Vetus DT4.70 User manual

Operation manual
DT4.70 DTA4.85

ii

1
Operation manual
Please enter the serial numbers here.
These numbers should be quoted when inquiring about Customer
Service, Repairs or Spare Parts (see page 6).
We reserve the right to make any changes without previous
notice.
Copyright © 2010 Vetus N.V. Schiedam Holland
Serial numbers
Engine serial number Vetus:
Mitsubishi:
Gearbox serial number:
DT4.70
DTA4.85
360502.01

2
Please read and observe the information
given in this operation manual. This will
enable you to avoid accidents, preserve
the manufacturer’s warranty and maintain
the engine in peak operating condition.
Make sure that the manual will remain
intact and damage is prevented. Keep the
manual away from humidity and heat.
Do not alter the content of the manual.
The manual is an integral part of the
engine. Hand over the manual tot the new
owner if boat or engine is being sold.
For the Guarantee Conditions, see the
Vetus Diesel ‘Service and Warranty
Manual’ (320199.05).
This engine has been built exclusively
for the application specified in the scope
of supply and is to be used only for the
intended purpose. Any use exceeding
that scope is considered to be contrary to
the intended purpose. The manufacturer
will not not assume responsibility for any
damage resulting there from. The risks
involved are to be borne by the user.
Use in accordance with the intended
purpose also implies compliance with the
conditions laid down by the manufacturer
for operation, maintenance and servic-
ing. The engine should only be operated,
maintained and serviced by persons who
are familiar with the former and the haz-
ards involved.
The relevant accident prevention guide-
lines and other generally accepted safety
and industrial hygiene regulations must
be observed.
Unauthorized engine modifications will
invalidate any liability claims against the
manufacturer for resultant damage.
Manipulations of the injection and regu-
lating system may also influence the
performance of the engine, and its emis-
sions. Adherence to legislation on pollu-
tion cannot be guaranteed under such
conditions.

3
Inhoud
1 Safety measures 4
Warning indications 4
Preventing fire and explosion 5
Prevention of injury 6
When problems occur 8
2 Introduction 9
Data tag 10
Cylinder numbering 11
Direction of rotation 11
Identification of engine parts
DT4.70 12
Identification of engine parts
DTA4.85 14
Control panels 16
Operating lever 19
3 First commissioning 20
4 Running-in 31
5 Use 32
General guidelines 32
Starting 33
Cruising 38
Stopping 41
6 Maintenance 42
Introduction 42
Maintenance schedule 44
Checking engine oil level 46
Checking coolant level 47
Checking and cleaning the raw
water strainer 48
Draining of water from the water
separator/fuel filter 49
Gearbox oil level check 52
Draining the after-cooler (charge
air cooler) 53
Battery, cables and connections 54
Engine oil change 58
Changing the gearbox oil (Tech-
nodrive) 61
Changing the gearbox oil (ZF-
Hurth) 62
Fuel filter replacement 64
Cleaning filter fuel lift pump 66
Bleeding, after fuel filter replace-
ment 67
Checking the V-belt 68
Flexible engine mounts 70
Hose connections and fasteners 71
Raw water pump inspection 72
Coolant replacement 74
Changing the air filter 78
Checking the starter motor and
alternator 79
Cleaning the heat exchanger 80
Cleaning the after cooler 86
7 Winter storage procedure 90
8 Recommissioning after
winter storage 100
9 Troubleshooting 106
10 Technical data 116
11 Operating media 123
Fuel 123
Lubricating oil 124
Coolant 127
12 Wiring diagrams 128
13 Overall dimensions 132
14 Index 136

4
1 Safety measures
Da n g e r
Indicates that great potential danger exists
that can lead to serious injury or death.
Wa r n i n g
Indicates that a potential danger that can
lead to injury exists.
Ca u t i o n
Indicates that the usage procedures, ac-
tions etc. concerned can result in serious
damage to or destruction of the engine.
Some CAUTION indications also advise
that a potential danger exists that can lead
to serious injury or death.
no t e
Emphasises important procedures, cir-
cumstances etc.
Symbols
Indicates that the relevant proce-
dure must be carried out.
Indicates that a particular action is
forbidden.
Pass the safety precautions on to other
people who will use the engine.
General rules and laws concerning safety
and accident prevention must always be
observed.
Warning indications
The following warning indications are used
in this manual in the context of safety:
Warning indications

5
1 Safety measures
Do not smoke if refuelling.•
Avoid spilling fuel on hot surfaces. Spilled•
fuel must be cleaned up immediately.
Do not use petrol or diesel to clean com-•
ponents but make use of good quality,
non-inflammable, non-poisonous sol-
vents that are available from dealers.
Always be alert to possible fuel or oil•
leakage!
If you discover a leak, take counter-
measures immediately. If fuel or oil is
spilled on a hot engine, fire can break
out. This can cause physical injury or
damage to the equipment.
Do not fill the fuel tank while the engine•
is running!
Only refuel with the engine stopped.
Never put flammable materials in the vi-•
cinity of the engine!
Keep the engine and engine compart-•
ment clean!
Remove all inflammable materials such
as fuel, oil and other litter before it builds
up in the vicinity of the engine.
Connecting (emergency) extra starting•
battery
Proceed as follows when an extra start-
ing battery is used to jump start the en-
gine:
First connect the positive lead-
Lastly connect the earth cable (nega--
tive pole) to the engine block
If this cable is connected in error to the
negative pole of the engine battery, a
spark can occur. The result of this could
be that explosive gas produced by the
battery explodes.
Once the engine is started, first re--
move the earth cable.
Preventing fire and explosion
Fi r e r i s k !

