THE
MERROW
MACHINE
COMPANY
LUBRICATION
14. General: The lubrication system is entirely automatic, feeding
oil
to all bearing surfaces
without
the
use
of wicks.
The
path of
the
oil
as
it circulates through
the
machine is
described
as
follows: Two
Oil
Pump Plungers
are
operated from eccentric grooves in
the
main shafts. The upper shaft pump draws
oil
from
the
main reservoir
and
forces itthrough
the
Oil Bubbler Pipe to
the
Oil Bubbler Pipe Cap.
The
oil
then drains down through holes
to
the
Upper Shaft Oil Collector
and
the
correct amount of oil is fed into
the
Upper Shaft
Assembly. Inside
the
Upper Shaft
the
oil is distributed through
several
successive
oil holes
and
grooves
to
the
bearing
surfaces
of
the
main shafts on
the
left
end
of
the
machine,
the
Needle Carrier Assembly,
the
Upper Cutter Carrier Assembly,
and
the
Feed
Mechanism.
Some
of
the
oil not fed into
the
Upper Shaft is forced along
the
outside
of
the
Upper
Shaft,
down
the
face
of
the
Cam
Boss,
and
through
holes
in
the
Main
Cams
to
lubricate
the
Cam
Rolls
and
the
Frame
Cap
bearings.
The
Needle
Bearing for
the
Lower
Shaft
is oiled from
the
overflow oil from
the
lower
shaft
pump.
All
the
oil in
the
machine
drains
down
through
the
Oil Filter into
the
Oil Filter Support
and
is
pumped
from this support by
the
lower shaft
pump
back
into
the
oil reservoir.
Note: A special oiling Frame
M-1-A-11
(MG)
or M-1-5
(M)
is available on
request
for high
needle
time operations. This frame provides additional oil to
the
feed mechanism.
15. Oil is filled through a hole under
the
Cap
Screw of
the
Oil
Filler Assembly into
the
main
reservoir. About 8
ounces
of a high grade turbine
oil
is recommended. (Refer to
the
Oil
List
page
24) To drain
the
oil,
remove the machine from the Machine Mounting Assembly
and
extend
the
hand
wheel
end
of
the
machine
over
the
end
of
the
table.
After providing
a
means
of catching
the
oil,
unscrew the
Oil
Drain Screw (#11 3/8) several turns.
16.
The
followino
precautions
are
recommended:
a.) Never allow
the
oil level to
go
below
the
"E"
line on the
Oil
Gage, b.) Occasionally clean the
lint
around the Feed Dogs and
from
behind
the
Dust Shield and Upper Fabric Guard. (Do Not Use
Compressed
Air)
c.) Daily
clean
the
lintfrom
the
drain slots around
the
L.C. Holder Support Assembly, d.) Clean
the
Oil
Filter about once a year (See
Below).
Replace
filter
after four cleanings, e.) Clean
screen
on
the
Oil Filler Assembly
if
filling
the
machine
becomes
difficult
(See
Below).
17. To
clean
the
Oil Filter:
remove
the
three
screws
(#83 3/16) in
the
Oil Filter
Support
and
lift
the
machine
from this support; remove
the
Oil Filter
and
clean with
compressed
air or
solvent.
When
using
compressed
air to clean
the
filter, blow
the
air in
the
reverse
direction
of
the
oil flow - from bottom to
the
top
of
the
Oil Filter. For
best
results
remove
and
replace
the
three
gaskets
on
the
Oil
Filter Support. (O.F.
Gasket
M-275-2, O.F.S.
Gasket
M-275-1,
and
O.F.S. Line Gasket M-275-3) Carefully locate
the
new
gaskets
intheir proper positions,
and
install
the
cleaned
filter (flat
side
down). Lower
the
machine
straight down
onto
the
Oil
Filter
Support
Assembly, being careful not to disturb
the
alignment of
the
gaskets.
Install
and
tighten
the
three
screws
(#83 3/16).
18. To
clean
the
screen
on
the
Oil Filler Assembly:
unscrew
the
entire
assembly
from
the
machine,
remove
the
cap
screw,
and
clean
the
filler
screen
with
compressed
air or solvent.
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