Page 2
〇Mounting and removal of a bit 〇Checks and countermeasures 50〜51 ●Thank you very much for purchasing this YOKOTA product. ●Please be sure to thoroughly read this Instruction Manual and fully understand the instructions before use. ●Please be sure to retain this Instruction Manual at hand.
Page 11
■In cases where you lose this Instruction Manual or the warning label affixed to the product or make it dirty, immediately contact us or your YOKOTA representative to obtain the Manual or the warning label, and then properly retain the Manual or replace the warning label.
Page 12
■Be sure to thoroughly read this Instruction WARNING Manual and fully understand the instructions before use. ■Preparation before use of pneumatic tool ●Proper piping facility should be prepared. Schematic Piping Diagram Branch pipe Gradient: Not less than 1/100 Stop valve Main pipe Filter Regulator...
Page 13
●Elimination of drain CAUTION Before starting work in the morning and afternoon, elimi- nate drain from the drain tank. Before use, purge air through the air hose to eliminate drain from the air hose, and then connect the air hose to the pneumatic tool. ●Use this pneumatic tool at proper air pressure.
Page 14
●Do not use this pneumatic tool in places with an WARNING explosion hazard. NEVER use the pneumatic tool in places with explosion and fire hazards. Doing so could induce a hazardous situation. ●Pay careful attention to the work in high places To prevent accidents resulting from the drop of the pneu- matic tool, take drop preventive measures such as use of safety wire to work in high places using the pneumatic tool.
Page 15
WARNING ■Basic precautions for use of this pneumatic tool: ●Pay careful attention to work. Hasty or thoughtless action or using the pneumatic tool when you are tired could result in injury or accidents. Use the pneumatic tool with your eye kept on and careful attention paid to it.
Page 16
●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.
Page 17
●Do not work in an improper body posture. Use the pneumatic tool in a stable working posture by securely holding it to be ready to respond to unexpected movement. ●Take a break as appropriate. Continuous work for an extended period of time could result in illness.
Page 18
■Maintenance, check, and repair WARNING ●Pay the adequate consideration to store the pneu- matic tool. Unless the pneumatic tool is used, store it in the dry place beyond children’s reach, giving it the enough maintenance. ●Lubrication is important. As the result of lubrication, the premature wearing can be prevented and appearance of rust also can be restricted on the air motor part, gear and so on.
Page 19
●For repair, ask us or our authorized (or designated) service 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 defects arising from customer’s arbitrary actions or measures.
Page 28
Warning & caution for using system wrench (tool, controller) safely. This system is the hand-held air tool for the purpose of not only tightening the bolt, nut, screw etc. with low vibration and low noise level, but also managing the tightening torque precisely. ■...
Page 29
●Wire the each terminal (input, output, solenoid valve etc.) to the related appliance, after putting off the main power switch and unplugging the cord. ●Use the controller with rated power supply as described. Furthermore, keep the fluctuation of supplied voltage within ±10%. If the power supply other than the described rated one is used, the abnormal heat may arise, which may cause the fire.
Page 30
●In the usage of the connecting cable, inspect periodi- cally and exchange when broken. Otherwise, the electric shock or short circuit may arise, which may cause the fire. ●Do not modify the circuit board. ●Do not touch the inside of the circuit board blindly, which may cause the failure.
Page 31
●Use a specified socket stopper. Use socket stoppers specified by Yokota or socket makers. Do not use wire, a nail and others as a substitute for a socket stopper, which can cause serious accidents.
Page 32
●Be prepared for reaction force Be prepared for reaction force by holding the tool securely since there is a chance that an operator might be pushed around by the reaction force. ●Be careful with the operation of a tool at no load. When running the tool at no load, be sure that the tip tool was removed without fail and be careful about the surroundings.
Page 33
■Other precautions About the tool ●Do not touch the oil plug except for repairing. CAUTION It can cause early oil leakage. ●Using a tool which has been in storage for more than 6 months may cause oil leakage because of damage to the seal part on the impulse mechanism.
Page 34
About the controller ●When exchanging the battery, pull off the power plug WARNING to prevent the accident of the electric shock. ●Do not disassemble the battery, make short-circuit or deformation, nor throw into the fire. ●Set the battery in the proper direction of (+) & (−) ●Keep the battery away from the infant.
Page 35
About tool cable ●Do not give the impact and tension externally to the CAUTION cable. ●When connecting the cable, be careful not to give the repetitive bending or tension to the cable and the joint section of the connector during the tightening opera- tion.
