Scania D9, DI9. Marine engine. Instruction — part 1
IMPORTANT INFORMATION
When working on the engine, e.g. when adjusting the belts, changing oil or adjusting the clutch it is
important that the engine does not start. The engine may be damaged but above all there is -
SERIOUS RISK OF INJURY.
For this reason, always secure the starting device or disconnect a battery cable
before working on the engine.
This is especially important if the engine has a remote starter or automatic starting.
This warning symbol and text is reproduced beside those maintenance points where it is
especially important to consider the risk of injury.
START-UP REPORT - WARRANTY
When the start-up report has been filled in and sent to Scania there is a 1 year warranty starting from
the start-up date. Also enter the below information since this will facilitate contacts with e.g. service
workshops.
Operator’s Instruction
D9 DI9
Marine engine
opm96-9m en
1 588 295
2001-05:1
Engine number
Start-up date
User’s name and address
Signature
Engine type
Variant
Engine type and variant are indicated on the engine type plate
!
Industrial & Marine Engines
2
FOREWORD
This operator’s instruction describes the operation and maintenance of the Scania
D9 and DI9 marine engines. The instructions apply to engines in program 96,
starting with engine number
5 119 902.
The engines are of direct-injection, liquid-cooled, four-stroke, 6-cylinder in
line diesel type. The engines are available with or without charge air cooler,
see page 10.
The engines may have two different cooling systems, a heat exchanger which
is cooled by sea water or keel cooling which has cooling coils on the keel in
which the engine coolant is cooled.
Common areas of usage include propulsion engines in boats like patrol boats
and fishing boats, larger pleasure craft or propulsion engines or aggregate
engines on board ships.
The engines have different output and speed settings and can be classified in
different classification socities (classed engines must be used in certain
marine installations).
The normal output setting of the engine (performance code) is indicated on
the type plate, see page 10.
Note
Only standard components are described in the operator’s man-
ual. Regarding special equipment, refer to the instructions of the
relevant manufacturer.
In order to obtain the best value and service life from your engine, there are a
few points to bear in mind:
- Read the instruction before starting to use the engine. You will find new
information in this Operator’s Instruction even if you have previous
experience of Scania engines.
- Follow the maintenance instructions. Proper maintenance is essential to
keep the engine operating correctly and to increase engine life.
- Pay special attention to the safety information beginning on page 6.
- Get to know your engine so that you know what it can do and how it
works.
- Whenever necessary, always contact an authorised Scania workshop.
They have special tools, genuine Scania parts and trained staff with
practical experience of Scania engines.
Note:
Always use genuine Scania parts in service and repair to keep the
engine operating correctly.
The information in this instruction was correct at the time of going to press.
However, we reserve the right to make changes at any time, without prior
notice.
Scania CV AB
Industrial and Marine Engines
S-151 87 Södertälje
During the warranty period,
only use genuine Scania parts in
service and repair for the
warranty to be valid.
Scania Industrial & Marine Engines
3
FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ENVIRONMENTAL RESPONSIBILITY . . . . . .4
CERTIFIED ENGINES . . . . . . . . . . . . . . . . . . . .5
SAFETY DETAILS . . . . . . . . . . . . . . . . . . . . . . .6
Safety precautions for operation . . . . . . . . . . . .7
Safety precautions for handling materials . . . . .8
Safety precautions for care and maintenance . .8
TYPE DESIGNATIONS . . . . . . . . . . . . . . . 10
STARTING AND RUNNING . . . . . . . . . . . 12
AT FIRST START . . . . . . . . . . . . . . . . . . . . . . .12
CHECKS BEFORE RUNNING . . . . . . . . . . . . .13
STARTING THE ENGINE . . . . . . . . . . . . . . . .13
At temperatures below 0 °C: . . . . . . . . . . . . . .14
RUNNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Engine speed . . . . . . . . . . . . . . . . . . . . . . . . . .15
Coolant temperature . . . . . . . . . . . . . . . . . . . .15
Oil pressure . . . . . . . . . . . . . . . . . . . . . . . . . . .16
STOPPING THE ENGINE . . . . . . . . . . . . . . . . .16
Emergency stop . . . . . . . . . . . . . . . . . . . . . . . . 16
Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
CHECKS AFTER RUNNING . . . . . . . . . . . . . .17
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . 18
ENGINES WITH FEW HOURS
OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . 18
MAINTENANCE SCHEDULE . . . . . . . . . . . . .19
LUBRICATION OIL SYSTEM . . . . . . . . . 20
OIL GRADE . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Oil analysis . . . . . . . . . . . . . . . . . . . . . . . . . . .20
CLEANING THE OIL CLEANER . . . . . . . . . . 22
CHANGING THE TURBO FILTER . . . . . . . .24
COOLING SYSTEM . . . . . . . . . . . . . . . . . . 24
CHECKING COOLANT LEVEL . . . . . . . . . . .24
CHECKING CORROSION BARS . . . . . . . . . . . 25
CHECKING THE SEAWATER PUMP
IMPELLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
CHECKING THE COOLANT . . . . . . . . . . . . . .26
Checking the glycol content . . . . . . . . . . . . . .26
Checking protection against corrosion . . . . . . 28
Changing the coolant . . . . . . . . . . . . . . . . . .28
CLEANING THE COOLING SYSTEM . . . . . . 29
Internal cleaning . . . . . . . . . . . . . . . . . . . . . . .31
AIR CLEANER . . . . . . . . . . . . . . . . . . . . . . . 32
READING THE
LOW PRESSURE INDICATOR . . . . . . . . . . . .32
CLEANING THE AIR CLEANER
COARSE CLEANER . . . . . . . . . . . . . . . . . . . . .32
CLEANING OR CHANGING THE
FILTER ELEMENT . . . . . . . . . . . . . . . . . . . . . .32
CHANGING SAFETY CARTRIDGE . . . . . . . .34
FUEL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 35
CHECKING FUEL LEVEL . . . . . . . . . . . . . . . .35
CHANGING THE FUEL FILTER . . . . . . . . . . .35
CHECKING THE INJECTORS . . . . . . . . . . . . .36
ELECTRICAL SYSTEM . . . . . . . . . . . . . . . 37
CHECKING THE
ELECTROLYTE LEVEL IN BATTERIES . . . .37
CHECKING THE STATE OF CHARGE
IN BATTERIES . . . . . . . . . . . . . . . . . . . . . . . . .37
CLEANING BATTERIES . . . . . . . . . . . . . . . . .37
CHECKING THE COOLANT
LEVEL MONITOR . . . . . . . . . . . . . . . . . . . . . .38
CHECKING THE TEMPERATURE
MONITOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
CHECKING TEMPERATURE SENSOR . . . . . 39
CHECKING THE OIL PRESSURE
SENSOR/MONITOR . . . . . . . . . . . . . . . . . . . . .40
CHECKING THE STOP FEATURE . . . . . . . . .40
RENEWING THE BATTERY . . . . . . . . . . 42
MISCELLANEOUS . . . . . . . . . . . . . . . . . . . 42
CHECKING THE DRIVE BELT . . . . . . . . . . . .42
CHECKING FOR LEAKAGE, RECTIFY AS
NECESSARY . . . . . . . . . . . . . . . . . . . . . . . . . . .43
CHECK/ ADJUST
VALVE CLEARANCE . . . . . . . . . . . . . . . . . . . 44
CHANGING (
CRANKCASE VENTILATION VALVE . . . . .45
LONG-TERM STORAGE . . . . . . . . . . . . . . 46
Preservative fuel . . . . . . . . . . . . . . . . . . . . . . . 46
Preservative oil . . . . . . . . . . . . . . . . . . . . . . . .47
Preparations for storage . . . . . . . . . . . . . . . . .47
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Taking out of storage . . . . . . . . . . . . . . . . . . . 48
TECHNICAL DATA . . . . . . . . . . . . . . . . . . 49
FUEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4
ENVIRONMENTAL RESPONSIBILITY
Scania has always been at the forefront in the development and production of
environmentally safe engines.
