1、 Maintenance knowledge of conventional structure of folding boom crane:

Normal maintenance of folding crane is very important. It can find early defects in advance and deal with them in time, which has a certain effect on extending the service life of crane parts. next, Huai'an crane rental The company will give a brief introduction to the projects that you can view on your own, hoping to help customers. The reverse organization of folding boom crane mainly introduces the maintenance of reverse reducer and reverse support.

1. Regular inspection and maintenance of the fixing bolts of the reverse support of the folding boom crane: if the operation is not good, shorten the inspection distance, check and remove.

2. The sundries between the reverse support and the reverse reducer teeth of the double folding boom crane shall be coated with polishing oil for normal maintenance.

3. Hang the folding arm on the upper surface of the reverse support gear ring, and evenly distribute 4 or more oil cups at the position aligned with the raceway, so as to add grease on the raceway.

Under normal circumstances, reverse support shall be carried out every 50 hours. Enough oil shall be added each time until the oil seeps from the seal. In order to prevent the bolt from loosening, failure and cracking, the user shall regularly check the bolt pretightening torque: after 10 hours of operation, the bolt shall be checked and tightened evenly; Check every 500 hours thereafter;

2、 Maintenance knowledge of conventional structure of folding boom crane:

If any bolt looseness is found to be lower than 80% of the normal torque after 200 hours of cumulative operation, the bolt and two adjacent bolts shall be replaced. If 20% of bolts are found to be loose, which is lower than 80% of the normal torque, all bolts shall be replaced. Replace all bolts after 14000 hours of operation.

1. Planetary backstepping reducer: the device method is mainly the backstepping device. Check whether the national bolt is loose. Investigate the gear engagement through the survey hole on the bottom plate surface of the rotary table, and add grease to smooth the gear between the eyebrows. Check whether the motor balance valve and control oil pipe are loose.

2. Worm gear reducer: check whether the smooth oil cover of the oil cup is short. In case of shortage, press Huai'an Crane Rental Longlun worm oil supplied shall be replenished.

The model is; L-ckei/P (winter vg-460, summer vg-680). If the reducer housing is found to be full and oil flows out from the outlet plug, it is suspected that the motor shaft seal is damaged and the oil flows into the reducer housing. Check the reverse gear shaft for looseness, upward movement and shaking; Check whether the fixing bolts fixing the reversing reducer are loose.