Hitachi Koki USA DH 40SA User Manual

1816

7 mm

17 mm

English

GENERAL OPERATIONAL PRECAUTIONS

WARNING! When using electric tools, basic safety

precautions should always be followed to reduce the risk of fire, electric shock and personal injury, including the following. Read all these instructions before operating this product and save these instructions. For safe operations:

1. Keep work area clean. Cluttered areas and benches invite injuries.

2. Consider work area environment. Do not expose power tools to rain. Do not use power tools in damp or wet locations. Keep work area well lit. Do not use power tools where there is risk to cause fire or explosion.

3. Guard against electric shock. Avoid body contact with earthed or grounded surfaces. (e.g. pipes, radiators, ranges, refrigerators).

4. Keep children away. Do not let visitors touch the tool or extension cord. All visitors should be kept away from work area.

5. Store idle tools. When not in use, tools should be stored in a dry, high or locked up place, out of reach of children.

6. Do not force the tool. It will do the job better and safer at the rate for which it was intended.

7. Use the right tool. Do not force small tools or attachments to do the job of a heavy duty tool. Do not use tools for purposes not intended; for example, do not use circular saw to cut tree limbs or logs.

8. Dress properly. Do not wear loose clothing or jewellery, they can be caught in moving parts. Rubber gloves and non-skid footwear are recommended when working outdoors. Wear protecting hair covering to contain long hair.

9. Use eye protection. Also use face or dust mask if the cutting operation is dusty.

10. Connect dust extraction equipment. If devices are provided for the connection of dust extraction and collection facilities ensure these are connected and properly used.

11. Do not abuse the cord. Never carry the tool by the cord or yank it to disconnect it from the receptacle. Keep the cord away from heat, oil and sharp edges.

12. Secure work. Use clamps or a vise to hold the work. It is safer than using your hand and it frees both hands to operate tool.

13. Do not overreach. Keep proper footing and balance at all times.

14. Maintain tools with care. Keep cutting tools sharp and clean for better and safer performance. Follow instructions for lubrication and changing accessories. Inspect tool cords periodically and if damaged, have it repaired by authorized service center. Inspect extension cords periodically and replace, if damaged. Keep handles dry, clean, and free from oil and grease.

15. Disconnect tools. When not in use, before servicing, and when changing accessories such as blades, bits and cutters.

16. Remove adjusting keys and wrenches. Form the habit of checking to see that keys and adjusting

wrenches are removed from the tool before turning it on.

17. Avoid unintentional starting. Do not carry a plugged-in tool with a finger on the switch. Ensure switch is off when plugging in.

18. Use outdoor extension leads. When tool is used outdoors, use only extension cords intended for outdoor use.

19. Stay alert. Watch what you are doing. Use common sense. Do not operate tool when you are tired.

20. Check damaged parts. Before further use of the tool, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving parts, free running of moving parts, breakage of parts, mounting and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced by an authorized service center unless otherwise indicated in this handling instructions. Have defective switches replaced by an authorized service center. Do not use the tool if the switch does not turn it on and off.

21. Warning The use of any accessory or attachment, other than those recommended in this handling instructions, may present a risk of personal injury.

22. Have your tool repaired by a qualified person. This electric tool is in accordance with the relevant safety requirements. Repairs should only be carried out by qualified persons using original spare parts. Otherwise this may result in considerable danger to the user.

PRECAUTIONS ON USING HAMMER DRILL

䡬 Wear earplugs to protect your ears during operation. 䡬 Do not touch the bit during or immediately after

operation. The bit becomes very hot during operation and could cause serious burns.

䡬 Before starting to break, chip or drill into a wall,

floor or ceiling, thoroughly confirm that such items as electric cables or conduits are not buried inside.

䡬 Always hold the body handle and side handle of

the power tool firmly. Otherwise the counterforce produced may result in inaccurate and even dangerous operation.

English

SPECIFICATIONS

Voltage (by areas)* (110V, 115V, 120V, 127V, 220V, 230V, 240V)

Power input 950 W*

Capacity Drill bit: 40 mm

No load speed 360/min.

Full-load impact rate 2800/min.

Weight (without cord, side handle) 6.5 kg

•Be sure to check the nameplate on product as it is subject to change by areas.

Core bit: 105 mm

STANDARD ACCESSORIES

(1) Case (Molded plastic) .............................................. 1

(2) Side Handle ............................................................... 1

(3) Stopper ....................................................................... 1

(4) Hexagon Bar Wrench (for 6 mm screw) ............ 1

(5) Hexagon Bar Wrench (for 5 mm screw) ............ 1

(6) Hammer Grease A ................................................... 1

(7) Dust cup ..................................................................... 1

Standard accessories are subject to change without notice.

OPTIONAL ACCESSORIES (sold separately)

䡬 Through-hole drilling (Rotation + Striking)

(1) Drill bit (hexagon shank)

Overall length: 280, 400, 505 mm External dia.: 16, 19, 22, 25, 28, 32, 38 mm

䡬 Anchor hole drilling (Rotation + Striking)

(3) Cotter

(1) Drill bit (taper shank)

External dia.: 11, 12, 14.

Taper shank adapter

Morse taper (No. 1)

Morse taper (No. 2)

A-taper

B-taper

3, 14.5, 17. 5, 21.5 mm

Application drill bit

Drill bit (taper shank) 11, 12, 14.3, 14.5, 17.5 mm

Drill bit (tape shank)

21.5 mm

Taper shank adapter formed Ataper or B-taper is provided as optional accessory, but drill bit for it is not provided.

