Komatsu D475A-5E0 Operation & Maintenance Manual page 192

Bulldozer
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OPERATION
OPERATION
PRECAUTIONS WHEN TRAVELING FOR A LONG TIME
Avoid operating the machine at high speed for a long time,
otherwise the temperature of hydraulic oil sharply rises, and that
can cause oil leakage from the track rollers or final drive and lower
durability.
If there is no way to avoid operating the machine at high speed for
a long time, stop the machine every one hour for 30 minutes and
let the track rollers and final drive cool off before starting up the
machine again.
PRECAUTIONS WHEN TRAVELING UP OR DOWN HILLS
METHOD OF USING DECELERATOR PEDAL
When stepping on the decelerator pedal while going uphill, climbing ability will be reduced and the machine will stop.
Furthermore, the engine may stall.
USE ENGINE AS BRAKE
When going downhill, move joystick (steering, directional and gear shift lever) into low speed to run engine at slow
speed and travel down slope using the engine as a brake.
Do not move the joystick to NEUTRAL position.
When traveling down hills of more than 15 deg., shift down to 1st speed (R1 or F1).
BRAKING WHEN TRAVELING DOWNHILL
While descending a slope by using the engine as a brake, also apply the brakes.
Failure to brake may result in overrunning, causing engine trouble.
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