Operation and maintenance manual
3-35
Note: 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 temporarily stopped, such as for yielding the right-of-way to a loaded
machine, the transmission can be left in gear and the machine held stationary
with the service brakes.
When stopped for a more extended period with the engine left running, shift to
'NEUTRAL' to avoid unnecessary heat buildup, and apply the parking brake.
WARNINGS
Always select the correct drive direction and gear before releasing the
parking brake.
Never allow the machine to coast with the transmission in 'NEUTRAL'.
When running down a gradient the engine speed should not be allowed
to drop below 1 200 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 the service brakes and apply the parking brake. Do
not operate until the fault has been repaired.
Always select 'NEUTRAL' and apply the parking brake before
leaving the operators seat.
The retarder will automatically disengage when the oil temperature
reaches 150° C (302° F), irrespective of engine speed .