Milking System Troubleshooting
Contents
1. Milking System Troubleshooting Inadequate vacuum or vacuum fluctuation may have several possible causes the vacuum pump is too small e restricted airflow in vacuum or pulsation line e sticky vacuum regulator worn vacuum pump belt e air leaks in vacuum system due to cracks poorly sealed junctions or broken components vacuum lines or milk lines too small High system vacuum level may be due to vacuum regulator out of adjustment e sticky vacuum regulator Reasons for pulsators operating too fast or too slow may include e pulsators out of adjustment if pneumatic pulsators system vacuum may be incorrect e pulsators may be dirty air inlet constricted e worn pulsators may need repair or replacement The main cause of teat cup drop off is low claw vacuum level Check for the following e low system vacuum e milk pipeline too high vacuum pump capacity inadequate for number of milking units plugged claw or teat cup air inlets e air leaks in pipeline couplings valves junctions air tubes If milking times become extended check milking times for a number of cows on each milking unit If slow milking is a problem for all cows at all milking units check for e low system vacuum e pulsator controller out of adjustment pulsation rate too slow or pulsation ratio too low If slow milking occurs at specific milking units only check for pulsator out of adjustment pulsation rate t2. oo slow or pulsation ratio too low e cracked and leaking long vacuum tube or short vacuum tubes e plugged claw or teat cup air inlets e cracked and leaking teat cup liners continued Milking System The following may be causes of incomplete milk removal Troubleshooting inadequate premilking stimulation for maximum oxytocin continued release delay in attachment of cluster after preparation e early removal of cluster teat cup crawl caused by excessive teat end vacuum level e cow in heat stray voltage cow stress due to noise or changes in routine or personnel If residue builds up in the milk pipeline in spite of routine milk system cleaning check wash water temperature check hot water heater thermostats and water pressure e detergent strength in alkaline wash solution check manufacturer s recommendation e compatibility of alkaline wash and acid rinse products used use products from single manufacturer recommended for use together source Dairy Production Primer Milking and Milking Equipment 2004 Western Dairy Science Inc
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