38
4. Maintenance / Repair
4.1
maintenanCe
Magtrol TM Series In-Line Torque Transducers are virtually maintenance-free. This is due to the
following aspects of their construction:
• Lifelong lubrication of the bearings.
• Transmission of the torque signal from the rotating measuring elements to the signal
processing electronics by a process of induction rather than by using slip rings. This eliminates
mechanical wear.
however, it may be necessary to change the bearings after extended use. The theoretical lifetime of
the bearings is 5000 hours and Magtrol recommends that the bearings be replaced after this time.
(bearings should be replaced as soon as they start showing signs of wear.) higher wear occurs when
the transducer is operated outside its optimal working conditions. This is especially true when the
transducer is operated at excessive rotational speeds, which results in the generation of axial and
radial forces on the bearings.
C
aution
:
t
he
user
should
not
attempt
to
Change
the
bearings
himself
. t
he
transduCer
should
be
returned
to
m
agtrol
for
this
operation
.
s
imilarly
,
the
user
should
not
attempt
to
Carry
out
revisions
or
repairs
of
any
kind
on
the
meChaniCal
or
eleCtroniC
Components
making
up
the
transduCer
. i
f
a
problem
is
suspeCted
, m
agtrol
should
be
ContaCted
so
that
arrangements
Can
be
made
to
perform
any
repairs
in
the
faCtory
. f
ailure
to
observe
the
above
may
lead
to
the
transduCer
being
seriously
damaged
.
Note:
The TM Transducer housing is sealed. If there is any evidence that
the housing has been opened and unauthorized modifications have
been attempted, the warranty will be invalidated.