Related Manuals for norbar Handtorque HT-72
Summary of Contents for norbar Handtorque HT-72
- Page 1 OPERATOR’S MANUAL HANDTORQUE MULTIPLIERS Part Number 34269 | Issue 9 | Original Instructions (English/Deutsch)
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Page 2: Table Of Contents
CONTENTS Part Numbers Covered by This Manual Standard Series Small Diameter Series HT4 Series Compact Series Optional Extras Safety Introduction Operating Instructions Torque Reaction Setting Torque for Bolt Tightening (Non-Calibrated) Setting Torque for Bolt Tightening (Calibrated) Setting Torque for Bolt Loosening Operating the Multiplier Anti Wind-Up Ratchet Purpose of the Anti Wind-Up Ratchet... -
Page 3: Part Numbers Covered By This Manual
PART NUMBERS COVERED BY THIS MANUAL This manual covers the setup and use of Norbar Handtorque multipliers. Standard Series Part Number Maximum Model Torque Without AWUR With AWUR HT 1 & HT 2 1700 N·m 16010, 16012, 16034 16089 HT 5 & HT 6 3400 N·m... -
Page 4: Safety
SAFETY IMPORTANT: DO NOT OPERATE THE TOOL BEFORE READING THESE INSTRUCTIONS. FAILURE TO DO SO MAY RESULT IN PERSONAL INJURY OR DAMAGE TO THE TOOL. This tool is intended for use with threaded fasteners. Any other use is not recommended. These tools require a reaction bar. -
Page 5: Operating Instructions
OPERATING INSTRUCTIONS To operate the Handtorque multiplier you will need the following:- Power Drive or Impact Quality Sockets. Reaction Arm. Norbar or other quality torque wrench. INPUT SQUARE ANTI WIND-UP DRIVE RATCHET INPUT SQUARE DRIVE ANTI WIND-UP RATCHET... -
Page 6: Torque Reaction
Square Drive and must be allowed to rest squarely against a solid object or surface adjacent to the bolt to be tightened (see Figure 2). Where the standard reaction plate is not suitable, it may be possible to adapt it. Refer to your Norbar distributor for advice. - Page 7 Standard square drive extensions MUST NOT be used as these will cause serious damage to the wrench output drive. Norbar manufacture a range of nose extensions for applications where access is restricted and these are designed to support the final drive correctly.
- Page 8 Standard length Socket Extra length Socket Torque Reaction should be taken in the shaded areas only FIGURE 5 – HT 4 Series Safe Reaction Window Standard Length Socket Extra Length Socket Torque Reaction should be taken in the shaded areas only FIGURE 6 –...
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Page 9: Setting Torque For Bolt Tightening (Non-Calibrated)
Establish the correct torque figure for the bolt from manufacturer’s instructions or by calculation. A torque tension calculator is available on the Norbar website (www.norbar.com), which can be used as a guide to help calculate the tension generated in a bolt for a given thread size, torque and friction value. -
Page 10: Setting Torque For Bolt Loosening
Select a suitable torque wrench for the input torque. The wrench should be of high quality and regularly calibrated. The HT 52, 72 and 92 Compact Series models can also come as part of a kit which includes a Norbar TTi Torque Wrench and Carry Case. The table below details the range of Handtorque... -
Page 11: Anti Wind-Up Ratchet
ANTI WIND-UP RATCHET Purpose of the Anti Wind-Up Ratchet (AWUR) Most multipliers with ratios of 25:1 and over are fitted with an anti wind-up ratchet. The multiplier can be thought of as a spring which must be fully wound before any tightening/untightening work can be applied to the bolt. - Page 12 The tool may now be removed from the fastener. Familiarise yourself with this tool by initially applying low torques and removing wind-up. We recommend that the Anti Wind up assembly input gear and ratchet teeth are inspected annually by your Norbar approved distributor for wear or damage.
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Page 13: Maintenance
FIGURE 12 Any other maintenance or repairs should be carried out by Norbar or a Norbar approved agent and should form part of a service. Service intervals will depend on the type of usage of the tools and the environment in which they are being used. -
Page 14: Specifications
SPECIFICATIONS Standard Series Maximum Torque Input Output Part Output Square Square Model Ratio Number N·m lbf·ft HT 1/5 16010 1700 1250 ½” ¾” HT 2/5 16012 1700 1250 ¾” 1” HT 2/25 16034 1700 1250 25:1 ¾” 1” HT 2/25 AWUR 16089 1700 1250... -
Page 15: Ht4 Series
HT4 Series Maximum Torque Output Input Square Output Square Part Model Ratio Number N·m lbf·ft HT4/15.5 17022 3000 2200 15.5:1 ½” 1” HT4/26 17021 4500 3300 26:1 ½” 1” Compact Series Maximum Torque Output Input Square Output Square Part Model Ratio Number N·m... -
Page 16: Trouble Shooting
TROUBLE SHOOTING The following is only a guide, for more complex faults please contact your local Norbar agent or Norbar directly. Problem Likely Solutions Drive square sheared See maintenance section. Serious damage to internal gears, return to Norbar or agent for Input drive rotates but output will not repair (Check AWUR change lever is not in neutral position). - Page 17 Tel + 86 21 6145 0368 Tel + 61 (0)8 8292 9777 Email sales@norbar.com.cn Email enquiry@norbar.com.au NORBAR TORQUE TOOLS INDIA PVT. LTD NORBAR TORQUE TOOLS INC Plot No A-168, Khairne Industrial Area, 36400 Biltmore Place, Willoughby, Thane Belapur Road, Mahape, Ohio, 44094 Navi Mumbai –...
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