (rpm) at 14.4V
• Press the speed setting button and check whether the speed changes to H, M, L and off (the light is off) in this order.
• Pull the trigger all the way back and check whether the tool stops rotating immediately when it is released.
• Set the clutch handle to the [ ] mark and check whether the tool rotates without any clutch operation.
• Operate (rotate) the keyless chuck and check whether the chuck's three jaws move smoothly.
• Attach a bit to the tip of the driver and verify that the driver can be rotated by hand to tighten a screw.
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.
7
4 Disassembly and Assembly Instructions
* To reduce the risk of injury, always remove battery pack before removing/installing the tool.
* To assemble the tool, start with 4-9 and proceed to 4-1.
4.1. Removing the Plate Hook.
4.2. Removing the Keyless Chuck.
1. Remove the M4-14 screw.
2. Remove the plate hook.
1. Use a screwdriver to turn the chuck fastening screw inside the chuck
clockwise direction, and remove the screw.
* in case of the chuck does not come loose; NOTE:
If the chuck fastening screw will not come loose, insert the allen wrench
into the chuck and lightly tap in the clockwise direction to tighten the
chuck, and then loosen the chuck fastening screw.
2. Insert the allen wrench into the chuck, and turn counterclockwise
direction with holding the unit by the vise to remove the chuck.
NOTE:
If the chuck is broken, use a allen wrench and turn counterclockwise
direction to remove the chuck.
8
4.3. Removing the Housing.
4.4. Removing the Interior Components.
1. Remove nine screws.
2. Remove housing B.
3. Remove the F/R selector handle.
4. Remove the operation panel.
5. Remove the square nut.
1. Remove the heat resistant tape and remove the interior components
from the housing A.
* Precautions when securing LED harness assembly in place using the
resistant tape.
Attach the heat resistant tape at the location shown in the figure below.
2. Remove the clutch handle, H/L change handle and click spring from
the gear block assembly.
9
4.5. Removing the Switch Assembly, LED Assembly and Battery Terminal.
4.6. Removing the Gear Case Assembly from the Module Assembly.
1. Remove the 2-pin connector.
2. Remove the 6-pin connector.
3. Pull the faston terminal directly
out from the switch assembly.
* Exercise care not to bend the ter-
minal fitting.
4. Remove the lead wires from the
battery terminal.
Connecting and disconnecting the connector
* Precautions when attaching the connectors
Holding the motor assembly, remove the entire motor mounting plate,
including the gear box assembly from the motor assembly.
10
4.7. Removing the Gear Box Block.
1. Rotate the motor mounting plate to the left and
remove it from the gear case.
* When installing the motor mounting plate to the
gear case, align and engage the two protruded sec-
tions on motor mounting plate with the two notches
on the gear case, then turn the motor mounting
plate clockwise until a clicking sound is produced to
ensure secure mounting.
2. Remove the thrust plate, planet gear B, ring gear
B and the carrier B (in that order).
3. Remove the planet gear A, carrier A, tapping
screws, gear case, and the stopper (in that order)
from the hammer/clutch block.
* The tapping screws cannot be reused after being
repaired or otherwise adjusted.
* Exercise care when attaching the ring gear A, ring
gear B and stopper to align them in the proper ori-
entation (as shown in the left figure).
* Precautions when attaching the Gear Box Block. * Precautions when attaching the grease (ALVANIA).
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