Controls and Operating
3-47
°C 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 1200 - 1500 rev/min. If the transmission oil temper-
ature does not decrease into the normal range within 2 or 3 minutes, the
cause of the overheating should be corrected before the machine is oper-
ated further.
NOTICE: In cold weather, the transmission oil should be warmed up by
running the engine at idle speed with the gear selector in neutral, since
the system will not operate satisfactorily if the oil is too cold.
When the machine is stopped, such as for yielding the right of way to a
loaded machine, the transmission can be left in the selected range and
the machine held stationary with the service brakes.
When the machine is stopped for extended period with the engine left run-
ning, shift the transmission to Neutral so that the parking brake is auto-
matically applied, and to avoid unnecessary heat buildup.
Do not attempt to adjust the steering wheel while the machine is
moving. Loss of control may result. Stop the machine; apply
park brake; then carry out adjustments.
Always select the correct drive direction and gear before releas-
ing the parking brake.
Never allow the machine to coast with the transmission in 'NEU-
TRAL'.
When running down a gradient the engine speed should not be
allowed to drop below 1200 rev/min, at which point lockup
would disengage preventing retarder operation.
In the event of a loss of electric power to the gear shift control,
the transmission will automatically shift to 'NEUTRAL'. If this
occurs, stop the machine using service brakes.The park brakes
will be applied automatically when the speed reduces to below
1m/h. Do not operate the machine until the fault is cor-
rected.Apply park brake switch before leaving the vehicle.
Always select ‘NEUTRAL’ before leaving the operator seat
The retarder will automatically disengage when the oil tempera-
ture reaches 150 °C (302 °F), irrespective of engine speed.
CAUTION
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