We have made great progress in reducing harmful exhaust emissions to be
able to meet the stringent emission standards that are mandatory for almost
all markets.
We have done this without compromising the high quality of Scania
industrial and marine engines in terms of performance and cost effective
operation.
To maintain these superior properties throughout the life of the engine it is
important that the operator/owner follows the instructions of this instruction as
regards operation, maintenance and choice of fuel and lubricants.
To further contribute to protecting the environment in service, maintenance
and repair, ensure that harmful waste (oil, fuel, coolant, filters, batteries etc.)
is disposed of and destroyed according to applicable local regulations.
This operator’s instruction contains highlighted text urging you to protect the
environment in different service and maintenance operations.
Refer to example
Always use suitable containers
to avoid spillage when bleeding
systems or renewing
components.
CERTIFIED ENGINES
An emission certified engine has been approved according to a specific
certification standard. The certified engines delivered by Scania meet the
most compelling emission standards in the European (EU) and non-European
(USA) markets.
Scania guarantees that all engines of a certified engine type that are delivered,
correspond to the engine approved for certification.
The engine is fitted with a certification plate, stating according to which
certification rules (standard) the engine has been approved. Refer to page 10.
The following is required for the engine to meet the emission standards after
being commissioned:
- Service and maintenance must be performed according to this
Operator’s Instruction.
- Only genuine Scania parts must be used.
- Service work on the injection equipment must be performed by an
authorized Scania workshop.
- The engine must not be modified with equipment not approved by
Scania.
- Seals and setting data may only be broken/modified after approval by
Scania, Södertälje. Changes should only be made by qualified
personnel.
- Changes affecting the exhaust system and intake system must be
approved by Scania.
Otherwise, follow the instructions in this instruction for operation, care and
maintenance of the engine. Also observe the safety precautions described in
the following four pages.
Important!
If service and maintenance are not performed as stated
above, Scania cannot guarantee that the engine corresponds
to the certified configuration and will not assume liability for
any damage occurring.
6
SAFETY DETAILS
General
This Operator’s Instruction contains safety information that must be observed in
order to avoid personal injuries and damage to the product or property. Refer
to page 1.
The text boxes to the right on the pages provide information that is important
for the proper operation of the engine and to avoid damage to the engine.
Failure to follow these instructions may void the warranty.
Refer to example.
Corresponding texts may also appear in the text column, headed
Caution!
or
Important
The warning text in text boxes to the right on the pages provided with a
warning triangle and headed WARNING is extremely important and warns
of serious defects to the engine or improper handling that may lead to
personal injury.
Refer to example
The safety precautions that must be observed in the operation and
maintenance of Scania engines are compiled on the following three pages.
The corresponding text is also often stated next to the maintenance step
concerned, shown with different degrees of significance as described above.
All items are marked with a
!
to highlight the importance of reading each
item in the section.
A general safety rule is that no smoking is allowed:
•
Near the engine and the engine bay
•
When refuelling and near the filling station
•
When work is performed on the fuel system
•
Near flammable or explosive materials (fuel, oils, batteries, chemicals
etc.)
Immobilise the starting device
when working on the engine.
If the engine starts out of
control, there is a
SERIOUS RISK
OF INJURY.
Only use Scania genuine fuel
filter.
Safety precautions for operation
Daily inspection
Always perform visual inspection of the engine
and engine bay before the engine is started and
when the engine has been stopped after oper-
ation.
This will make it easy to detect any leakage of
fuel, oil or coolant or any other abnormal condi-
tion that may require remedial action.
Refuelling
When refuelling, there is a risk of fire and explo-
sion. The engine must be stopped and smoking
is not allowed.
Do not overfill the tank, since the fuel may ex-
pand, and close the fuel filler cap properly.
Only use fuel recommended in the service
literature. Fuel of an incorrect grade may cause
malfunctions or stoppage by interfering with the
operation of the fuel injection pump and the in-
jectors.
This could cause engine damage and possibly
personal injury.
