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OVERALL SYSTEM AT-169 [RE4R01A] D E F G H I J K L M A B AT FUNCTION OF CLUTCH AND BRAKE CLUTCH AND BAND CHART ● *1: Operates when overdrive control switch is being set in OFF position. ● *2: Oil pressure is applied to both 2nd “apply” side and 3rd “release” side of band servo piston. However, brake band does not con- ● *3: Oil pressure is applied to 4th “apply” side in condition *2 above, and brake band contracts. ● *4: A/T will not shift to 4th when overdrive control switch is set in OFF position. ● *5: Operates when overdrive control switch is OFF. ●
: Operates. ● A: Operates when throttle opening is less than 3/16, activating engine brake. ● B: Operates during “progressive” acceleration. ● C: Operates but does not affect power transmission. ● D: Operates when throttle opening is less than 3/16, but does not affect engine brake. Clutch and brake components Abbr. Function Reverse clutch 6 R/C To transmit input power to front sun gear 9 . High clutch 7 H/C To transmit input power to front planetary carrier 11 . Forward clutch 16 F/C To connect front planetary carrier 11 with forward one-way clutch Overrun clutch 18 O/C To connect front planetary carrier 11 with rear internal gear 14 . Brake band 5 B/B To lock front sun gear 9 . Forward one-way clutch 17 F/O.C When forward clutch 16 is engaged, to stop rear internal gear 14 Low one-way clutch 19 L/O.C To stop front planetary carrier 11 from rotating in opposite direc- Low & reverse brake 20 L & R/B To lock front planetary carrier 11 . Shift posi- tion Reverse clutch High clutch For- ward clutch Over- run clutch Band servo For- ward one- way clutch Low one- way clutch Low & e brake Lock-up Remarks 2nd apply 3rd releas e 4th apply P PARK POSITION R REVERSE N NEUTRAL POSITION D*4 1st *1D B B Automatic shift 1 ⇔ 2 ⇔ 3 ⇔ 4 2nd *1A B 3rd *1A *2C C B *5 4th C *3C C 2 1st D B B Automatic shift 1 ⇔ 2 2nd A B 1 1st B B Locks (held sta- tionary) in 1 ⇐ 2 2nd B |