This document is printed from SPI². Not for RESALE
SEBU8311-02
87
Maintenance Section
Radiator - Clean
•
End
fi
ttings that are damaged or leaking
•
Outer covering that is chafed or cut
•
Exposed wire that is used for reinforcement
•
Outer covering that is ballooning locally
•
Flexible part of the hose that is kinked or crushed
•
Armoring that is embedded in the outer covering
A constant torque hose clamp can be used in place
of any standard hose clamp. Ensure that the constant
torque hose clamp is the same size as the standard
clamp.
Due to extreme temperature changes, the hose will
harden. Hardening of the hoses will cause hose
clamps to loosen. This can result in leaks. A constant
torque hose clamp will help to prevent loose hose
clamps.
Each installation application can be different. The
differences depend on the following factors:
•
Type of hose
•
Type of
fi
tting material
•
Anticipated expansion and contraction of the hose
•
Anticipated expansion and contraction of the
fi
ttings
Replace the Hoses and the Clamps
Refer to the OEM information for further information
on removing and replacing fuel hoses (if equipped).
The coolant system and the hoses for the coolant
system are not usually supplied by Perkins. The
following text describes a typical method of replacing
coolant hoses. Refer to the OEM information for
further information on the coolant system and the
hoses for the coolant system.
Pressurized System: Hot coolant can cause seri-
ous burns. To open the cooling system
fi
ller cap,
stop the engine and wait until the cooling system
components are cool. Loosen the cooling system
pressure cap slowly in order to relieve the pres-
sure.
1.
Stop the engine. Allow the engine to cool.
2.
Loosen the cooling system
fi
ller cap slowly in
order to relieve any pressure. Remove the cooling
system
fi
ller cap.
Note:
Drain the coolant into a suitable, clean
container. The coolant can be reused.
3.
Drain the coolant from the cooling system to a
level that is below the hose that is being replaced.
4.
Remove the hose clamps.
5.
Disconnect the old hose.
6.
Replace the old hose with a new hose.
7.
Install the hose clamps with a torque wrench.
Note:
For the correct coolant, see this Operation and
Maintenance Manual, “Fluid Recommendations”.
8.
Re
fi
ll the cooling system. Refer to the OEM
information for further information on re
fi
lling the
cooling system.
9.
Clean the cooling system
fi
ller cap. Inspect the
cooling system
fi
ller cap's seals. Replace the
cooling system
fi
ller cap if the seals are damaged.
Install the cooling system
fi
ller cap.
10.
Start the engine. Inspect the cooling system for
leaks.
i02335774
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.