Preventative Maintenance; Service Intervals - Parker BA-DME012-E Guide De L'utilisateur

6 Preventative Maintenance

6.1 Service Intervals

Component Operation
Dryer Check POWER ON indicator is illuminated.
Dryer Check STATUS / FAULT indicators located on the controller.
Dryer Check for air leaks.
Dryer Check the pressure gauges during purging for excessive back pressure.
Dryer Check the condition of electrical supply cables and conduits.
Dryer Check for cyclic operation.
Replace the active exhaust silencers
Dryer
Recommended Service
Replace the coalescing filters and service the auto-drains
Filtration
Recommended Service
Replace the adsorption filters - Activated Carbon
Filtration
Recommended Service
Replace the adsorption filters - Hopcolite
Filtration
Recommended Service
Replace / Calibrate dewpoint transmitter
Dryer
Recommended Service
Complete valve overhaul
Dryer
Recommended Service
Replace the desiccant
Dryer
Recommended Service
(1) Unlike oil aerosol removal filters which are changed annually to guarantee compressed air quality, the lifetime of an oil vapour removal filter can be attributed to various factors and
require more frequent changes. Factors affecting the lifetime of adsorption filters are:
Oil vapour concentration - The higher the inlet concentration of oil vapour, the faster the activated carbon capacity will expire.
Bulk oil - Adsorption filters are designed to remove oil vapour and odours, not liquid oil or aerosols. Poorly maintained or non-existent pre-filtration will cause the OVR filter capacity to
quickly expire.
Temperature - Oil vapour content increases proportionally to inlet temperature, reducing element life. Additionally, as temperature increases, the adsorption capacity decreases, again
reducing element life.
Relative Humidity or Dewpoint - Wet air reduces the adsorptive capacity of the carbon.
Compressor oil changes - When compressor oil is changed, the new lubricant burns off "light ends" which increases the oil vapour content for hours or even weeks
afterwards. This increase in oil vapour content is adsorbed by the OVR filter, significantly reducing its adsorptive life.
ACS / AC element performance is based upon a maximum oil vapour inlet concentration of 0.018mg/m
These elements should be replaced upon detection of vapour, odour or taste.
(2) Under normal operating conditions the HC cartridge should be replaced every 12 months. If an oil vapour incident occurs then we recommend that the AC and HC stages are
replaced at the same time .
Key:
Check
Description of Service Required
(1)
(2)
Process
3 o
, with compressed air at 21
15
Service recommended every:
See Note (1)
See Note (2)
o
C and a pressure dewpoint of -40 C PDP.
Replace