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Инструкция по эксплуатации Harbor Freight Tools, модель IMPACT WRENCH 6904VH

Производитель: Harbor Freight Tools
Размер: 82.86 kb
Название файла: 6904VH.pdf
Язык инструкции:en
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Фрагмент инструкции


Switch action CAUTION: • Before plugging in the tool, always check to see that the switch trigger actuates properly and returns to the “OFF” position when released. To start the tool, simply pull the switch trigger. Tool speed is increased by increasing pressure on the switch trigger. Release the switch trigger to stop. Reversing switch action This tool has a reversing switch to change the direction of rotation. Press the upper side (FWD side) of the reversing switch for clockwise rotation or the lower side (REV side) of the reversing switch for counterclockwise rotation. CAUTION: • Always check the direction of rotation before operation. • Use the reversing switch only after the tool comes to a complete stop. Changing the direction of rotation before the tool stops may damage the tool. Speed change To change the speed, slide the speed change lever to the “H” side (lower side) for high speed or to the “L” side (upper side) for low speed. Be sure that the speed change lever is set to the correct position before operation. Use the right speed for your job. CAUTION: • Do not use the speed change lever while the tool is running. The tool may be damaged. ASSEMBLY CAUTION: • Always be sure that the tool is switched off and unplugged before carrying out any work on the tool. Selecting correct socket Always use the correct size socket for bolts and nuts. An incorrect size socket will result in inaccurate and inconsistent fastening torque and/or damage to the bolt or nut. 002335 Installing or removing socket To install the socket, push it onto the anvil of the tool until it locks into place. To remove the socket, simply pull it off. 1 2 1. Socket 2. Anvil The proper fastening torque may differ depending upon the OPERATION kind or size of the bolt, the material of the workpiece to be fastened, etc. The relation between fastening torque and fastening time is shown in the figures. Standard bolt N.m (ft.lbs) (29) 0 1 2 3 (S) M16X50 (5/8” X 2”) at high speed M16X50 (5/8” X 2”) at low speed M12X50 (1/2” X 2”) at high speed M12X50 (1/2” X 2”) at low speed M10X50 (3/8” X 2”) at low speed M10X50 (3/8” X 2”) at high speed M16 (5/8”) 100 (72) 140 (101) 120 (87) Fastening torque Proper fastening torque 80 (58) 60 (43) M12 (1/2”) 40 M10 (3/8”) 20 (14) Fastening time High tensile bolt M16 (5/8”) N.m 260 (188) 240 (174) 220 (159) 200 (145) 180 (130) 160 (116) 140 (101) 120 (87) 100 (72) 80 (58) 60 (43) 40 (29) 20 (14) 0 1 2 3 M16X50 (5/8” X 2”) at high speed M16X50 (5/8” X 2”) at low speed M12X50 (1/2” X 2”) at high speed M12X50 (1/2” X 2”) at low speed M10X50 (3/8” X 2”) at low speed M10X50 (3/8” X 2”) at high speed M12 (1/2”) M10 (3/8”) Fastening torque 4 5 6 Proper fastening torque (S) Fastening time Hold the tool firmly and place the socket over the bolt or nut. Turn the tool on and fasten for the proper fastening time. NOTE: • Hold the tool pointed straight at the bolt or nut. • Excessive fastening torque may damage the bolt/nut or socket. Before starting your job, always perform a test operation to determine the proper fastening time for your bolt or nut. The fastening torque is affected by a wide variety of factors including the following. After fastening, always check the torque with a torque wrench. 1. Voltage Voltage drop will cause a reduction in the fastening torque. 2. Socket • Failure to use the correct size socket will cause a reduction in the fastening torque. • A worn socket ( wear on the hex end or square end ) will cause a reduction in the fastening torque. 002371 002371 3. Bolt • Even though the torque coefficient and the class of bolt are the same, the proper fastening torque will differ according to the diameter of bolt. • Even though the diameters of bolts are the same, the proper fastening torque will differ according to the torque coefficient, the class of bolt and the bolt length. 4. The use of the universal joint or the extension bar somewhat reduces the fastening force of the impact wrench. Compensate by fastening for a longer period of time. 5. The manner of holding the tool or the material of driving position to be fastened will affect the torque. Screwdriving operation When driving screws, install a bit adapter (optional accessory) on the tool and insert a driver bit (optional accessory) into the bit adapter. Hold the tool firmly and place the point of the driver bit in the screw head. Apply forward pressure to the tool to the extent that the bit will not slip off the screw. Start the tool slowly and then increase the speed gradually. Release the switch trigger just as the screw bottoms out. NOTE: • Use the proper bit for the head of the screw/bolt that you wish to use. • Hold the tool pointed straight at the screw or the screw and/or bit may be damaged. • When driving wood screws, predrill pilot holes to make driving easier and to prevent splitting of the workpiece. The pilot holes should be slightly smaller than the wood screws in diameter. MAINTENANCE CAUTION: • Always be sure that the tool is swi...


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