AT-1 14 A340E(Others) AUTOMATIC TRANSMISSION - COMPONENT PARTS INSTALLATION 16. INSTALL SECOND COAST BRAKE COVER, PISTON ASSEMBLY AND SPRING (a) Coat the 2 new O-rings with ATF and install them to the cover. (b) Install the spring, piston assembly and cover to the case. AT5086 SST (c) Using SST, install the snap ring. SST 09350-30020 (09350-07060) AT5127 17. CHECK PISTON ROD STROKE OF SECOND COAST BRAKE (a) Place a mark on the second coast brake piston rod. Mark AT5216 SST (b) Using SST, measure the stroke while applying and releas- ing compressed air (392-785 kPa, 4-8 kgf/cm2, 57-114 psi). SST 09240-00020 Piston rod stroke: 1.5 - 3.0 mm (0.059 - 0.118 in.) If the stroke is more than specified, replace the piston rod. Piston rod length: 71.4 mm (2.811 in.) 72.9 mm (2.870 in.) If it is still more than standard value, replace the brake band with a new one. AT5217