Siemens SIMOTICS A 1FU8, Operating Instructions Manual

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Operation
8.4 Deactivating
1FU8
76
Operating Instructions, 02/2016, 5 610 70000 02 000
Table 8- 2 Mechanical effects
Mechanical fault characteristics
↓ Grinding noise
↓ Overheating
↓ Radial vibrations
↓ Axial vibrations
Possible causes of faults
Remedial measures
1)
X Rotating parts are grinding Determine cause and adjust parts concerned
X Reduced air supply, fan possibly rotating in the wrong
direction
Check airways, clean machine
X Rotor not balanced. Check feather key declaration (H, F, N)
X Rotor out of true, shaft bent Please consult the manufacturer.
X X Poor alignment Align machine set,
check coupling.
2)
X Coupled machine not balanced Re-balance coupled machine
X Surges from coupled machine Inspect coupled machine
X X Imbalance originating from gearing Adjust/repair gearing
X X Resonance in the overall system (comprising machine
and foundation)
Reinforce foundation following consultation
X X Changes in foundation Determine cause of changes; eliminate if neces-
sary; realign machine
1) In addition to the cause of the fault (according to remedial measures), also eliminate the
damage caused to the machine, if necessary.
2) Note any changes that take place while the temperature is rising.
8.4 Deactivating
Commission any devices provided for protection against condensation after switching off the
machine.