This test will determine if a constant, steady vacuum exists at the teat cup at all times during milking. Check milk inlets for location and leaks. Maintain inlets in the top third of the pipeline to prevent vacuum fluctuations. Make sure valves close properly to prevent vacuum losses. Check for leaky couplings.
Check gaskets, fittings and non-return valve for leaks.
Check electrical probes for corrosion and wear. Milk Pump 1. Check bushings, seals and diaphragms. To assure proper performance and sanitation make necessary adjustments or replacements. Testing Equipment Dairy farmers may do much to maintain the performance of their milking and milk handling equipment but to locate many faults, regular checks by a person skilled in the use of the necessary scientific testing equipment are necessary.