CONSEW 3421UX5-1 Operating Instruction

OPERATING

INSTRUCTIONS

3421UX5-1

400 VETERANS BLVD, CARLSTADT, NJ 07072

CONTENTS

DESCRIPTION ........................... 3 OPERATOR INFORMATION ......... 5-8

LUBRICATION ........................... 5

INSTALLATION……..... .......... 4 ADJUSTMENT ....................................... 8-17

INDEX

Description of Machine ............ ..3

General Characteristics………..3

Special Features……………….3

Feed Bar, Height........................12

Feed Dog, Centralizing…….... 12

Height………………………. 12

Lengthwise Setting………….. 12

Sidewise Setting……………...12

Timing……………………….13

Feed Roll, Pressure………….. ..9

Installation……………………4

Loop Deflector………………..13

Looper, Positioning………..... 14

Lengthwise Setting…………..14

Sidewise Setting…………….. 14

Timing………………………. 15

Lubrication…………………....5

Needles……………………………….6

Setting………………………………. ..6

Needle Bar, Height……………….….14

Needle Bar, Position………………....13

Needle Guard………………………..15

Presser Bar, Height…………………..11

Presser Foot, Pressure ......................... 8, 9

Speed ......................................................... .5

Stitch Length…………………………… 10

Spreader, Positioning…………………....16

Lengthwise Setting……………….......16

Sidewise and Height Setting…………......16

Take-up, Adjustment………………...17

Looper Thread……………………….17

Needle Thread……………………….17

Tension……………………………….8

Releaser……………………………..17

Arm Shaft……………………..5

Bed Shaft……………………...5
Other Points…………………..5

Threading…………………………….7

Upper………………………………...7

Lower………………………………...7

DESCRIPTION

Consew model 3421UX5-1 is a high speed, compound
feed, two thread chainstitch machines designed for general
stitching operations on materials of medium and heavy
weight.

These machines are available for single and multiple

stitching operations such as seaming, binding, welting, lap seam
felling, etc. They perform outstanding work on trousers, work
clothing, automotive upholstery, tents, tarpaulins, seat covers
and a variety of other products.

General Characteristics

-Belt driven arm shaft mounted in front and rear ball bearings.

-Belt driven bed shaft.

-Semi-automatic lubricating system with large capacity oil
reservoir in upper and lower shafts lubricates all principal
bearings.

-Presser foot is raised by a treadle operated foot lifter which
also releases the needle thread tension.

-Space at right of needle, 10 inches.

INSTALLATION

.?

OIL P A N

Fig. 2

r

Fig. 3
Fig. 4

OIL DRAIN JAR

FOOT LIFTER
LEVER

Assemble oil pan to hangers. Insert as­sembled oil pan into machine cut-out of table
placing four rubber bushings in hanger holes
as shown in Fig. 2. Attach oil drain jar to oil
pan as shown in Fig. 3.

Place machine on oil pan assembly with the
four bed pins passing through the four rubber
bushings shown in Fig. 2.

Connect foot lifter treadle to foot lifter
lever, Fig. 4, at back of machine by chain fur­nished for this purpose.

LUBRICATION

Consew model 3421UX5-1 has a semi-automatic
lubricating system comprising a hollow arm shaft
and a hollow bed shaft which act as oil reservoirs.
The oil is distributed to all of the principal bearings
by centrifugal force through small jets in the shafts
when the machine is in operation. Provision is also
made for hand lubricating other movable parts
which are not lubricated from the reservoirs.

BEFORE STARTING machine, the machine

must be oiled as instructed. Failure to do this will
result in damage to the machine.

Pressure Oil Can, furnished with the ma­chine, is to be used to oil all points requiring
lubrication.

TO OIL ARM SHAFT

To fill arm shaft reservoir, insert spout of
pressure oil can excluded in hole, Fig.5, and
inject 1 shot of oil into shaft twice daily.

TO OIL BED SHAFT

To fill bed shaft reservoir, push spring cover, Fig.
6, to the left, insert spout of pressure oil can into
hole and inject 1 shot of oil into shaft twice daily.
Close oil hole spring cover.

NOTE: Bed shaft may also be oiled from
right hand end of machine.

OTHER OILING POINTS

Apply oil to all work plate and arm oil holes,
needle bar bearings and connections, needle bar
rock frame bearings, looper rocker sleeve and
presser lifting mechanism.

SPEED

Maximum speed for 32421UX5-1 is 4000 stitches

per minute.

It is advisable to operate new machines at a speed
of 500 stitches less than maximum for the first
100 hours of operation.

Maximum efficient speed is determined
upon the nature of the operation, the ability of
the operator and the type of material being sewn.

CAUTION: For machines in continuous

use, all oiling points must be oiled daily. Occasionally
oil tension release mechanism and looper pull-out
rack.

NEEDLES

MOVE TO
SCARF OF

SCARF OF

Fig. 7

HIGHEST
POINT

LOOSEN
SCREW

For heavier weight material, needle 62 x59
may also be used. In this case, the needle bar
must be adjusted as instructed on page 13.

Use 62 x 59 for medium heavy work or 62 x 57 for
medium light work

The size of the needle to be used is determined
by the size of the thread which must pass freely
through the eye of the needle.

Orders for needles should specify quantity
required, size number and catalog number.

To Set the Needle

NEEDLE
TOWARD LEFT

MOVE TO
HIGHEST
POINT

LOOSEN
SCREWS

Turn machine pulley over toward the opera-

tor until the needle bar is at its highest point, as
shown in Fig. 7.

Loosen needle set screw on single needle
machines or needle clamping screws on mul­tiple needle machines, as shown in Fig. 7.

Insert needle into needle bar or clamp as far

as it will go making certain that the scarf of

each needle faces toward the left, as shown in

Fig. 7.

THREAD

Either left twist or right twist thread may be
used in the needles and loopers.

Rough or uneven thread, or thread which
passes through the needle eye with difficulty
will interfere with successful operation of the
machine.

TOWARD
LEFT