Condition Monitoring and Preventive Maintenance Techniques
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Brg/gear fatigue/wear Brg Temperature PdM
Bearing casing temperatures higher speed shafts
Bearing casing temperatures lower speed shafts
Casing Thermal Image (from all available directions)
Brg/gear fatigue/wear Visual PdM
Check build-up or debris around input or output shaft
Brg/gear fatigue/wear Lube Wear Debris PdM
Removable magnetic Chip collector–Quant. analysis
Online magnetic debris sensor – simple alarm
Online magnetic debris sensor – quantitative monitoring
Automatic Ferro-graphic analysis - Laboratory
Removable magnetic Chip collectors – Visual analysis
Oil sampling & lab analysis including PQ
Patch testing with microscope analysis – Laboratory
Patch testing microscope & XRF spectro analysis – Lab
Drain plug magnetic chip collector – Visual analysis
Brg/gear fatigue/wear High Friction PdM
Motor current for no operating load condition
Motor current for known operating load
Brg/gear fatigue/wear HS Gear/Brg Prob PdM
Vibration monitoring(VA) high speed shafts (simple vibration meter)
Vibration analysis (VA) high speed shafts (data collector)
Online VA high speed shafts
Brg/gear fatigue/wear LS Gear/Brg Prob PdM
VA - demodulated vibration all bearing points (DC)
Online VA demodulated vibration (including low speed)
VA – Time domain analysis all bearing points (DC)
Time synchronous averaging TSA time domain (cyclic)
nline Time synchronous averaging TSA time domain
Time synchronous averaging TSA (taco input required)
Listening rod (or equivalent) audible noise analysis
Brg/gear fatigue/wear Lube Condition PM
Change oil including flushing out bottom sludge
Change out 50% of oil volume Isol 2 years
Brg/gear fatigue/wear Lube Condition PdM
On-site oil mini-lab (oil condition, cleanliness, PQ, etc) Oil sampling with lab lube condition assessment Portable FTIR monitoring (lube condition) Portable oil dialelectric testing (lube condition) Oil sample on change out with lab oil analysis
Brg/gear fatigue/wear Lube Contam. PM
Oil filtration with mobile filter cart
Strip, inspect and replace seals
Brg/gear fatigue/wear Lube Contam. PdM
Check breather desiccant colour change. Change if req.
Patch testing on-site- comparison chart ISO cleanliness
On-site portable sensor ISO cleanliness analysis system
Online particle counting cleanliness analysis system
Oil sampling with lab particle count-ISO cleanliness code
Test input & output shaft seals (pressure test)
Bottom Oil sampling with visual analysis
Lowest point drain sight glass (Water check)
Brg/gear fatigue/wear Lube Temp PdM
Oil Temperature or equivalent (eg. lower casing temp) Oil Temperature - Online
Brg/gear fatigue/wear Poor Condition PM
Remove, strip, inspect, NDT gears and replace seals
Strip, inspect, NDT gears, replace bearing & seals
Replace with a new gearbox
Brg/gear seizure Lube Level PdM
Oil level check & filtered top up if required
Check for visual indications of oil leaks
Coupling failure ? PdM
Coupling checks (depending on coupling type)
Coupling Inefficiency Coupling Temp PdM
Non-contact temperature of input coupling
Non-contact temperature of output coupling
Thermal Image of input & output coupling
Worm wheel wear Worm Backlash PdM
Measure worm backlash angle
