user manual
Contents
1. If extension cable is used apply those with earth and 3 P cable Use one of leads for earth and connect to earth on TN wrench side Grounding Earth Wire Green Yellow Grounding Earth Power Wire Black amp White Power Source Use commercial power supply When using an extension cord make sure that voltage remains within 10 of the rated voltage at all times Follow the instructions below when using generators O Use 50 60Hz sinusoidal power supply without high harmonic wave Power supply including high harmonic wave may cause malfunction or breakage of the wrench Use high capacity generators Almost 2kW 2kVA is required per one wrench The operating voltage must remain within 10 of the rated voltage at all times Do not use inverter generators Inverter generators may cause malfunction or breakage of the wrench Inverter Generator The engine rpm will speed up and slow down automatically due to the wattage being pulled from the generator Do not use welder generators Welder generators may cause malfunction or breakage of the control base installed in TN wrenches Some welder generators produce electrical noise which may make TN wrenches out of control Do not use welders along with TN wrenches TN wrenches may be out of control due to extraordinary electrical noise even if welders are connected to other generators that TN wrenches are not connected to Keep work area2. Place the bolt assembly in the Bolt tension Indicator Snug tighten the bolt assembly Use the snug tight condition that is recognized by the American Institute of Steel Construction A LS C and the Research Council for Structural Connections R C S C as stated in the publication Specification for Structural Joints Using ASTM A325 and A490 Bolts Note 1 Match mark the end of the bolt with the face of the nut Slide the socket assembly over the nut See fig 3 Squeeze the trigger switch to start the tightening process The reaction arm will turn counter clockwise until it comes up against the reaction stud on the face plate of the bolt tension indicator The inner socket will then rotate the nut clockwise When the socket reaches the preset angle of rotation the tool will shut down automatically Record the tension of the installed bolt assembly 10 Measure and record the installed torque of the assembly Figure 1 Bolt Length Required Rotation 1 4 Body Diameters 1 3 Turn 120 Degrees 4 8 Body Diameters 1 2 Turn 180 Degrees 8 12 Body Diameters 2 3 Turn 240 Degrees Figure 2 Tightening Procedure 1 Determine the rotation required for the length of bolt being tested See fig 1 2 Set the tool for the desired angle of rotation See fig 2 3 Snug tighten the bolt assembly Use the snug tight condition that is recognized by the American Institute
3. in serious injury Contact your distributor for repair service O Repair work should only be done by a qualified serviceman Repair work done by an inexperienced person may cause accidents injury or malfunction Use appropriate power source as indicated on the rating plate O Failure to follow this instruction may result in fire or burn accidents Q Check the following items before operation O Check for any deformation crack or damage the wrench body sockets electric cord plug earth cable and etc Do not use the wrench if any problem are found on items listed above Make sure that socket assembly is correctly installed on the wrench Make sure that set screws are securely fastened Loose installation may result in accidents and personal injury Immediately check the wrench when it is dropped down or banged O Check for deformation crack damage and other abnormality Stop using the wrench if any abnormality is found Continued use of fault wrenches may result in accident and personal injury Q Check if leakage breaker is available together with earth connection Recommended leakage breaker Rating capacity at 15mA and acting time below O 1sec Q Electric cord must be regularly inspected Failure to follow this instruction may result in electric shock or electric leakage Q Never connect grounding clip to gas pipe Failure to follow this instruction may result in fire or burn accidents
