TROUBLESHOOTING
1-6 Noise is generated in the unit. (Noise check)
Noise check
Gas leaks in the high pressure part.
Check the joints of each pipe.
Looseness?
Hole?
Note 1: With the characteristic of the electric-pneumatic ratio valve, if gas is fed
with the connector opened, the safety valve may function. This is not a
defect.
Replace the manifold U.
Electric-
pneumatic ratio
valve?
Primary pressure
reducer safety valve?
Note 1
Replace the electric-
pneumatic ratio valve.
Replace the primary
pressure reducer.
Manifold U?
End
Is noise generated during
gas feeding?
Is noise generated during
halt of operation?
2-7
Summary of Contents for UHI-2
Page 1: ...MAINTENANCE MANUAL UHI 2...
Page 31: ...EXPLODED PARTS DIAGRAM MODEL UNIT UHI 2 REAR PANEL FR 1107 FIG 3 7 EXPLODED PARTS DIAGRAM 4 3...
Page 32: ...EXPLODED PARTS DIAGRAM MODEL UHI 2 UNIT FLOW SENSOR FR 1107 FIG 4 7 EXPLODED PARTS DIAGRAM 4 4...
Page 33: ...EXPLODED PARTS DIAGRAM MODEL UHI 2 UNIT REGULATOR FR 1107 FIG 5 7 EXPLODED PARTS DIAGRAM 4 5...
Page 34: ...EXPLODED PARTS DIAGRAM MODEL UHI 2 UNIT TUBE FR 1107 FIG 6 7 EXPLODED PARTS DIAGRAM 4 6...
Page 35: ...EXPLODED PARTS DIAGRAM MODEL UHI 2 UNIT CABLE FR No 1107 FIG 7 7 EXPLODED PARTS DIAGRAM 4 7...