(2) Taper shank

adapter

䡬 Large dia. hole boring (Rotation + Striking)

(1) Center

(1) Center pin

䢇 Applied to core bits from 38 mm to 105 mm 䢇 Applied to core bits 32 mm and 35 mm

NOTE

Do not use core bits 25 mm or 29 mm.

(2) Core bit 䢇 External dia. 25, 29, 32, 35, 38, 45, 54, 64, 79, 94,

105 mm (with guide plate, not applicable to cores 25 mm or 29 mm)

(3) Core bit shank

䢇 Applied to core bits above 38 mm 䢇 Applied to core bits below 35 mm 䡬 Anchor work (for self-drilling anchors)

(1) Anchor adapter (for Rotation + Striking)

Anchor sizes: W1/4, W5/16, W3/8, W1/2, W5/8 (No. 20) (No. 25) (No. 30) (No. 40) (No. 50)

䡬 Crushing (Striking)

䡬 Groove digging and edging (striking)

(Guide plate)

(1) Bull point

(1) Cold chisel

(2) Core

bit

(2) Drift key

Overall length: 280, 450 mm

(3) Core bit

shank

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䡬 Asphalt cutting (striking)

(1) Cutter

䡬 Syringe (for chip removal)

䡬 Hammer grease A

500 g (in a can)

30 g (in a green tube) Optional accessories are subject to change without notice.

APPLICATIONS

䡬 Drilling holes in concrete 䡬 Drilling anchor holes 䡬 Crushing concrete, chipping, digging, and squaring

(by applying optional accessories)

PRIOR TO OPERATION

1. Power source

Ensure that the power source to be utilized conforms to the power requirements specified on the product nameplate.

2. Power switch

Ensure that the power switch is in the OFF position. If the plug is connected to a power receptacle while the power switch is in the ON position, the power tool will start operating immediately, which could cause a serious accident.

3. Extension cord

When the work area is removed from the power source, use an extension cord of sufficient thickness and rated capacity. The extension cord should be kept as short as practicable.

4. How to install tool

NOTE

For tools such as a bull point and a cold chisel, use only Hitachi genuine parts.

(1) Clean, then smear the tool shank with the grease

provided in the green tube (Fig. 1).

(2) The grip can be rotated manually at an 60° angle.

Fully turn the grip in the direction of the arrow A as shown in Fig. 2 so that the is aligned with the (Fig. 2)

(3) Insert the shank of the tool until it makes contact

with the back side of the hole. (Fig. 2)

(4) Turn the grip in the direction of “Lock

the

mark on the grip is aligned with the mark on the front sleeve. The tool is locked. Remove the drill bit in the reverse order. (Fig. 2)

5. Fixing Dust cup

When a worker is engaged in an operation with the main body faced upward, if a dust cup is fixed to a drill bit, the inside of a tool holder can be prevented from any possible invasion of dust. The dust cup should be fixed as explained below.

(1) Insert the dust cup into the drill bit. (Fig. 3) (2) Fix the drill bit to the tool holder. (Fig. 4)

mark on the front sleeve.

mark on the grip

” so that

(3) Insert the drill bit until it hits the end of the hole,

and make sure that the dust cup is not in contact with the tool holder. If the dust cup is found to be in contact with the tool holder, shift it a little forward.

HOW TO USE THE HAMMER DRILL

1. How to drill holes (Fig. 5)

(1) Pull the switch trigger after applying the drill bit tip

to the drilling position.

(2) It is unnecessary to forcibly press the hammer drill

main body. It is sufficient to slightly press the hammer drill to an extent that shavings are freely discharged.

CAUTION

Although this machine is equipped with a safety clutch, if the drill bit becomes bound in concrete or other material, the resultant stoppage of the drill bit could cause the machine body to turn in reaction. Ensure that the main handle and side handle are gripped firmly during operation.

2. How to chip or crush (Fig. 6)

By applying the drill bit tip to the chipping or crushing position, operate the hammer drill by utilizing its empty weight. Forcible pressing or thrusting is unnecessary.

3. Install the stopper (Fig. 7)

(1) Loosen the side handle and insert the straight portion

of the stopper into the handle bolt hole.

(2) Move the stopper to the specified position and rotate

the side handle clockwise to fix the stopper.

4. Warming up (Fig. 8)

The grease lubrication system in this unit may require warming up in cold regions. Position the end of the bit so makes contact with the concrete, turn on the switch and perform the warming up operation. Make sure that a hitting sound is produced and then use the unit.

CAUTION

When the warming up operation is performed, hold the side handle and the main unit securely with both hands to maintain a secure grip and avoid being turned around by the drill.

DRILLING AND DRIVING-IN OPERATIONS FOR ANCHORS

Use the optional accessories for anchors, such as anchor adapter and taper shank adapter.

1. When a rotation striking anchor adapter is used.

(1) Install the self-drilling anchor in the anchor adapter

(Fig. 9).

(2) Turn ON the switch and drill a base hole with the

self-drilling anchor. (Fig. 10) At the start of the hole-drilling slightly tilt the hammer drill to determine the hole position.

(3) After cleaning out dust with a syringe, attach the

plug to the anchor tip and drive in the anchor with a manual hammer.

(4) After driving in the anchor, use the drift key to

separate the anchor. (Fig. 11)

(5) By employing a manual hammer or pliers, snap off

the tapered portion of the anchor. (Fig. 12)

CAUTION

Since the snapped-off tapered portion will fly out, pay attention to the snapping direction.

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