Manuual for SQT series hydraulic torque wrenches


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Manuual for SQT series hydraulic torque wrenches

  1. 1. Web: Shanghai Jiangnan Machinery Factory JLTorTool SQT-Series Sq Drive Hydraulic Torque Wrenches Operations & Repair Manual -1Contact:Victor Huang;Skype:victorhuang586;Tel: 0086 (0)21-51506668-58 Fax: 0086 (0)21-51506669 Mobile:0086 13524557984;;;qq:455208458;
  2. 2. Shanghai Jiangnan Machinery Factory Web: JLTorTool SQT series square drive torque wrench Special emphasis: SQT Hydraulic Torque Wrenches is the power tool for any power tool, indeed, a reliable security prevention are very important, the following is important to note a few suggestions. ● Read all the technical documents. ● Try to make the working environment clean and bright. If the environment in the workplace air explosion could have any potential, you may not use electric pumps, pneumatic pumps should be used. If metal crash sparks, should take preventive measures. ● Reaction arm Hydraulic Torque Wrenches operation requires proper reaction fulcrum, according to the site need to adjust the reaction arm or the appropriate reaction arm position. If still not working, please consult the JLTorTool. ● To avoid the tools (Hydraulic Torque Wrenches) misuse Pumps operate the remote control just for the wrench to use, to avoid separating the operator and the pump is too far. ● Ensure operation of space Hydraulic Torque Wrenches is not in use most of the hand, if you must use the hand or in the case of the fixed wrench, should think of other ways to achieve their goals. -2Contact:Victor Huang;Skype:victorhuang586;Tel: 0086 (0)21-51506668-58 Fax: 0086 (0)21-51506669 Mobile:0086 13524557984;;;qq:455208458;
  3. 3. Shanghai Jiangnan Machinery Factory Web: ● Avoid electric shock With electric pump to ensure a good grounding and proper power supply voltage. ● Hydraulic Torque Wrenches should be saved without good Temporarily unused Hydraulic Torque Wrenches and wrench accessories should be properly stored to avoid damage. ● Using the appropriate Hydraulic Torque Wrenches Not with a small torque wrench or hydraulic accessories to replace the Hydraulic Torque Wrenches work, not unsuitable to work the Hydraulic Torque Wrenches. ● Wear appropriate labor protection products When using the manual / motorized hydraulic equipment, you should use gloves, helmets, safety shoes, ear protection, labor insurance and other protective clothing. ● Safety glasses ● Mobile Devices Do not drag through the hydraulic tubing, rotary joints, hydraulic power cord or external cables, etc. to move the unit. Hydraulic Torque Wrenches comes with handles, can be used to move equipment. ● High-pressure tubing Do not bend, fold tubing, always check the tubing, if damaged, should be replaced. ● Dust cover and side cover All tools have dust cover and side cover, so that internal moving parts and the separation of the external environment, in addition to JLTorTool professional maintenance staff, users do not want to disassemble or use tools without guards. ● Careful to maintain the Hydraulic Torque Wrenches To ensure the best performance tool, should always check the tool itself, the power source, tubing, quick connectors, wires, attachments to prevent some common damage occurs. Should be in the proper Hydraulic Torque Wrenches, hydraulic pump unit to repair the maintenance guide. More detailed maintenance instructions please refer to maintenance section. ● Vigilance To maintain attention at work, can not be used in an unstable state of power equipment. ● Preparation before operation Ensure that all hydraulic couplings are indeed connected. Check the hydraulic tubing is not entangled, to determine the square head drive shaft and maintain the cap is secure, reliable joint then. Ensure that all connectors, elbows, swivels without distortion or damage. -3Contact:Victor Huang;Skype:victorhuang586;Tel: 0086 (0)21-51506668-58 Fax: 0086 (0)21-51506669 Mobile:0086 13524557984;;;qq:455208458;
