9-15
167109-1CD
HW1482308
9
Maintenance and Inspection
9.4 Gas Maintenance Procedure in the Gas Balancer
MS165
9.4
Gas Maintenance Procedure in the Gas Balancer
9.4.1 Notes on Gas Maintenance Procedure in the Gas Balancer
Be sure to read the following precautions thoroughly and understand the
contents before performing gas inspections or discharging/injecting gas.
Failure to observe this may cause malfunctions of the gas balancer or
occurrence of accidents or injury.
DANGER
•
This gas balancer uses high-pressure nitrogen gas.
•
Do not inject other gas than nitrogen gas to this gas balancer.
Failure to observe this may cause malfunctions of the gas balancer
or occurrence of accidents or injury.
•
There is a possibility of suffocation accident in the high-density
nitrogen gas environment. For this reason, enough ventilation is
required when performing the operations.
•
Before inspecting the gas pressure in the gas balancer or discharg-
ing/filling the gas from/into the gas balancer, confirm that the L-axis
motor brake is appropriately functioning and L-axis is firmly fixed so
that it will not rotate.
Failure to observe this may cause very dangerous situation due to
releasing of the L-axis motor brake. Because the L-axis without
retaining force leads the L-arm to rotate by the lengthened or short-
ened gas balancer.
CAUTION
•
When handling high-pressure gas, sufficient caution and observing
of the related laws and local government regulations are required.
•
For gas filling devices, contact your YASKAWA service
representative.
NOTE
To maintain the sealing performance, small quantity of oil
used may leak from the bottom part of the gas balancer.
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