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Securely mount air hose attachments.

Disconnection of the air hose could cause it to fly about 

due to air jet, thus inducing an imminently hazardous 

situation. To avoid that, securely mount the air hose 

attachment to the air hose and the pneumatic tool, 

respectively.

Be careful with dust contamination when connecting 

air hose.

Please be sure to do air blow until dust and drain are gone 

when connecting air hose with a tool.  Also, please be sure 

to remove dust on the connecting part of air hose.

Securely fix workpiece.

If workpiece is not securely fixed, it could fly to cause 

personal injury. To avoid that, securely fix workpiece to 

work.

Do not bring your hand or a cloth close to moving part.

Since the pneumatic tool is in imminent danger while in 

use, NEVER bring your hand or a cloth to the moving part 

of the pneumatic tool.

Do not bring the pneumatic tool into contact with 

electricity.

Since the pneumatic tool is not designed to isolate from 

electrical contact, use it with careful attention paid not to 

bring it into contact with electricity.

Avoid sudden startup.

To connect an air hose to the pneumatic tool, check to be 

sure that the START switch is set to OFF. In addition, to 

carry the pneumatic tool, do not put your hand on the 

START switch.

Pay utmost care to the direction of exhaust air.

When the pneumatic tool is operated, oil mist is coming up. 

Furthermore, as the foreign particles etc., may be exhausted 

from inside air compressor or air piping, use the  pneumatic 

tool with utmost care paid to the direction of exhaust air so 

that your eye or ear will not be directly exposed to it.

Summary of Contents for YLT50A

Page 1: ...3 34 35 37 36 38 39 Sq YLT60A 60AL 60B 60BL YLT50A 50B YLT70A 70AL 70B 70BL YLT60 60E 60L 60EL YLT50 50E YLT70 70E 70L 70EL YLT80 80E 80L 80EL YLT110 110E 110L 110EL YLT120 120E 120L 120EL YLT140 140E...

Page 2: ...tening torque of touch joint 32 26 30 33 34 35 37 36 40 41 INSTRUCTION MANUAL FOR SHUT OFF IMPULSE WRENCH Pistol type Square type Bit type Thank you very much for purchasing this YOKOTA product Please...

Page 3: ...1...

Page 4: ...2 1 100...

Page 5: ...3 5...

Page 6: ...4 85dB 85dB...

Page 7: ...5...

Page 8: ...6...

Page 9: ...7...

Page 10: ...8 1 2 3 TKa 32 ISO VG32...

Page 11: ...s or your YOKOTA representative to obtain the Manual or the warning label and then properly retain the Manual or replace the warning label In cases where you transfer or rent this product be sure to a...

Page 12: ...ly vary particularly in case of high velocity airflow This phenomenon is commonly referred to as mid flow loss or piping loss which results from loss or leakage to outside due to friction between airf...

Page 13: ...alfunctions of the pneumatic tool or accidents supply clean and dry com pressed air to it For that purpose it is recommended to install an air drier air filter etc Use proper air hose Use an oil resis...

Page 14: ...hazardous situation Pay careful attention to noise levels There are restrictions on noise levels prescribed by the laws and regulations as well as prefectural ordinances The pneumatic tool must be us...

Page 15: ...he pneumatic tool with great care Do not throw or drop the pneumatic tool to give it shocks Rough handling of the pneumatic tool could result in accidents or malfunctions of it Handle the air hose wit...

Page 16: ...nce the pneumatic tool is in imminent danger while in use NEVER bring your hand or a cloth to the moving part of the pneumatic tool Do not bring the pneumatic tool into contact with electricity Since...

Page 17: ...pneumatic tool with parts or screws dismounted from it Doing so could result in accidents Immediately stop using the pneumatic tool if there is any abnormality on the tool If there is any abnormality...

Page 18: ...tor part through the air inlet two or three times a day For that purpose it is recommended to install a lubricator with automatic drop function Above remommended oil can be handled by us Be sure to pe...

Page 19: ...ice factory For repair of the pneumatic tool ask us or our authorized or designated service factory through your YOKOTA dealer or distributor Note that we are not responsible for any accidents or defe...

Page 20: ...18 0 4 0 5MPa 0 5 0 6MPa YLT50 0 4 0 6MPa...

Page 21: ...19...

Page 22: ...20 1 2...

Page 23: ...21 6 6 10 L R 0 4 0 5MPa 0 5 0 6MPa L L...