  4. 4. Shanghai Jiangnan Machinery Factory Web: ● Preparation before use Rotate the drive shaft of Hydraulic Torque Wrenches square head is observed with good function. Looking for a fixed surface, choose a good spot, make sure the reaction arm to support reliable, to ensure that the hydraulic tubing is not suppressed. System pressure, if the Hydraulic Torque Wrenches beating or shaking, stop and then re-adjust the reaction arm and the anchor, to make it more solid and safe. Note: The operation, reaction arm should be kept clean, and the role of anti-surface between the arms cannot have a foreign body. ● Please stick with quality accessories Use high strength sleeve because the sleeve has the exact size of high-quality, and nuts are a good match. Hidden crack has the potential to rupture the sleeve in use, so proper maintenance of the sleeve, the sleeve in operation to keep clean and manipulation. Do not use force, but do not use a hammer sleeve, as well as tools to increase the force, if you are not using a Hydraulic Torque Wrenches turn the nut, use a larger device JLTorTool Hydraulic Torque Wrenches. Note: JLTorTool designed only to drive the hydraulic pump JLTorTool Hydraulic Torque Wrenches; improper use may cause damage to the hydraulic pump or Hydraulic Torque Wrenches. -4Contact:Victor Huang;Skype:victorhuang586;Tel: 0086 (0)21-51506668-58 Fax: 0086 (0)21-51506669 Mobile:0086 13524557984;;;qq:455208458;
  5. 5. Shanghai Jiangnan Machinery Factory Web: DRIVE DIRECTION CHANGE To remove the square, disengage the drive retainer assembly by depressing the center round button and gently pulling on the square end of the square drive. The square drive will slide easily out. To insert the drive in the tool, place the drive in the desired direction, engage drive and bushing splines, then twist drive and bushing until ratchet spline can be engaged. Push drive through ratchet. Depress drive retainer button, engage retainer with drive and release button to lock. Right is tight. Left is loose. SETTING THE REACTION ARM All JLTorTool’s Torque wrenches are equipped with a universal reaction arm. These reaction arms are employed to absorb and counteract forces created as the unit operates. The reaction arm should extend in the same direction of the square drive; however, slight adjustments may be made to suit your particular application. The function of a reaction: Device is to hold the tool in position against the forces generated to tighten or loosen bolts or nuts. Hydraulic Torque Wrenches generate tremendous force. The reaction arm can be positioned in numerous places within a 3600 circle. However, for the arm to be correctly positioned, it must be set within a 900 quadrant of that circle. That quadrant is the area located between the protruding square drive and the bottom of the housing away from the swivel inlets. It will always be toward the lower half of the housing and on one side of the housing when tightening and the other side when loosening. -5Contact:Victor Huang;Skype:victorhuang586;Tel: 0086 (0)21-51506668-58 Fax: 0086 (0)21-51506669 Mobile:0086 13524557984;;;qq:455208458;
  6. 6. Shanghai Jiangnan Machinery Factory Web: SETTING THE SQUARE DRIVE FOR ROTATION The position of the square drive when looking toward the shroud will determine if the tool is set to tighten or loosen the nut. When the square drive extends to the left when looking at the shroud with the inlets away from you, the tool is set to loosen the nut. When the square drive extends to the right, the tool is set to tighten the nut. To change the direction of rotation for JHM series wrenches simply push the square drive into the housing until the drive projects out the opposite side of the tool. SETTING THE TORQUE After determining the desired torque, use the torque conversion charts to determine the pressure that is necessary to achieve that torque. 1. Connect the tool to the power supply and turn the pump on. 2. Depress the advance remote control button causing the pressure to be shown on the gauge. 3. Adjust the pressure by first loosing the nut that locks the pressure adjustment handle and then rotate the handle clockwise to increase the pressure and counter clockwise to decrease the pressure. When decreasing pressure, always lower the pressure below the desired point and then bring the pressure gauge back up to the desired pressure. 4. When the desired pressure is reached, retighten the lock nut and cycle the tool again to confirm that the desired pressure setting has been obtained. OPERATING THE WRENCH 1. Place the square Drive in the socket, insert the socket retainer ring and pin, and place the socket to the nut. Make certain the square drive and socket are the correct size for the nut and that the socket fully engages the nut. 2. Position the reaction arm against an adjacent nut, flange or solid system component. Make certain that there is clearance for the hoses and swivel couplings. Do not allow the tool to react against the hoses, or swivel couplings. When reacting directly off the tool body with reaction arm removed. Do not react off the exposed end plug spigot. -6Contact:Victor Huang;Skype:victorhuang586;Tel: 0086 (0)21-51506668-58 Fax: 0086 (0)21-51506669 Mobile:0086 13524557984;;;qq:455208458;
