LINES GP- 1401692 - Caterpillar

Introduction
This special instruction contains the necessary procedures and information for the installation of the slag pins for the large mining excavators. The slag pins consist of two parts, the pin and the wedge.The slag pins should be used in place of standard flex pins when it is evident that rubber deterioration due to long tip life or extreme operating conditions allow the tips to become loose on the adapter and pin loss may occur.Do not perform any procedure, outlined in this publication, or order any parts until you read and understand the information contained within.
Do not attempt to assemble the slag pins until you read and understand the assembly instructions. Improper procedures could result in injury or death.
Procedure To Install Slag Pin Assembly
This installation procedure should be used as a reference to install slag pins for the different sizes of tips available.
Wear safety glasses with protective side shields. Personal injury may occur if proper safety equipment is not worn.
Illustration 1. Typical view of slag pins installed. Callout (B) designates the top of the tip. Arrow indicates the direction the wedge should be driven.1. Slide tip onto the adapter. Insert the rear pin (C) centering it in the adapter/tip holes as shown in Illustration 1. The narrow part of the pin should be at the bottom.2. Drive the wedge (D) from the bottom using dead blow sledge. The size of the dead blow sledge should be appropriate for the pin and wedge used. Bucket operation tends to jam the pins upward, installing the wedge from the bottom will cause the two parts to remain tight.3. Operate the bucket for a few loads.4. Using dead blow sledge, drive the wedge (D) again to make sure it is secured.5. Weld the installed pin and wedge together near the top at location (A) shown in Illustration 1.
Illustration 2. Typical view of slag pin installed.6. To provide protection for the weld, bend the long part of the wedge over the rear part of the pin as shown in Illustration 2 by (F). Weld at location (E) as shown Illustration 2.7. Cut the excess part of the wedge that extends below the tip as shown in Illustration 2 by (G). The installation procedure can be reversed to make it easier to drive the wedge in with heavy blows from the top. Operating Conditions, however, may cause wear on the bottom of the tip to reach the wedge weld prematurely, resulting in wedge upward movement and eventual tip loss.