12. OPERATION Braking when travelling downhill To brake the machine during downhill runs, put the travelling and steering lever in the neutral position. This will cause the brake to be auto- matically applied. If shoes slip When travelling uphill, if the shoes slip or it is impossible to travel uphill using the force of the track only, it is possible to use pulling force of the arm to help the machine travel uphill. If engine stops If the engine stops when travelling uphill, lower the bucket to the ground, stop the machine, then start the engine again.
Precautions on slopes If the engine stops when the machine is on a slope, never use the left work equipment control lever to carry out swing operations. The upper structure will swing under its own weight. Do not open or close the door on the cab if the machine is on a slope. This may cause a sudden change in the operating force. Always keep the door locked. PC450-ENG 2-71