YASKAWA MH180 Operating And Maintenance Manual page 68

Maintenance and inspection
9.5.2.1
Make sure you have following devices for checking gas pressure.
Description
Digital pressure gauge: FRDSG-1
Tapered roller bearing
Rapid action coupling: T2-770-G1/8
Valve
Valve tool
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.
9.5.2.2
Adequate nitrogen gas pressure in the compensating cylinder will vary depending to
temperature.
Refer to the following table.
Compensating cylinder
surface temperature
Tab. 9-2: Adequate gas pressure according to the surface temperature of compensating cylinder
-
9 68
Necessary devices
Adequate gas pressure
Adequate gas pressure
(MPa)
-10°
-5°
0°
5°
10°
15°
20°
25°
30°
35°
40°
45°
50°
55°
60°
Order no.
170839
168211
168213
168214
10.5
10.8
11.1
11.4
11.6
11.9
12.2
12.4
12.7
13.0
13.2
13.5
13.8
14.1
14.4