Page 24: ...e of high air pressure The tool may shut off prematurely before finishing the normal tightening Be sure to install an air filter There is a possibility that the foreign material which got into supplie...

Page 25: ...ing an attachment Be sure to stop compressed air coming in and remove air hose then exchange or install an attachment Besides unless protective devices couplers and etc which can shut down compressed...

Page 26: ...during operation use the bits conforming to the sizes of screw heads 1 size bit should not be used on the 2 screw with head Also do not place a bit over screw head diago nally and make sure to place...

Page 27: ...rder not to stick the seal part to other component part We can offer the inspection service Please ask us for the service Be sure to do warm up operation with a tool for about 10 seconds by putting a...

Page 28: ...ension bar is used or not if a reverse lever position is set to L loosening direction A tool does not stop automatically with the reverse lever set to L direction if an outlet of exhaust air on the mo...

Page 29: ...of Bit Square Drive 9 5mm Air Inlet Thread Pipe Thread Rc1 4 Air Hose Size 6 5m 6 5m Noise Level 70dB A 1m 0 95kg Weight Iess Socket about Overall Length about Overall Height about 164mm 173 5mm Spind...

Page 30: ...Hex Size of Bit 6 35mm Air Inlet Thread Pipe Thread Rc1 4 Air Hose Size 6 5m 6 5m Noise Level 72dB A 1m 0 95kg Weight Iess Socket about Overall Length about Overall Height about 164mm 173 5mm Spindle...

Page 31: ...13 0 28 0 N m Hex Size of Bit 6 35mm Air Inlet Thread Pipe Thread Rc1 4 Air Hose Size 6 5m 6 5m Noise Level 74dB A 1m 1 01kg Weight Iess Socket about Overall Length about Overall Height about 177mm 17...

Page 32: ...30 7 0 15 5 9 5mm Rc1 4 6 5m 72dB A 1m 0 95kg 164mm 173 5mm 22 5mm 5300 M6 M8 6300 360 15 0 32 0 9 5mm Rc1 4 6 5m 74dB A 1m 1 01kg 177mm 173 5mm 23 0mm 6800 M8 M10 6600 440 30 0 55 0 9 5mm Rc1 4 8 5m...

Page 33: ...95kg 164mm 173 5mm 22 5mm 4500 M6 M8 5800 310 13 0 28 0 9 5mm Rc1 4 6 5m 73dB A 1m 1 01kg 177mm 173 5mm 23 0mm 6300 M8 M10 6200 370 25 0 48 0 9 5mm Rc1 4 8 5m 76dB A 1m 1 16kg 187mm 176 5mm 24 5mm 66...

Page 34: ...ing position Switching rotation direction should be made when the motor is in stop condition Place a reverse lever to the positions of R or L properly A tool does not rotate with the reverse lever set...

Page 35: ...at the first step and corresponding rotation Torque generation in the event of load can be gradually increased by pulling a throttle knob slowly from the first step to the second ON 2 Two stage linea...

Page 36: ...justment screw with a hexagon wrench to set torque Turning right increases torque and turning left decreases torque Do not turn the torque adjustment screw all the way to the maximum position or the m...

Page 37: ...a hexagon plug with a hexagon wrench When you set torque please tighten a hexagon plug even at test tightening Hammer case Hexagon wrench Hexagon plug 1 Torque adjustment screw one turn loosened from...

Page 38: ...ngth of the pin should be proper enough not to be extruded out of the socket O Fix an o ring over the socket to prevent the pin from coming off Mounting of a socket Pin Pin hole Socket Main shaft O O...

Page 39: ...aft B type bit for the B type main shaft When the bit chuck is released it will return to the original position Make sure that it does not fall off To remove the bit pull the bit while pulling the bit...

Page 40: ...38 R L Yes No...

Page 41: ...39 Yes No...

Page 42: ...a rotor and upper plate Vane warn out Ball bearing failure Pulse number less than the default value Pulse number more than the default value Oil leak Impulse unit deterioration Throttle lever opening...

Page 43: ...es Repair No Main shaft rotates if it is turned by fingers Main shaft does not rotate even if it is turned by fingers The tool does not stop even after a throttle lever is released When under load The...

Page 44: ...aka 550 0023 Japan TEL 81 6 6581 1721 FAX 81 6 6581 1725 Hiroshima Office 4 2 8 Nishikaniya Minami ku Hiroshima City Hiroshima 732 0804 Japan TEL 81 82 263 1473 FAX 81 82 262 3894 Kokura Office 2 12 3...

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