Clutch adjustment method and apparatus thereof

A clutch adjustment apparatus adapted for use with a tracklaying vehicle wherein right and left drive wheels are each provided with a clutch and a brake and wherein clutch hydraulic pressure and brake hydraulic pressure are controlled by operation of an electrical power-assisted steering lever to allow a right or left turn of the vehicle,

• the apparatus comprising:
• (a) adjustment mode setting means for setting an adjustment mode for adjusting the clutch hydraulic pressure to a proper value, while both of the brakes being in their actuated state;
• (b) clutch hydraulic pressure changing means for controlling the clutch hydraulic pressure to gradually change when the adjustment mode is set by the adjustment mode setting means;
• (c) clutch sliding start detecting means for detecting a start of sliding of a clutch;
• (d) clutch pressure command value detecting means for detecting a clutch pressure command value at the start of sliding of the clutch if sliding of the clutch is detected by the clutch sliding start detecting means while the clutch hydraulic pressure being gradually changed by the clutch hydraulic pressure changing means;
• and
• (e) clutch hydraulic pressure correcting means for correcting the clutch hydraulic pressure to a proper value, based on the clutch pressure command value detected by the clutch pressure command value detecting means.