Tactile Diagnosis Method For Hydraulic Faults in Hydraulic Press

Touch the temperature rise and working condition of the moving parts of the hydraulic press by hand: Touch the outer shell of the hydraulic pump and the outer wall of the oil tank by hand
And the temperature of the valve body shell. If the fingers feel cooler, it is about 5-10 ℃; If the fingers feel warm but not hot,
Approximately 20-300C; If the fingers feel hot and hot but can tolerate it, it is about 40-50C; If your fingers feel hot and
Can only tolerate 2-3 seconds, about 50-60 ℃; If the fingers feel hot and quickly retract when touched, it is about 70 (above ℃: average
When the temperature is above 60 ℃, the cause should be checked. A hydraulic press can feel vibration by touching the moving parts and oil pipes with your hands. Generally
The index finger, middle finger, and ring finger come into contact with the vibrating body together to determine its vibration status: if there is a slight pulse vibration sensation in the fingers, it is considered weak
Vibration; If there is a sense of wave trembling and vibration in the fingers, it is a general vibration; If there is a tremor sensation in the fingers, it is considered moderate vibration; If the hand
Those who have a sense of jumping and shaking are referred to as strong vibrations. By touching the oil pipe with your hand, you can determine whether there is oil flow inside the pipe. If there is no vibration in the fingers
The sensor is an oil-free air pipe; If there is continuous micro vibration sensation in the fingers, it is a pressure oil tubing; If there is no finger
Regular vibration sensation refers to an oil pipe with a small amount of pressure fluctuation oil. Touch the workbench with your hand to determine if it is crawling when moving slowly
Phenomenon: By touching control components such as gear blocks and microswitches, the tightness of the fastening screws can be determined.
(4) Smell diagnosis method is used to detect whether hydraulic oil has a burnt odor. If the hydraulic press smells a localized "coking" odor of hydraulic oil, then
The local heating of hydraulic components such as hydraulic pumps causes the surrounding hydraulic oil to be scorched, and based on this, the heating location and cause can be determined; Smell if the hydraulic oil has a foul odor or pungent spicy odor. If so, it indicates that the hydraulic oil has been severely contaminated and cannot be used again. In the work environment
Whether there is any odor, it can be determined whether the insulation of electrical components is burnt out, etc.: