Installation manual
BORG 
WARNER 
VELVET 
DRIVE 
TRANSMISSION 
n 
n 
FORWARD 
NEUTRAl 
REVERSE 
, 
TRANSMISSION 
ACTUATING 
LEVER 
POSITIONS 
DAILY 
OPERATION 
o 
Check 
the transmission 
fluid. 
o 
Visually 
check the gear shift 
linkage 
and 
transmission. 
o  Start the engine in 
neutral. 
Allow 
a 
few 
minutes 
at 
idle 
for 
the 
fluid 
to 
warm. 
NOTE: 
Too 
Iowan 
idle 
speed 
will 
produce 
a 
chilltering 
noise 
from 
the 
transmission 
gear 
and 
damper 
plate. 
In 
such 
cases 
the 
idle 
speed 
should 
be 
increased. 
o Shift into 
gear. 
A 
CAUTION: 
Shifting 
gears 
above 
1000 
rpm 
can 
cause 
damage 
to 
the 
engine 
damper 
plate. 
Pulling 
the 
throttle 
back 
to 
idle 
when 
shifting 
gears 
will 
save 
wear 
on 
the 
transmission 
and 
the 
damper 
plate. 
INSPECTION 
o 
Visually 
check for 
oil 
leaks 
at 
the 
hydraulic connections. 
Check 
for wear 
on 
the hydraulic lines and replace if 
worn. 
o Lubricate 
the 
detent ball and shift cable attachments. 
o  Inspect the 
shift 
linkage. 
o  Inspect the transmission 
bolts; 
retorque if 
necessary. 
A 
CAUTION: 
Clutch 
failure 
will 
occur 
if 
the 
transmis-
sion 
shift 
lever 
does 
not 
fully 
engage 
the 
detent 
ball 
positions. 
CHANGING 
THE 
TRANSMISSION 
FLUID 
After the initial 50 
hour 
change, 
the 
transmission 
fluid 
should 
be 
changed at 
every 
300 operating 
hours 
thereafter 
or 
at 
win-
ter 
haul-out. 
However, 
the 
fluid 
must 
be 
changed whenever it 
becomes 
contaminated, 
changes 
color, 
or 
smells 
rancid. 
o 
Remove 
the 
oil 
filler 
cap 
and 
dipstick. 
o 
Remove 
the 
oil 
cooler 
return 
line and 
allow 
the 
oil 
to 
drain 
into 
a 
container. 
o Reconnect 
the 
oil 
cooler return 
line. 
o 
Use 
a 
suction 
pump 
to 
remove the transmission oil 
through the 
filler 
cap/dipstick 
hole. 
o 
Clean 
off the 
transmission 
and 
properly 
dispose 
of 
the 
used 
fluid. 
o 
Refill 
the 
transmission 
with 
DEXTRON 
III 
ATF. 
The 
r 
quantity 
will 
vary 
depending 
on 
the transmission 
model 
and 
the 
installation 
angle. 
Pill 
through 
the 
dipstick 
hole. 
,0 
Check 
the 
dipstick 
for 
the 
proper 
fluid 
level. 
o 
Replace 
the 
oil 
filler 
cap 
and 
dipstick. 
(press the 
dipstick 
into 
place and 
turn 
clockwise 
until 
finger-tight.) 
o 
Run 
the 
engine, 
shutdown 
and 
recheck 
the 
fluid 
level. 
A 
WARNING: 
Never 
pull 
out 
the 
dipstick 
while 
the 
engine 
is 
running. 
Hot 
"uld 
will 
splash 
from 
the 
dipstick 
hole. 
This 
could 
cause 
severe 
burns. 
Oil 
Capacity 
Approximately 
2.5 
quarts 
(2.36 
liters} 
will 
fill 
most transmis-
sions 
to 
the 
oil 
level 
fill 
mark 
on 
the 
dipstick. 
Many 
variables 
have 
a direct 
relationship 
to 
the 
oil 
capacity. 
Additional 
oil 
will 
be 
required 
to 
fill 
the 
oil 
cooler and 
the 
cooler lines. 
The 
angle 
of installation 
will 
make 
a 
difference 
in 
the quantity 
of 
' 
oil 
required 
to 
fill 
the 
transmission. 
D1PSTICK'-----:i 
MAKE 
CERTAIN 
THE 
RUBBER 
SEAL 
IS 
SCREWED 
TIGHT 
TO'THE 
HANDLE 
Oil 
Temperature 
FLUID 
LEVEL 
Amaxirnum 
oil 
temperature 
of 190
0
P 
(88°C) 
is 
recom-
mended. 
Discontinue 
operation 
anytime 
sump 
oil 
tempera-
ture 
exceeds 230
0
P (110'e). 
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 Ib-in' 
(6.7 
-
8.4 
kg-cm') 
and 
be 
constant. 
Engines & Generators 
44 










