9-17
167109-1CD
HW1482308
9
Maintenance and Inspection
9.4 Gas Maintenance Procedure in the Gas Balancer
MS165
9.4.2.2 Necessary Device
Prepare following devices when checking the gas pressure.
• Gas filling device: HW1485204
The device includes:
Digital pressure gauge: GC64-173
Quick connector: 10-358-6297
• Thermometer (for measuring the gas balancer surface)
9.4.2.3 Inspection Procedures
1. Move the manipulator to the home position and turn OFF the power
supply of the DX200.
2. Remove the cover and the hexagon socket head screw plug M6 with
flange, which are mounted to the gas inlet, and insert the quick
connector.
3. Connect the gas filling device to the quick connector after confirming
that the blowdown valve, needle valve, and gate valve of the gas filling
device are firmly closed.
4. Check the temperature of the gas balancer surface.
5. Slowly open the needle valve of the gas filling device, and then check
that the pressure indicated on the digital pressure gauge is satisfying
the value shown in
table 9-9 “Adequate Gas Pressure per Gas
. Depending on the value, procedures
after this are subject to change.
Case 1: When the value is exceeding the adequate value
→
Discharge the gas till the value satisfies the adequate
value.
chapter 9.4.3 “Gas Discharging Procedure”
Case 2: When the value is lower than the adequate value by
0.5 MPa or more.
→
Inject the gas till the value satisfies the adequate
value.
chapter 9.4.4 “Gas Injecting Procedure”
.)
Other than Case 1 and 2 :
→
Proceed to Step 6.
6. Close the needle valve of the gas filling device, and then remove the
gas filling device from the quick connector.
DANGER
Before inspecting the gas pressure in the gas balancer or discharging/
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 shortened
gas balancer.
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