John Deere 6068 Lawn Mower User Manual


 
Fuels, Lubricants, and Coolant
DX,FUEL10 –19–16DEC05–2/2
If winterfronts are used, they should never totally close
off the grill frontal area. Approximately 25% area in the
center of the grill should remain open at all times. At
no time should the air blockage device be applied
directly to the radiator core.
Radiator Shutters
If equipped with a thermostatically controlled radiator
shutter system, this system should be regulated in
such a way that the shutters are completely open by
the time the coolant reaches 93°C (200°F) to prevent
excessive intake manifold temperatures. Manually
controlled systems are not recommended.
If air-to-air aftercooling is used, the shutters must be
completely open by the time the intake manifold air
temperature reaches the maximum allowable
temperature out of the charge air cooler.
For more information, see your John Deere dealer.
DX,ENOIL4 –19–19DEC05–1/1
Diesel Engine Break-In Oil
New engines are filled at the factory with John Deere
ENGINE BREAK-IN OIL. During the break-in period,
add John Deere ENGINE BREAK-IN OIL as needed to
maintain the specified oil level.
Change the oil and filter after the first 100 hours of
operation of a new or rebuilt engine.
After engine overhaul, fill the engine with John Deere
ENGINE BREAK-IN OIL.
If John Deere ENGINE BREAK-IN OIL is not available,
use a diesel engine oil meeting one of the following
during the first 100 hours of operation:
API Service Classification CE
API Service Classification CD
API Service Classification CC
ACEA Oil Sequence E2
ACEA Oil Sequence E1
After the break-in period, use John Deere PLUS-50
or other diesel engine oil as recommended in this
manual.
IMPORTANT: Do not use PLUS-50 oil or engine
oils meeting any of the following
during the first 100 hours of
operation of a new or rebuilt engine:
API CI-4 PLUS API CF
API CI-4 ACEA E7
API CH-4 ACEA E6
API CG-4 ACEA E5
API CF-4 ACEA E4
API CF-2 ACEA E3
These oils will not allow the engine
to break-in properly.
PLUS-50 is a trademark of Deere & Company.
10-5
080706
PN=33