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CATALOg TABLe OF CONTeNTS

geNeRAL INFORMATION

DeScrIpTIon....................................................................................................................... 1

chArAcTerSISTcS..............................................................................................................1

ApplIcATIonS...................................................................................................................... 1

GenerAl ADvISe................................................................................................................. 1

DIrecTIon of operATIon................................................................................................ 1

MAchIne InSTAllATIon..................................................................................................... 2

SewInG ThreAD................................................................................................................. 4

neeDleS & AwlS................................................................................................................. 4

ThreADInG The MAchIne................................................................................................. 5

ThreAD lUbrIcAnT & wAx............................................................................................... 6

bobbIn SeTUp...................................................................................................................... 6

coMMence SewInG........................................................................................................... 7

ADJUStMeNtS & SerVICING

coMMon ADJUSTMenTS.................................................................................................... 8

oIlInG & cleAnInG............................................................................................................. 8

preSSer-fooT ADJUSTMenT........................................................................................... 9

ThreAD lock.................................................................................................................... 10

ThreAD TenSIon.............................................................................................................. 10

STITch lenGTh................................................................................................................. 10

ThreAD GUIDe ADJUSTMenT.......................................................................................... 11

looper cAM ADJUSTMenT.............................................................................................. 11

neeDle & Awl AlIGnMenT.............................................................................................. 12

ShUTTle TIMInG (fIne)..................................................................................................... 13

TROUBLe ShOOTINg

TROUBLE SHOOTING......................................................................................................... 13

PARTS ChARTS

APPeNdIX

PARTS RECORD.................................................................................................................... A

LUBRICATION AND SERVICE RECORD...............................................................................B

NOTES................................................................................................................................... C

Since 1858

technical Support

1-800-327-9420

andall

UnIOn

lOck

stItch

Table of Contents

Содержание UNION Lockstitch

Страница 1: ...UNION Needle and Awl Lock Stitch Sewing Machine Serial Number _______________ Manufactured by Randall Leather Machinery Company 401 Irvine Street Yoakum Texas 77995 USA 1 800 327 9420 or 1 361 293 701...

Страница 2: ...mence Sewing 7 ADJUSTMENTS SERVICING Common ADJUSTMENTS 8 OILING CLEANING 8 PRESSER FOOT ADJUSTMENT 9 THREAD Lock 10 THREAD TENSION 10 STITCH LENGTH 10 THREAD Guide ADJUSTMENT 11 Looper Cam ADJUSTMENT...

Страница 3: ...wise if you are facing the wheel Use caution and give proper attention to the operation of your machine when sewing Keep your hands away from the needle and awl when the power is on and the machine is...

Страница 4: ...ghten the belt tension be lowering the motor with the adjustable motor bracket Lock the motor into postion with the bracket nuts once the fire tension is acheived Pedal Linkage Connect and adjust the...

Страница 5: ...wax pot up to the the machine casting and lock in place with the clamping nut Presser Foot Spring Place the upper bracket and spring on top of the machin head With the left hand compress the coil spr...

Страница 6: ...is sharp and does not spring or glance off the work when entering the work Synthetic Twisted Natural Cord Needle Size 138 3 cord 1 to 1 1 2 207 4 cord 1 1 2 to 2 277 5 cord 2 1 2 to 3 346 6 cord 3 to...

Страница 7: ...he threading wire UL 531 through the wax pot extension and pull the thread through 7 Fig 1 Turn the hand wheel to get access to the lock UL 145 Put the threader through the lock UL 145 grab the thread...

Страница 8: ...UL 291 over the bobbin and close the bobbin door Make sure that a length of thread is pulled out of the bobbin door between the spring and the door latch Removing the Bobbin Release the cover latch an...

Страница 9: ...consistent even stitch NOTE The machine may be in perfect adjustment and still fail to sew satisfactory if the operator is careless in handling the work or does not adjust the machine to accommodate...

Страница 10: ...tion of Common Adjustments Allowing that a machine is in good condition from a standpoint of wear and lost motion a quick check up of the essential settings can be made in the following order Check th...

Страница 11: ...rm UL 116 on the top left of the machine if the operator is sitting in front is turned with the 2 screws facing to the left of the machine To make the foot lift higher loosen the inside screw UL 117 a...

Страница 12: ...n obtained when the thread pulls out easily with light tension without excessive binding It is recommended to use less tension when working with threads made of natural fibers To give more tension on...

Страница 13: ...elay the thread by loosing the screw in the take up cam and moving the screw to the top The looper should hold the thread until it has descended into the material If not the thread would fall off the...

Страница 14: ...wl are not bent When the needle and awl are perfectly aligned the needle should comes up through the material without flexing or hitting the sides of the awl hole To see the alignment set a piece of p...

Страница 15: ...hat the set screws are both over the flat spots on the shaft which may require the removal of the set screws to locate which are 90 to each other Tighten one set screw then recheck the timing If this...

Страница 16: ...the needle when the needle is on the way down and level with the hook point At this position the hook is about to enter the loop When the Take Up UL 135 is at its highest position the point of the ne...

Страница 17: ...pointing straight down the thread looper UL 180 is just about to pick the thread Move the hand wheel until the take up is about to desend In this position the Thread Guide UL 165 takes the thread into...

Страница 18: ...tretch or excessive coiling especially near the end of a spool 4 Needle not casting off thread after shuttle picks up loop Check needle timing and its position in relation to the shuttle point 5 After...

Страница 19: ...ng lever is worn broken or adjusted improperly 2 Check the Presser Foot Bar Spring or weakness or break age 3 Check the lift of the presser foot bar There should be a 1 8 lift at time of feeding work...

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