4. of Steel Construction A LS C and the Research Council for Structural Connections R C S C as stated in the publication Specification for Structural Joints Using ASTM A325 and A490 Bolts Note 1 4 Slide the socket assembly over the nut See fig 3 5 Squeeze the trigger switch to start the tightening process The reaction arm will turn counter clockwise until it comes up against the adjacent nut or other structural material The inner socket will then rotate the nut clockwise 6 When the socket reaches the preset angle of rotation the tool will shut down automatically Figure 3 Internal Gear Note 1 The snug tightened condition is the tightness attained with a few impacts of an impact wrench for the full effort of an ironworker using an ordinary spud wrench to bring the connected plies into firm contact Z DANGER Do not touch bar socket when operating Failure to follow this instruction may result in personal injury like finger amputation Z WARNING Bar socket must be placed properly on a solid member Failure to follow this instruction may result in the lack of torque or breakage of bolt and nut or personal injury Z CAUTION Do not release trigger switch before the wrench is automatically shut off The preset angle of rotation can only be obtained when automatic shut off is correctly functioned Over tightening or reuse of bolts previously tensioned are strictly prohibited
5. 1 TN 39EZ 1 Bar Socket Line Up for TN 20EZ 1 amp 22 7 1 Bar Bolt size Bolt Socket L Socket Code No A325 Conventional B S8T 490 mm inch mm inch mm inch mm inch MRU24T M16 24 54 2 1 8 82 5 3 1 4 41 5 1 5 8 MRU27T M16 5 8 M18 27 1 1 16 59 2 5 16 82 5 3 1 4 48 5 1 29 32 MRUSOT M20 30 59 2 5 16 82 5 3 1 4 48 5 1 29 32 MRU32T M20 3 47 M22 32 1 1 4 59 2 5 16 82 5 3 1 4 48 5 1 29 32 MRUS36T M22 M24 36 65 2 9 16 82 5 3 1 4 51 0 2 MRUB46Z 7 8 1 7 16 65 2 9 16 82 5 3 1 4 51 0 2 MRU41T M24 1 M27 41 1 5 8 70 2 3 4 90 0 3 1 2 58 5 2 5 16 for TN 24EZA 1 HRU32T M20 3 4 M22 32 1 1 4 65 2 9 16 82 5 3 1 4 49 0 1 15 16 HRU36T M22 M24 36 70 2 3 4 82 5 3 1 4 55 5 2 3 16 HRUB46Z 7 8 1 7 16 70 2 3 4 82 5 3 1 4 55 5 2 3 16 HRU41T M24 1 M27 41 1 5 8 75 2 15 16 90 0 3 1 2 64 0 2 17 32 HRU46T M27 1 1 8 M30 46 1 13 16 80 3 5 32 100 0 3 15 16 66 5 2 5 8 for TN 30EZ 1 amp TN 33EZ 1 VRU41T M24 1 M27 41 1 5 8 75 2 15 16 125 0 4 59 64 49 0 1 15 16 VRU46T M27 1 1 8 M30 46 1 13 16 80 3 5 32 125 0 4 59 64 49 0 1 15 16 VRUS5OT M30 M33 50 85 3 11 32 125 0 4 59 64 49 0 1 15 16
6. Failure to follow this instruction may result in improper tensioning or breakage of the wrench Angle setting can only be done when motor is OFF Use the wrench within its rated maximum torque 8 INSPECTION amp MAINTENANCE Disconnect plug from power source before inspection and maintenance O Accidental starting invites serious injury D Clean dust and debris from bar socket periodically Use only a damp cloth to clean your TN Wrench and sockets since certain cleaning agents and solvents are harmful to those parts Some of these include benzene thinner gasoline and etc 3 Never put solvents into the exhaust vent 4 Store TN wrench in the metal case after operation and keep it dry 5 Carbon brush must be regularly inspected replaced with the new genuine carbon brush when brush length become less than 1 4 Carbon brushes are placed in two position Indicate the wrench model when carbon brushes are needed because carbon brush differs from model to model Replace carbon brush as shown in the following figure Let two A portion coinside Motor Carbon brush 7 Overhaul must be carried out every 6 months or 30 000 tightening whichever comes first Contact your distributor for overhaul in case that TN wrenches become discontinue replacement parts and sockets are available for purchase for 7 years after discontinuance date 9 FEATURES Q The wrench stops automaticall
7. TURN OF THE NUT TIGHTENING WRENCH f INSTRUCTION MANUAL PRESERVED No 1407 nonet TN 20EZ 1 TN 22bEZ 1 24 7 1 TN 30EZ 1 TN 33EZ 1 TN 39EZ 1 Read and fully understand all the instructions before use Keep this manual in designated place for easy and quick reference The models mentioned on this manual are designed for use outside Japan Warranty shall be void if above mentioned models are use in Japan TONE CO LTD PREFACE Thank you for purchasing TURN OF THE NUT TIGHTENING WRENCH Upon receipt check and confirm the following Check any transport damages Check for any loose or lost screws and bolts Check the model as per order Check all the accessories