*TM 9-2520-246-34 Technical Manual HEADQUARTERS DEPARTMENT OF THE ARMY No. 9-2520-246-34 Washington, D.C. 12 May 1978 DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL FOR TRANSMISSION MODEL 3052, NSN 2520-00-347-4520 IMPORTANT NOTICE TM 9-2520-246-34 should be used only for transmission model 3052. For transmission model 3053A, transmission transfer models T-136-21 and T-136-27, and power take- off models WN-7-28, WND-7-28, and P-136-C, use only TM 9-2520-246-34-1. Current as of 1 September 1977 REPORTING OF ERRORS AND RECOMMENDING IMPROVEMENTS You can help improve this manual. If you find any mistake or if you know of a way to improve the procedure, please let US know. Mail your letter, DA Form 2028 (Recommended Changes to Publication and Blank Forms), or DA Form 2028-2 located in the back of this manual direct to: Commander, U.S. Army Tank Automotive Materiel Readiness Command, ATTN: DRSTA-MB, Warren, Michigan 48090. A reply will be furnished to you. CHAPTER 1. Section I. II. CHAPTER 2. Section I. II. III. IV. CHAPTER 3. Section I. II. III. IV. V. VI. * This manual Table of Contents Paragraph Page INTRODUCTION General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1-1 Description and data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1-1 DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE INSTRUCTIONS Repair parts, special tools, and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2-1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 2-1 General maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 2-15 Removal and installation of major components and assemblies . . . . . . . . . . . . . . . 2-12 2-18 REPAIR OF TRANSMISSIONS Description, operation, and data (model 3052) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3-1 Description, operation, and data (model 3053A) . . . . . . . . . . . . . . . . . 3-4 3-9 Repair (model 3052) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 3-11 Repair (model 3053A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 3-21 Test and adjustment (models 3052 and 3053A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 3-21 Repair and replacement standards (models 3052 and 3053A) . . . . . . . . . . . . . . . . . 3-16 3-21 supersedes TM 9-2520-246-35, 29 November 1965, including all changes. Changes 1 i