Installation manual
ZF
MARINE
TRANSMISSIONS
OPERATING
TEMPERATURE
A
CAUTION:
If
the
transmission
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°
F
(50°
C)
to
212°
F
(100°
C).
A maximum temperature of
266°
F
(130°
C)
may
b~
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 thru the cooler
will,
in
time,
erode
the
inside of the cooler causing external
leaks.
A transmission cooler may last
ten
years or more but, 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
COOLER
PERIODICALLY
INSPECT
FOR
EROSION
AND
LEAKAGE
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
cooler
for
leaks
and
corrosion. Make certain the air vent
is
clear
and
when
checking
the
fluid
level look for signs of water contamination
(fluid
will
appear
as
strawberry cream).
Lay-up/Winterize
Storage requires
special
care.
Follow these
procedures:
D Drain water
from
the transmission oil cooler
and
replace
with
a proper mixture of antifreeze
coolant.
NOTE:
This operation will normally occur when the
engine raw water cooling system is properly winterized.
D Clean
up
the transmission
and
touch
up
unpainted
areas
(use heat resistant paint).
D Fill
the
transmission
with
Dextran III
ATF
fluid
to
prevent internal corrosion (extended storage
only,
twelve
months or more).
D Loosen attaching hardware from the transmission output
flange
and
propeller shaft coupling
flange
before
removing the boat from the
water.
Separate
the
flanges
and spray with lubricant.
D Inspect
the
gear shift cable, linkage,
and
attachments.
Look
for
corrosion of
the
end
fittings,
cracks or
cuts
in
the conduit,
and
bending of
the
actuator
rods.
Lubricate
all
moving parts.
NOTE:
If
the transmission is to be stored
for
a long time
(twelve months
or
more), it should be topped
off
with
fluid to prevent intemal corrosion. Reduce the fluid level
before putting the engine back into service
For additional information contac
ZF Industries
Marine
US
Headquarters
3131
SW
42nd Street
Fort Lauderdale, FL
3331:
Tel.:
(954) 581-4040
Fax:
(954)
581-4077
www.ZF-Marine.com
Engines
.-.
(illa~rator_s
.
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