6
General information
Certificated engines
If you own an engine certificated for any area
where exhaust emissions are regulated by law,
the following is important:
Certification means that an engine type is inspected
and approved by the authorities. The engine manu-
facturer guarantees that all engines manufactured of
that type correspond to the certified engine.
This places special requirements for mainte-
nance and service as follows:
• The maintenance and service intervals recom-
mended by Volvo Penta must be observed.
• Only genuine Volvo Penta replacement parts
may be used.
• The service of injection pumps and injectors or
pump settings must always be carried out by
an authorized Volvo Penta workshop.
• The engine must not be modified in any way ex-
cept with accessories and service kits ap-
proved by Volvo Penta.
• No modifications to the exhaust pipes and air
supply ducts for the engine room may be un-
dertaken.
• Seals may only be broken by authorized per-
sonnel.
In addition, the general instructions contained in the
Instruction Manual concerning operation, service
and maintenance must be followed.
IMPORTANT! Late or inadequate maintenance
/ service or the use of spare parts other than
Volvo Penta original spare parts will invalidate
AB Volvo Penta’s responsibility for the engine
specification being in accordance with the cer-
tificated variant.
Volvo Penta accepts no responsibility or liabil-
ity for any damage or costs arising due to the
above.
About the workshop manual
This Service Manual contains descriptions and in-
structions for the repair of the following engines in
standard format: MD22A, MD22L-A, MD22L-B,
MD22P-B, TMD22A, TMD22-A, TMD22-B, TMD22P-
C, TAMD22P-B. This Service Manual can show op-
erations carried out on any of the engines listed
above. As a result, the illustrations and pictures in
the manual showing certain engines components,
do not in some cases apply to all the engines listed
above. However, the repair and service operations
described are the same in all essential details.
Where they are not the same, this is stated in the
manual. Where the difference is considerable, the
operations are described separately. The engine
designation and engine number are displayed on the
identification plate (see the chapter “Identifying
numbers”). The engine designation and number
should be given in all correspondence about the en-
gine.
This Workshop Manual has been developed primari-
ly for Volvo Penta service workshops and qualified
personnel. Personnel using this book are assumed
to have a grounding in marine drive systems and
able to carry out the related mechanical and electri-
cal work.
Volvo Penta is continuously developing their prod-
ucts. We therefore reserve the right to make chang-
es. All the information contained in this book is
based on product data available at the time of going
to print. Any essential changes or modifications in-
troduced into production or updated or revised serv-
ice methods introduced after the date of publication
will be provided in the form of Service Bulletins.
Spare parts
Replacement parts for electrical and fuel systems
are subject to statutory requirements (US Coast
Guard Safety Regulations for example). Volvo Pen-
ta Genuine parts meet these requirements. Any
type of damage which results from the use of non-
original Volvo Penta replacement parts for the prod-
uct will not be covered under any warranty provided
by Volvo Penta.
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