Harmful gases
Only start the engine in a properly ventilated ar-
ea. The exhaust emissions contain carbon
monoxide and nitrogen oxides that are toxic.
When operating the engine in an enclosed ar-
ea, an effective extraction device for exhaust
gases and crankcase gases must be used.
Starter lock
If the control panel is not fitted with a key
switch, the engine bay should be fitted with a
lock to prevent unauthorized starting of the en-
gine.
Alternatively, a lockable main switch or battery
master switch may be used.
Starting spray
Never use starting spray or similar as a starting
aid. An explosion may occur in the intake pipe,
which could cause personal injury.
Operation
The engine should not be operated in environ-
ments with surrounding explosive materials
since electrical or mechanical components of
the engine may emit sparks.
It is always a safety hazard to be near an en-
gine that is running. Body parts or clothing, or a
dropped tool may get stuck in rotating parts,
such as the fan, causing bodily injury.
Always cover rotating parts and hot surfaces as
much as possible to ensure personal safety.
8
Safety precautions for handling
materials
Fuel and lubrication oil
All fuels and lubricants as well as many chemi-
cals are flammable. Always follow the instruc-
tions stated on the container.
All work on the fuel system must be performed
when the engine is cold. Fuel leakage and spill-
age on hot surfaces may cause fire.
Store drenched rags and other flammable ma-
terials in a safe way to avoid spontaneous com-
bustion.
Batteries
Batteries, particularly when being recharged,
emit highly flammable fumes that can explode.
Do not smoke or let open flame or sparks come
near the batteries or the battery compartment.
Incorrect connection of a battery cable or jump
start cable may cause a spark, which in tun may
cause the battery to explode.
Chemicals
Most chemicals, such as glycol, corrosion in-
hibitors, preservation oils, degreasers etc. are
hazardous. Always follow the safety precau-
tions stated on the container.
Some chemicals, e.g. preservative oil, are
flammable.
Always store chemicals and other hazardous
materials in approved and distinctly marked
containers and out of reach of unauthorized
persons. Always dispose of superfluous or
used chemicals through an authorized waste
disposal contractor.
Safety precautions for care and
maintenance
Stop the engine
Always stop the engine before any mainte-
nance and service work unless otherwise
stated.
Prevent unauthorized starting by removing the
starter key and turning off the power by the
main switch or the battery disconnect switch,
locking it in the off position. Also attach a warn-
ing tag, stating that work on the engine is in
progress, at a suitable location.
It is always a safety hazard to work on an en-
gine that is running. Parts of your body or cloth-
ing, or a dropped tool may get stuck in rotating
parts, causing bodily injury.
Hot surfaces and fluids
A hot engine always presents a risk of scalding.
Always take care not to touch the exhaust
manifold, turbocharger, oil pan, hot coolant and
oil in pipes and hoses.
Lifting the engine
Use the engine lifting eyes when lifting the
engine. First check that the lifting equipment is
in proper condition and has sufficient lift capac-
ity rating.
Auxiliary equipment fitted to the engine may
cause the centre of gravity to be displaced.
Thus, additional lift devices may be required in
order to provide proper balance and a safe lift.
Never work below a suspended engine!
Batteries
Batteries contain a highly corrosive electrolyte
(sulphuric acid). Always take care to protect
your eyes, skin and clothing when charging and
handling batteries. Wear protective gloves and
goggles.
If electrolyte splashes on the skin, wash the
affected part of the body with soap and plenty
of water. If electrolyte splashes into the eyes,
rinse eyes immediately with plenty of water and
seek medical attention.
Dispose of used batteries through an author-
ized waste disposal contractor.
Electrical system
Before work is performed on the electrical sys-
tem, turn off the power by the main switch or the
battery disconnect switch.
Also disconnect any external power supply to
auxiliary equipment on the engine.
Arc Welding
Before welding near or on the engine, remove
the battery and alternator cables. Also remove
the control unit connector.
Connect the weld clamp to the component to be
welded, close to the weld location. Never con-
nect it to the engine or in such a way that the
current can pass through a bearing.