are contained If any problems are found contact your distributor Read this instruction manual carefully before use Full understanding of manual is essential to prevent personal injury or malfunction Keep this manual in a bag attached to the back of metal case lid for easy and quick reference if manual or warning label is lost or becomes illegible or if additional manual is required contact your distributor If you have any questions about the products or the contents of this instruction manual contact your distributor This manual is only applicable to outside Japan SAFETY INSTRUCTIONS This manual specifies three 3 basic safety instructions A DANGER A WARNING CAUTION In
8. VRUB64Z 1 1 4 2 85 3 11 32 125 0 4 59 64 49 0 1 15 16 for TN 39EZ 1 XRUBOT M30 1 1 4 M33 50 2 85 3 11 32 90 0 3 1 27 54 0 2 1 8 XRU55T M33 1 3 8 M36 55 2 3 16 90 3 1 2 900 3 1 2 540 2 1 8 XRU60T M36 1 1 2 M39 60 2 3 8 97 3 13 16 90 0 3 1 2 65 0 2 9 16 Contact your distributor for other available sockets and accessories 6 CHANGING BAR SOCKET Do not connect the plug to power source when changing bar sockets CD Remove bar socket from TN wrench by unscrewing set screws Figure Do not remove set screws completely from outer socket holder Figure1 Bar Socket Set Screw 2 Select adequate bar socket for the bolts being tightened i e Use TONE genuine 5 8 bar socket for tightening 5 8 high strength hexagonal bolts nuts Figure 2 3 Mount bar socket on the wrench body and remove the gap Remove Gap Set Screw between the bar socket and the wrench body gt Fasten the set screws only after gap is completely removed There should be no gap between the bar socket and the TN wrench body O The gap invites accidents or breakage of the bar socket or the TN wrench 7 Operating Procedure Pre Installation Verification Oi 9 Determine the rotation required for the length of bolt being tested See fig 1 Set the tool for the desired angle of rotation See fig 2
9. accessories may result in malfunction of the TN wrenches or accidents or personal injury Q Properly install bar sockets as described in this manual O Incomplete installation may result in accidents and personal injury See CHANGING SOCKETS on page 21 Q Avoid accidental Starting O Ensure that the switch is in the off position before plugging into power source Never carrying TN wrenches with your fingers on the switch when the plug is connected to power source Q Disconnect the plug from the power source when Not in use Changing accessories Inspection and maintenance Or other danger is foreseen Failure to follow these instructions may result in accidental starting and personal injury Q Do not disassemble or modify TN wrenches O Disassembly or modification made by unauthorized personnel may result in malfunction or personal injury O Disassembly amp Re assembly work is permitted for the following expendables Bar Sockets Set Screws Carbon Brushes Store TN wrench in the metal case and keep it at the designated place when not in use O Store TN wrench in lockable dry location to keep any unauthorized personnel away Failure to follow this instruction may result in malfunction or accidents Immediately stop using and then unplug TN wrenches when unusual sound vibration or smell is detected Contact your distributor immediately Failure to follow this instruction may result
10. cility Do not use the tool if the switch does not turn it on and off 19 Warning The use of any accessory or attachment other than those recommended in this instruction manual may present a risk of personal injury 20 Have your tool repaired by a qualified person This electronic tool is in accordance with the relevant safety requirements Repairs should only be carried out by qualified person using genuine spare parts otherwise this may result in considerable damage to the user 2 APPLICATION TURN OF THE NUT TIGHTENING WRENCH is an electric tool for tightening High Strength Hexagonal Bolts Nuts according to Turn of Nut Method 3 N PRECAUTIONS FOR USE To prevent accident personal injury and etc read and follow all instructions listed below Beware of electric shock when operating at high place O Failure to follow this instruction may result in fall down accidents Do not touch bar socket when operating Remove the gap between the bar socket and the reaction member in order not to pinch finger hand or foot O Beware that the reaction bar on the bar socket rotates to opposite direction to that of nut rotating direction Failure to follow this instruction may result in personal injury such as finger amputation Bar socket must be placed perpendicular to a solid reaction member O Use buffers like steel plate in between the reaction member and the bar socket if reaction members are not so
