Hitachi DH 24PD3, Technical Data And Service Manual

Page

CONTENTS

1. PRODUCT NAME ........................................................................................................................... 1

2. MARKETING OBJECTIVE ............................................................................................................. 1

3. APPLICATIONS .............................................................................................................................. 1

4. SELLING POINTS .......................................................................................................................... 2

4-1. Selling Point Descriptions ............................................................................................................... 2

5. SPECIFICATIONS .......................................................................................................................... 3

5-1. Specifications .................................................................................................................................. 3

5-2. Optional Accessories ...................................................................................................................... 4

6. COMPARISONS WITH SIMILAR PRODUCTS .............................................................................. 9

6-1. Specification Comparisons ............................................................................................................. 9

6-2. Drilling Speed Comparison ........................................................................................................... 10

6-3. Dust Collection Efficiency Comparison .......................................................................................... 11

7. PRECAUTIONS IN SALES PROMOTION ................................................................................... 12

7-1. Handling Instructions .................................................................................................................... 12

7-2. Caution Plate ................................................................................................................................ 12

7-3. Dust Collecting Equipment ........................................................................................................... 12

8. REFERENCE MATERIAL ............................................................................................................. 13

8-1. Lubrication .................................................................................................................................... 13

8-2. Dust Collection Mechanism .......................................................................................................... 13

8-3. Tool Structure ................................................................................................................................ 15

8-4.  "Rotation Only" and "Ro Hammering" Changeover Mechanism ...................................... 18

8-5. "Rotation Only" (no hammering) ................................................................................................... 18

8-6. Drill Bits ......................................................................................................................................... 19

8-7. Chuck Section ............................................................................................................................... 20

8-8. Dust Collector (B) ......................................................................................................................... 20

9. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY .......................................................... 22

9-1. Disassembly ................................................................................................................................. 22

9-2. Reassembly .................................................................................................................................. 26

9-3. Tightening Torque ......................................................................................................................... 29

9-4. Wiring Diagrams ........................................................................................................................... 30

9-5. Internal Wire Arrangement and Wiring Work ................................................................................ 31

9-6. Insulation Tests ............................................................................................................................. 33

9-7. No-load Current Values................................................................................................................. 33

10. STANDARD REPAIR TIME (UNIT) SCHEDULES ..................................................................... 34

Assembly Diagram for DH 24PD3