Page 36
■基本システム構成図 System configuration コントローラとツールとの接続方法は『システムレンチ取扱説明書』を ご参照ください。 Refer to 「System wrench operation manual 」 for connecting the control- ler and tool. ※基本システム Basic system(YETC-220A) ワーク選択/本数管理開始用LS 締忘判定用LS Work select/Group control start LS Bolt count LS ワーク ワークA ワークB ワークH Work Work A Work B Work H 電磁弁出力...
Page 41
Place a reverse lever or throttle knob to the positions of R or L properly. A tool does not rotate with the reverse lever set to the intermediate position. □YED-90 □YED-120・120A / 150・150A リバースレバーをR (締め) スロットルノブの矢印をR L (ゆるめ) にまわして切替...
Page 42
■スロットルノブの操作方法 How to operate a throttle knob 回転方向切替えレバーの回転方向を必ず確認してから始動してください。 Operate a tool after checking the direction of the switching lever. □YED-90 / 200 YEX-120・120A / 150・150A / 501・501A / 701 / 901 / 1400 / 1900 / 3000 2段スロットル機構装置 (PAT.) Two stage throttle mechanism (PAT.) 1段目でゆっくり始動し、2段目でフルス...
Page 43
■トルクの調整方法 How to adjust torque □YED-90 / 200 YEX-120・120A / 150・150A / 501・501A / 701 / 1400 / 3000 レギレータキャップ ハ ン マ ケ ー ス 部 の レ ギ レ ー タ Regulator Cap キャップを外してください。 Remove the regulator cap on the hammer case section.
Page 44
アジャストボルトまたはアジャスト ロッドはいっぱいに閉めた位置から1 アジャストボルト全閉 回転以上ゆるめた位置での使用をお勧 Adjust Bolt : full max 必要トルク めします。全閉位置では1パルス当た NecessaryTorque りのトルク値は大きくなりますが、パ トルク ルス数は少なくなり、トルクの立ち上 Torque アジャストボルト がりは遅くなります。 1回転ゆるめ More than one turn loosened from the Adjust Bolt : one turn loosened from full max fully tightened position of adjust bolt or adjust rod will be recommendable.
Page 45
□YEX-901 / 1900 ハンマケース ハンマケースのスライドカバーを Hammer Case 回しながらモータケース側にスラ イドさせ長溝穴が見えるようにして ください。 Set the long groove hole be seen by rotating the slide cover of the メインシャフト Main Shaft hammer case and sliding it to the スライドカバー 長溝穴 Slide Cover direction of motor case. Long Groove Hole アジャストボルトが長溝穴から見え...
Page 46
アジャストボルトはいっぱいに閉めた 位置から1回転以上ゆるめた位置での アジャストボルト全閉 使用をお勧めします。全閉位置では1 Adjust Bolt : full max 必要トルク パルス当たりのトルク値は大きくなり NecessaryTorque ますが、パルス数は少なくなり、トル トルク クの立ち上がりは遅くなります。 Torque アジャストボルト More than one turn loosened from 1回転ゆるめ the fully tightened position of adjust Adjust Bolt : one turn loosened from full max bolt will be recommendable. The maximum tightened position can 締付時間...
Page 47
■ソケットの取付け方 Mounting of a socket ピン穴 メインシャフトのピン穴とソケッ Pin Hole トのピン穴が合うようにソケット を取付けてください。 Mount a socket by aligning the socket pin hole over the main shaft pin hole. ソケット Socket メインシャフト Main Shaft ピン穴にピンを挿入します。 Insert a pin to the pin hole. 注意:ピンはソケットからはみ出さない 長さの物をご使用ください。 Note: The length of the pin should be proper enough not to be extruded ピン...
Page 48
■ビットの取付け・取外し方 Mounting and removal of a bit ビットチャックを引っ張りなが 引っ張る ら、ビットを奥まで挿入してくだ Pull A type : 9mm さい。 A型ビットをご使用ください。 Insert a bit as far as it will go while ビット pulling the bit chuck. ビットチャック Use A type bit. Bit Chuck ビットチャックをはなすと元の位 置にもどり、ビットを手で引っ張 ても抜け落ちないことを確認して...
Page 52
Low torque (Insufficient tightening torque) Faulty Low r.p.m. Faulty motor part impulse part The repair is authorized. Repair Immediately stop using the tool. If there is no improvement with 〇Ask your YOKOTA dealer above countermeasures and repair. for repair. -50-...
Page 53
(No pulsing) is released. The repair is authorized. Repair Immediately stop using the tool. If there is no improvement with 〇Ask your YOKOTA dealer above countermeasures and repair. for repair. -51-...
Need help?
Do you have a question about the YED-90 and is the answer not in the manual?
Questions and answers