Volvo 2003T Manuale di Servizio Scaricare il pdf (Pagina 8)

General instructions

Repair instructions and methods

The working methods described in the Workshop Man-

ual apply to work carried out in a workshop. The en-

gine has been removed from the boat and is installed

in an engine fixture. Unless otherwise stated recondi-

tioning work which can be carried out with the engine

in place follows the same working method.

Warning symbols used in this Workshop Manual (for

full explanation of the symbols refer to the section;

”Safety Precautions”)

WARNING!

IMPORTANT!

Note!

are not in any way comprehensive since it is impossi-

ble to predict every circumstance under which service

work or repairs may be carried out. Volvo Penta AB

can only indicate the risks considered likely to occur

as a result of incorrect working methods in a well-

equipped workshop using working methods and tools

tested by Volvo Penta AB.

All operations described in the Workshop Manual for

which there are Volvo Penta Special Tools available

assume that these tools are used by the service tech-

nician or person carrying out the repair. Volvo Penta

Special Tools have been specifically developed to en-

sure as safe and rational working methods as possi-

ble. It is therefore the responsibility of the person or

persons using other than Volvo Penta Special Tools

or approved Volvo Penta working methods (as de-

scribed in a Workshop Manual or Service Bulletin), to

acquaint themselves of the risk of personal injury or

actual mechanical damage or malfunction that can re-

sult from failing to use the prescribed tools or working

method.

In some cases special safety precautions and user in-

structions may be required in order to use the tools

and chemicals mentioned in the Workshop Manual.

Always follow these precautions as there are no spe-

cific instructions given in the Workshop Manual.

By following these basic recommendations and using

common sense it is possible to avoid most of the

risks involved in the work. A clean work place and a

clean engine will eliminate many risks of personal inju-

ry and engine malfunction.

Above all when working on the fuel system, engine lu-

brication system, air intake system, Turbocharger

unit, bearing seals and seals it is extremely important

to observe the highest standards of cleanliness and

avoid dirt or foreign objects entering the parts or sys-

tems, since this can result in reduced service life or

malfunctions.

Our joint responsibility

Every engine consists of many systems and compo-

nents that work together. If one component deviates

from the technical specifications this can have dra-

matic consequences on the environmental impact of

the engine even if it is otherwise in good running order.

It is therefore critical that the stated wear tolerances

are observed, that systems which can be adjusted are

correctly set up and that only Volvo Penta Original

Parts are used on the engine. The stated service inter-

vals in the Maintenance Schedule must be followed.

Some systems, such as the components in the fuel

system, require special expertise and special testing

equipment for service and maintenance. Some com-

ponents are factory sealed for environmental and

product specific reasons. Under no circumstances at-

tempt to service or repair a sealed component unless

the service technician carrying out the work is author-

ized to do so.

Bear in mind that most of the chemicals used around

boats are harmful to the environment if used incorrect-

ly. Volvo Penta recommends the use of bio-degradable

degreasing agents for all cleaning of engine compo-

nents unless otherwise stated in the Workshop Manu-

al. When working onboard a boat make a special point

of preventing oil, waste water from washing compo-

nents entering the bilges; instead remove all such

waste for safe disposal at an approved site for de-

struction.

Tightening torques

The correct tightening torques for critical joints which

must be tightened using a torque wrench are listed un-

der ”Technical Specifications -Tightening Torques” and

stated in the method descriptions in the Workshop

Manual. All tightening torques apply to cleaned

threads, bolt heads and mating surfaces. Tigthening

torques stated are for lightly oiled or dry threads.

Where grease, locking or sealing agents are required

for screwed joints this is stated in both the operation

description and in ”Tightening Torques”. Where no

tightening torque is stated for a joint use the general

tightening torques according to the tables below. The

tightening torques stated are a guide and the joint

does not have to be tightened using a torque wrench.

Dimension Tightening torque

Nm ft.lbs

M5 ............. 5 3.6

M6 ............. 10 7.3

M8 ............. 20 14.7

M10 ........... 40 29.5

M12 ........... 70 51.6

M14 ........... 115 84.8

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 47 48

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Volvo 2003T Manuale di Servizio Pagina 8

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