Contact with high pressure fuel may cause fluid
penetration and burn hazards. High pressure fuel
spray may cause a fire hazard. Failure to follow
these inspection, maintenance and service in-
structions may cause personal injury or death.
NOTICE
Do not bend or strike high pressure lines. Do not in-
stall bent or damaged lines, tubes or hoses. Repair
any loose or damaged fuel and oil lines, tubes and
hoses. Leaks can cause fires. Inspect all lines, tubes
and hoses carefully. Tighten all connections to the
recommended torque.
NOTICE
Do not allow dirt to enter the fuel system. Thoroughly
clean the area around a fuel system component that
will be disconnected. Fit a suitable cover over any
disconnected fuel system components.
Note: High-pressure fuel lines may be installed
between the high-pressure fuel pump and the fuel
injectors. High-pressure fuel lines are constantly
charged with high pressure. Do not check the high-
pressure fuel lines with the engine or the starting
motor in operation. Wait for 10 minutes after the
engine stops before you perform any service or
repair on high-pressure fuel lines. Waiting for 10
minutes will to allow the pressure to be purged.
1. Drain the fuel from the fuel system to a level that is
below the hose that is being replaced.
2. Remove the hose clamps.
3. Disconnect the old hose.
Note: When servicing fuel system, use cap/s or
cover/s as required to protect the system and
maintain fuel system cleanliness.
4. Replace the old hose with a new hose.
5. Install hose clamps which have been inspected or
install new hose clamps. Refer to Specifications,
SENR3130, “Torque Specifications” “Hose
Clamps” for information about selecting and
installing the proper hose clamps.
6. Carefully inspect the engine for any spilled fuel.
Make sure that no fuel remains on or close to the
engine.
Note: Fuel must be added to the fuel system ahead
of the fuel filter.
7. Refill the fuel system. Refer to this Operation and
Maintenance Manual, “Fuel System - Prime” for
information about priming the engine with fuel.
8. Start the engine. Inspect the fuel system for leaks.
Lubrication System
Hot oil and hot components can cause personal
injury. Do not allow hot oil or hot components to
contact the skin.
1. Drain the oil from the lubrication system to a level
that is below the hose that is being replaced.
2. Remove the hose clamps.
3. Disconnect the old hose.
4. Replace the old hose with a new hose.
5. Install hose clamps which have been inspected or
install new hose clamps. Refer to Specifications,
SENR3130, “Torque Specifications” “Hose
Clamps” for information about selecting and
installing the proper hose clamps.
6. Refill the lubrication system. Refer to this
Operation and Maintenance Manual, “Engine Oil
Level - Check” in order to ensure that the
lubrication system is filled with the proper amount
of engine oil.
7. Start the engine. Inspect the lubrication system for
leaks.
Air System
1. Remove the hose clamps.
2. Disconnect the old hose.
3. Replace the old hose with a new hose.
4. Install hose clamps which have been inspected or
install new hose clamps. Refer to Specifications,
SENR3130, “Torque Specifications” “Hose
Clamps” for information about selecting and
installing the proper hose clamps.
Note: The bellows and the V-clamps that are used on
the exhaust bellows should never be reused.
140
SEBU7125-13
Maintenance Section
Hoses and Clamps - Inspect/Replace
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