Maintenance and inspection
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9.5.2.1 Necessary devices
Make sure you have following devices for checking gas pressure.
9.5.2.2 Adequate gas pressure
Adequate nitrogen gas pressure in the compensating cylinder will vary depending to
temperature.
Refer to the following table.
Tab. 9-2: Adequate gas pressure according to the surface temperature of compensating cylinder
Description Order no.
Digital pressure gauge: FRDSG-1 170839
Tapered roller bearing 168211
Rapid action coupling: T2-770-G1/8
Valve 168213
Valve tool 168214
Thermometer (to measure the surface/level of the compensating cylinder)
Nitrogen - pressure gas cylinders
Gas filling device: Have a suitable facility at hand for the compressed gas cylin-
ders used in your region. For questions, please contact your Yaskawa represen-
tative.
Compensating cylinder
surface temperature
Adequate gas pressure
(MPa)
-10° 10.5
-5° 10.8
0° 11.1
5° 11.4
10° 11.6
15° 11.9
20° 12.2
25° 12.4
30° 12.7
35° 13.0
40° 13.2
45° 13.5
50° 13.8
55° 14.1
60° 14.4
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