3.3 Operation Operation
3-118 WA470-6H – VEAM946100
Changing direction
Changingdirection
WARNING
! When changing direction between FORWARD and
REVERSE, check that the new direction of travel is safe.
There is a blind spot behind the machine, so be particularly
careful when changing direction to travel in reverse.
! Do not switch between FORWARD and REVERSE when
traveling at high speed.
When switching between FORWARD and REVERSE,
depress the brake to reduce the travel speed sufficiently,
then change the direction of travel. Max. speed for changing
direction: 12 km/h.
There is no need to stop the machine even when switching
between FORWARD and REVERSE.
Place directional lever (1) in the desired position.
Position (a): FORWARD
Position N: NEUTRAL
Position (b): REVERSE
Check that the backup alarm sounds when the directional lever
is set to REVERSE. If the backup alarm does not sound, please
contact your KOMATSU distributor for repairs.
REMARK
If the directional lever is operated slowly or is stopped midway
between the forward and reverse directions, “E01 MAINTE-
NANCE“ may be displayed on the character display. In this case,
there is no failure, but try to operate the directional lever so that
the change in direction is completed within 2 seconds.
If an attempt is made to switch the direction between FOR-
WARD and REVERSE while traveling at high speed (when using
3rd or 4th), if the travel speed and engine speed are in ranges
(A) or (B) in the chart, the central warning lamp will light up and
the alarm buzzer will sound.
At the same time, “E00“ is displayed on the top line of the char-
acter display and “OVERRUN PROTECT“ is displayed on the
bottom line.
If the alarm buzzer sounds, depress the brake pedal immedi-
ately to reduce speed, then operate the directional lever to
switch between FORWARD and REVERSE.
(X): Travel speed (km/h)
(Y): Engine speed (rpm)
GK038080
1
GK043144
a
N
b
GK043169
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