HURTH
HBWJZF
TRANSMISSIONS
INITIAL
OPERATION
All
HBWIZF
marine
transmissions
are
test-run
on
a test
stand
with
the
engine
at
the
factory
prior
to
delivery.
For
safety
reasons
the
fluid
is
drained before
shipment.
Fill
the
gearbox
with
Automatic
Transmission Fluid
(DEXRON
II or DEXTRON ill). The
fluid
level should
be
up
to
the
index
mark
on
the
dipstick.
To
check
the
fluid
level,
just insert the dipstick,
do
not
screw
it
in.
Screw
the
dipstick
into
the
case
after
the
fluid
level
is
checked
and
tighten.
Do
not
forget
the
sealing ring
um!er
the hexhead of
the
dipstick.
Check
for
leaks
and
change
the
fluid
after
the
first
25
hours,
also
make
a
Visual
inspection of
the
coupling,
oil
cooler
and
hoses,
and
shift cables.
DIPSTICK
VENT
FLUID
LEVEL
NOTE:
Keep
vent
holes
clear.
.
FLUID
CHANGE
Change
the
fluid
for the
.first
time after about
25
hours of
operation,
then
every
250
operating hours
or
at
least once a
year orwhen you change engine oil.
Re~oving
the
fluid
Push a
suction
pump hose down through
the
dipstick hole
to
the
bottom
of
the
housing and suck out the
fluid.
(If
space
allows,
use
the transmission drain). Remove
the
drain
plug
from
the
bottom of
the
transmission and
allow
the
fluid
to
drain
into
a container,
then
reinstall the plug
with
its sealing
washer.
Wipe
down
the
transmission and·properly dispose of
the
used
fluid.
After running
the
engine,
shut
down
and
recheck
the
fluid
level.
Drain
plug
lorque
·20·25
HJIbs
NOTE:
When
changing
the
fluid,
take
care
not
to
lose
the
drain
plug
sealing
washer.
The
drain plug will leak
without
this
sealing
washer.
A
WARNING:
Never
pull out
the
dipstick
while
the
engine
is
running.
Hot
fluid will
splash
from
the
dipstick
hole.
This
could
cause
severe
burns.
LOCKING
THE
PROPELLER
Locking of
the
propeller shaft
by
an
additional
brake
is
not
required:
use
the
gear shift lever
position
opposite ·your
direction of
travel
for this purpose.
Never
put
the gear shift
in
the
position corresponding
to
the
direction
of travel of
the
boat.
WHEN
UNDER
SAIL
OR
BEING
TOWED
Rotation of
the
propeller without
load
(in
neutral),
such
as
when
the
boat is being sailed,
being
towed,
or
anchored
in
a
river,
as
well
as
operation of the
engine
with
the
prop~lIer
stopped (for charging the battery),
will
have
no
detrimental effects
on
the
transmissioa
DAILY
OPERATION
D.
Check
the
transmission
fluid.
o
Visually
check
the
gear shift linkage
and
transmission.
[j
Start
the
engine in
neutral,
allowing
a
few
minutes
at
idle
to
warm
the
fluid.
o Shift into
gear.
NOTE:
Too
Iowan
idle
speed
will
produce
a
chattering
noise
from
the
transmission gear and
damper
plate.
In
such
cases
the
idle
speed should
be
increased
For additional information refer
to
the
following
text
in
this
Transmission Section: SHAFf
COUPLINGS,
MAINTENANCE
AND
TRANSMISSION
TROUBLESHOOTING.
HBWJZF
TRANSMISSIONS
SPECIFICATIONS
General·
Gear
ratio
(optional)
Lubricating
Fluid
Transmission
Sump
Capacity
Propeller
Rotation
(Hurthl
ZF
Standard
Transmission)
Case'
hardened
helical
gears,
with
a
servo·
operated
multiple
disc
clutch,
HBW
50lZF
5M
(2.05
:
1)
HBW100lZF10M
(1.79:1).
HBW
150VIZF
15MIV
(2.13:
1)
HBW
150NZF
15MA
(1.88:
1)
ATF
-
or
Dextran·
/I
or
11/
HBW
50lZF
5M
..
O.63pts
(0.3l)
HBW
100lZF
10M
0.74pts
(0.35l)
HBW
150VIZF
15MIV
2.1pts
(1.0L)
HBW
150NZF
15MA
1.0pts
(0.47l)
Transmissions
turn
Right
Hand
propellers·
Engines
& Generators
47
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