HURTH
HBW
nF
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
III).
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
under the
hex
head
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 cablcs.
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
Of
when
you
change
engine
oil.
Removing
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
I1lnning
the
engine, shut
down
and
recheck
the
fluid
level.
Drain
plug
IOTQue
20
-
25
Mbs
NOTE:
When changing
the
fluid, take
care
not
to
lose
the
draill plug sealing washer.
The
drain plllg will leak without
this
sea/il1g
washa
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
propeller
stopped (for charging
the
battery),
will
have
no
.
detrimental
effects
on
the
transmission
DAILY
OPERATION
D Check
the
transmission
fluid.
D
Visually
check the gear shift linkage
and
transmission.
d
Start
the
engine
in
neutral,
allowing a
few
minutes
at
idle
to
warm
the
fluid.
D Shift into
gear.
NOTE:
Too
Iowan
idle speed will produce a chollering liaise
from the transmission
gear
and
damper plate.
III
silch cases
the
idle speed should be increased
For additional infonnation refer
to
the
following
text
in
this
Transmission Section: SHAFT COUPLINGS. MAINTENANCE
AND
TRANSMISSION TROUBLESHOOTING.
'.
HBWJZF
TRANSMISSIONS
SPECIFICATloNSHli
General
Gear
ratio
(oplional)
Lubricaling
Fluid
Transmission
Sump
Capacity
Propeller
Rotalion
(Hurth/ZF
Standard
Transmission)
Case-
hardened
helical
gears,
with
a
servo-
operated
multiple
disc
clulch.
HBW
50lZF
5M
(2.05
:
1)
HBW
100lZF
10M
(1.79:
1)
HBW
150VIZF
15MIV
(2.13:
1)
HBW
150NZF
15MA
(1.88:
1)
ATF
-
or
Dextran
- /I
or
/II
HBW
50lZF
5M
0.63pts
(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
...
.Univarsal
38
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