12
Operating Instructions 'for Cockshutt "30" Tractor
FRONT
INTERMEDIATE
AND
PULLEY
HOUSING
Use a
few
drops of engine oil occasionally on
the
linkages or .control rod.connections such as clutch
rod,
brake
linkages,
throttle
linkag
es, etc.
22.
Front
Intermediate
Housing
Drain
Plug
.
23. Oil
Filler
Plug
.
24. Oil
Drain
Plug
.
LIVE
POWER
TAKE
-
OFF
(Extra)
25. Oil
Filler
Plug
.
26. Oil
Drain
Plug
.
MISCELLANE
OUS
PARTS
I
Use approved
lubricant
SAE
90. Check
lubricant
level once a month
and
bring
level up to oil filler
plug
(22).
Capacity - 1%,
Imperial
gallons.
1
Use approved
lubricant
SAE
90. Check level once
a
month
whether
in use
or
not. Change oil every
1000
hours
of power
take-off
use. Capacity
8%
Imperial
pints.
~
EN
GINE LUBRICATION
ENGINE
OILING
SYS
TEM
-
Functioning
as
it
does to
pro
vide lubrication
for
all
the
moving
parts
of
the
engine which
operates
under
different
conditions of. h
eat
and
pressur
e,
it
is necessary
that
a good
grade
of engine oil.be used.
It
is also impor-
tant
that
the
oil be
kept
CLEAN
and
in a CLOSED
CLEAN
CONTAINER
"
. . • . i
DESCRIPTION -
Pr
essure is
furnished
by a
gear
type
pump
which
dra
ws
the
oil
from
the
crankcase
through
a screen.
From
the
pump
it goes
through
passages drilled in
the
block to
the
main
and
connecting rod bearings.
The
connecting rods
are
rifle
drilled
for
satisfactory
wrist
pin lubrication. Oil is
meter
ed to th e rocker
arm
shaft
for
satisfa
ctor
y rocker
arm
lubrication
and
to
th
e rock
er
arm
valve contact faces.
The
camshaft
is oiled by splash
and
by oil
draining
from
th
e head
through
cored
passages in
the
block.
The
governor,
governor
shaft
,
and
timiri
gg
ear
s
ar
e liber-
ally bathed in oil to
prevent
undue w
ear
and
to
wash
off
accumulated sludge and
moisture.
Part
of
the
oil is by-passed
through
the
filter. (See
pag
e 17
for
servic-
ing.
PRESSURE
CONTROL - A
pr
essur
e reli ef valve is located
at
the
front
of the oil
gall
ery
on
the
left
side of
the
block
and
should
not
requir
e
att
ention.
It
is danger-
ous to
tighten
up a
pressure
valve to
correct
a
drop
in
pr
e
ssur
e, as normally such a
drop
is caused by some '
bearing
being
worn. The oil
pr
essure as i
ndicat
ed on·t he
gaug
e should be
from
20 to 25 pounds
at
full
throttl
e
and
8 to 10 pounds
at
idle
speed. ; '
TYPE
OF
OIL
- Above 32
0
F.,
SAE
30 should be used,
from
- 10
0
F. to 32
0
F. use
SAE
20W,
and
below 10
0
F., use
SAE
lOW. Always use top quality oil..
CAUTION:
For
a new engine use
SAE
20 above 32
0
F.
for
the
first
season of operation.
WHEN
TO
CHANGE
AND ADD OIL -
It
is a good
practi
ce to change
th
e oil eve
ry
60
hours
and
if
running
in cold w
eather
the
change should he made more
oft
en.
The
oil capacity is 4%
Imperial
quarts.
Always look
at
the
oil
pr
essur
e
gau
ge immed-
iat
elv
after
starting
the
engine.
The
oil level should be checked
at
lea
st
once a day
and
if
at,
or
below,
the
low
mark
on
the
dipstick, some should be added.
QUALITY
OF
OIL
-
The
best
insuranc
e of good
qualitv
is to
buy
from
a r
eput
able
manufactur
er. Oils should be
fr
ee
from
foreign substances such as scans. resins,
acids, etc.,
and
should
not
corrode
the
engine surfaces.
The
newer, so-called heavv-
dut
y oils
are
satisfactory
hut
if
an
engine
has
heen
run
on oth
er
tvp
es of oils do
not
add heavy-duty oil
without
thoroughlv
flushing
'
the
crankcase by ari ap
pr
oved
motor
flush svstem.
Even
after
this
is done. t.he new heavy-duty oil should be
changed
at
10
hour
s,
then
at
25,
and
then
at
60.
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