  7. 7. Shanghai Jiangnan Machinery Factory Web: 3. After having turned the pump on and presetting the pressure for the correct torque, depress the remote control advance button to advance the piston assembly. 4. When the wrench is started, the reaction surface of the wrench or reaction arm will move against the contact point and the nut will begin to turn. Once the piston reaches the end of its stroke depress the remote control return button to retract the piston. 5. Continue this cycling operation of advance and retract until the nut is no longer turning and the pump gauge reaches the preset pressure. The piston rod will retract when the retract button is pressed and under normal conditions, an audible “click” will be heard as the tool resets itself. 6. Continue to cycle the tool until it “stalls” and the preset psi/torque has been attained. 7. Once the nut stops rotating, cycle the tool one last time to achieve total torque. CAUTION During the operation, if the tool locks on to the nut, press advance button on remote and build pressure-continue to press down on remote while pushing down on the reaction pawl-release remote while continuing to push down on reaction pawl, then the tool will the released from the nut. -7Contact:Victor Huang;Skype:victorhuang586;Tel: 0086 (0)21-51506668-58 Fax: 0086 (0)21-51506669 Mobile:0086 13524557984;;;qq:455208458;
  8. 8. Shanghai Jiangnan Machinery Factory TROUBLE Web: PROBABLE CAUSE Couplers are not securely attached to the tool or pump Piston will not advance Coupler is defective or retract Defective remote control unit SOLUTION Check the coupler connections and make certain that they are connected. Replace any defective coupler Replace the button and/or control pendent Dirt in the direction-consol valve Disassemble the pump and clean o the pump unit the direction-control valve Make certain the advance on the pump is connected to the Hose connections reversed advance on the tool and retract on the pump is connected to the retract on the tool Piston will not retract Retract hose not connected Retrace pin and/or spring broken Cylinder will not build up pressure Piston seal and/or end plug seal leaking Connect the retrace hose securely Replace the broken pin and/or spring Replace any defective o-ring Coupler is defective Grease or dirt build up in the Square Drive will not turn Replace Disassemble the Ratchet and teeth of the ratchet and segment clean the grease or dirt out of the pawl teeth Worn or broken teeth on ratchet Replace any worn or damaged and/or Segment Pawl Defective relief valve parts Inspect, adjust or replace the relief valve Make certain the amperage, Electric power source is too Pump will not build up voltage and any extension aord low size comply with the pump manual requirements pressure Defective gauge Replace the Gauge Low oil level Check and fill the pump reservoir Clogged filter Nut Return with retract stroke Inspect, clean and/or replace the pump filter Ball Plungers are not engaging Thread the Ball Plungers to the the Drive Sleeves correct depth in the Housing -8Contact:Victor Huang;Skype:victorhuang586;Tel: 0086 (0)21-51506668-58 Fax: 0086 (0)21-51506669 Mobile:0086 13524557984;;;qq:455208458;
  9. 9. Shanghai Jiangnan Machinery Factory Web: SQT Exploded Diagram -9Contact:Victor Huang;Skype:victorhuang586;Tel: 0086 (0)21-51506668-58 Fax: 0086 (0)21-51506669 Mobile:0086 13524557984;;;qq:455208458;
  10. 10. Shanghai Jiangnan Machinery Factory Pressure(Mpa) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Web: SQT-3 Torque/Pressure Chart Torque(Nm) Pressure(Mpa) 64 36 128 37 191 38 255 39 319 40 383 41 447 42 510 43 574 44 638 45 702 46 766 47 829 48 893 49 957 50 1021 51 1085 52 1149 53 1212 54 1276 55 1340 56 1404 57 1468 58 1531 59 1595 60 1659 61 1723 62 1787 63 1850 64 1914 65 1978 66 2042 67 2106 68 2169 69 2233 70 Torque(Nm) 2297 2361 2425 2488 2552 2616 2680 2744 2808 2871 2935 2999 3063 3127 3190 3254 3318 3382 3446 3509 3573 3637 3701 3765 3828 3892 3956 4020 4084 4147 4211 4275 4339 4403 4466 - 10 Contact:Victor Huang;Skype:victorhuang586;Tel: 0086 (0)21-51506668-58 Fax: 0086 (0)21-51506669 Mobile:0086 13524557984;;;qq:455208458;
  11. 11. Shanghai Jiangnan Machinery Factory Web: - 11 Contact:Victor Huang;Skype:victorhuang586;Tel: 0086 (0)21-51506668-58 Fax: 0086 (0)21-51506669 Mobile:0086 13524557984;;;qq:455208458;