HEATER G. 8B1050 - Caterpillar

Personal injury or death can result from bucket falling.Block the bucket before changing bucket tips or side cutters.
Always wear safety glasses and wear protective clothing when you install and when you remove the pins.
The loss of bucket tips can often be attributed to the improper installation of the retaining pin into the tip and the adapter. Bucket tips are lost more frequently on excavators because the tips are closer together. Inserting the pin from the correct side (right side) of the adapter is difficult due to the small gap. More clearance can be obtained by installing the pin through the tip and the adapter from the left side, and then by driving the pin against the retainer. This procedure will often cause the spiral retainer to become distorted, resulting in either a loss of retainer grip or an increased difficulty in removing the pin.
Illustration 1 g01055530
Improper InstallationBy driving from the right side of the adapter, the retainer is properly supported by the counterbore of the adapter. This procedure will show that the pin chamfer is centered in the inside diameter of the retainer more clearly.
Illustration 2 g01055710
Proper installationInstall pin from the right side.Note: Special tools are available in order to help installing the pins in tight quarters.When you are removing the pins, continue driving the pins in the same direction.The tools that are available for driving the pins are shown in Table 1.
Illustration 3 g01055726
Proper installation procedure
Illustration 4 g01055812
Proper installation procedure
Table 1
Size of the Tip     Pin Remover    
J200, J225     143-2459    
J250, J300, J350     143-2460    
J350, J400, J460     196-1331    
J550     203-4290