Fig 2.60 - Kohler KDI 1903 TCR Workshop Manual

2.18 Turbocharger
2.18.1 What to do and what not to do
What to do:

Before assembling the turbocharger, make sure
that the protection caps are fitted on all openings
of the turbo.

Ensure pre-lubrication of the turbocharger.

Periodically check that the joints are sealed
against oil and air.

Use lubricating oil according to the specifications
described in Par. 2.4

Check the engine oil level.

Before switching it off after it has been used,
make the engine run idle, or without a load, for
approximately 1 minute.

Ensure that controls and maintenance intervals of
the engine are observed as specified in
and 2.9 .

Make sure that the engine and equipment are
used correctly so as not to compromise the life of
the turbocharger.
2.18.2 Practical operating rules
Users can help to maximise the duration of their
turbocharger by following the rules described below.
1. Start-up Start the engine at idle speed, or without
a load, for approximately one minute. Oil
operating pressure is reached within a few
seconds and enables the moving parts to warm
up and be lubricated.
Immediately increasing the engine speed upon start-up
means making the turbocharger run at high speed with
suboptimal lubrication, which may compromise the life of
the turbocharger.
2. After maintenance or a new installation
Proceed with pre-lubrication by filling new oil into
the oil supply duct B until filling it completely.
Start the engine at idle speed, or without a load,
for a few minutes in order to ensure that the oil
and bearings system operate satisfactorily.
3. Low temperature air or engine inactivity
If the engine has been inactive for some time, or
the air temperature is very low, start the engine at
idle speed or without a load for a few minutes.
4. Engine shutdown
.
Tab. 2.8
What not to do:

Do not store turbocharges in damp, wet
places if they are not in their original
packaging.

Do not expose the turbocharger to dust
and dirt if it is not in its original
packaging.

Do not lift of hold the turbocharger from
the actuator rod if it is not in its original
packaging.

Do not apply additives to the lubricating
oil and fuel, unless instructed to do so
by Kohler.

Do not increase engine speed, or apply
loads, immediately after start-up.

Do not intervene on the actuator
settings A (Fig. 2.61) .

Do not let the vehicle / engine run at idle
speed for more than 20-30 minutes at a
time.

Fig 2.60

Fig 2.61
79 EN