TM-9-2520-234-35 Technical Manual for M109 Transmission XTG-411-2A Download
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*C2 PAR 151-153 REAR HOUSING REBUILD CHAP 5, SEC XVIII d. Position oil separator plate assembly 36 on pump drive shaft 40 and retain it with two retaining rings 35 and 39. e. Insert key 34 in its groove on drive shaft 40, at the end opposite the splined end. Install drive gear 33. f. Place pump cover assembly 28 on the assembly table, inside up, and install the as- sembled shaft, plate assembly and gear in the cover. g. Install the remaining separator plate assembly 23 on idler gear shaft 22 and retain it with two retaining rings 35 and 39. h. Position the idler gear 26 over there- maining bearing bore in the cover and install the assembled idler gear shaft and plate as- sembly. i. Install the remaining idler gear 21 on shaft 22, and drive gear 43 and key 41 on the drive shaft 40. j. Install pump cover assembly 44 on pump body 32, indexing dowel pins 46 with their holes. k. Install the assembled cover assembly 44 and body 32 over shafts, gears and sepa- rator plates onto cover assembly 28. Install seven bolts 27 and 52 to retain each cover as- sembly. Torque them to 17-20 pound-feet. l. Install brake coolant oil pump drive gear 49 on the splined end of pump drive shaft 40. Install lock pin 42 through the gear and bend the ends of the pin to lock it. n. Assemble both sets of brake coolant oil check valve components 64 through 68 on brake coolant pump manifold 56. o. Install pump assembly 20 and gasket 54 on manifold 56 and secure with three 3/8- 16 bolts 60 with lock washers 59 and three 3/8-16 self-locking bolts 53. Torque the cap screws 60 to 26-32 pound-feet. Torque tine self-locking bolts 53 to 36-43 pound-feet. Section XVIII. REAR HOUSING ASSEMBLY—REBUILD 152. DESCRIPTION Refer to pars. 17 and 18 for the descrip- tion of the rear housing components. 153. DISASSEMBLY (figs. 377, 378, 379, 380, fold-outs 6, 7, 8, 9) a. Using a 9/16-inch wrench, remove two self-locking bolts that retain brake air valve assembly (fig. 175). Remove the valve assembly. b. Remove the retaining ring on the air valve assembly (fig. 175 ). c. Remove the pin, and disassemble the air valve assembly (fig. 175). d. Using a 9/16-inch wrench, remove 12 cap screws and lock washers retaining brake inspection covers. Remove the two covers with gaskets (fig. 175). e. Remove the retaining ring that retains brake coolant pump idler gear and bearing on the idler gear shaft (fig. 176). Remove gear and bearing. f. Remove the retaining ring that retains the bearing in the brake coolant idler gear (fig. 176). Remove the bearing from the gear. 129