Komatsu — 12.1.2 CHECK BEFORE STARTING

OPERATION CHECK EFFECT OF PARKING BRAKE WARNING Even if the parking brake switch is turned ON, for safety precaution keep the brake pedal depressed until the parking brake pilot lamp lights up. Measurement conditions Tire inflation pressure: Specified pressure Road surface: Dry paved surface with 1/5 (11 Machine: Operating condition Method of measurement 1. Start the engine, set the machine facing straight to the front, then drive the machine up 1/5 grade with the bucket empty. 2. Depress the brake, stop the machine, return the directional lever to the neutral position, then stop the engine. 3.

Press the parking brake switch to the ON position, release the brake pedal slowly, and check that the machine is held in position. CHECK EFFECT OF WHEEL BRAKES Drive the machine at a speed of 20 km/h (12.4 mph) on a dry flat concrete road surface, and check that the stopping distance is less than 5 m (16.4 ft). CHECK SOUND OF HORN AND BACKUP ALARM CHECK FLASHING OF LAMPS, CHECK FOR DIRT AND DAMAGE CHECK ENGINE EXHAUST COLOR AND SOUND CHECK OPERATIONS OF GAUGES CHECK PLAY OF STEERING WHEEL, CHECK OPERATION OF STEERING CHECK DIRECTION OF REAR VIEW MIRROR, CHECK FOR DIRT OR DAMAGE 2-41 WA320-3MC