AT-72 A340E(Others) AUTOMATIC TRANSMISSION - FRONT PLANETARY GEAR FRONT PLANETARY GEAR COMPONENTS AT05T-03 Front Planetary Ring Gear Race Bearing Bearing Race Race Race Race Front Planetary Gear AT8381 AT05U-04 FRONT PLANETARY GEAR INSPECTION 1. CHECK FRONT PLANETARY RING GEAR BUSHING Using a dial indicator, measure the inside diameter of the planetary ring gear bushing. Maximum inside diameter: 24.08 mm (0.9480 in.) If the inside diameter is greater than the maximum, re- place the planetary ring gear. AT8187 2. MEASURE PLANETARY PINION GEAR THRUST CLEARANCE Using a feeler gauge, measure the planetary pinion gear thrust clearance. Standard clearance: 0.20-0.60 mm (0.0079-0.0236 in.) Maximum clearance: 1.00 mm (0.0394 in.) If the clearance is greater than the maximum, replace the planetary gear assembly. AT4456