U S Blindstitch 1099-CS-l-HH, B1099-CS-1-HH, F1099-CS-1-HH, S1099-CS-1-HH, 1099-T User Manual

...

U.S.

BUND

STITCH

EXPRESS

IMGHINE

STREET

SKYLINE

CABLE

ADDRESS:"BLiNSTlT

1099

COVERING STANDARD

1099-CS-l-HH B1099-CS-1-HH F1099-CS-1-HH S1099-CS-1-HH

DRIVE

TELEPHONE:

1099-PBW-I

CORP.

PLAINVIEW

SERIES

THE

SUB

N.V.

11803

516-433-4350

NEW

YORK"

FOLLOWING CLASSES;

1099-T 1099-T-l

1099-WB 1099-WB-l

EST.1925

MAINTENANCE

PARTS

1979•U.S.

CATALOG

BLIND

STITCH

MACHINE

CORP.

ni-MAINTENANCE

FOR

INTRODUCTION

1118,1099

Replacing

the

INSTRUCTIONS

& 1108

Looper

SERIES

B. Replacing

C. Replacing

D. Replacing

the

Needle

Shoe

Feeder

Guide

MAINTENANCE

INTRODUCTION

INSTRUCTIONS

All U.S. BLIND STITCH machines are designed for long life and trouble-free performance. When

installed

and

lubricated

accordance

with

the

INSTALLATION

AND

OPERATING

INSTRUC

TIONS, only the minimum maintenance normally associated with industrial sewing machines will be.required. These maintenance requirements will generally be confined to the four locations des

cribed below, at which wear may be expected

worn part may be readily replaced by following the appropriate instructions. tion, and to insure satisfactory service, it is essential

after

extended

that

use. When such wear does occur, the

For

easeofinstalla

only genuine U.S. BLIND STITCH parts

and needles are used. They are the only parts designed specifically for the machine, with the built-

in long life and excellent wearing characteristics typicalofthe U. S. BLIND STITCH machine.

REPLACING

THE

LOOPER

1. Should it become necessary to replace the looper (item

loosen the looper clamp screw (item

looper. Becauseofthe

precise fitofthe

necessary to exert a moderate

"A"

in Figure 6) and remove the old

looper

in the

amountofforce to pull the looper

"B"

looper

in Figure 6),

rod

it may be

out.

Insert

the new looperinto the endofthe rod as far as it will go before bottoming on

the

looper

shoulder.

2. Any time a looper is moved or changed, recheck the looper timing and reset if necessary. Proper looper timing is absolutely essential for correct stitch

formation. As described in detail below, a properly timed

over the needle in the correct position to pick up

the

chain-off pin, feeder, looper slot, and needle. The first check

the looper is at the position where the looper picks the thread loop

looper

will pass

loop, and also clear

point

for timing

off

the

needle during the needle return stroke. Referring to Figure 7, (Point "C"),

the long prongofthe looper should pass over and

needle, approximately

the

same time, the

about

chain-off

1/64"

(.406mm)

(item

3/32"

short

prongofthe

clearance, and

"D"

in Figure 7).

(2.4mm)

behind

looper should pass over

must

just

clear the scarfofthe

the

endofthe needle eye. At

be so

set

that

it also clears the

the

needle with

3. To adjust the looper so

mayberotated

shouldbemade

and

the

looper

out,

anddonot

amount

timing, it will be necessarytoturn

This

in Figure 6). Figure

If, for

rod distance

the

inches

minor

the

adjustment

may

6).

ordertoget

any

has

been

from

rear faceofthe

(104mm)

adjustment

position. Note

variations

with

bottomed

attempttoforce

travel

be accomplished by loosening

The

It will

normally

the

reason,

disturbedbya large

the

(refer to Figure 6).Ifthe

that

maybeexpected

that

within

the

available.

describedinparagraph

rodisthen

looper

the

rod

centerofthe

looper

will be

this dimension is merely a guidetoassist in setting a

the timing checks

its

clampbya

looper

against

clamp

freetoturninthe

be necessarytomake

into

the

limited

screw

its

shoulder.

the

loopertoturn

3 is

the

looper

with

correct

(item

insufficienttoprovide

looper

rotational

has been removedorthe

amount,itmayberesetbynoting

rod

looper

ball (item

rod

fork

"G"

rod is

requiredtobring

from

machinetomachine.

the

out

as noted in paragraph 2,

amount.

not

rod

looper

only

This

adjustment

"A"

in Figure6)loosened,

move

the

looperinor

beyond

(item

rod

position

the

limited

"E"

in Figure6)itself.

