Operation 3.3 Operation
WA470-6H – VEAM946100 3-137
3.3.10 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.
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, con-
tact 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 (3-20)".
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.
GK032215
Axle housing
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