4
General information
About this Workshop Manual
This workshop manual contains descriptions and re-
pair instructions for the standard versions of the
TAD734GE, TAD650VE, TAD660VE, TAD750 and
TAD760VE engines.
The workshop manual can illustrate tasks done on
any of the engines noted above. This means that the
illustrations and photographs which clarify certain de-
tails might not correspond with other engines in some
cases. Repair methods are similar in all important re-
spects, however. If this is not the case, this is noted.
Important differences are noted separately.
The engine designation and number are noted on the
number plate and engine decal. The engine designa-
tion and number must always be given in all corre-
spondence about any product.
The workshop manual is produced primarily for the
use of Volvo Penta workshops and service techni-
cians. For this reason the manual presupposes a cer-
tain basic knowledge and that the user can carry out
the mechanical/electrical work described to a general
standard of engineering competence.
Volvo Penta constantly improves its products, so we
reserve the right to make modifications without prior
notification. All information in this manual is based on
product data which was available up to the date on
which the manual was printed. Any material changes
introduced into the product or service methods after
this date are notified by means of Service Bulletins.
Spare parts
Spare parts for electrical and fuel systems are subject
to various national safety requirements. Volvo Penta
Original Spare Parts meet these specifications. Any
kind of damage whatsoever, occasioned by use of
non-original Volvo Penta spares for the product in
question, will not be compensated by the warranty of-
fered by Volvo Penta.
Certified engines
When doing service and repair on emission certi-
fied engines, it is important to be aware of the fol-
lowing:
Certification means that an engine type has been
checked and approved by the relevant authority. The
engine manufacturer guarantees that all engines made
of the same type are equivalent to the certified engine.
This makes special demands on service and repair
work, as follows:
●
Maintenance and service intervals recommended
by Volvo Penta must be complied with.
●
Only Volvo Penta original spares may be used.
●
Service to injection pumps, pump settings and in-
jectors must always be done by an authorized
Volvo Penta workshop.
●
The engine must not be converted or modified,
except for the accessories and service kits which
Volvo Penta has approved for the engine.
●
No installation changes to the exhaust pipe and
engine air inlet ducts may be done.
●
No seals may be broken by unauthorized personnel.
The general advice in the instruction book about oper-
ation, care and maintenance applies.
IMPORTANT!
Delayed or inferior care/mainte-
nance, and the use of non-original spares parts
means that Volvo Penta can no longer be re-
sponsible for guaranteeing that the engine com-
plies with the certified version.
Damage and/or costs which arise from this will
not be compensated by Volvo Penta.
Group 30: Electrical system
General information
