PLUG-ORIFICE 3398928 - Caterpillar

Introduction
Use of 8C7946 Teflon Washers and 1K6872 Lock Nuts along with reduced bolt torque for the auger (segments), will reduce the load on the cast auger segments, and kicker tips, if applicable. This will reduce cracking and breakage on the above models.Do not perform any procedure, outlined in this publication, or order any parts until you read and understand the information contained within.Installation
Typical Auger Group.1. Clean shaft and mating parts before installing auger (segment) sections and kicker tips. Use existing hardware where applicable.2. Using eight 8C7946 Teflon Washers (1) and four 1K6872 Locknuts (2), install the auger halves (segments) as shown. Tighten locknuts at location (A) to a torque of 54.4 9.5 N m (40 7 lb ft).3. Where applicable, use four 1K6872 Locknuts (2) to install kicker tips (3). Tighten locknuts at location (B) to a torque of 34 6.8 N m (25 5 lb ft).4. Use one 1K6872 Locknut (2) to install mount assemblies (AP-1050), or cover assemblies (AP-800B). The 1K6872 Locknuts and the new bolt torques for the auger segments are adaptable to the AP-800 and AP-1200. There are no kicker tips on these machines.