After the welding is completed, connect the ca-
bles to the alternator and the control unit before
connecting the batteries.
Lubrication system
Hot oil may cause scalding and skin irritation.
Avoid skin contact with hot oil.
Make sure that the pressure in the lubrication
system is relieved before work is carried out.
Never start or operate the engine with the oil fill-
er cap removed since oil will be ejected force-
fully.
Dispose of used oil through an authorized
waste disposal contractor.
Cooling system
Never open the coolant filler cap while the en-
gine is hot. Steam and hot coolant can come
out forcefully and cause scalding.
If the cooling system must still opened or disas-
sembled while the engine is hot, open the filler
cap very cautiously and slowly to release the
pressure before the cap is removed. Use
gloves since the coolant is still very hot.
Dispose of used coolant through an authorized
waste disposal contractor.
Fuel system
Always use gloves when checking for leaks in
or performing other work on the fuel system. Al-
ways wear eye protection when testing injec-
tors.
Fuel escaping under high pressure can pene-
trate body tissue and cause serious injury.
Never use non-genuine parts in the fuel system
and the electrical system. Genuine parts are
designed and manufactured to minimize fire
and explosion hazard.
Before starting
Install any guards that have been removed be-
fore the engine is started. Check to ensure that
no tools or other objects have been left on the
engine.
Never start the engine unless the air filter is in-
stalled. Otherwise there is a risk of objects en-
tering the compressor wheel or a risk of
personal injury from contact with it.
10
TYPE DESIGNATIONS
The engine designation indicates, in the form of a code, the type of engine, its
size and intended use, etc.
The type designation and engine serial number are indicated on a type plate
affixed to the right-hand side of the engine. The engine number is also stam-
ped on the top of the engine block beside the first cylinder head.
Engines that are certified regarding smoke and emissions are fitted with a cer-
tification plate specifying the documents they conform to. The plate is fitted
to rocker cover number two as viewed from the front.
DI 9 44 M 31 S LR
Type
D
Turbocharged
diesel engine
DI
Turbocharged diesel engine with liquid-cooled charge air cooler
Displacement
in whole dm
3
Performance and certification code
Indicates, together with the application code, the normal gross engine
output.
The actual output setting of the engine is indicated on the engine card.
Application
M
For marine use
Variant 01-99
Governor type
D
Electronically controlled auxiliary governor
S
RSV, all-speed and single-speed governor
T
RQ, single-speed governor
K
RQV-K, all-speed governor
Classification society (applies to classed engines)
ABS American Bureau of Shipping
BV
Bureau Veritas
GL
Germanischer Lloyd
LR
Lloyd’s Register of Shipping
DNV Dwt Norske Veritas
RINA Registro Italiano Navale
SjöV Sjöfartsverket
1.
Type plate
2.
Engine number,
stamped in engine block
3.
Oil cooler
4.
Oil dipstick
5.
Oil cleaner
6.
Protective anode
7.
Draining, engine oil
8.
Coolant pump
9.
Turbo charger
10.
Injection pump
11.
Fuel filter
12.
Starter motor
13.
Alternator
14.
Draining, coolant
15.
Oil filling
16.
Sea water pump
17.
Heat exchanger
18.
Charge air cooler
19.
Turbo filter
The drawings illustrate a common type of DI9 engine.
Your engine may have other equipment not shown here.
9
11
10
2
4
7
14
12
13
6
5
1
15
3
8
7
16
17
18
19
12
STARTING AND RUNNING
AT FIRST START
When the engine is started for the first time, follow the maintenance points
listed under "First start" in the maintenance schedule, see page 19.
Since the points are important for satisfactory operation of the engine right
from the outset, they are also listed below.
1. Checking the oil level (see page 21).
8. Checking the coolant (see page 26).
The coolant should contain corrosion inhibitor to protect the cooling
system from corrosion.
