Symptoms | Cause of the malfunction | Approach |
| Stuffing box Leakage too much | 1 , packing wear 2 , the packing pressure is not tight 3 , packing installation error 4 , pump shaft bending or wear | 1 , replace the packing 2 , tighten the packing gland or add filler 3 , re-install packing 4 , repair or replace the pump shaft |
| Overheating filler | 1 , packing pressed too tight 2 , the filler can not enter the cooling water 3 , shaft and sleeve surface is damaged | 1 , appropriate to relax the packing 2 , loose packing or infusion tube packing ring hole is blocked 3 , repair the shaft surface or replace the sleeve |
| Bearing overheating | 1 , poor lubrication oil or insufficient oil 2 , the shaft has been bent or bearing ball out of round 3 , the bearing is not installed properly or the gap is not appropriate 4 , pump shaft and motor shaft concentricity does not meet the requirements 5 , the bearing has been worn or loose 6 , balance plate loss of effect | 1 , replace qualified new oil, and add enough oil 2 , repair or replacement parts 3 , check and repair 4 , find out again 5 , check or replace the bearing 6 , check the balance is clogged, overhaul balancing disc and balance ring, the two should be parallel to each other and make it perpendicular to the pump shaft; replace the balance ring or balance disc |
| vibration | 1 , the uneven wear of the impeller or part of the runner block, resulting in impeller imbalance 2 , bearing wear 3 , pump shaft bending 4 , the pump seal ring, balance ring and rotor friction part 5 , rotating parts of the loose or broken 6 , Cavitation occurs in the pump 7 , two coupling bad combination 8 , anchor bolts loose | 1 , the impeller balance correction or cleaning impeller 2 , repair or replacement of bearings 3 , straighten or replace the pump shaft 4 , eliminate friction while ensuring a smaller seal gap 5 , repair or replacement of wear parts 6 , eliminate the causes of cavitation 7 , readjust the installation 8 , tighten the anchor nut |
With leading technology and rich industrial experience, Eurocrane, based on customer needs and the modular design concept, has developed the EWH Electric Wire Rope Hoist which having many patents. The blocks adopt the trend-leading C-shaped design, delivering compact structure, smooth operation and accurate positioning. Making use of variable frequency control technology, braking energy feedback technology, security monitoring technology and others, EWH Wire Rope electric Hoist is always the leader in the industry. EWH electric wire rope hoist is capable of providing your with better logistics solutions and ensure that equipment carries out reliable and safe operation.
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