S0309000
Page 9
Standard Torques
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TORQUE WRENCH EXTENSION TOOLS
Very large diameter, high grade fasteners (nuts, bolts, cap screws, etc.) require a great deal of turning
force to achieve recommended tightening torque values.
Common problems that could occur as a result are:
•
Recommended torque exceeds the measuring capacity of the torque wrench.
•
Specialized sockets do not fit the adapter on the front end (nose) of the torque wrench.
•
Generating adequate force on the back end (handle) of the wrench is difficult or impossible.
•
Restricted access or an obstruction may make use of the torque wrench impossible.
•
A unique application requires fabrication of an adapter or other special extension.
Most standard torque wrenches can be adapted to suit any one of the proceeding needs or situations, if
the right extension tool is used or fabricated.
TORQUE MULTIPLICATION
A wrench extension tool can be used to
increase the tightening force on a high capacity
nut or bolt.
For example, doubling the distance between the
bolt and the back (handle) end of the torque
wrench doubles the tightening force on the bolt.
It also halves the indicated reading on the scale
or dial of the torque wrench. To accurately
adjust or convert indicated scale or dial
readings, use the following formula:
I = A x T / A + B where:
I = Indicated force shown on the torque wrench
scale or dial.
T = Tightening force applied to the nut or bolt (actual Torque).
A = Length of the torque wrench (between the center of the nut or bolt and the center of the handle).
B = Length of the extension.
As an example, if a 12" extension is added to a 12" torque wrench, and the indicated torque on the dial
reads "150 ft lb," the real force applied to the bolt is 300 ft lb:
NOTE:
The formula assumes that there is no added deflection or "give" in the joint between the
extension and torque wrench. Readings may also be inaccurate:
•
If the extension itself absorbs some of the tightening force and starts to bend or bow out.
•
If an extension has to be fabricated that is not perfectly straight (for example, an extension
made to go around an obstruction, to allow access to a difficult to tighten fastener), the
materials and methods used must be solid enough to transmit full tightening torque.
I =
A x T
=
12 x 300
=
3600
= 150
A + B
12 + 12
24
Figure 1
Summary of Contents for Mega 500-V
Page 4: ...1SAFETY ...
Page 41: ...1SPECIFICATIONS ...
Page 47: ...S0203070K Page 6 Specifications for Mega 500 V ENGINE PERFORMANCE CURVES AHS3720L Figure 2 ...
Page 55: ...S0203070K Page 14 Specifications for Mega 500 V ...
Page 56: ...1GENERAL MAINTENANCE ...
Page 70: ...S0302000 Page 14 General Maintenance Procedures Return to Master Table of Contents ...
Page 83: ...1UPPER STRUCTURE ...
Page 85: ...S0403040K Page 2 Counterweight TABLE OF CONTENTS Specifications 3 Counterweight 3 ...
Page 87: ...S0403040K Page 4 Counterweight ...
Page 98: ...1LOWER STRUCTURE AND CHASSIS ...
Page 104: ...S0502020K Page 6 Center Joint Articulation Joint ...
Page 105: ...1ENGINE AND DRIVE TRAIN ...
Page 118: ...S0602170K Page 13 Axle ZF AP 420R Figure 9 ...
Page 119: ...S0602170K Page 14 Axle ZF AP 420R ...
Page 121: ...S0602170K Page 16 Axle ZF AP 420R FINAL DRIVE AP 407 409 Figure 10 ...
Page 123: ...S0602170K Page 18 Axle ZF AP 420R AP 411 415 Figure 11 ...
Page 125: ...S0602170K Page 20 Axle ZF AP 420R AP 417 420 Figure 12 ...
Page 129: ...S0602170K Page 24 Axle ZF AP 420R Differential Carrier RK Figure 14 ...
Page 131: ...S0602170K Page 26 Axle ZF AP 420R Differential Carrier DK ...
Page 135: ...S0602170K Page 30 Axle ZF AP 420R Differential Carrier HK Figure 16 ...
Page 178: ...S0602170K Page 73 Axle ZF AP 420R ILLUSTRATED TABLE Figure 152 ...
Page 194: ...S0602170K Page 89 Axle ZF AP 420R ILLUSTRATED TABLE Figure 196 ...
Page 210: ...S0602170K Page 105 Axle ZF AP 420R ILLUSTRATED TABLE Figure 242 ...
Page 225: ...S0602170K Page 120 Axle ZF AP 420R ILLUSTRATED TABLE Figure 289 ...
Page 251: ...S0605050K Page 26 Air Conditioner Return to Master Table of Contents ...
Page 261: ...S0607080K Page 10 Transmission and Torque Converter ZF 4WG 310 Figure 2 ...
Page 264: ...S0607080K Page 13 Transmission and Torque Converter ZF 4WG 310 ...
Page 271: ...S0607080K Page 20 Transmission and Torque Converter ZF 4WG 310 ...
Page 296: ...S0607080K Page 45 Transmission and Torque Converter ZF 4WG 310 ...
Page 447: ...S0607900C Page 36 Transmission Error Codes ZF ...
Page 448: ...1HYDRAULICS ...
Page 478: ...S0705010 Page 22 Cylinders Return to Master Table of Contents ...
Page 489: ...S0708460K Page 11 Main Pump Denison T6DMY Series ...
Page 490: ...S0708460K Page 12 Main Pump Denison T6DMY Series PARTS LIST Figure 8 ...
Page 504: ...S0708460K Page 26 Main Pump Denison T6DMY Series ...
Page 508: ...S0708470K Page 4 Steering and Brake Pump Denison T67DB Series PARTS LIST Figure 2 ...
Page 514: ...S0708470K Page 10 Steering and Brake Pump Denison T67DB Series DISASSEMBLY Figure 5 ...
Page 521: ...S0708470K Page 17 Steering and Brake Pump Denison T67DB Series ...
Page 522: ...S0708470K Page 18 Steering and Brake Pump Denison T67DB Series REASSEMBLY Figure 15 ...
Page 528: ...S0708470K Page 24 Steering and Brake Pump Denison T67DB Series ...
Page 548: ...S0709476K Page 2 Pilot Control Valve Return to Master Table of Contents ...
Page 554: ...S0709476K Page 8 Pilot Control Valve Return to Master Table of Contents ...
Page 557: ...S0709665K Page 3 Flow Amplifier Danfoss GENERAL DESCRIPTION Figure 1 ...
Page 558: ...S0709665K Page 4 Flow Amplifier Danfoss PARTS LIST Figure 2 ...
Page 609: ...S0709730K Page 7 Power Steering Unit Return to Master Table of Contents ...
Page 632: ...S0709730K Page 30 Power Steering Unit Return to Master Table of Contents ...
Page 638: ...S0709750K Page 6 Restriction Valve Return to Master Table of Contents ...
Page 644: ...S0793060K Page 6 Hydraulic Schematic Mega 500 V Return to Master Table of Contents ...
Page 645: ...1ELECTRICAL SYSTEM ...
Page 654: ...S0802190K Page 9 Electrical System Return to Master Table of Contents ...
Page 658: ...S0802190K Page 13 Electrical System Return to Master Table of Contents ...
Page 676: ...S0802190K Page 31 Electrical System Return to Master Table of Contents ...
Page 685: ...S0893060K Page 6 Electrical Schematic Mega 500 V Return to Master Table of Contents ...
Page 686: ...1ATTACHMENTS ...