If there is a danger of freezing:
- Only anti-freeze glycol should be used in the coolant as protection
against corrosion. We recommend only nitrite-free anti-freeze glycol
with the following supplier designations:
BASF G48 or BASF D542
- The concentration of glycol should be 30 - 60% by volume depending
on the ambient temperature. A content of 30 % by volume provides pro-
tection down to -16 °C. See page 26.
- Never top up with only water or only glycol. Fluid losses must always
be replaced with pre-mixed coolant having the same glycol concentra-
tion as that in the engine. If the glycol content drops, both anti-freeze
protection and protection against corrosion are impaired.
Note
A glycol concentration below 30% by volume will not provide suf-
ficient protection against corrosion. Glycol concentrations higher
than 60% do not improve anti-freeze protection and have a nega-
tive effect on engine cooling capacity.
If there is no danger of freezing:
- Only Scania Anti-corrosive should be used in the coolant as protection
against corrosion. The correct corrosion inhibitor content is 7-12% by
volume and must never be less than 7% by volume. The inhibitor in Sca-
nia Anti-corrosive is free of nitrite.
- First filling: Fill the cooling system with water + 10% by volume of
Scania Anti-corrosive. Use drinkable water with a pH value of 6 - 9.
- Never top up with only water or only anti-corrosive! Fluid losses
must always be replaced with premixed coolant:
water + 10 % by volume of Scania Anti-corrosive.
Coolant filter (not standard equipment)
Only coolant filter without inhibitor may be used. The use of coolant filters
increases the life of the coolant and reduces the risk of deposition corrosion.
Coolant composition:
If there is a danger of freezing:
minimum 30% glycol by volume
maximum 60 % glycol by volume
If there is no danger of freezing:
7-12% by volume
Scania Anti-corrosive
(no glycol)
Ethylene glycol and corrosion
inhibitor, if swallowed can be
fatal.
Avoid contact with the skin.
The recommended glycol must
not be mixed with glycol having
nitrite-based anti-corrosive.
The use of too much Scania
Anti-corrosive as mixed with
glycol may cause deposits.
If a coolant filter has been fitted
it must not contain inhibitor.
14. Checking the fuel level (see page 35).
17. Checking the electrolyte level in batteries (see page 37).
18. Checking the state of charge in batteries (see page 37).
20. Checking the coolant level monitor (see page 38) (if fitted).
21. Checking the temperature monitor (see page 39).
22. Checking the oil pressure monitor (see page 40).
23. Checking stop feature (see page 40).
24. Checking transmission belt (see page 42).
CHECKS BEFORE RUNNING
Before running, ”Daily maintenance” as described in the maintenance sche-
dule should be carried out, see page 19.
STARTING THE ENGINE
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 page 35).
For environmental reasons, your new Scania engine has been designed to use
a smaller amount of fuel when starting. Using unnecessarily large amounts of
fuel when starting the engine always results in the discharge of unburnt fuel.
- Engines with mechanical stop control: Set the stop control to operating
position.
- Open fuel valve (if fitted).
- Declutch the engine (does not apply to engines with fixed clutch, e.g.
gensets).
- Engines with battery master switch: Switch on the power using the bat-
tery master switch.
- Set the speed control to raised idling. (Does not apply to gensets)
- Start the engine.
Important
A maximum of 3 start attempts per minute may be made when
the stop solenoid is activated at start. The timer module can
be damaged resulting in the loss of the stop feature.
Starting at low temperatures
Local environmental requirements must be complied with. Starting aids,
engine heaters and/or flame start devices should be used to avoid starting
problems and white smoke.
To limit white smoke, the engine should be run at low speed and under mode-
rate load. Avoid running it longer than necessary at idling speed.
Only start the engine in a
properly ventilated area.
When operating the engine in
an enclosed area, an effective
extraction device for exhaust
gases and crankcase gases
must be used.
Never use starting spray or
similar as a starting aid.
An explosion may occur in the
intake pipe, which could cause
personal injury.
Immobilise the starting device
when working on the engine.
If the engine starts out of
control, there is a
SERIOUS RISK
OF INJURY.
