Komatsu — Komatsu PC450-6K and PC450LC-6K Hydraulic Excavator Operation & Maintenance Manual

24. SERVICE PROCEDURE 24.1.21 REMOVAL OF BUCKET TEETH (ESCO VERTALOK ® TYPE) Replace the point before the adapter starts to wear. 1. Place a block under the bottom of the bucket to allow the pin to be knocked outwith a hammer. Carry out full stroke operation of the control levers within 15 seconds after stopping the engine. After confirming that the work equipment is in a stable condition, lock the safety lock lever. Set so that the bottom face of the bucket is horizontal. Block PC450-ENG 3-39 WARNING It is dangerous if the work equipment moves by mistake when the teeth are being replaced.

Set the work equipment in a stable conditions, then stop the engine and apply the safety lock lever securely. WARNING • When installing Vertalok® teeth, always work safely and use proper equipment to avoid injury. Wear OSHA-approved hard hat, safety glasses, gloves, and steeltoed shoes. Be sure other people are out of the way; only one person is needed to install Vertalok® points. • All struck tools or punches should have a bevel or radius around the striking face that is equal to 1/10th the width of the striking face. • The rubber plug should be removed prior to any heating or welding near the Vertalok® nose or adapter.