6
1 Safety measures Prevention of injury
The moving parts of the engine are dan-•
gerous. Never touch moving parts of the
engine while it is running, to prevent cuts
and other injuries.
Stop the engine before carrying out•
maintenance!
Always stop the engine before topping•
up or replacing fuel, oil or coolant.
Before carrying out inspection or mainte-•
nance, the ignition key must be removed
and the main battery switch turned off.
Satisfy yourself that everything is in or-•
der before the engine is started again!
Make sure that no-one is working on or
close to the engine before you start it.
Remove all foreign objects from around
the engine, such as litter, oil, tools and
other components that are not part of
the engine.
Install all protective covers!•
To prevent injury, make sure that all pro-
tective covers and cover plates are re-
placed over moving parts.
Remove any tool used to bar the engine.•
If you leave this in position, serious injury
or damage to the equipment can be the
result.
NEVER open the cap of the expansion•
tank when the engine is at working tem-
perature.
Only check the level of the coolant after•
the engine has been stopped and the
cap of the expansion tank is cool enough
to remove with bare hands.

7
1 Safety measures Prevention of injury
Be careful with battery acid!•
If battery acid comes in contact with the
eyes or skin, rinse the affected part im-
mediately with copious amounts of wa-
ter. If battery acid comes in contact with
the eyes, rinse them out immediately with
plenty of water and consult a doctor.
Be careful with antifreeze!•
If you accidentally swallow antifreeze,
make yourself vomit and consult a doc-
tor immediately. If antifreeze comes in
contact with your eyes, wash them out
immediately with plenty of water and
consult a doctor.
Make sure that you are wearing suitable•
clothing before starting work!
For your own safety you will most likely
need special equipment - safety helmet,
eye protection, safety boots, safety gog-
gles, heavy gloves, ear protectors etc.
Use them when necessary.
Carry out maintenance procedures safe-•
ly by only using suitable tools.
Exhaust gases•
Do not start the engine if the exhaust
system is not connected.

8
When the engine stops suddenly:•
If the engine stops suddenly, do not start
it again immediately. Track down the
cause and carry out the necessary re-
pairs before you start the engine again. If
you do not do this, serious engine prob-
lems can develop.
If the oil pressure is too low:•
Stop the engine immediately and check
the lubrication system. Running an en-
gine with low oil pressure can cause
bearing and other parts to seize.
If the engine overheats:•
If the engine should overheat, do not
switch it off immediately. If an overheat-
ed engine is stopped suddenly, this can
cause the coolant temperature to rise
rapidly and moving parts to seize. First
let the engine run in neutral to allow the
hot parts of the engine to cool down,
stop the engine and allow it to cool,
and then gradually top up the coolant.
Remember: adding coolant to an over-
heated engine can cause damage to the
cylinder head.
If the drive belt has broken:•
Stop the engine immediately. If an en-
gine is running with a broken drive belt
this can result in the engine overheating
and in turn to coolant squirting out of the
expansion tank.
If the engine behaves strangely:•
Stop the engine or reduce the speed as
far as possible.
Do not use the engine again until the
cause of the defect has been solved.
1 Safety measures When problems occur

9
Vetus diesel engines are designed both
for pleasure and commercial craft. Con-
sequently, a wide range of variants are of-
fered to meet the requirements of specific
cases.
Your engine is appropriately equipped for
your vessel, which means that not nec-
essarily all components described in this
manual are mounted to your engine.
We have endeavoured to highlight any dif-
ferences so that you will able to locate the
operating and maintenance instructions
relevant to your engine quickly and easily.
Please read this manual before starting
your engine and always observe the oper-
ating and maintenance instructions.
We are available to help with any additional
inquiries.
Sincerely, Vetus n.v.
2 Introduction
Dear customer,

10
2 Introduction Data tag
Serial number
1 Type plate
The engine type and the serial number are
on the type plate.
The engine type and serial number must
be quoted when ordering spare parts.
Position of the type plate2
The type plate is positioned as shown.
3 Serial number
The serial number is stamped in the engine
block in the position shown.
DT470A3452
123456
A
2500 52 70
200910
VD00800 VD00875 VD00880

11
2 Introduction Cylinder numbering
Direction of rotation
Cylinder numbering direction of rotation4
Cylinder numbering
Cylinders are numbered consecutively, be-
ginning at the flywheel end.
Direction of rotation
The direction of rotation is viewed towards
the flywheel counter clockwise.
VD00881

