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Stahlwille Standard Manoskop 720 Nf/80 Technical Description
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Stahlwille Standard Manoskop 720 Nf/80 Technical Description

Torque wrench
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STAHLWILLE
Torque Wrenches
Standard Manoskop
720 Nf/80
721 Nf/80
721 Nf/100
Service Manoskop
730/80
Content
Technical description . . . . . . . . . . . 25
Technical specifications . . . . . . . . . 27
Operation . . . . . . . . . . . . . . . . . . . . 30
Maintenance. . . . . . . . . . . . . . . . . . 39
Accessories . . . . . . . . . . . . . . . . . . 44
Disposal . . . . . . . . . . . . . . . . . . . . . 44
Technical
description
All models
®
Manoskop
721 Nf/100 and 730/80 are adjustable
torque wrenches with a cut-out, tactile
and audible cut-out signals.
•
These torque wrenches have a
safety cut-out mechanism.
•
The wrench is set to cut-out at a
certain torque level by setting the
required value on the N m/ft.lb scale
using a force-free knob.
•
The setting knob has an automatic
setting fail-safe mechanism.
720 Nf/80, 721 Nf/80,
®
®
®
. . . . . . . . 43
25

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Summary of Contents for Stahlwille Standard Manoskop 720 Nf/80

  • Page 1: Table Of Contents

    STAHLWILLE Torque Wrenches ® Standard Manoskop 720 Nf/80 721 Nf/80 721 Nf/100 ® Service Manoskop 730/80 Content Technical description ... 25 Technical specifications ..27 ã...
  • Page 2 DIN EN ISO 6789, Type II, Class A. ® Every Manoskop has a unique serial number and is supplied with a works calibration certificate. STAHLWILLE Standard ® Manoskop 720 Nf/80 ..has a permanent, fixed head with an exchangeable 20 (3/4'') square drive.

  • Page 3: Technical Specifications

    (e.g. for setting), press the ring against the wall of the tube which will extract the locking pin. The locking position is marked with an arrow. STAHLWILLE Service ® Manoskop 730/80 ..can be fitted with various shell tools.

  • Page 4: Important Safety Instructions

    ã Important safety instructions Intended Purpose ® Manoskop 720 Nf/80, 721 Nf/80, 721 Nf/100 und 730/80 have been designed for controlled tightening of screw joints. They may only be used for this purpose. To do so, the correct attachments must be used with the torque wrench.
  • Page 5 ® • Manoskop 720 Nf/80, 721 Nf/80, 721 Nf/100 und 730/80 may not be used in the direction opposite to their intended direction or for uncontrolled loosening of nuts & bolts – e.g. rusty joints. This may cause damage to the torque wrench.

  • Page 6: Operation

    Operation ® Manoskop 720 Nf/80, 721 Nf/80, 721 Nf/100 und 730/80 are measuring instruments and must be treated with utmost care. Avoid subjecting the tool to physical knocks, chemicals or excessive temperatures beyond the limits given in these instructions. Please note that extremes of climate (cold, heat, humidity) may affect measuring accuracy.
  • Page 7 Attaching the grip tube ® 1. Align the arrows on the Manoskop and the grip tube with each other. 2. Press the ring up. 3. Slide the grip tube over the ® Manoskop , until the locking pin locates. If necessary, rotate the grip tube slightly back and fore.
  • Page 8 STAHLWILLE inserts guarantee the connection will be a good fit and that the drive profile will fit exactly.
  • Page 9 ã CAU TIO N! Please use only shell tools made by STAHLWILLE. These guarantee the correct lever length, fit accurately in all situations and are designed to have sufficient strength. ã CAU TIO N! Ensure the maximum permissible load of the insert or shell tool used is not exceeded.
  • Page 10 Remember that the tool has to be of the correct type and size for the screw or bolt. Attaching insert tools 720 Nf/80, 721 Nf/80 und 721 Nf/100 1. Check that the square drive is fitted to the right side of the torque wrench. 2.
  • Page 11 Attaching shell tools – only 730/80 1. Press down the spring-loaded locking pin on the shaft by hand. 2. Slide the shell tool over the shaft of the head of the wrench. Now press down the shell tool until it comes to the endstop.
  • Page 12 Proceed as follows: 1. With the 721 Nf/100 it is necessary to remove the grip tube first (see page 32). This does not apply to other models. 2. Turn the knob clockwise until the scale shows a value lower than the desired cut-off value.
  • Page 13 For controlled counter clockwise ® tightening using the Manoskop 730/80, the shell tools have to be rotated through 180°. Exception: If you are using a ratchet adapter, attach it to the ® Manoskop in the "normal" manner. Then push the square drive out through the upper side and reinsert it from the underside (see page 34).
  • Page 14 Using the torque wrench ã DANG E R! Caution! Before you use the tool, check that the cut-off value has been set correctly and that the insert or shell tool is correctly fitted. ® Manoskop 721 Nf/100 may only be used with the grip tube in position.

  • Page 15: Maintenance

    If you have access to such a tester, you ® may inspect the Manoskop yourself. Suitable torque testers are available from STAHLWILLE. It is also possible for ® STAHLWILLE to test the Manoskop you.
  • Page 16 To carry out the test, proceed as follows: 1. Set the torque wrench to the highest scale reading. 2. Operate the torque wrench five times ensuring it cuts out properly each time. ã CAUTI O N! Important note on the accuracy of the readings: Once the wrench has cut out,...
  • Page 17 Adjusting for deviations in cut-off value You may return your torque wrench to STAHLWILLE for adjustment. You will then receive the tool back with a new works calibration certificate. You may adjust the torque wrench yourself. In this case, however, STAHLWILLE's accuracy guarantee is void.
  • Page 18 Each screw has a minor effect on the adjusting range of the other screw. To protect the mechanisms from dirt, these two holes are plugged. To adjust the wrench, you will need the torque tester and an Allen key, size 2 mm.

  • Page 19: Cleaning The Manoskop

    Such defects can only be repaired if the torque wrench is dismantled. Contact STAHLWILLE in such cases. 7. Refit the plugs to protect the cut-out mechanism from dirt and damp. Replacement plugs are available from STAHLWILLE.

  • Page 20: Accessories

    Accessories For all models • Inserts for square drives for all usual screw head types and sizes. For STAHLWILLE Standard ® Manoskop 730/80 • Sockets • ratchet adapters • square shell tools • open-jaw shell tools • ring shell tools...
  • Page 22 P.O. Box 12 01 03 — 42331 Wuppertal Lindenallee 27 — 42349 Wuppertal Germany Tel.: + 49/2 02/47 91-0 Fax: + 49/2 02/47 91-2 00 E-Mail: info@stahlwille.de Internet: www.stahlwille.de © KONTECXT GmbH Technische Dokumentation 45239 Essen www.kx-doku.de Printed in Germany...

This manual is also suitable for:

Standard manoskop 721 nf/80Service manoskop 730/80Standard manoskop 721 nf/100