clamp screw (item

rod

fork

(item

a very small

for

basic settingofthe

(item

"F"

in Figure6)to

the

"D"

adjustment

proper

looper

that

in Figure 6) is normally 4 &

settothis dimension

looper

into

the

correct

then

timing

correct

"C*

timing.

the

3/32

only

rod

and

5. If,

after

too

lowortoo

the two

slotofthe

raiseorlower

to see

ening

tained

handle

completing the above adjustments, it is found

high,itwill be necessarytoadjust

set

screws (item

eccentric

the

whether

the

by lightly

ofascrewdriver.

the

eccentric

tapping

looperasrequired.

stud

looper

block

"A"

in Figure 7). Place a wide blade screwdriver in the

(item

"B"

in Figure 7) and, using a slight

Once

the

proper

mustbemovedtothe

set

screws.Ifsuchamovementisrequired,itmaybeob

the

eccentric

blockinthe

that

the

eccentric stud.

height

leftorto

correct

the

looperiseither

turning

is established,

the

right

direction

First

loosen

motion,

check

priortoretight-

with

the

FIGURE

Once

the

looperistimed

thru 5 above,slowly turn the handwheel in a direction awayfrom the operator,

untilthe

inthe

this

until

looper

approaches

presserfoot.Atthis

edge.

Ifit

does

the

interferenceiseliminated.

not

with

point

clear,

respect

the

adjust

edge

make

to the

of the

sure

the

needleasoutlinedinparagraphs

looper

the

eccentric

slot.

small

(Point

prong

"C" in

of the

looper

blockasoutlinedinparagraph

Figure

clears

6A.Iftiming

adjustment.Iflooper

guideon opposite position, the looper sweep is too short.

If looper on pickup stroke, istoo far to right of chain off pin and too closeto

needle rest at leftofpresserfoot, the looper sweep is too wide.

For adjustment, refer to insert illustration (Figure 6). To widen looper sweep,

flex or bend looper crank in directionofarrow

To shorten looper

Both adjustments should be gradual and sweep checked frequently.

7. Continue turning the handwheel away from the operator until the point of the

needle starts to

in Figure 8). If the needlestrikes the crotch of the looper, the looper has general

ly beenset too far forward. Checkto seeif the looperhas beeninserted into the clamp

isstopped on the clamp. If this check issatisfactory,recheck the distancefrom the center of the looperrod fork pin to the rearface of the looper rod ball. Refer

to paragraph 4 and reset if necessary. If neitherofthe above two measures cor

rects the problem, it is possible that the needle levermay be set too low and

required

oflooper still

enter

asfar asit

adjustment.

proves

istoo

.sweep,

the area in between the looper prongs. (Refer to Point

will

go. It shouldbe inserteduntil the shoulder on the looper

difficult, its

closetochain

flex or bend looper crank in direction of arrow

possible

that

offpinand

"H".

looper

also,

sweep

too

closetoneedle

required

"J".

"D"

FIGURE

Once

clearanceisestablished

continue

passes

difficultyisexperiencedatthis

the

turning the handwheel away from the

between

the

adjustmentstothe

If this is done, recheck

lished

After the

looper

("F"),

loop.

REPLACING

lock

After

which

all

will satisfy allofthe

the

necessary

nut

and

recheck

should now clear the chain-off pin

needle,

considerable

THE

and

NEEDLE

looper

pass over

service,itmaybeexpected

between

prongs, clearing

the

adjustments

all

the

adjustment

the

needleinthe

GUIDE

the

needle

both

point,itmay

eccentric

points

clearance

have

blockorthe

to insure

conditions.

been

points.

("D"),

and

the

looper

operator

the

long

until

and

be necessary to

looper

that

a position is estab

made,

tighten

ReferringtoFigure 9,

feeder

correct

that

("E"),

positiontopickupthe

the

wearing

the

all

needle will cause a sharp edged groove to form on the needle guide (item

Figure

This happens

ed as a readily replaceable wear

the

9).

condition

the

action

guide

the

can cause

should

needle.

thread

breakage

be replaced.

plate

and

uneven

The

needle guide was specifically design

penetration.

to prevent damage to the presserfoot from

crotch,

the needle

short

prong.

modify

rod

set

looper

actionofthe

some

length.

screws

slot

When

and

the

"G"

this

2. Loosen the needle guide attaching screw (item worn needle guide. Clear

out

any

lint or dirt

"A"

in Figure 9) and remove the

that

may have accumulated

the old guide and insert the new guide. Insure that the new guide is seated flush

with

the

top

and

sideofthe

presserfoot

and

then

retighten

the

attaching

Slowly turn the handwheel in the direction away from the operator and check

insure

ference has

REPLACING

1. The shoe, (item not

that

the

new

been

THE

guide fits

introduced

SHOE

"E"

in Figure 8), also known as a cloth retainer, normally will

properly

between

the

under

guide

the

and

needle the

looper.

and

thatnointer

required replacement. However, in the eventofwear due to the particular

fabrics being used, or if the shoe or spring suffers any damage, they may be

readily

replaced.

