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

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CHAP 5, SEC XI RELAY VALVE BODY ASSEMBLY-REBUILD PAR 117-121 Section XI. RELAY VALVE BODY ASSEMBLY—REBUILD 117. DESCRIPTION Refer to par. 19 for the description of the relay valve body assembly. 118. DISASSEMBLY (fig. 382, fold-out 11) a. Using a l/2-inch wrench, remove three cap screws 70 and lock washers 69 from relay valve body 73. b. Remove relay valve cover 68 and gasket 67. c. Remove two steer clutch relay valves 64 and 65 and spring 66. d. Remove drive clutch relay valve plug 78 and gasket 77. e. Remove drive clutch relay valve 76, spring 75 and pin 74. f. Using a l/2-inch wrench, remove three cap screws 58 and lock washers 59. Remove cover assembly 60 and gasket 63. g. Plugs 71 and 72 may be removed to aid in cleaning, if necessary. 119. CLEANING Refer to par. 71 for cleaning recom- mendations. 120. INSPECTION AND REPAIR Refer to par. 72 for general inspec- tion and repair recommendations. Repair and rebuild points of measurement for fits, clearances and wear limits are indicated by small, lower case letters in fig. 382, fold-out 11. Refer to par. 245 for wear limits information. 121. ASSEMBLY (fig. 382, fold-out 11) a. Install plug 71 if it was removed. Torque plug 71 to 96-120 pound-inches. Install plugs 72 if they were removed. Torque plugs 72 to 50-60 pound-inches. b. Install cover assembly 60 and gasket 63. Secure the cover with three 5/1 6-18 cap screws 58 and lock washers 59. Torque the screws to 13-16 pound- feet. c. Install steer clutch relay valve 64, long stem end first, into relay valve body 73. d. Install the other steer clutch relay valve 65, short stem end first, into the valve body. e. Install the steer clutch relay valve spring 66. f. Install cover 68 and gasket 67. Secure the cover with three 5/16-1 8 cap screws 70 and lock washers 69. Torque the screws to 13-16 pound-feet. g. Install drive clutch relay valve pin 74 and spring 75 into valve body. h. Install drive clutch relay valve 76, short stem end first, into the valve body. i. Install gasket 77 and plug 78. Torque plug 78 to 40-50 pound-feet. 116 Change 2