hoistop
11th Apr 2013, 10:28
Just came over a technicality question:
Pratt&Whitney Canada states in its Maintenance Manual for PT6T engines (installed on Bell 412/212 and some Sikorsky) helicopters, that oil filters and P3 line air filters shall be cleaned by ELECTROSONIC cleaner every 100 hours.
I got an explanation that ULTRASONIC cleaners shall not be used for this cleaning, as theere is a possibility to cause damage to oil filter screens and such cleaning is reserved for overhaul facilities, where filters are appropriatelly inspected/tested after ultrasonic cleaning (required on 900 hours/2 yera intervals)
We have an ultrasonic cleaner available (operating on 47KHz freq with HF output power of 140 Watts.) and the question is is it OK to use it for regular 100h insp. cleaning of filters or do we need to purcase a dedicated electrosonic cleaner? (that, allegedly, works with lower frequencies/energy output)
What are you using? Any suggestion on this topic?
Thanks,
hoistop
Pratt&Whitney Canada states in its Maintenance Manual for PT6T engines (installed on Bell 412/212 and some Sikorsky) helicopters, that oil filters and P3 line air filters shall be cleaned by ELECTROSONIC cleaner every 100 hours.
I got an explanation that ULTRASONIC cleaners shall not be used for this cleaning, as theere is a possibility to cause damage to oil filter screens and such cleaning is reserved for overhaul facilities, where filters are appropriatelly inspected/tested after ultrasonic cleaning (required on 900 hours/2 yera intervals)
We have an ultrasonic cleaner available (operating on 47KHz freq with HF output power of 140 Watts.) and the question is is it OK to use it for regular 100h insp. cleaning of filters or do we need to purcase a dedicated electrosonic cleaner? (that, allegedly, works with lower frequencies/energy output)
What are you using? Any suggestion on this topic?
Thanks,
hoistop