Perkins 402D, 403D, 404D Industrial Engine. Manual - part 22
SEBU8311-01
87
Maintenance Section
Walk-Around Inspection
For options regarding the removal, installation, and
replacement, consult your Perkins dealer or your
Perkins distributor. Refer to the Disassembly and
Assembly Manual, “Turbocharger - Remove and
Turbocharger - Install” for further information.
Inspecting
NOTICE
The compressor housing for the turbocharger must
not be removed from the turbocharger for cleaning.
The actuator linkage is connected to the compressor
housing. If the actuator linkage is moved or disturbed
the engine may not comply with emmissions legisla-
tion.
1. Remove the pipe from the turbocharger exhaust
outlet and remove the air intake pipe to the
turbocharger. Visually inspect the piping for the
presence of oil. Clean the interior of the pipes
in order to prevent dirt from entering during
reassembly.
2. Check for the presence of oil. If oil is leaking from
the back side of the compressor wheel, there is a
possibility of a failed turbocharger oil seal.
The presence of oil may be the result of extended
engine operation at low idle. The presence of oil
may also be the result of a restriction of the line
for the intake air (clogged air filters), which causes
the turbocharger to slobber.
3. Inspect the bore of the housing of the turbine
outlet for corrosion.
4. Fasten the air intake pipe and the exhaust outlet
pipe to the turbocharger housing.
i02177973
Walk-Around Inspection
Inspect the Engine for Leaks and
for Loose Connections
A walk-around inspection should only take a few
minutes. When the time is taken to perform these
checks, costly repairs and accidents can be avoided.
For maximum engine service life, make a thorough
inspection of the engine compartment before starting
the engine. Look for items such as oil leaks or coolant
leaks, loose bolts, worn belts, loose connections and
trash buildup. Make repairs, as needed:
•
The guards must be in the correct place. Repair
damaged guards or replace missing guards.
•
Wipe all caps and plugs before the engine is
serviced in order to reduce the chance of system
contamination.
NOTICE
For any type of leak (coolant, lube, or fuel) clean up the
fluid. If leaking is observed, find the source and correct
the leak. If leaking is suspected, check the fluid levels
more often than recommended until the leak is found
or fixed, or until the suspicion of a leak is proved to be
unwarranted.
NOTICE
Accumulated grease and/or oil on an engine is a fire
hazard. Remove the accumulated grease and oil. Re-
fer to this Operation and Maintenance Manual, “En-
gine - Clean” for more information.
•
Ensure that the cooling system hoses are correctly
clamped and that the cooling system hoses are
tight. Check for leaks. Check the condition of all
pipes.
•
Inspect the water pump for coolant leaks.
Note: The water pump seal is lubricated by the
coolant in the cooling system. It is normal for a small
amount of leakage to occur as the engine cools down
and the parts contract.
Excessive coolant leakage may indicate the need
to replace the water pump seal. For the removal of
the water pump and the installation of water pump
and/or seal, refer to the Disassembly and Assembly
Manual, “Water Pump - Remove and Install” for more
information or consult your Perkins dealer or your
Perkins distributor.
•
Inspect the lubrication system for leaks at the front
crankshaft seal, the rear crankshaft seal, the oil
pan, the oil filters and the rocker cover.
•
Inspect the fuel system for leaks. Look for loose
fuel line clamps and/or tie-wraps.
•
Inspect the piping for the air intake system and the
elbows for cracks and for loose clamps. Ensure
that hoses and tubes are not contacting other
hoses, tubes, wiring harnesses, etc.
•
Inspect the alternator belts and any accessory
drive belts for cracks, breaks or other damage.