Maintenance of Branche Crusher

1. If the rivet head of the impeller is worn out, the wear-out rivet head can be returned to its original normal state by pressing the impeller body and the hub and welding surfacing.

2. In the case of fatigue crack at rivet hole, the whole unused new electrode can be used to repair the crack by welding, but the crack should be symmetrically centered on the axis of impeller.

The remedial electrodes are left there, and a new electrode is used to repair the cracks in the relative rivet hole. The remaining electrodes after welding are as long as the remaining electrodes when the symmetrical rivet is repaired.

Guarantee the equal weight of welding repair. If there is no crack in the symmetrical rivet hole, the welding rod should be overlayed here to offset the newly repaired welding weight at the symmetrical rivet hole crack. According to this

Cracks can be repaired by welding with symmetrical weighting.

3. Simple dynamic balance test of impeller is also simple. Pull the impeller up and turn it gently by hand. If the impeller is not balanced, it will stop at the lowest point and swing left and right.  If there is a bias in the opposite impeller spot welding, increase the weight to make it balanced, or use angle mill to grind off the welding marks of the bias impeller, can also achieve balance, so that the fan can be repaired.