Transmission Operation At Low Ambient Temperatures - New Holland Boomer 47 Operator's Manual

Transmission operation at low ambient temperatures

Warm up period
The tractor hydraulic oil also serves as the tractor
transmission fluid. During cold weather operation, the
hydraulic oil viscosity increases.
viscosity restricts the oil's ability to flow and lubricate in
the transmission and hydraulic circuits. The cold oil can
result in abnormal noises and slower operation times due
to the increased oil viscosity.
NOTE: A warm up time at 50% rated engine speed is rec-
ommended to assure proper vehicle functionality, trans-
mission lubrication and operation.
NOTE: Do not operate the tractor under full load condition
until the hydraulic oil is sufficiently warmed up.
4 - OPERATING INSTRUCTIONS
This increase in oil
4-30
WARNING
Set the park brake during warm up operation. Set all
shift levers to the "NEUTRAL" positions and place the
PTO clutch lever in the "OFF" position during warm
up operation. Failure to comply could result in death
or serious injury.
Ambient Temperature
Above 0 °C (32 °F)
0 - -10 °C (32 - 14 °F)
-10 - -20 °C (14 - -4 °F)
Below -20 °C (-4 °F)
Recommended Warm-Up
Time
Minimum of 5 minutes
5 to 10 minutes
10 to 15 minutes
More than 15 minutes
M1478