·20·c. Notices in driving.1. The readings of the gauges should always be noticed. The readings of oil gauge shouldbe within 196--343 Kpa (2--3.5 Kg/cm ė); that of the water thermometer within 70--900C; that of the ammeter in middle position, or "+" direction of charging. If any of thegauges is out of order, it should be repaired or changed, and never be remained inservice.2. Listen attentively to the engine and the transmission. If some abnormal clashing soundsare heard, the engine should be stopped at once and the troubles be disposed off.3. Notice the color of exhausted gas. It should not be black, and the engine is not allowedto work under the over-loaded condition.4. If slippage or incomplete disengagement in clutching, or no sensitivity in brakingoccurs, the driving needs to be stopped and the tractor to be repaired.5. If the front end of the tractor is cocking (generally occurs in deep paddy fields), the footthrottle should be reduced at first, and then the clutch detached slowly to unload thetractor and prevent it from tilting over.6. In driving, do not put foot on clutch pedal, or control the speed of the tractor with theclutch.E. Braking of the tractor.a. Generally, firstly reduce the foot throttle, step down the clutch pedal, and then graduallystep down the brake pedal according to necessity (see Fig.4-12) to stop the tractor smoothly.b. In case of emergency stopping, both pedals of the clutch and the brake should be steppeddown simultaneously, instead of only stepping down the brake pedal to avoid of the brakingfriction disk heavily worn and the shut-off of the engine,c. In transportation or driving on road, the left and right brake pedals must be joined togetherand locked. When the tractor is stopped, especially on a slope ground , the brake pedalmust be locked by the lock pawl and the ratchet to keep the tractor from skidding.F. Use of Front DriveThe front drive part of the four-wheel-drive tractor, is controlled by the control handle(1)(See- -fig.4--13) ,which is located on the left lower side of the seat. When the control handle(1) is lifted up, power is transmitted to the front drive ; while the control handle is presseddown, power to the front-drive, is cut off. It should be noticed that clutch pedal (2) is stepped