Scania Marine engine. DI13 XPI. Operator’s manual - part 5

 

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Scania Marine engine. DI13 XPI. Operator’s manual - part 5

 

 

Cooling system
1. Open the expansion tank cap.
2. Connect the coolant pump to the filler nipple
in the cylinder block.
3. Connect the pump's 2 cable terminals to the
battery's negative and positive terminal.
Make sure that the filling starts. If the filling
does not start: Change the position of the ca-
ble terminals.
4. Start the engine and run it at idling for
15 minutes.
IMPORTANT!
Filler nipple in the cylinder block.
It is very important that the engine is idling. En-
gine overspeed could damage the coolant pump
shaft seal, which leads to coolant leakage.
5. Switch off the engine and fill with coolant to
the maximum level through the expansion
tank.
Air pockets may still be left in the cooling
system. These will disappear after the engine
has been operated for a period of time.
Therefore, the coolant may need topping up
at a later stage.
Finishing operations
1. Open the bottom valve on the sea water inlet.
2. Start the engine and check that no leakage
occurs.
3. Check the coolant level and top up the cool-
ant via the expansion tank if necessary.
64
Fuel system
Fuel system
Cleanliness requirements
IMPORTANT!
The whole fuel system is very sensitive to dirt
and even very small particles. Foreign particles
in the system can cause serious malfunctions. It
is therefore very important that everything is as
clean as possible when work is carried out on the
fuel system. Before repair work, the engine must
be washed. If possible, a hot water wash should
be used.
It is strictly forbidden to carry out any machining
work or work with compressed air near an open
fuel system.
Be extra careful and always use clean, lint-free
and dust-free clothes and disposable gloves
when working on the fuel system. Scania recom-
mends using Tegera 848 gloves.
Clean tools before they are used and do not use
any worn or chrome-plated tools. Material and
flakes of chrome may come off.
Clean connections and the surrounding area be-
fore removal. When cleaning, cloths or paper
which shed fibres must not be used. Use clean
and lint free cloths, part number 588 879.
Plug or cover the connections during removal.
Also clean the connections before the compo-
nents are fitted. Place removed components on a
thoroughly cleaned, dust-free surface. Scania
recommends using a stainless steel bench top,
part number 2 403 296. Cover the components
with a lint free cloth.
65
Fuel system
Checking the fuel level
Check the fuel level and top up with fuel as nec-
essary.
Note:
If the fuel tank has been run dry or if the engine
has not been used for a long time, bleed the fuel
system. See the section Bleeding the fuel system.
66
Fuel system
Renewing the fuel filter
Environment
Use a suitable container. The fuel collected must
be disposed of as specified in national and inter-
national laws and regulations.
1. Clean the exterior of the fuel filter with a
damp cloth.
2. Unscrew the filter.
3. Apply oil to the gasket on the new filter.
4. Screw the filter into place by hand until it
makes contact.
5. Screw a further half turn by hand.
6. Bleed the fuel system according to the in-
structions in the Bleeding the fuel system
section.
Fuel filter location.
67
Fuel system
Draining and renewing an en-
gine-mounted water separat-
ing prefilter
IMPORTANT!
1
The sensor cable is sensitive. Handle it carefully.
Environment
Use a suitable container. The fuel collected must
be disposed of as specified in national and inter-
national laws and regulations.
2
1. Close the shut-off cock in the fuel pipe and
position a container under the filter.
2. Detach the sensor cables from the contact
housings on the filters.
3. Open the filter drain plugs and allow the flu-
id to run down into the container.
4. Unscrew the filters (3) from the filter head
(4).
5. Discard the old filters and use new ones.
3
4
6. Lubricate the O-rings on the filters with en-
gine oil.
Engine-mounted water separating prefilter.
7. Fill the width of the filters with clean fuel.
1. Filter head.
