3.3 Operation Operation 3.3.9 Precautions for operation Permissible water depth When working in water or on swampy ground, do not let the water come above the bottom of the axle housing. After finishing the operation, wash and check the lubricating points. Axle housing GK032215 If wheel brake does not work If the machine is not stopped by depressing the brake pedal, use the parking brake to stop the machine. NOTE If the parking brake has been used as an emergency brake, contact your KOMATSU distributor to have the parking brake checked for any abnormality.
Precautions when driving up or down slopes Lower the center of gravity when turning When turning on slopes, lower the work equipment to lower the center of gravity before turning. It is dangerous to turn the machine suddenly on slopes. Breaking on downhill slope If the foot brake is used frequently when traveling downhill, the brake will overheat and may be damaged. Use the accelerator pedal to make full use of the braking force of the engine when traveling downhill. Use the right brake pedal for braking. If the brakes are used excessively, the axle oil temperature cau- tion lamp may light up and the alarm buzzer may sound intermit- tently.
For details of the necessary action to take, see "Axle oil temperature caution lamp (3-18)". If engine stops If the engine stops on a slope, apply the parking brake immedi- ately, and lower the work equipment to the ground and stop the machine. Then put the directional lever in neutral position, and start the engine again. 3-90 WA150-5H – VEAM934100