11. clean O Cluttered areas and benches invite accidents Keep children away Do not let children touch TN wrenches and electric cord O All visitors should be kept away from work area Secure work area O Keep body stance balanced and firmed O Never wrap the electric cord around something O Keep work area well lit Q Use suitable model for each application Do not use TN wrenches beyond their rated specifications Do not use TN wrenches for purpose not intended Dress properly O Always wear gloves and non skid footwear when operating outdoor O Always wear safety helmet Q Use genuine accessories or attachments manufactured by Maeda Metal Industries Ltd Maintain TN wrenches O Keep TN wrenches handle clean dry and free of oil or grease Q Keep electric motor well ventilated Do not put any foreign materials in the vent Do not block exhaust vent Do not abuse the electric cord Never use the electric cord for carrying pulling or unplugging the power Keep the electric cord away from heat oil sharp edges or moving parts Do not connect multiple plugs to a single outlet by using multiple outlet adaptors Over current may cause fire accidents or malfunction Provide leakage breaker as a shock guard for each wrench When applying extension cord select shorter extension units than specified below depending on the cross section Nominal c
12. hese instructions FOR SAFE OPERATION 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 is risk to cause fire or explosion 3 Guard against electric shock Avoid body contact with earthed or grounded surfaces 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 8 Dress properly Do not wear loose clothing or jewelry they can be caught in moving parts Rubber gloves and non skid footwear are recommended when working outdoors Wear protecting head covering to contain long hair 9 Use safety glasses and ear defenders 10 Do not abuse the cord Never carry the tool by the cord or yank it to disconnect it from the socket Keep the cord away from heat oil and sharp edge 11 Secure work Use clamps or vice to hold the work It is safer than using your hand and it frees both hands to operate
13. lid Failure to follow this instruction may result in insufficient tightening result or breakage of the bolt and nut or personal injury Q Never use TN wrenches under rainy or snowy condition Failure to follow this instruction may result in electric shock or electric leakage Hold the wrench and grip of firmly when in operation TN Wrenches stop automatically with huge reaction force just after tightening bolts completely Failure to follow this instruction may result in personal injury Electric cord must be regularly inspected O Stop using the wrench if there is a problem with the electric cord Contact your distributor for repair Failure to follow this instruction may result in electric shock or electric leakage Q Never use the wrench around the place where gasoline gas thinner benzine etc are stored Do not use TN wrenches around flammable substances to avoid the accidental fire caused by the spark out of the electric motor Beware of fall down accident when working at a high place Wear safety belt Provide safety net or canvas as safe guarding against falling items Confirm that no one is underneath the working site before operation Stop operation when physically or mentally tired Failure to follow these instructions may result in fall down accidents Q Avoid overloading Use TN wrenches and their accessories within the rated specifications Overloaded TN wrenches and their