2. The first step is to remove the complete front guide assembly by unscrewing the

front guide holder attaching screw (item

pin and the shoe eccentric barrel lock screws, (item

"A"

in Figure 8). Next loosen the shoe

"B"

Figure 8), and slide

the shoe pin (item "F")» shoe and retaining spring (item "G"). Before removing these components it is advisable to note the manner in which the spring is assem

bledsothatitmaybereinstalledinthe

same

way.

under

screw.

out

FIGURE

3. When replacing an old shoe, make sure that the replacement shoe properly fits the

pin without binding and without excessivelooseness. In the event that the pin has worn and does not fit the new shoe properly, it should be replaced at the same time

as the shoe-pin.After replacingthe shoe, shoe pin springinto shoe eccentric barrel, re-

tighten screws (item

is linedupwith the

openingofthe

"B"

the

centerofthe

presserfoot.

Figure 8), and check to insure

rib. Also insure

that

the

that

shoe

the

centerofthe

clears

both

shoe

sides

4. In and out position of shoeshould now be checked. For lightfabrics, shoeshould

be as close to needle as possible. For heavy fabrics with seam, shoe should be set

back

as far as possible from needle. To move shoe in

(item

"I"

screws,

Figure

(item

8). After the correct location isestablished, be sure to tighten

"B"

Figure 8).

and

out

turn

eccentric barrel

4A. An additionalshoe adjustment isalsopossible. The height of the shoe can now be

controlled, (item *'H"in Figure8). This is a tapered pin and position can be ad

justed so

concerned.

downon some

that

the shoe, whenever required, can be controlled as far as elevation is

moving

fabrics

the taperedpin in or out the shoe can be kept

whichrequire little, if any shoe pressure. By

from

having

pressing

this

control, it sometimes willaid in penetration of difficult fabrics. The normal posi

tionofthe shoe, when set properly on most fabrics, is that the shoe willshow move

ment

on the penetration cycle on one plyoffabric.

REPLACING

THE

CHAIN

OFF

1. After considerableservice, it may become necessary to replacethe chain off

pin,

(Item

"D"

in Figure 7).

2. Remove the chain off pin attaching screwand remove the chain off pin, clean

out

any lint or dirt that may have accumulated. Attach the new chain

off

using the screw previously removed. Insure that the chain

the

side and forward edge

slot in the presserfoot, and then tighten the screw.

pin is against the

off

pin,

REPLACING

THE

FEEDER

1. In the event that the machine

work, a worn feederis frequently found to be the cause.After considerableservice,

especially

dull, and the feeder should be replaced. In order to remove the old feeder, remove the front feeder attaching screw (item

attaching screw (item

place. Insert the new feeder under the rear screwand replace the front screw.

2. Before tightening the attaching screwscheck to see that the feeder is set to the proper depth. Referring to Figure 10 this should be approximately 1/32" (.795mm)

belowand parallel to the bottom of the presserfoot for all lightand

fabrics. For heavy fabrics, the setting should be approximately 1/16" (1.59mm)

below and parallel to the bottomofthe presserfoot. These dimensions are intended

as guidesand may be modified as required by the specific fabrics. Once the proper

depth is established, rotate the handwheel slowlyin a direction away from the oper

ator

and also clears attaching screws (Figure 9, Items

withcertainhard

"C"

and check to insure that the feeder clears the looper (see Figure 9, Point

both

sidesofthe feeder slot in the presserfoot. Firmly tighten feeder

develops

fabrics,

in Figure 9). The old feeder may then be slid

difficulty by

the

feeder

"B"

in Figure 9) and loosen the rear feeder

"B"&"C")

failing

teeth

have

before resuming sewing.

to properly

a tendency to

medium

feed

the

become

out

weight

"H")

FIGURE

+ 23 hidden pages

U S Blindstitch 1099-CS-l-HH, B1099-CS-1-HH, F1099-CS-1-HH, S1099-CS-1-HH, 1099-T User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual