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Chapter 2 Installation of this Device
(7) How to Open and Close the Case Cover
Take note of the following points when opening and closing the case cover:
The product is manufactured to ensure air tightness by eliminating any gap between the case cover
and the transmitter case.
Case cover tightening torque reference value: 10 to 15 N· m
10 cm
10 kgf
A diagram for 10 N·m pressure (≈ 100 kgf/cm)
Applying a force of 10 kgf at a location 10 cm away from the
center of the case cover will result in approximately 10 N·m.
Exercise care not to apply excessive force when opening or closing the case cover.
Tightening the case cover with excessive torque may result in the following problems:
- The case cover will be difficult to open.
- Other parts of the instrument may be damaged. (For example, the joint between the
transmitter case and the main unit may loosen, the aluminum transmitter case may break, etc.)
- Tightening the case cover with excessive force by hooking a tool in the grooves may cause the
tool to slip, resulting in injury.
- Tightening the case cover with excessive force by hooking a tool in the grooves may cause the
tool to slip, possibly scraping the coating off the case cover.
By opening or closing the case cover with a long tool (bar) placed in the grooves, a large torque can
be generated by a small force. If a long tool is used, hold it close to the case cover when turning it.
Hold the tool close to the case cover and
turn it.
Turning the tool while holding it far from
the case cover will produce an excessively
large torque with little force because of the
extra leverage. Do not do this under any
circumstances.
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