14. onducting Max Length cable cross section 115V 1 5mm 10m HO7RN F 2 5mm 20m 4 0mm 30m AWG 14 50ft AWG 12 80ft AWG 10 130ft O Using extension cord more than Maximum Length may result in malfunction or breakdown Recommended connector when using extension cord For 115V 15A 125V Observe local laws and rules concerning noise level 4 BEFORE USE Z WARNING Disconnect plug from power source before inspection O Accidental starting invites personal injury 1 Check for any deformation crack or damage on wrench body bar socket electric cable etc Do not use wrench if any problem is found on items listed above 2 Make sure to use commercial power supply Use appropriate power source as indicated on the rating plate 3 Make sure that socket assembly is correctly installed on the wrench 4 Make sure that set screws are securely fastened Loose installation may result in accident and personal injury See CHANGING SOCKETS on page 21 Z CAUTION Implement exercise procedure before operation O Exercise procedure with no load should be carried out at least 5 minutes before operation 9 PART NAME Part Name Accessories MODEL ACCESSORIES TN 20EZ 1 TN 22EZ 1 TN 24EZA 1 1 Size of Bar Socket BBD M50 for control base Screwdriver Metal Case 30 2 1 PSD M2 for socket Instruction Manual TN 33EZ
15. otice 6 IMKA021
16. structions are classified by degree of risk and described as follows Danger is used to indicate threatening dangerous or unsafe practices which could A DANGER E A i immediately result in severe personal injury or death in the worst case Warning is used to indicate hazardous or unsafe practices which could result in severe A WARNING Mes personal injury or death in the worst occasion Caution is used to indicate hazardous or unsafe practices which could result CAUTION n personal injury or product or property damage Even if the risk is classified as caution risk could become more serious result depending on conditions Make sure to follow all instructions when using TABLE OF CONTENTS 1 GENERAL SAFETY INSTRUCTIONS 4 ATION E ERE 4 NPRECAUTIONS FOR USE 7 A BEFORE USE emnes 18 oe 19 6 CHANGING BAR SOCKET 21 7 OPERATING PROCEDURE e 22 8 INSPECTION amp MAINTENANCE 25 EEAT BES 26 10 SPECIFICATIONS 26 11 AFTERSALES SERVICE 26 1 GENERAL SAFETY INSTRUCTIONS When using electric tools basic safety precautions including the following should always be followed to reduce the risk of fire electric shock and personal injury Read all these instructions before operating this product and keep t
17. the tools 12 Do not over reach Keep proper footing and balance at all times 13 Maintain tools with care Keep clean for better and safer performance Follow instructions for lubrication and changing accessories Inspect tool cord periodically and if damaged have it repaired by an authorized service facility Inspect extension cords periodically and replace if damaged Keep handles dry clean and free from oil and grease 14 Disconnect tools When not in use before servicing and when changing accessories 15 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 16 Use outdoor extension leads When tool is used outdoors use only extension cords intended for outdoor use 17 Stay alert Watch what you are doing Use common sense Do not operate tool when you are tired 18 Check damaged parts Before further use of 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 instruction manual Have defective switches replaced by an authorized service fa
18. y when the preset angle is reached 10 SPECIFICATIONS Rated Voltage Max Controllable No load Repeated 2 Single Current Angle Speed Available Bolt Size Torque Accuracy Range min 1 Phase A bf ft TN 20EZ 1 5 8 A325 A490 5 8 A490 3 4 A325 A490 3 4 A490 7 8 A325 490 TN 30EZ 1 1 25 490 TN 22EZ 1 TN 24EZA 1 TN 33EZ 1 1 1 8 A325 A490 1 1 2 A325 1 1 4 1 3 8 325 490 TN 39EZ 1 10 of repeated accuracy is obtained with adequate operating procedure on page 22 amp 23 above Never use TN wrenches out of 90 240 degrees range Commutator motor is used on the wrench G Control base is used on the wrench Weight excludes socket and cord 11 AFTERSALES SERVICE Contact your distributor for available services Provide model serial number date of purchase and details of failure when contacting your distributor Z CAUTION Do not use TN wrenches when malfunction deficiency in wrenches performance personal injury or property loss is foreseen If possible prepare backup wrenches beforehand TONE CO LTD S la 1 57 2 CHOME NANIWA KU OSAKA 556 0017 JAPAN Web Site http www tonetool co jp e mail overseas tonetool co jp OG Specifications and the design are subject to change without n
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