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Needle Type
Short double groove, struck groove, ball eye, spotted,
130GS
government point, chromium plated.
Selection of proper needle size is determined by size of thread used. Thread should pass freely through the
needle eye in order to produce a good stitch formation.
Each needle has both a type and size number. The type number denotes the kind of shank, point, length,
groove, finish and other details. The size number, stamped on the needle shank, denotes largest diameter
of blade, measured midway between shank and eye. Collectively, type and size number represent the
complete symbol which is given on the label of all needles packaged and sold by UNION SPECIAL. See "STYLE
OF MACHINES" for the standard recommended needle type & size for your machine.
To have needle orders promptly and accurately filled, an empty package, a sample needle, or the type and
size number should be forwarded. Use the description on the label. A complete order would read: "1000
Needles, Type 130GS, Size 140/054".
The oil has been drained from the machine before shipping and the reservoirs must be filled before
beginning to operate. Use a straight mineral oil with a Saybolt viscosity of 90 to 125 seconds at 100°
Fahrenheit. Union Special Part No. 28604R.
Oil is filled at oil caps (A & D, Fig. 1). The level is checked at sight gauges (B) and (E). Maintain the oil level
between the red lines of the gauges.
The machine is equipped with a continuous running rotary driven oil pump. The action of the oil can be
observed through oil sight (A) and (D) in the front and back top covers.
When starting a new machine, filling the reservoirs or when beginning to operate a machine that has been
idle for some time, it may be necessary to prime the pump. To do this, remove the two plug screws (C). Apply
oil to these holes and operate machine until bubbling can be observed at the windows. Replace screws (C).
CAUTION: If oil does not bubble when machine is running, the circulating pump is inoperative.
Oil may be drained from the machine at two places, plug screw (F) located in the bottom of the cylinder
and plug screw (G) at the back of the main frame below the handwheel.
A convenient means for threading the looper has been provided. When loopers are at the left end of their
travel, press the knob (H, Fig. 1) and loopers will back out of position, leaving them easily accessible. Thread
the machine as illustrated in (Fig. 1). After threading, push loopers back into position.
NOTE: Instructions stating direction of location, such as right, left, front or rear of machine, are given
relative to operator's position at the machine.
operating direction; when viewed from the right end of machine.
Torque specifications given in this catalog are measured in inch-pounds or Newton-meters. All straps and
eccentrics must be tightened to 19-21 in. lbs. (2.1-2.3Nm) unless otherwise noted. All nuts, bolts, screws, etc.,
without torque specifications must be secured as tightly as possible, unless otherwise noted. Special torque
specifications for connecting rods, links, screws etc., are shown on the parts illustrations.
Description
Table I
NEEDLES
LUBRICATION
THREADING
ADJUSTING INSTRUCTIONS
TORQUE REQUIREMENTS
9
Sizes Available
080/032, 090/036, 100/040, 110/044, 125/049,
140/054, 150/060
The handwheel rotates counterclockwise, in
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