TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
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TM 9-2815-220-24 STANDARD MAINTENANCE INSTRUCTIONS 0028 00 REPAIR (Continued) General Repair Information Procedures for repair will be the same for most engine and container parts. Standard repair instructions are detailed in this section. Special repair procedures are covered in the procedural work package relating to the specific part. The tools and expendable materials needed to perform standard repair instructions will be identified in the initial setup part of the procedural work package. CAUTION After repair, clean all parts thoroughly to prevent metal chips, resulting from repair operations or abrasive used in repair operations, from entering working parts of engine. Bearings See TM 9-214 (Inspection, Care, and Maintenance of Antifriction Bearings) for inspection and maintenance procedures for roller bearings, needle roller bearings, and ball bearings. 1. Replace all galled, pitted, or damaged bearings. 2. Replace all bearings that do not conform to tolerances specified in the appropriate Repair Standards table in the inspection section of the procedural work package. 3. Replace any bearing if defects are found. Bushings, Liners, and Bushing-Type Bearings When bushings, liners, and bushing-type bearings are damaged or worn beyond specified limits, generally the associated parts with which they are used must be replaced. To remove: 1. Drill out bearing retaining pins used to secure bearings in castings or retaining cages when applicable. 2. Press out bushing or bushing-type bearing with suitable arbor press (item 8, WP 0176). To install: 1. Align bushing, liner, or bushing-type bearing in casting or retaining cage. Press into place with an arbor press (item 8, WP 0176). 2. Select proper drill size for installation of bearing retaining pins. Drill through bearing and into casting or retaining cage to the proper depth so that the pin will be flush with the bearing surface after installation. Drive retaining pin through bearing and into casting or retaining cage. Cut off any portion of the pin that extends above bearing. 3. Ream or burnish bushing, liner, or bushing-type bearing to size specified in appropriate repair standards table in the inspection section of the procedural work package. 4. Clean repaired parts thoroughly before assembly or installation. WP 0028 00-14