Diagnosis and treatment of hydraulic oil supply system

Will speed manipulation Rod placed empty block location, respectively measurement idle speed and speed Shi of speed pressure value (containing cold machine and engine), if measuring have idle speed and speed Shi pressure value meet standard (actually, for using had of bulldozers its pressure than standard value has declined also is normal), and hot when pressure than cold when slightly has declined, description bulldozers hydraulic oil supply system normal. When idling low pressure and high pressure at full speed and pressure as the engine speed increases, shows bulldozers, hydraulic oil supply system is malfunctioning, with a focus on gear pumps, oil filters and other parts should be checked and ruled out one by one. If measurement Shi pressure fluctuations larger, description bulldozers hydraulic system has problem, also should one by one for troubleshooting, specific check project has: rear axle shell within of oil volume whether insufficient, insufficient will caused sucking air; tubing, and tube joint tight firmware, and interface liner, whether tight solid, tight solid bad will produced leak, and leak oil; fine filter and rough filter Shang cover of o shaped circle whether aging,.

Shantui road roller grader of the forward and backward directions, to stop the rotation of rollers, uphill time-varying velocity should be carried out with brake, shall not coasting in neutral downhill to ensure personnel safety. According to the environment when you need to increase the weight of the job, can join the sand in the wheels or water, increasing the weight of the machine, not water weight in the winter, preventing wheel Frost break. If necessary two machines at the same time maintain the spacing before and after work at more than 3M, not side-by-side at the ramp to prevent collisions.