Related Manuals for Hitachi DH 45SA
Summary of Contents for Hitachi DH 45SA
- Page 1 MODELS DH 45SA POWER TOOLS TECHNICAL DATA HAMMER DRILL DH 45SA SERVICE MANUAL LIST No. E457 Apr. 2000 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT...
-
Page 2: Table Of Contents
Notice for use Specifications and parts are subject to change for improvement. Refer to Hitachi Power Tool Technical News for further information. CONTENTS [ Business Section ] Page 1. PRODUCT NAME • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •... -
Page 3: Product Name
To meet market demand for a powerful, larger capacity Hammer Drill with hexagon (13 mm) shank, the Model DH 45SA was developed as an advanced version of Model DH 40SA/YB. The key features are as follows: High performance, fast drilling speed: 80 % faster (at maximum) than DH 40SA/YB Less fatigue, comfortable operation using the soft-grip &... -
Page 4: Selling Points
4. SELLING POINTS Faster drilling speed and higher efficiency thanks to the powerful motor and greater striking energy (About 1.4 times faster than the Model DH 42) (About 1.8 times faster than the Models DH 40SA/YB) Vibration-isolating handle provided with vibration-isolating rubbers reduces operator fatigue Soft-touch handle and side handle Easy-to-use rotary type bit... -
Page 5: Selling Point Descriptions
4-1-1. Faster drilling speed The drilling speed is 40 % faster than that of the Model DH 42, as the Model DH 45SA has greater striking energy owing to the powerful motor and the total optimization of the rotation speed, striking frequency and the weight of the striker. -
Page 6: Specifications
5. SPECIFICATIONS 5-1. Specifications Capacity Drill bit (max. dia.): 45 mm (1-3/4"), core bit (max.dia.): 120 mm (4-3/4") Power source AC single phase 50 Hz or 60 Hz Voltage (V) Voltage, current, input Current (A) 13.4 12.8 11.6 1400 Input (W) No-load 300/min. -
Page 7: Optional Accessories
5-2. Optional Accessories 1. Drilling work for through-holes (rotation + striking) (1) Drill bit (hexagon shaft) Overall length (mm) 505 (19-7/8") 550 (21-5/8") 400 (15-3/4") 280 (11") Code No. Code No. Code No. Code No. Outer diameter (mm) (5/8") 985721 985720 985722 991330... - Page 8 Taper shank adapters for A-taper or A-taper 9.7 mm (3/8") x 1/20 Taper (A) 985754 B-taper shanks are provided as optional accessories. Taper shank drill bits are B-taper 12.9 mm (1/2") x 1/20 Taper (B) 985755 not provided. For Australia K-taper shank adapter 992813 (1) Drill bit (ratio shank) (2) Ratio shank adapter Code No.
- Page 9 (5) Core bit for efficient drilling Center pin (C) Core bit shank Core bit (with guide plate) Outer diameter (in.) Code No. Code No. Code No. 65 mm (2-9/16") 992814 80 mm (3-5/32") 992815 903901 992819 90 mm (3-1/2") 992816 100 mm (3-15/16") 992817 105 mm (4-1/8")
- Page 10 6. Demolition work (striking) (1) Bull point Overall length: 280 mm (11"), 450 mm (17-3/4") Code No. Overall length 981922 280 mm 981923 450 mm 7. Grooving and edging work (striking) (1) Cold chisel Overall length: 280 mm (11"), 450 mm (17-3/4") Code No.
- Page 11 10. Roughing surface work (striking) (1) Bushing tool (2) Shank Code No. 955183 Code No. Overall length 955186 250 mm (10") 11. Tamping work (striking) (1) Rammer (2) Shank Code No. 955181 Code No. Overall length 955186 250 mm (10") O.D.
-
Page 12: Comparisons With Similar Products
6. COMPARISONS WITH SIMILAR PRODUCTS 6-1. Specification Comparisons Maker HITACHI HITACHI HITACHI Model DH 45SA DH 42 DH 40SA Item Drill bit dia. (mm) 40 (1-9/16") 45 (1-3/4") 40 (1-9/16") 38 (1-1/2") Capacity Core bit dia. (mm) 120 (4-3/4") 120 (4-3/4") 105 (4-1/8") -
Page 13: Drilling Speed Comparison
Drilling speed varies considerably depending on the work conditions. Use the factory test results shown in Fig. 3 as a reference, for comparison purposes only. Drilling speed (mm/min.) Drill bit dia. Maker Model (mm) HITACHI DH 45SA HITACHI DH 42 HITACHI DH 40SA HITACHI DH 45SA HITACHI... -
Page 14: Chiseling Performance
6-3. Chiseling Performance Chiseling performance varies considerably depending on the work conditions. Use these factory test results shown in Fig. 4 as a reference, for comparison purposes only. Chiseling quantity (kg/30 min.) DH 45SA DH 42 Voltage 230 V DH 40SA Fig. -
Page 15: Precautions In Sales Promotion
7. PRECAUTIONS IN SALES PROMOTION In the interest of promoting the safest and most efficient use of the Model DH 45SA Hammer Drill by all of our customers, it is very important that at the time of sale the salesperson carefully ensures that the buyer seriously recognizes the importance of the contents of the Handling Instructions, and fully understands the meaning of the precautions listed on the Caution Plate attached to each tool. -
Page 16: Structure Of The Dh 45Sa Hammer Drill
Fig. 5 Rotation transmission Rotation transmission is described with reference to Fig. 5. The gear arrangement of the DH 45SA has the armature shaft positioned between the crank shaft and the bevel pinion shaft. Rotation of the armature shaft is transmitted to the second gear through the first gear of the crank shaft and the second pinion. - Page 17 Arrangement against idle hammering The DH 45SA is provided with an arrangement against idle hammering similar to that of the previous DH 40SA. When the drill bit or bull point is moved off the concrete material, the second hammer is shifted forward as indicated in Fig.
