Siemens 1D Series User Manual

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 33/42
4.5 Diagnostics of defects
4.5.1 Mechanical causes
Breakdown
Possible cause Remedy precaution
Scratchy noise Bearings are overheated Excessive temperature of
generator
Radial vibration Axial vibration Excessive noise
•
Contact of rotor or shaft with
solid parts of machine appears
Find and eliminate cause
•
Limited access of air, excessive
amount of dust in winding,
dust in cooler ducts
Perform check of access of air,
pollution of winding, check cooler
•
Polluted or blocked air filter (if
it is equipped)
Filter exchange, if need to clean
•
Cooler function gets worse
(goes for design with water
cooler)
Clean cooler with regards to
operational instructions, check
amount of cooling medium, vent
cooler
•
Unbalance on rotor
Contact producer and require
balancing
•
Unbalance in coupling Rebalancing
•
Transfer of vibration from
linked machine
Check of linked machine
• •
Badly fixed generator in
foundation or changes in
foundation
Level machine, check foundation,
and tightening of generator
• •
Resonance with foundation Strengthen foundation
•
Lack of lubricant in bearing Check amount of lubricant in bearing
•
Bearing is overloaded
Check tightening, levelling and
clamping of machine
•
Damaged or badly worn out
bearing
Perform exchange
Tab. 9 Mechanical causes

Siemens 1D Series Specifications

General

Brand	Siemens
Model	1D Series
Category	Portable Generator
Language	English