8. Screw the filters into position until the O-
rings rest against the filter head.
2. Filter.
3. Contact housing.
9. Tighten the filters by hand a further half-
4. Drain plug.
turn.
10. Open the shut-off cock in the fuel pipe and
check that the fuel system is sealed.
11. Connect the sensor cable to the contact hous-
ings on the filters.
12. Bleed the fuel system according to the in-
structions in the Bleeding the fuel system
section.
68
Fuel system
Draining and renewing the
single water separating prefil-
ter (option)
IMPORTANT!
The sensor cable is sensitive. Handle it carefully.
Environment
4
Use a suitable container. The fuel collected must
be disposed of as specified in national and inter-
national laws and regulations.
Before starting work: Close the shut-off cock in
3
the fuel pipe and position a container under the
filter.
1
1. Undo the sensor cable from the connector on
the filter bracket.
2
2. Open the drain tap in the filter cover and let
the fluid run down into the container.
3. Unscrew the filter cover.
1.
Sensor cable.
4. Unscrew the filter from the filter head.
2.
Drain tap.
5. Discard the old filter and use a new filter.
3.
Filter cover.
4.
Filter.
6. Lubricate the O-ring in the filter cover with
engine oil.
7. Screw the filter cover onto the new filter by
hand. Make sure that the drain tap is fully
closed.
8. Lubricate the O-ring on the filter with engine
oil.
9. Fill the width of the filter with clean fuel.
10. Screw the filter into position until the O-ring
rests against the filter head. Tighten the filter
another 1/2 to 3/4 turn by hand.
11. Open the shut-off cock in the fuel pipe and
check that the fuel system is sealed.
12. Screw the sensor cable in the contact housing
onto the filter bracket.
13. Bleed the fuel system according to the in-
structions in the Bleeding the fuel system
section.
69
Fuel system
Draining the commutative wa-
ter separating prefilter (op-
tion)
During operation, the arrow on the rotary control
should point towards the filter being used.
Environment
Use a suitable container. The fuel collected must
be disposed of as specified in national and inter-
national laws and regulations.
1
2
3
4
1. Closed; neither filter is active.
2. Both filters are active.
3. Left-hand filter is active.
4. Right-hand filter is active.
1. Switch off the filter that needs renewing. The
arrow on the rotary control points towards
the filter in operation.
WARNING!
Be careful that the valve does not pass the closed
position when the engine is in operation. A
closed position can result in the engine stopping.
2. Remove the cover from the filter housing.
70
Fuel system
3. Undo the drain plug.
4. Tighten the drain plug when all the water has
emptied.
5. Fill the filter housing with clean fuel.
6. Fit the cover. Tighten the cover screw by
hand.
71
Fuel system
Renewing the commutative
water separating prefilter (op-
tion)
During operation, the arrow on the rotary control
should point towards the filter being used.
Environment
Use a suitable container. The fuel collected must
be disposed of as specified in national and inter-
national laws and regulations.
1. Switch off the filter that needs renewing.
During renewal, the arrow on the rotary con-
trol points towards the filter in operation.
WARNING!
Be careful that the valve does not pass the closed
position when the engine is in operation. A
closed position can result in the engine stopping.
2. Clean the filter housing externally with a
cloth.
3. Remove the cover from the filter housing.
72
Fuel system
4. Remove the filter and fit the new filter.
5. Renew the O-rings in the cover.
6. Lubricate the O-rings with engine oil.
7. Fill the filter housing with clean fuel.
8. Fit the cover. Tighten the cover screw by
hand.
73
Fuel system
Bleeding the fuel system
Bleeding the fuel system using a suc-
tion tool
Tool
Designation
Illustration
Suction tool for fuel sys-
tem
Note:
Scania recommends bleeding the fuel system us-
ing suction tools rather than with a hand pump.
This is a quicker and simpler method, which en-
sures a complete bleeding.
Environment
Use a suitable container. The fuel collected must
