Komatsu D155A-6 Operation & Maintenance Manual page 188

OPERATION
OPERATION
TURNING WHILE DESCENDING A SLOPE
TURNING GRADUALLY TO LEFT WHILE TRAVELING FORWARD
If the joystick (1) is pushed forward and moved partially to the left
(L), the machine turns gradually to the left. (Does not become
cross steering)
REMARK
When making gradual turns to the right, push the joystick (1)
forward, and move it partially to the right. (Does not become
reverse steering)
Do the same when traveling in reverse.
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