Installation manual
ZF
MARINE
TRANSMISSIONS
OPERATING
TEMPERATURE
A
CAUTION:
If
the
fTansmission
fluid
temperature
is
too
high,
stop
the
engine
immediately
and
check
the
transmission
fluid.
Normal
operating
temperature
of the
transmission
fluid
should
be
in
the
range of
122
0
F
(50
0
C)
to
212
0
F
(100
0
C)
..
A
maximum
temperature
of
266
0
F (l30° C)
may
be
only
reached
for
a short
time.
Make
certain
there
is
enough
space around
the
transmission
to
provide
good
ventilation
and
cooling.
TRANSMISSION
COOLER
Coolers
are
standard
equipment
for
the
ZF-25M,
ZF-25MA
and
the
ZF,30M,
The
cooler
is
a separate
part
of the
transmission
which
prevents
any
possibilities
of
coolant diluting
the
transmission
fluid.
However,
the
continued
flow
of coolant thm
the
cooler
will,
in
time,
erode
the
inside
of the cooler
causing
external
leaks.
A
transmission
cooler
may
last ten years
or
more
bu~
in
some
circumstances,
depending
on
operating
hours,
tropical
waters,
maintenance,
etc.
it
might.
only
last half
that
time.
WESTERBEKE
recommends
having a
spare
cooler
aboard.
TRANSMISSION
MAINTENANCE
Transmission
maintenance
is
minimal.
Keep
the exterior
housing
clean,
check
the
fluid
level
as
part
of your regular
routine,
and
change
the
fluid
every
300
operating
·hours.
Periodically
inspect
the
transmission
and
the c()oler for leaks
and
corrosion.
Make
certain
the air
vent
is
cle~and
when
checking
the
fluid
level
look
for
signs
of
waterc(lnt8nnnation
(fluid
will
appear
as
strawberry
cream).
Lay-up/Winlerize
Storage
requires
special
care.
Follow
these proi;edures:
o
Drain
water
from
the transmission
oil
coolerimd replace
with
a
proper
mixture
of
antifreeze
coolant.'.
NOTE:
This
operation
will
normally occur
'When
the
engine
raw
water
cooling
system
is properly
winterized.
o
cl~an
up
the
transmission
and
touch
up
unpainted
'areas
(use
heat
resistant
paint).
o
Fill
the
transmission
with
Dextron III ATFfluid
to
prevent
internal
corrosion
(extended
storage
only,
twelve
months
or
more).
o
Loosen
attaching
hardware
from
the transmission output
flange
and
propeller shaft
coupling
flange
hefore
removing
the boat
from
the
water.
Separate the
flanges
and
spray
with
lubricant.
.
o
Inspect
the
gear
shift
cable,
linkage, and
attachments.
Look
for
corrosion
of the
end
fittings,
cracks
or
cuts
in
the
condui~
and
bending
of
the
actuator roqs:Lubricate
all
moving
parts.
NOTE:
If
the
trqnsmission
is
to
be stored for.a
long
time
(twelve
months
or
more),
it
slwuld
be
topp~d
offwith
fluid
to
prevent
intimal
corrosion.
Reduceth,e
fluid.
level
before
putting
the
engine
back
into
service
- -
For
additional
inforniation conlac
ZF
Industries
Marine
US
Headquarters
3131
SW
42nd Street
Fort
Lauderdale, FL
3331:
Tel.:
(954)
581-4040
Fax:
(954)
581-4077
www.ZF~atin.l..COlIl
Engines
& Generators
41