Precautions For Operation - Komatsu D155A-6 Operation & Maintenance Manual

OPERATION
OPERATION

PRECAUTIONS FOR OPERATION

PAY ATTENTION TO GAUGES
If the red range of the power train oil temperature gauge lights up during operation, reduce the load and wait for the
temperature to go down.
PERMISSIBLE WATER DEPTH
When operating in water, always keep top surface of the track
frame above the surface of the water.
Also, be careful that the engine cooling fan will not come in contact
with water. The fan can be damaged.
(A): Permissible water depth line
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 steering, forward-reverse, 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 steering, forward-reverse, gear shift lever to the NEUTRAL position.
When traveling down hills of more than 15°, shift down to 1st speed (R1 or F1).
BRAKING WHEN TRAVELING DOWNHILL
While descending a slope using the engine as a brake, also apply the brakes.
Failure to brake may result in overrunning, causing engine trouble.
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