14
At temperatures below 0 °C:
Note
Only use starting aids recommended by Scania
.
- The starter motor may only be used for 30 seconds at a time. After that
time it must rest for 2 minutes.
If the engine has flame start:
- Operating flame start without timer relay: Press the control button,
which also acts as a pre-glow button (max. 20 seconds). The glow plug
continues to glow as long as this button is depressed after the engine has
started. Maximum time is 5 minutes.
- Operating flame start with timer relay: Press the pre-glow button
(a maximum of 20 seconds). Release it when the engine starts. The timer
relay keeps the glow plug glowing for 5 minutes. If a shorter glow time
is required, press the release button. The key must be set to the
0 position if the start attempt fails.
Note
If the engine is equipped with an INTERLOCK switch, this
switch should be depressed and held down until the oil pressure
has reached a sufficiently high level.
- Generator sets should be operated under load immediately after starting
to avoid the risk of white smoke. This applies in particular to engines
that have been installed without aids for heating or applying a basic
load.
- Set the appropriate idle speed before the engine reaches 1,000 rpm (does
not apply to gensets).
- Warm up the engine with a light load. A light load on a cold engine
gives better combustion and faster heating than warming up with no
load.
Maximum starter engagement
time is 30 seconds. Risk of
overheating. Allow starter to
cool for 2 minutes after a
starting attempt before
cranking again.
RUNNING
Check instruments and warning lamps at regular intervals.
Engine speed
The Scania tachometer is divided into sectors of different colours, as follows
.
Coolant temperature
Correct coolant temperature during operation:
70 - 93 °C for system at atmospheric pressure.
70 - about 100 °C for system with positive pressure.
High coolant temperature leads to engine damage. Reduce the load on the
engine in order to lower the temperature. If the temperature does not drop,
stop the engine and look for the fault.
During long periods of operation with very low power take-off, the engine
may have difficulty in reaching 70 °C. However, if the load is increased, tem-
perature will rise.
0 - 500 rpm
red area:
prohibited engine speed, passed when
stopping and starting.
500 - 700 rpm
yellow area:
low idle.
700 - 2200 rpm
green area:
normal operating speed.
Highest torque and lowest fuel consump-
tion at 1400 - 1600 rpm. Low operating
speed gives less engine wear.
2200 - 2600 rpm
yellow/
green
striped:
unsuitable operating speed. May occur
when switching off .
2600 - 3000 rpm
red area:
prohibited engine speed
16
Oil pressure
Max. oil pressure:
warm engine running at a speed above 800 rpm
6 bar
Normal oil pressure:
warm engine running at operating speed
3 - 6 bar
Min. oil pressure:
warm engine running at 800 rpm
0.7 bar
At engine speeds below 800 rpm the gauge may indicate low oil pressure alt-
hough no fault is present.
Oil pressure below 0.7 bar at speeds above 800 rpm will cause engine
damage. The engine must be stopped immediately.
Charging indicator lamp
If the lamp comes on during operation
:
- Check/adjust the alternator drive belts as described in the maintenance
step. See page 42.
- If the charging indicator lamp is still on, this could be due to an alterna-
tor fault or a fault in the electrical system.
STOPPING THE ENGINE
1.
Run the engine without a load for a few minutes if it has been run con-
tinuously with a heavy load.
2.
Stop the engine using the stop control. Engines with a stop solenoid and
fuel shut-off valve are stopped using the stop button. Hold the stop but-
ton depressed until the engine has fully stopped.
3.
Engines with battery master switch: Cut the power using the battery
master switch. (Does not apply to emergency power back-up units).
4.
Set the control switch to 0. (Does not apply to emergency power back-
up units).
Emergency stop
The stop solenoid linkage system has a knob marked ”STOP”. Pull the lin-
kage system to the stop position using this knob if it is not possible to stop the
engine using the stop solenoid.
High lubricating oil pressure
(above 6 bar) is normal when
starting a cold engine.
There is danger of turbo damage
and post boiling if the engine is
stopped without cooling.
The power must not be switched
off before the engine has
stopped.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст