SEBU8603-01
103
Maintenance Section
Hoses and Clamps - Inspect/Replace
Open the drain valve on the bottom of the fuel tank
in order to drain the water and the sediment. Close
the drain valve.
Check the fuel daily. Allow
fi
ve minutes after the
fuel tank has been
fi
lled before draining water and
sediment from the fuel tank.
Fill the fuel tank after operating the engine in
order to drive out moist air. This will help prevent
condensation. Do not
fi
ll the tank to the top. The
fuel expands as the fuel gets warm. The tank may
over
fl
ow.
Some fuel tanks use supply pipes that allow water
and sediment to settle below the end of the fuel
supply pipe. Some fuel tanks use supply lines that
take fuel directly from the bottom of the tank. If
the engine is equipped with this system, regular
maintenance of the fuel system
fi
lter is important.
Fuel Storage Tanks
Drain the water and the sediment from the fuel
storage tank at the following intervals:
•
Weekly
•
Service intervals
•
Re
fi
ll of the tank
This will help prevent water or sediment from being
pumped from the storage tank into the engine fuel
tank.
If a bulk storage tank has been re
fi
lled or moved
recently, allow adequate time for the sediment to
settle before
fi
lling the engine fuel tank. Internal
baf
fl
es in the bulk storage tank will also help trap
sediment. Filtering fuel that is pumped from the
storage tank helps to ensure the quality of the fuel.
When possible, water separators should be used.
i02518232
Hoses and Clamps -
Inspect/Replace
Contact with high pressure fuel may cause
fl
uid
penetration and burn hazards. High pressure fu-
el spray may cause a
fi
re hazard. Failure to fol-
low these inspection, maintenance and service in-
structions may cause personal injury or death.
If you inspect the engine in operation, always use
the proper inspection procedure in order to avoid
a
fl
uid penetration hazard. Refer to Operation and
Maintenance Manual, “General hazard Information”.
Inspect all hoses for leaks that are caused by the
following conditions:
•
Cracking
•
Softness
•
Loose clamps
Replace hoses that are cracked or soft. Tighten any
loose clamps.
Check for the following conditions:
•
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).