Operating instructions
86 Starting the engine
Cold weather operation
During the cold season or at temperatures below 0°C (32°F)
note the following points:
– Make sure the freezing point of the coolant corresponds to the
weather conditions, according to Coolant with anti-freeze and
corrosion protection page 174.
– Use recommended lubricating oil for winter use. See Recom-
mended lubricants page 217.
– Fill the fuel tank after work has finished for the day. This will
counteract condensation water in the fuel tank.
– When the engine has started, run it at low speed and light
loading until the oil in the engine, transmission, hydraulic sys-
tem and final drive have warmed up and become more fluid to
provide proper lubrication.
NOTE! When it is very cold (below – 15°C = 5°F) the machine
must not be put to hard work immediately after the engine is
started. Allow the engine to run just above idle at 1000 to 1100
rpm with the transmission in neutral for 10 to 15 minutes.
NOTE! To start with booster cables, see Starting with jumper
cables: page 182.
Lubricant requirements for transmission and
hydraulic systems
When operating in temperatures below –10° C (14° F), store the
grader inside a heated facility or use immersion heaters in the
transmission case and the hydraulic tank. You can use the recom-
mended oils provided the following conditions are met (refer to
Recommended lubricants page 217):
a) Before start up, the oil is preheated to a temperature above
the minimum value for the indicated oil and viscosity range.
b) The operating temperature stays above the minimum value in
the applicable range.
Failure to comply with these requirements may result in a malfunc-
tion or reduced life of the transmission or hydraulic components.
Cold weather start-up – Hydraulic system
If oil in the hydraulic circuit is cold, hydraulic functions may move
slowly. Do not attempt grader operations until the hydraulic oil is
warmed up. If you do not follow the proper warm up procedure, hy-
draulic pump damage may result.
a) Run the engine at approximately 1000 rpm for five minutes.
Do not put load on the hydraulic system.
b) Cycle all hydraulic cylinders through their working range sev-
eral times until the hydraulic functions operate normally.
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