CLASS
60
INSTRUCTION
BOOK
Many Merrow Machines have been known to run a year
and
longer with
out a single part being replaced or even an adjustment.
10.
The
Style
GOB
Machines
are
recommended to
run
at
twenty-five
hundred to three thousand stitches per minute according to conditions.
11.
For
the recommended speed of styles not enumerated above,
refer
to
description of the individual style in our catalogue.
Thread
Stand
12. Screw the thread stand to the table top back of machine with the left
end of the base far enough to the right to be clear of the goods which pass
back beyond the machine.
13. The thread, yarn or silk should be wound on cones or conical bobbins
which
should stand vertically, the tlyead
leading
up to the top of the thread
stand and
thence
diagonally
downward to the
machine.
14. Never run the thread, yarn or silk from cylinders or from two headed
spools—cones
are
best.
15. Use no needles or other parts not made expressly for the machine.
16. Keep the machine clean.
17.
Before re-assembling a machine,
after
having removed any of its
parts, be sure
that
every surface of every
part
is thoroughly clean and free
from
all
grit
and
lint and
that
each frictional
surface
is oiled.
18. Oil frequently, at least
four
times a day.
19.
These
machines
are
necessarily fitted very closely in
order
to attain
their very high speed and great durability, and therefore they need frequent
oiling, especially when new. Use best quality of lubricating oil. We do not
recommend
so-called
stainless
oil
for
the
purpose.
20.
After
continued
idleness
first
use
kerosene
oil.
21.
Parts
cannot be changed in
form
without liability to
injury.
The
Needle
22. Self-setting needles marked
"D",
used in all varieties of recent
Class 60
Machines,
are
of
the
following sizes,
viz:
No.
GOOD,
No.
GOD,
No.
OD,
No.
ID,
No. '2D. No.
2DF,
No.
2SD,
No.
3D,
No.
3SD,
No.
3SDF,
No.
4D,
No. oD
and
No.
8D, all
have
straight
shanks,
flattened at
one
side,
and
curved
blades, the No.
GGOD
being the finest.
23.
Use
No. 3D needle
for
general work
and
always when practicable.
24. Adjust the "D" needles with the end of the shank in contact with the
stop pin in the needle carrier.
25. Tighten the nut at the left of the upper part of the needle carrier
just
firmly
but not unduly to hold the needle in place.
26.
The
blade of
the
needle
must
not be too large
for
the
slot in the
needle plate.
If
a needle too large is once forced through the needle slot,
the latter is likely to be much injured.
See
"How
to order supplies" on page 4-
t
V
