Komatsu — 12.1 CHECK BEFORE STARTING ENGINE

12. OPERATION CHECK EFFECT OF PARKING BRAKE WARNING Even if the parking brake switch 1 is turned ON, there is danger until parking brake pilot lamp 2 lights up, so keep brake pedal 3 depressed. Measurement conditions Tire inflation pressure: Specified pressure Road surface: Dry paved surface with 1/5 (11°20’) grade Machine: Operating condition Method of measurement 1. Turn the key in starting switch 4 to the ON position and start the engine, set the machine facing straight to the front, then drive the machine up a 1/5 grade with the bucket empty. 2. Depress brake pedal 3 , stop the machine, return directional lever 5 to the neutral position, then stop the engine. 3.

Press parking brake switch 1 to the ON position, release brake pedal 3 slowly, and check that the machine is held in position. 2-42