Keysight M8057B - Page 5

Final Connection Using a Torque
Wrench
• Use a torque wrench to make a final
connection. Using a torque wrench
guarantees that the connection is not too
tight, preventing possible connector damage.
It also guarantees that all connections are
equally tight each time.
•
Prevent the rotation of anything other than
the connector nut that you are tightening.
Using the Torque Wrench
• Hold the torque wrench lightly, at the end of
the handle only (beyond the groove). See the
following figure.
• Apply downward force perpendicular to the
wrench handle. This applies torque to the
connection through the wrench. Do not hold
the wrench so tightly that you push the
handle straight down along its length rather
than pivoting it, otherwise you apply an
unknown amount of torque.
You don’t have to fully break the handle
of the torque wrench to reach the
specified torque; doing so can cause the
handle to kick back and loosen the
connection. Any give at all in the handle
is sufficient torque.
• Tighten the connection just to the torque
wrench break point. The wrench handle
gives way at its internal pivot point as
shown in the figure. Do not tighten the
connection further.
Torque Wrench Information
Connector Type
Torque lb-in (Nm)
Precision 3.5 mm 8 (0.90)  Torque Wrench 8710-1765,
but 5 (0.57)  Torque Wrench 8710-
1582 will not damage
SMA 5 (0.57)  Torque Wrench 8710-1582
Use the SMA torque value to connect
male SMA connectors to female
precision 3.5 mm connectors. Use the
3.5 mm torque value to connect male
3.5 mm connectors to the female SMA
(8 lb-in)
2.92 mm
(no dielectrics)
8 (0.90)  Torque Wrench 8710-1765,
but 5 (0.57)  Torque Wrench 8710-
1582 will not damage
Precision 2.4 mm 8 (0.90)  Torque Wrench 8710-1765
Precision 1.85 mm 8 (0.90)  Torque Wrench 8710-1765
Get the latest information about your
product
• For 14-slot chassis related information, see:
http://www.keysight.com/find/M9514A
• For 5-slot chassis related information, see:
http://www.keysight.com/find/M9505A
• For 2-slot chassis related information, see:
http://www.keysight.com/find/M9502A
• Check M8040A product information:
www.keysight.com/find/M8040A
• Check M8030A product information:
www.keysight.com/find/M8030A
• Check M8020A product information:
www.keysight.com/find/M8020A
• Check for updated service notes:
www.keysight.com/find/servicenotes
• For worldwide service locations information,
see:
www.keysight.com/find/assist
CAUTION
5