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Step 4.
Loosen the screw by hand until the connection is completely broken.
Step 5.
Separate two connectors by pulling them apart in parallel.
(2) Use of the toque wrench
The torque wrench should be used as indicated in Fig. 2.6. Please pay attention to the following points when using the
torque wrench:
Confirm that the torque of the torque wrench is set correctly before use;
Ensure that the angle between the torque wrench and the other wrench (used to support the connector or cable) is
less than 90
o
before applying a force;
Gently grasp the end of the torque wrench handle and apply a force in the direction perpendicular to the handle until
the breakout torque of the wrench is reached.
Torque direction
Stop applying a force when the handle bends
Fig. 2.6 Use of torque wrench
(3) Use and preservation of connectors
1) Protect the connectors with a protective sheath when not used;
2) Do not place the connectors, tools, etc. in a same box, which is the most common cause leading to connector damage;
3) Keep the connector and analyzer at the same temperature. If the connector is held by hand or cleaned with compressed
air, the temperature will be significantly changed. The connector can be used for calibration only after its temperature is
stabilized;
4) Do not touch the joint surface of the connector because it is difficult to remove skin oil and dust particles from the
joint surface;
5) Do not place the contact surface of the connector downwards onto a hard surface; otherwise, the electroplated layer
and joint surface of the connector may be damaged.
6) Wear an anti-static wrist strap and work on a grounded conductive workbench mat to protect the
analyzer and connector against electrostatic discharge.
(4) Cleaning of connectors
It is necessary to wear an anti-static wrist strap when cleaning the connectors as per the following steps:
1) Use clean low-pressure air to remove the loose particles on the thread and joint surface of the connector and check the
connectors thoroughly. If further cleaning is required, proceed as follows;
2) Wet (but not soak) a lint-free cotton swab with isopropyl alcohol;