- Page 18 Then, turning the grip fully in B direction causes the attachment tool to be securely held in position. In contrast to the previous knob-retaining structure, the DH 45SA uses three saddle keys locked by turning the grip, which are able to securely hold the tool with a minimized deflection of the drill bit or other attachment tool.
- Page 19 Wiring connections The wiring connections are shown in Fig. 9. The Model DH 45SA adopts a plug-in module type wiring system consisting of plug (A) ass'y and plug (B) ass'y. The plug (A) ass'y connected with the internal wires of the stator is fitted into the housing.
- Page 20 The side handle consists of a steel nut in the base and a hard plastic and a soft resin outer cover molded together to form the handle. The DH 45SA thus uses the newly designed soft-touch handle and side handle for easier handling of the tool.
-
Page 21: Precautions In Disassembly And Reassembly
9. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY The [Bold] numbers in the descriptions below correspond to the item numbers in the parts list and exploded assembly diagram. 9-1. Disassembly (1) Piston and striker Remove the four Nylock Bolts (W/Flange) M5 x 16 [33] at the Crank Case Cover Ass'y [35] , and remove the latter. -
Page 22: Reassembly
9-2. Reassembly Perform reassembly generally in reverse order of disassembly, following the precautions given below. (1) Lubrication Apply special grease (for hammer and hammer drill) to the following portions. Inner circumference of the Connecting Rod Ass'y [70] O-Ring (FPM710) [68] attached to the Striker [67] and the Piston [69] Inner lip portion of the Oil Seal (FPM707) [77] Fill 75 g of special grease in the Crank Case [37] of the connecting rod side and 30 g in the cylinder case. - Page 23 (4) Tool holder Insert the bent portion of the Retainer Spring [8] into the 3-mm dia. side hole of the Front Cover [14]. Apply power tool grease No.29 to the three slots of the front cover and insert the three Saddle Keys [6] into the slots each.
-
Page 24: Screw Lock Tb 1401
(5) Carbon brush inspection The motor employs auto-stop carbon brushes. When the carbon brushes near their wear limit, the current to the motor is automatically interrupted and the motor stops. At that time, replace both carbon brushes with new ones which have the same carbon brush number "74" as shown in Fig. 15. In addition, always keep the carbon brushes clean and ensure that they slide freely within the brush holders. -
Page 25: Wiring Diagrams
9-5. Wiring Diagrams For products without noise suppressor Stator Switch Armature Plug Connector For products with noise suppressor Stator Switch Armature Noise Plug suppressor Pillar terminal Fig. 16 9-6. Insulation Tests On completion of disassembly and repair, measure the insulation resistance and dielectric strength. Insulation resistance: 7 MΩ... -
Page 26: Standard Repair Time (Unit) Schedules
10. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable 60 min. MODEL Fixed Work Flow DH 45SA Housing Ass'y Stator Ass'y Seal Packing Handle Cover Gear Cover Switch (C) Needle Bearing Cord Cord Armor Armature Ass'y Tail Cover Ball Bearing Ball Bearing... -
Page 27: Assembly Diagram For Dh 45Sa
Assembly Diagram for DH 45SA --- 25 ---... - Page 28 PARTS DH 45SA ITEM CODE NO. DESCRIPTION REMARKS USED 318-758 FRONT CAP 318-757 RETAINING RING D35 318-756 FRONT WASHER (A) 318-755 DAMPER RING 318-754 GRIP 313-069 SADDLE KEY 318-752 SADDLE KEY HOLDER 318-753 RETAINER SPRING 306-437 NYLOCK HEX. SOCKET HD. BOLT M8X30...
- Page 29 DH 45SA PARTS ITEM CODE NO. DESCRIPTION REMARKS USED 318-595 GEAR COVER 993-235 DAMPER WASHER 318-745 DAMPER 318-746 DAMPER HOLDER 318-748 URETHANE RING 318-747 URETHANE RING HOLDER 318-582 RETAINING RING D40 600-8CM BALL BEARING 6008CM 318-749 CYLINDER CASE 318-451 NYLOCK BOLT (W/FLANGE) M6X35...
-
Page 30: Standard Accessories
DH 45SA PARTS ITEM CODE NO. DESCRIPTION REMARKS USED 305-558 TAPPING SCREW (W/FLANGE) D5X25 (BLACK) 944-954 BEARING WASHER 620-1VV BALL BEARING 6201VVCMPS2L 318-598 TAIL COVER 303-273 TAPPING SCREW (W/FLANGE) D5X16 318-750 SIDE COVER ASS'Y INCLUD.103,109 318-572 HANDLE PACKING (A) 991-711... - Page 31 DH 45SA OPTIONAL ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 985-721 DRILL BIT D16.0X280 (HEX. SHANK TYPE) 985-720 DRILL BIT D16.0X400 (HEX. SHANK TYPE) 985-722 DRILL BIT D16.0X505 (HEX. SHANK TYPE) 991-330 DRILL BIT D16.0X550 (HEX. SHANK TYPE) 991-331 DRILL BIT D18.0X550 (HEX. SHANK TYPE) 985-724 DRILL BIT D19.0X280 (HEX.
- Page 32 DH 45SA OPTIONAL ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 955-997 GUIDE PLATE (FOR CORE BIT 32MM) 955-998 CORE BIT 35MM INCLUD.654 955-999 GUIDE PLATE (FOR CORE BIT 35MM) 956-000 CORE BIT 38MM INCLUD.656 956-001 GUIDE PLATE (FOR CORE BIT 38MM)