| 摘要 |
PURPOSE:To dispense with taking a counter measure for a gear slipping off, by keeping operation temporarily in a half-clutch condition at a transmission stage which is shifted on the other counter shaft, and shifting to an original transmission stage on the counter shaft of the gear slipping, again. CONSTITUTION:Whe a transmitting gear for the first speed is slipoped in the first speed condition, a shifting rod 139 goes over a detent ball spring 143 and moves righward to a neutral position. A projection 149 is separated from a limit switch 160 for the first speed and the limit switch 160 is set OFF. Electric supply to a solenoid of a counter shaft selecting clutch solenoid changeover valve 54 is interrupted through a control circuit 170, and a first counter shaft selecting clutch 12 is set OFF. Simultaneously, electric supply to a gear supplying solenoid changeover valve 49 is stopped and the valve is opened. The signals to solenoid changeover valves 68, 67, 84 are signals for the first speed, so that shifting to the first speed is carried out again. |