12
2 Introduction Identification of engine parts DT4.70
1 Coolant pump
2 Filler cap (pressure cap) cooling
system
Cooling system3 air bleeding nipple
4 Connection water heater ‘IN’
5 Oil filler cap
6 Lift eye
7 Expansion tank
8 Connection airvent
9 Raw water pump, inlet ø 28 mm
10 V-belt
11 Oil filter
12 Engine oil cooler
13 Cooling system drain plug, engine
block
14 Alternator
15 Flexible engine mount
16 Zinc anode
17 Heat exchanger
18 Cooling system drain plug, heat
exchanger
19 Connection for prop shaft lubrication
G 3/8
20 Connection of push-pull cable gear-
box
21 Exhaust injection bend ø 75 mm
234568
1811 14 15 16 17
910
17
12 13 19
VD00850

13
2 Introduction Identification of engine parts DT4.70
43
20 21 22 23 24 27
4140393836353433323130
2925
37
2826
42
VD00851
22 Turbocharger
23 Air filter
24 Lift eye
25 Oil dipstick
26 Extra expansion tank connection
(only for keel cooling option)
27 Connection water heater ‘OUT’
28 Return fuel pipe connection 8 mm
29 Push-pull throttle cable connection
30 Air inlet
31 Gearbox
32 Oil cooler, gearbox
Water separator/fuel filter bleed nipple33
34 Drain plug for water separator/fuel
filter
35 Water separator/fuel filter
36 Counter plug electrical system
37 Starter motor
38 Fuel supply pipe connection 8 mm
39 Fuel lift pump
40 Fuse
41 Stop relay
42 Auxiliary relay
43 Glow relay

14
2 Introduction Identification of engine parts DTA4.85
1 Coolant pump
2 Filler cap (pressure cap) cooling
system
3 Cooling system air bleeding nipple
4 Connection water heater ‘IN’
5 Oil filler cap
6 Lift eye
7 Expansion tank
8 Connection airvent
9 Raw water pump, inlet ø 28 mm
10 V-belt
11 Oil filter
12 Engine oil cooler
13 Cooling system drain plug, engine
block
14 Alternator
15 Flexible engine mount
16 Zinc anode
17 Heat exchanger
18 Cooling system drain plug, heat
exchanger
19 Connection for prop shaft lubrication
G 3/8
20 Connection of push-pull cable gear-
box
21 Exhaust injection bend ø 75 mm
22 Turbocharger
23 Air filter
234568
1811 14 15 16 17
910
17
12 13 19
VD00852

15
2 Introduction Identification of engine parts DTA4.85
20 21 22 25 26 28
4443424138373635343332
30 3127
39
292423
40 4645
VD00853
24 Zinc anode
25 After cooler
26 Lift eye
27 Oil dipstick
28 Extra expansion tank connection
(only for keel cooling option)
29 Connection water heater ‘OUT’
30 Return fuel pipe connection 8 mm
31 Push-pull throttle cable connection
32 Air inlet
33 Gearbox
34 Oil cooler, gearbox
Water separator/fuel filter bleed nipple35
36 Drain plug for water separator/fuel
filter
37 Water separator/fuel filter
38 Counter plug electrical system
39 Starter motor
40 Fuel supply pipe connection 8 mm
41 Fuel lift pump
42 Drain plug after cooler
43 Fuse
44 Stop relay
45 Auxiliary relay
46 Glow relay

16
2 Introduction Control panels
Engines with intercooling
Panel, model 34
1 Tachometer/Operating hours counter
2 Voltmeter
3 Starter pre-heat switch/lock
4 Warning light high raw water temperature
5 Warning light low oil pressure
6 Warning light high coolant temperature
7 Warning light battery charging
8 Indicator light pre-heating
9 Warning light gearbox low oil pressure [1]
10 Temperature gauge, coolant
11 Oil pressure gauge
[1] This is an option, not fitted as standard.
53
78
6
49
1 2
10
11
VD00631

17
8 Indicator light pre-heating
9 Warning light gearbox low oil pressure [1]
[1] This is an option, not fitted as standard.
1 Tachometer/Operating hours counter
2 Voltmeter
3 Starter pre-heat switch/lock
4 Warning light high raw water temperature
5 Warning light low oil pressure
6 Warning light high coolant temperature
7 Warning light battery charging
2 Introduction Control panels
Engines with intercooling
Panel, model 22
Panel, without voltmeter, model 21
53
78
6
49
1 2
VD00576
53
7
8
6
4
VD00575
Panel, model 10

18
8 Indicator light pre-heating
9 Warning light gearbox low oil pressure [1]
[1] This is an option, not fitted as standard.
1 Tachometer/Operating hours counter
2 Voltmeter
3 Starter pre-heat switch/lock
4 Warning light second alternator
5 Warning light low oil pressure
6 Warning light high coolant temperature
7 Warning light battery charging
2 Introduction Control panels
Engines with keel-cooling
Panel, model 22
Panel, without voltmeter, model 21
53
78
6
49
1 2
VD00630