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122
Maintenance Recommendations
Radiator - Clean
Illustration 100
Typical example
3. Remove gasket (7) and remove the studs (8).
Discard the gasket and the studs.
4. Ensure that the sealing face of the CEM is clean
and free from dirt.
5. Apply bostik pure nickel ant-seize compound to
ends of the new studs (8). Install the coated ends
of the new studs into the CEM, and tighten to a
torque of 5 N·m (44 lb in).
6. Install new gasket (7), ensure that the metal side of
the gasket is to the CEM. Install new DEF injector
(5) to CEM (6).
7. Install washers (9) and apply bostik pure nickel
ant-seize compound to the threads of the studs (8).
8. Install the nuts (4) and tighten the nuts to a torque
of 5 N·m (44 lb in). Retighten the nuts to 5 N·m
(44 lb in). Then, turn the nuts additional 90
degrees.
9. Install electrical connection into position (3) and
install DEF line (2). Install coolant lines (1).
10. Fill cooling system to the correct level. Ensure
that the correct specification of coolant is used.
If available, using the electronic service tool (ET)
perform DEF Dosing System Verification test.
Radiator - Clean
The radiator is not usually supplied by Perkins . The
following text describes a typical cleaning procedure
for the radiator. Refer to the OEM information for
further information on cleaning the radiator.
Note: Adjust the frequency of cleaning according to
the effects of the operating environment.
Inspect the radiator for these items: Damaged fins,
corrosion, dirt, grease, insects, leaves, oil and other
debris. Clean the radiator, if necessary.
Personal injury can result from air pressure.
Personal injury can result without following prop-
er procedure. When using pressure air, wear a
g03418578
protective face shield and protective clothing.
Maximum air pressure at the nozzle must be less
than 205 kPa (30 psi) for cleaning purposes.
Pressurized air is the preferred method for removing
loose debris. Direct the air in the opposite direction to
the fan's air flow. Hold the nozzle approximately 6 mm
(0.25 inch) away from the radiator fins. Slowly move
the air nozzle in a direction that is parallel with the
radiator tube assembly. This will remove debris that is
between the tubes.
Pressurized water may also be used for cleaning. The
maximum water pressure for cleaning purposes must
be less than 275 kPa (40 psi). Use pressurized water
in order to soften mud. Clean the core from both
sides.
Use a degreaser and steam for removal of oil and
grease. Clean both sides of the core. Wash the core
with detergent and hot water. Thoroughly rinse the
core with clean water.
If the radiator is blocked internally, refer to the OEM
Manual for information regarding flushing the cooling
system.
After cleaning the radiator, start the engine. Allow the
engine to operate at low idle speed for three to five
minutes. Accelerate the engine to high idle. This will
help in the removal of debris and the drying of the
core. Slowly reduce the engine speed to low idle and
then stop the engine. Use a light bulb behind the core
in order to inspect the core for cleanliness. Repeat
the cleaning, if necessary.
Inspect the fins for damage. Bent fins may be opened
with a "comb". Inspect these items for good condition:
Welds, mounting brackets, air lines, connections,
clamps and seals. Make repairs, if necessary.
SEBU8732
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