TM-9-2520-234-35 Technical Manual for M109 Transmission XTG-411-2A Download

TM 9-2520-234-35 TECHNICAL MANUAL HEADQUARTERS DEPARTMENT OF THE ARMY No. 9-2520-234-35 Washington 25, D.C., 5 July 1962 POWER TRAIN ASSEMBLY (8351100) (ALLISON MODEL XTG-411-2A) CHAPTER 1. SECTION I. II. CHAPTER 2. SECTION I. II. III. IV. V. CHAPTER 3. CHAPTER 4. SECTION I. II. CHAPTER 5. SECTION I. II. III. IV. V. VI. VII. VIII. IX. X. XI. INTRODUCTION Paragraphs General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3 General description and data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–7 DESCRIPTION AND OPERATION Description and operation of input transfer assembly . . . . 8–10 Description and operation of main transmission assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11–25 Description and operation of right- and left- output drive assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-27 Operation of hydraulic system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-40 Torque paths through power train . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41–58 PARTS, SPECIAL TOOLS, IMPROVISED TOOLS, AND EQUIPMENT FOR FIELD AND DEPOT MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59-62 TROUBLESHOOTING General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63-64 Troubleshooting procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65–69 REPAIR AND REBUILD Preliminary instructions for power train overhaul . . . . . . . 70-72 Disassembly of power train into subassemblies . . . . . . . . . . . . . . . . 73-76 Input pressure and scavenge oil pump assembly— rebuild . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77-81 Torque converter—rebuild . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82-86 Flange adapter assembly—rebuild . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87-91 Input transfer gearing—rebuild . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92-96 Input transfer housing—rebuild . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97-101 Main-pressure regulator and lockup shift valve assembly—rebuild . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 102–106 Control valve assembly and oil transfer plate—rebuild . . . . 107-111 Steer valve body assembly—rebuild . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112-116 Relay valve body assembly—rebuild . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117-121 (Continued on next page) Page 1 6 11 13 24 25 46 62 69 69 74 77 104 105 108 109 110 111 112 114 116