Service Manual

3
© 2001
3.5.1 Winter Operation
● Lube Oil Viscosity
– Select the oil viscosity (SAE grade) ac-
cording to the ambient temperature when
starting the engine, see 4.1.2.
– Increase oil change frequency when
operating below -10 °C, see 6.1.1.
● Diesel Fuel
– Use winter-grade diesel fuel for operation
below 0 °C, see 4.2.2
● Additional Maintenance Work
– Drain the sludge from the fuel tank once a
week. (Unscrew the sludge drain plug)
– If necessary, allow the oil in the oil bath air
cleaner and the engine oil to settle at the
ambient temperature.
– Below -20 °C, after removing the starter
if necessary, smear the ring gear on the
fly wheel via the pinion bore from time to
time with cold-resistant grease (e.g. Bosch
FT 1 V 31 grease).
● Cold Start Assistance
At temperatures near or below freezing
point, use sheathed glow plugs if neces-
sary, see 3.2.1. This not only lowers the
starting limit temperature, but provides easier
starting at temperatures normally not requir-
ing a starting aid.
3.5 Operating Conditions Engine Operation
● Battery
– Efficient cold starting requires the battery
to be well-charged, see 6.7.1.
– The starting limit temperatures can be low-
ered by 4-5 °C by heating the battery up to
about +20 °C. (To do so, remove the battery
and store in a warm place).
© 26 248 2