Operation and maintenance manual
3-34
A dashboard display is provided which indicates gear selected and driving
direction as follows:
Manual Mode - When driving with shift selector in manual range, the bars only
are shown in position 1, and, driving direction and gear selected are indicated in
positions 2 and 3.
Automatic Mode - When driving with shift selector in automatic range, a full
display of bars and arrows are shown in position 1, and, driving direction and
gear selected are indicated in positions 2 and 3.
Under certain conditions the transmission may start to 'hunt' between gears when
in automatic mode. The transmission changes up and down between two gears
at short intervals because there is not sufficient power to sustain driving in the
higher gear, but is sufficient for upshifting from the lower gear. By using the shift
display, it can be established which gears are involved and in these
circumstances the lower gear should be selected using the shift control lever.
Automatic mode should be reselected at the earliest opportunity.
During machine operation, watch for wide deviations from normal readings on the
transmission oil temperature gauge. If the gauge shows the oil temperature rising
above the green zone during normal operation, or above the yellow zone
during retarder operation, the machine must be stopped and inspected for
external oil leakage. If no leaks are found, shift to 'NEUTRAL' and operate the
engine at 1 200 - 1 500 rev/min. If the transmission oil temperature does not
decrease into the green zone within 2 or 3 minutes, the cause of the overheating
should be corrected before the machine is operated further.
1 - Bars show gear ranges and full display (as
'shown) indicates driving in automatic mode.
2 - Display shows actual driving direction.
3 - Display shows actual gear in use.
612