Komatsu PC1250-11, Original Instructions Manual

Page: 136 / 452

1.
Operate the operating portion (g) of the lock lever to set it
securely to LOCK position (L).
2.
On the standard screen, press the switch F6.
3.
Select “Fan Reverse Mode” (4) on “Machine Setting” menu
screen (b), then press the switch F6.
4.
When switch F6 is pressed in the screen shown in the fig-
ure, the fan rotation direction is reversed.
(If switch F5 is pressed, the screen returns to the previous
screen.)
5.
When the screen shown in the figure is displayed, the engine speed is set to low idle automatically and the
fan starts rotating in reverse in approximately 15 seconds. Approximately 4 seconds after, the engine speed
returns to the level before reverse rotation.
EXPLANATION OF COMPONENTS OPERATION
3-70