Trinity positive lift cylinder bearing replacement process to share

Trinity positive lift share 2018 - liter cylinder bearing replacement process 11 - 08 Yang Jian ( Dalian set port technology service co. , LTD. ) Cause: due to the trinity positive lift up oil cylinder is equipped with pressure differential protection function ( About lifting oil cylinder pressure is inconsistent, without lifting action, at the same time, the device will be lifting oil cylinder pin drops do after taking action, oil cylinder lifting upwards, so take the following process) 。 The work involves the special operation, need to open up certificate, when hot ticket, technical disclosure, etc. Process: positive hanging open to spacious location, the sling fell on the prepared container. 1, use the safety rope + hoist hook to hang in the sling to prevent oil cylinder and sling junction ( Or trunk shaft secure location) , on the other side also apply safety rope fixed to the lifting oil cylinder return pipe location (up and down This end must be conducted in accordance with the method, the main position to prevent safety) run up ； 2, forklift loading box, researchers used bolts or hammer (leisurely Need to welding) Take out the pin shaft; 3, release the pressure of lifting oil cylinder and the piston cylinder to move to a reasonable position, and prepare for the next job ( Adopt mechanical manner: slowly unscrew hydraulic valve body and lifting oil cylinder joint bolt, slowly release the hydraulic oil, to prevent too much pressure to personnel or equipment damage. Note: the sealing ring, using oil pan and clean the oil pollution, etc. ) ； 4. Remove the lifting oil cylinder bearing retaining circlip ( On both sides) , use a hammer and copper bar to take out the bearing ( Bearing by a GE140ES bearing and a 10 mm thick copper sets, pin shaft diameter of 120 mm) , direct hit GE140ES bearing; 5, and vice installation, stressed: to install the pin need to lifting oil cylinder action, the normal start up, adjustments have errors need to release oil cylinder oil ( As mentioned above) ； 6, complete the whole process of change, preview and smooth, commissioning, work out a clear, etc. Flow gradually perfecting the process of equipment maintenance, machine sales department will focus on troubleshooting, priority, incurable diseases, and equipment maintenance, the paper analyses the differences and similarities, accumulation, and actively communicate technology sharing, enhance the awareness of employees standardized operation and practical ability.