Installation manual
VELVET
DRIVE
TRANSMISSIONS
n n
FORWARD
NEUTRAL
REVERSE
TRANSMISSION
ACTUATING
LEVER
POSITIONS
DAILY
OPERATION
0
Check
the
transmission
fluid.
0
Visually
check
the
gear shift linkage and transmission.
0 Start
the
engine in neutral.
Allow
a
few
minutes at idle·
for
the
fluid
to
warm.
NOTE:
Too
low
an
idle
speed will
produce
a chattering
noise
jtom
the
transmission
gear
and
damper
plate.
In
such
cases
the
idle
speed should be
increased.
0 Shift
into
gear.
A
CAUTION:
Shifting
gears
abDve
1tloo
rpm
can
cause
damage
to
the
Bllglde
damper
plate.
Pulling
the
throttle
back
to
Idle
whBII
shifting
gsatS
will
save
.War
on
the
transmission
and
the
damper
plate.
INSPECTION
0
Visually
check
for
fluid
leaks at the hydraulic
connections.
Check
for
wear on the hydraulic lines and
'
replace
if
worn.
0 Lubricate
the
detent ball and shift cable attachments.
0
InspeCt
the
shift linkage.
0 Inspect
the
transmission bolts; retorque
if
necessary.
A
CAUTION:
Clutch
failure
will occurif
the
transmis·
slon
shift
lever
does
not
fully
Btlgage
the
detent
ball
ptiSitions.
··
CHANGING
THE
TRANSMISSION
FLUID
After
the
initial
50
hour change, the transmission
fluid
should
be
changed at
every
300
operating hours thereafter or at
winter
haul-out
However,
the fluid must be changed when-
ever
it
becomes
contaminated, changes color, or smells rancid.
0
Remove
the
fluid
filler cap
and
dipstick.
0
Remove
the
fluid
cooler return line and allow the fluid
to
drain
into a
container.
0 Reconnect
the
fluid
cooler return line.
0
Use
a suction
pump
to
remove the transmission fluid
through
the
filler
cap/dipstick hole.
0 Clean off the transmission and properly dispose
of
the
used
fluid.
Refill
the
transmission with
DEXTRON
III
ATF.
The
quantity will vary depending on the transmission
model
and
the installation
angle.·
Fill through the-dipstick hole.
0 Check the dipstick for the proper fluid
level.
0 Replace the fluid filler cap and dipstick. (Press the
llipstick into place and tum clockwise until
finger-tight.)
D. Run the engine, shutdown and recheck the
fluid
level.
A
WARNING:
Never
pull
out
the
dipstick
while
the
engine
Is
running.
Hot
fluid will
splash
from
the
dipstick
hole.
This
could
cause
severe
bums.
Fluid
Capacity
ApProximately 2.5 quarts (2.36liters) will
fill
most
transmissions
to
the fluid level
fill
mark on
the
dipstick.
Many variables have a direct relationship
to
the
fluid
capacity.
Additional fluid will be required
to
fill
the
fluid
cooler and the cooler lines. The angle of installation
will
make
a difference in the quantity of fluid
required
to
fill
the
transmission.
DIPSTICK----~~~'!!
MAKE
CERTAIN
THE
RUBBER
SEAL
IS
SCREWED
TIGHT
TO
THE
HANDLE
Oil
Temperature
FLUID
LEVEL
FULL
A maximum fluid temperature
of
190°F (88°C)
is
recom-
mended. Discontinue operation anytime the
fluid
temperature
exceeds
230°F
{110°C).
,
PRESSURE
GAUGE
An optional mechanical pressure gauge can
be
installed at
the
control panel to constantly monitor the pressure
of
the
transmission
fluid.
A normal reading at 2000 rpm in
forward
gear should indicate
95-
120
lb-in
2
(6.7-
8.4
kg-cm
2
)
artd
be
constant.
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
theJI.uid
level look for signs
of
water contamination
·(fluid will appear
as
strawberry cream).
Engines
!ft
Generators
47