GUARD AS 3978606 - Caterpillar

Personal injury or death can result, if the bucket is not blocked up. Block the bucket before changing cutting edge.
Illustration 1 g00804790Check for bolts that are missing or loose. Replace any missing bolts and tighten any loose bolts.Reference: Refer to Operation and Maintenance Manual, "Torques for Ground Engaging Tool Bolts" for the correct torque.Inspect the cutting edges and the end bits. If wear or damage is evident, use the following procedure to replace the components.
Raise the bucket and place blocking under the bucket. Lower the bucket onto the blocking. Note: Do not block up the bucket too high. Block up the bucket enough for removing the cutting edges and the end bits.
Remove bolts (1). Remove cutting edges (2) and the end bits.
Clean the contact surfaces. Inspect the cutting edges and install the cutting edges. If the opposite side of the cutting edge is not worn, use that side. If both sides of the cutting edge are worn, install a new cutting edge.
Install bolts (1). Tighten the bolts to the specified torque.
Raise the bucket and remove the blocking. Lower the bucket to the ground.
After a few hours of operation, check the bolts for proper torque.