DESCRIPTION
Model Type: Hydraulic Puller
3-arms/2-arms pullers generally used when the object to be pulled is made of solid material and does not have a large diameter. Should the object have a large diameter and be of weak material, pin pulling should be used. The pulling bolts should then be attached as close as possible to the center to “lift off” the object. When using a grip puller, if possible, always use three arms and attach the safety chain 20-20 around the arms. When using the pin puller, it is always best to use three pulling bolts
Pulling
Attach the puller, apply the safety chain 20-20 if the grip puller is used and try to pull without heating. Figure 1 shows the importance of using three arms when pulling off bearings. When two arms are used only two of the balls in the bearing will be loaded giving the risk of breaking the outside ring.
Figure 2 shows the incorrect use of 3-arms/2-arms puller. A weak object will bend and squeeze against the shaft. This will increase with the additional force put on the puller. It will apply unnecessary forces. We recommend instead to use a pin puller