PDF《H 50》

operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools. f) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control. g) Use the power tool, accessories and tool bits etc., in accordance with these instructions and in the manner intended for the particular type of power tool, taking into account the working conditions and the work to be performed. Use of the power tool for operations di?erent from intended could result in a hazardous situation. 5) Service a) Have your power tool serviced by a quali?ed repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained. PRECAUTION Keep children and in?rm persons away. When not in use, tools should be stored out of reach of children and in?rm persons. English

4 DEMOLITION HAMMER SAFETY WARNINGS 1. Wear ear protectors. Exposure to noise can cause hearing loss. 2. Use auxiliary handles supplied with the tool. Loss of control can cause personal injury. 3. Wear protective glasses to protect your eyes. 4. Wear a mask when turning your head upward. 5. Properly set the stop lever. Bushing Hammer (for roughing concrete and stone surfaces) (Code No. 955183) Shank (for rammer and bushing hammer) (Code No. 955625) ? Bushing Hammer + Shank ? Rammer + Shank Scoop (for digging ground in various foundation work) (Code No. 980034) Electric Hammer Oil (one liter) (Code No. 955009) Optional accessories are subject to change without notice. 6. Since the bit becomes very hot during operation, exercise extremes very hot. 7. Safe operation depends on one'

s stable posture. 8. At the start of work, con?rm the oil supply and screw tightening. 9. When working at a highly elevated location, pay attention to articles and persons below. 10. Before starting breaking or chipping a wall, ?oor, or ceiling, thoroughly con?rm that no items such as an electric cable or conduit are buried inside. 11. Wear protective shoes to protect your feet. SPECIFICATIONS Voltage (by areas)* (110 V,

115 V,

120 V,

127 V,

220 V,

230 V,

240 V) Power Input

1140 W* Full-load impact rate 2100/min Weight (without cord)

8 kg * Be sure to check the nameplate on product as it is subject to change by areas. STANDARD ACCESSORIES (1) Case

1 (2) Bull Point (Total Length

320 mm)1 (3) Side Handle

1 (4) Oil Feeder

1 (5) Hexagon Bar Wrench.1 (6) Wrench

1 Standard accessories are subject to change without notice. OPTIONAL ACCESSORIES (sold separately) Bull Point (for crushing) Total length

450 mm Code No.

955623 Cutter (for crushing asphalt) (Code No. 955629) Cold Chisel (for grooving and squaring) Total length

320 mm

450 mm Code No.

955614 955624 Rammer (for tamping sand and gravel) (Code No. 955181)

5 English APPLICATIONS Crushing concrete, chipping, digging, and squaring. Application examples: Installation of piping and wiring, sanitary facility installation, machinery installation, water supply and drainage work, interior jobs, harbor facilities and other civil engineering works. PRIOR TO OPERATION 1. Power source Ensure that the power source to be utilized conforms to the power requirements speci?ed on the product nameplate. 2. Grounding This tool should be grounded while in use to protect the operator from electric shock. The tool is equipped with a three conductor cord and grounding type plug to ?t the proper grounding type receptacle. The green (or green and yellow) conductor in the cord is the grounding wire. Never connect the green (or green and yellow) wire to a live terminal. 3. Power switch Ensure that the power switch is in the OFF position. If the plug is connected to a receptacle while the power switch is in the ON position, the power tool will start operating immediately, which could cause a serious accident. 4. Extension cord When the work area is removed from the power source, use an extension cord of su?cient thickness and rated capacity. The extension cord should be kept as short as practicable. 5. Feeding oil (refer to the paragraph on oil feeding) Prior to using the power tool, remove the oil gauge and do not fail the oil tank with the provided oil. (Although the oil tank is built in, it contains only a small volume of oil when shipped from the Hitachi Works.) 6. Mounting a tool NOTE When handling bull point, cold chisel and other accessories, Hitachi standard tools are recommended for better operation. (1) Turn the stop lever in the arrow direction, insert the tool shank into the hexagon hole on the front cover. (2) Replace the stop lever to grip the tool ?rmly. NOTE When removing the tool, follow the above procedures in reverse. 7. Set the side handle When the M8 bolt is loosened with hexagon bar wrench, the side handle becomes freely movable. Set the side handle to a position conforming to the job, and then securely clamp the bolt. HOW TO USE THE DEMOLITION HAMMER (Fig. 3) 1. Pull the trigger switch after applying the tip of the bit to the crushing position. 2. Operate the tool by utilizing its empty weight. The performance will not be better even if the tool is pressed or thrust forcibly against the work surface. Hold the tool with a force just su?cient to counteract the reaction. OIL FEEDING CAUTION Prior to oil feeding, always disconnect the plug from the receptacle. Since an oil chamber is built in this Demolition Hammer, it can be used for approximately