Operation and maintenance manual

SEBU8601-01 117
Maintenance Section
Hoses and Clamps - Inspect/Replace
Open the drain v
alve 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 filled before draining water and
sediment fro
m the fuel tank.
Fill the fuel tank after operating the engine in
order to dri
ve out moist air. This will help prevent
condensation. Do not fill the tank to the top. The
fuel expands as the fuel gets warm. The tank may
overflow .
Some fuel tanks use supply pipes that allow water
and sedime
nt 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 filter is important.
Fuel Storage Tanks
Drain the
water and the sediment from the fuel
storage tank at the following intervals:
•
Weekly
•
Service intervals
•
Refill of the tank
This wi
ll help prevent water or sediment from being
pumped from the storage tank into the engine fuel
tank.
If a bulk storage tank has been refilled or moved
recently, allow adequate time for the sediment to
settl
ebeforefilling the engine fuel tank. Internal
baffles in the bulk storage tank will also help trap
sediment. Filtering fuel that is pumped from the
stor
age tank helps to ensure the quality of the fuel.
When possible, water separators should be used.
i02349879
Hos
es and Cl amp s -
Inspect/Replace
Contact with high pressure fuel may cause fluid
penetration and burn hazards . High pressure fu-
el spray may cause a fire hazard. Failure to fol-
low these inspection, maintenance a nd service in-
structions may cause personal injury or death.
If you inspect t
he engine in operation, always use
the proper inspection procedure in order to avoid
a fluid penetration hazard. Refer to Operation and
Maintenance M
anual, “General hazard Information”.
Inspect all hoses for leaks that are caused by the
following co
nditions:
•
Cracking
•
Softness
•
Loose clamp
s
Replace hoses that are cracked or soft. Tighten any
loose clam
ps.
Check for the following conditions:
•
End fittings that are damaged or leaking
•
Outer cov
ering that is chafed or cut
•
Exposedwirethatisusedforreinforcement
•
Outer covering that is ballooning locally
•
Flexibl
e 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
torqu
e 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 fitting material
•
Anticipated expansion and contraction of the hose
•
Ant
icipated expansion and contraction of the
fittings
Replace the Hoses and the C lam ps
Re
fer to the OEM information for further information
on removing and replacing fuel hoses (if equipped).