be disposed of as specified in national and inter-
national laws and regulations.
1. Open the ventilating valve on the high pres-
sure pump and connect the suction tool to it.
See illustration. Start by wiping off the ven-
tilating valve.
2. Hold the suction tool straight and draw out at
least a full container of fuel.
3. Once the fuel coming out of the hose is free
of air bubbles, then bleeding is complete.
4. Close the ventilating valve on the high pres-
sure pump. Remove the hose and suction
tool.
5. Start the engine and check that no leakage
occurs.
74
Fuel system
Bleeding the fuel system using a
hand pump
Environment
Use a suitable container. The fuel collected must
be disposed of as specified in national and inter-
national laws and regulations.
Tightening torque
Ventilating valves
9 Nm (7 lb-ft)
1. Unscrew the hand pump handle.
2. Attach a clear plastic hose to the ventilating
valve on the prefilter.
3. Place the other end of the plastic hose in a
container that holds at least 5 litres
(1.3 US gallons).
4. Open the ventilating valve.
5. Pump with the hand pump until fuel without
air bubbles comes out.
6. Close the ventilating valve.
7. Connect the plastic hose to the ventilating
valve on the main filter.
8. Open the ventilating valve.
9. Pump with the hand pump until fuel without
air bubbles comes out.
10. Close the ventilating valve.
75
Fuel system
11. Connect the plastic hose to the ventilating
valve on the high pressure pump.
12. Open the ventilating valve.
13. Pump with the hand pump until fuel without
air bubbles comes out of the plastic hose. It
will take around 150 pump strokes.
14. Close the ventilating valve and screw the
hand pump handle downwards.
15. Start the engine. The engine should be easy
to start.
76
Other
Other
2
5
4
Checking the drive belt
IMPORTANT!
Before starting, make a note of how the drive belt
is fitted. Refit the drive belt with the same direc-
3
tion of rotation as it had before removal.
2
1. Check the drive belt for cracks. Renew the
drive belt if deep cracks have formed.
1
Note:
Example of a drive belt.
Small and shallow cracks are normal and form
1. Crankshaft.
after only a few hours of operation. They do not
2. Idler roller.
mean that the drive belt needs to be renewed. If
3. Alternator.
there are many deep cracks, or if parts of the
drive belt have started to come off, the drive belt
4. Belt tensioner.
must then be renewed.
5. Coolant pump.
Example of a minor crack in the drive belt. The drive The drive belt has deep cracks and must be renewed.
belt can be refitted.
77
Other
2. Check drive belt wear. Renew the drive belt
if it is too worn.
The drive belt is starting to become worn, but can be
The belt is worn down to the cord. The drive belt
refitted.
must be renewed.
Checking for leaks
IMPORTANT!
If serious leakage occurs, contact your nearest
workshop.
1. Start the engine.
2. Check for oil, coolant, fuel, air or exhaust
leaks.
3. Tighten or renew leaking connections.
Check the overflow holes which show
whether the O-rings between the cylinder
liners and crankcase are leaking.
4. Check whether the drain hole on the coolant
pump is blocked. If there is a leak, renew the
pump seal or the entire coolant pump.
78
Other
Checking and adjusting the
valve clearance
Special tool
Number
Designation
Illustration
99 309
Turning tool for rotating the flywheel from below.
2 402 509
Turning tool for rotating the flywheel from above
Other tools
Torque wrench, 0-50 Nm
Waterproof felt-tip pen
Feeler gauge 0.45 and 0.70 mm
Flash light
Mirror
WARNING!
Block the starting device or remove a battery ca-
ble. If the engine starts unexpectedly, there is a
serious risk of injury.
IMPORTANT!
The engine must be cold when the work is car-
ried out.
Remember to remove the turning tool from the
flywheel after adjustment.
Note:
Carry out the working without pausing, so that
no step is overlooked.
Carry out a check and adjustment of the valve
clearances one more time after the first 500 hours
of operation. After this, adjustment according to
the regular interval takes place, which is every
2,000 operational hours.
79

 

 

 

 

 

 

 

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