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SPX TWLC Operation Manual
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SPX TWLC Operation Manual

SPX TWLC Operation Manual

Low clearance hydraulic torque wrench
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Edition 3 - 04-01-2010
TWLC LOW CLEARANCE HYDRAULIC
LDF 10063
TWLC Low Clearance Hydraulic Torque Wrench Operation Manual
ORIGINAL INSTRUCTIONS
TORQUE WRENCH
OPERATION MANUAL
BOLTING SYSTEMS
BOLTING SYSTEMS
BOLTING SYSTEMS
BOLTING SYSTEMS
3030 East Pasadena Freeway
Pasadena, Texas 77503
Tel: 713.472.2500
www.spxboltingsystems.com
SPX Bolting Systems
Fax: 713.472.2501
Page 1 of 17

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Summary of Contents for SPX TWLC

  • Page 1 Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual ORIGINAL INSTRUCTIONS TWLC LOW CLEARANCE HYDRAULIC TORQUE WRENCH OPERATION MANUAL BOLTING SYSTEMS BOLTING SYSTEMS BOLTING SYSTEMS BOLTING SYSTEMS 3030 East Pasadena Freeway Pasadena, Texas 77503 Tel: 713.472.2500 Fax: 713.472.2501 www.spxboltingsystems.com...

  • Page 2: Table Of Contents

    Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual Index Introduction Technical Specifications Power Requirements Safety Preparing the torque wrench for use Operating the Torque wrench General torquing Procedure Maintenance and Servicing Fault Finding Chart LDF 10063...

  • Page 3: Introduction

    TWLC Low Clearance Hydraulic Torque Wrench Operation Manual 1. Introduction The TWLC Low Clearance torque wrench is a ratchet type torque tool for hydraulically tightening nuts and bolts. It comprises quick-change, interchangeable drive heads designed to fit directly around the nut, each head specific to the nut size.

  • Page 4: Technical Specifications

    Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual 2. Technical Specifications The following technical data is applicable to all TWLC torque wrenches: MAXIMUM PRESSURE Advance - 690 Bar (10,000psi) Retract - 69 Bar (1,000psi) OPERATING TEMP. LIMITS -20°C to +40°C...
  • Page 5 Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual LDF 10063 SPX Bolting Systems Page 5 of 17...

  • Page 6: Power Requirements

    TWLC Low Clearance Hydraulic Torque Wrench Operation Manual 3. Power Requirements The TWLC torque wrench requires a hydraulic pump unit, twin-line connecting hose and couplings in order to operate. All components must be capable of operating at the system maximum working pressure of 690 Bar (10,000psi).

  • Page 7: Safety

    Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual 4. Safety Always adopt safe working practices when working with pressurized equipment. Protective clothing including eye and head protection must always be worn as well as gloves and safety footwear. Exhibit common sense and most importantly of all, READ AND UNDERSTAND THE OPERATING MANUAL AND PROCEDURES.

  • Page 8: Preparing The Torque Wrench For Use

    Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual 5. Preparing the Torque Wrench for Use Assembling / Removing the Drive Head Before the LWLC torque wrench can be used the correct drive head for the nut must be fitted to the LWLC body.
  • Page 9 Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual Fig 2. BODY AND DRIVE HEAD REMOVAL AND ATTACHMENT Positioning the Torque Tool onto the Nut The LWLC torque wrench locates directly around the nut, with it’s built-in reaction pad designed to react against an adjacent nut.
  • Page 10 Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual Use of Backing Spanners Backing spanners are often used to prevent the non tightening nut on the opposite side of the joint assembly from turning during the torquing operation. Ensure that the backing spanner is the correct size and securely fastened in position (using straps, ropes, etc).

  • Page 11: Operating The Torque Wrench

    Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual 6. Operating the Torque Wrench Torque Wrench Selection To choose the correct capacity Torque Wrench for the application, the estimated break-out torque should be considered, not the tightening torque. Loosening bolts usually requires a higher torque, and if a wrench has been selected on tightening criteria only, it will seldom perform in a break-out situation.
  • Page 12 Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual Setting up prior to operation Setting up the equipment only takes a few minutes and some simple checks during set up will aid in the success of the torquing operation.
  • Page 13 Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual Several forward strokes are made until the nut ceases to rotate during the stroke, (known as stalling), but bear in mind that nut rotation will always cease at the end of the wrench stroke and must not be confused with the wrench stalling.

  • Page 14: General Torquing Procedure

    Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual 7. General Torquing Procedure The following procedure is for use with LWLC torque wrenches and outlines the basic steps in order to carry out the torque tightening of a flanged joint. It is important that personal protective clothing (gloves, footwear, safety helmet, eye protection) is worn at all times not only by the Operator, but also by any personnel within the work area.

  • Page 15: Maintenance And Servicing

    Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual 8. Maintenance and Servicing Post-Use Maintenance In order to keep the LWLC torque wrench in good working condition, it is recommended that simple post- use maintenance be carried following each period of use.
  • Page 16 End of Life and Disposal In accordance with our End of Life Policy, should the product be no longer required for use, it should be returned to SPX Bolting Systems where it shall be disposed of in a safe and environmentally friendly manner.
  • Page 17 Edition 3 - 04-01-2010 TWLC Low Clearance Hydraulic Torque Wrench Operation Manual 9. Fault finding Fault Possible Cause Remedy Cylinder will not 1. Coupling not fully mated 1. Check coupling advance. 2. Cylinder seal leakage 2. Replace seal 3. Pump unit 3.