Operation using unreasonable

 Operation using unreasonable : the premise of quality assurance , if used properly, will greatly shorten the high pressure hose to life. Practical work, much of the damage is due to high pressure hose caused by improper use . ( A ) subject to frequent and intense pressure shocks . High pressure hose to burst , not generally caused due to too much pressure under static , but with the stress intensity and frequency of shocks related . Construction machinery in operation, hydraulic tubing will be repeated sudden increase or decrease , and thereby constitute a frequent tubing pressure shocks , resulting in damage to seals ministries intensified, blistering and cracking high-pressure hose and fittings loose leakage. Therefore, in operation, the valve stem can not be pulled too much , must be gentle . ( 2 ) use of the oil temperature. Engineering machinery operation, Hydraulic tube fittings system power loss due to fluid leaving the heat , coupled with the impact of the outside temperature ( especially in the summer ) , make the oil dramatically. Fluid temperature is higher, the more easy to aging rubber elasticity variation, strength and sealing performance, high pressure hose will soon burst. Thus, in operation, when the hydraulic system in the temperature is too high , too fast , it is timely to identify the reasons , be excluded ; summer jobs , especially in continuous operation , should take the necessary measures to cool . ( 3 ) high-pressure hose selection, installation is unreasonable. When replacing the high-pressure hose , high pressure hose chosen length of wire layers, joints must be reasonable shape and size , and should minimize the degree of bending of high pressure hose ; tighten the connector nut , do not allow high pressure hose distorting , too large bending and twisting will greatly reduce the service life of high-pressure hose ; prone to some friction parts should take protective measures to prevent high pressure hose wire layer due to wear and impact . Furthermore due to wire corrosion, reducing wear thin led force , causing burst.