Bonis A-16, -18, -21

PARTS ASSEMBLIES FOR Bonis Models: A-21, A-18, A-16

CAUTION: Order by part number only. When ordering parts, kindly state Serial and Model Numbers of Machine.

The Serial Number is stamped on the left top edge of main frame. The Model Number is printed on name plate on top cover.

MAIN FRAME ASSEMBLY

Part No.

Description

1-A 18-F 18-FB. 18-FFB. 18-R 19. 21 22 24. 29-BT. 30-BT 105 107. 107-B.

Mainframe Front Feed Disc (Sold only as com~ete unit)

Front Feed Disc with Ball Bealings (Sold only as acomplete 1.mrt) Flat Front Feed Discwith Ball Bearings (Sold only as acomplete un~) Rear Feed DISC Feed Disc Arm, Complete w1th Pins Pressure Lever Pressure Lever Chain Belt Wheel (For "-AD" Models there 1s also a Be~ Wheel, Part No. 24-A, on left side)

Main Shaft Bushing, Long, (Right Side) Ma1n ShafiBushlflQ, Short, (lef1S1de) Main Shaft {For·'-RD" Models rt is Part No. 105-R) Disc Stud Front Disc Stud !Of Ball Bearings Top Arm Pin BottomArm Pin Needle BarTens1on Post NeedleGuard Work Guide (installed on Model A-16 only) Tension Disc, 2req'd TopCoverTens1on Spnng

108-A 108-B 116 121-A 127 129 133 157 . 158 201-L 201-S 202 . 203 206 213 221 224 226 230 245 . 246 247 248 249 250 259 .

Pressure lever Spring Pressure Lever Shaft

Feed Gear Shaft Screw, 2req'd Feed GearShaf!Screw, 2req'd Rear Feed Disc SetScrew, 2req'd Belt Wheel Screw, 2pes. req'd Ann P1nch Screw Tension Post Front Cover Screws, 2 req'd Feed Shaft Nut, 2req'd Tens1onNut Work Guide Set Screw Shielded Ball Bearing, 2req'd D1scBearing Rollers, 12req'd Spacer Tension Post Set Screw Th1ckSpacer Pressure AdJusting Nut Pressure Ad1ust1ng Screw Top Cover Hinge Screw, 6 req'd Oil Cup, 2req'd Feed Gear Plate Screw Top Cover Lock Spring Top Cover Hinge, 2req'd Top Cover Hinge Stop, 2req'd

405 409 426 610 611 612

NeedleGuard Screw Needle Bar Bush1ng Adjustable Seam Contrul Guide tor Aal Feed IJB:s Adjustable SeamControl Guide Onstaled on ModelsA-21 &A-18on,) Front Cover OilerTop Cover Oil Filler Cap Top Cover Thread Guide

614 . 617-A 621-F 621-J

704 903 908 928

'Spec1fy Model number- All A machines have 32 teeth per inch. Wheel thickness vanes: A-21 3/64" A-16 3/32" A-18 i/16"

From the Library of Superior Sewing Machine & Supply LLC

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NEW-STYLE F FEED DISC ASS

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OPTIONAL FLAT FRONT FEED DISC ASSEMBLY FOR "-RD" MODELS

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OPTIONAL SEAM CONTROL GUIDE FOR FLAT FEED DISC

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P4RTC:: 4

LOOPER FRAME ASSEMBLY

Part No.

Description

27 114-A

Ba:ance Weight Looper Hexagon Looper Chuck Shet: Looper Cam Roller Rocker Packmg. (Speclfylhtckness .004. 006. 010. 020) Looper Frame Looper Frame. Fttted CompleteWtth All Necessary Parts OsctllatmgCam Eccer~tric Set Screw, 4 Req· e1 FulcrumPtn Looper Frame Rocker Screw 2Req d Looper Cam Roller Stud Looper Cam Roller Stud Set Screw Balance Weoght Screw. 2Req d Fulcrum Ptn Nut

125 126 143 144-A 144-A-FC 149-A

202 204 206 207 208 '" 225 410 411-A

Front Rocker. Complelfl looper Frame Eccentnc Front Rocker Nut LooperOscillatmg Arm Looper Shall looper OSCillating Arm Pmch Screw. 2Req d

412 609 624 639

From the Library of Superior Sewing Machine & Supply LLC

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144A-C

17

411-A

1

BONI 111 West 2

lOOPER FRAME ASSEMBlY

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GEAR & FEED ASSEMBLY

Part No.

Description

----

----.

13 14 15

Feed Eccentnc Feed Cor~nect1on Feed lever Only

15-FC

Feed Lever. F•ttedComplete

17

FeedGear(Small)

106 109 110 111 112 123 132 202 209 211 228 416 417 419 420 421 423 424 425 426 427 433 628 629 630

DISC Shalt

Stitch Regulating Stud Stitch Regulating StuCJ Nut Sl1ICh Regulating Block

St1lCh IM1cator

Feed Lever Washer Feed DISC Shall Spnng

Set Screw. 8Req'd

Feed Lever Shoulder Screw

Feed Driving Screw

Sl1ICh Stud Nut Feed Gear Only

416-FC

R•ght S1de Feed Gear, Complete

Feed Gear Shaft Feed Gear R•ng Feed Gear Cam

Feed Gear Roller, 4Req d Feed Gear Roller P1r1. 4 R_eq'd Feed Gear Roller Spnng. 4Req d Feed Gear Plate Screw. 2Req c Feed Gear Cam Screw, 4Req'd Feed Reta•n•ng Drum Plate Screw Feed Gear Plate

FeW Reta1mng Drum

FeW Reta1mng Drum Cam Feed Reta•n•ng Drurr, Plate

630-FC

Left S1de Feed Reta1n1ng Drum. Complete

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Feed Retaining Drum Parts

Feed Gear Parts

Feed Lever Parts

GEAR AND FEED ASSEMBlY

CAUTION: Order by part number only. When ordenng parts, kindly state Serial and Model Numbers of Machine. The Serial Number is stamped on the left top edge of main frame. The Model Number is printed on From the Library of Superior Sewing Machine & Supply LLC

NEEDLE BAR ASSEMBLY

Part No.

Description

NeedleBar Yoke Eccentric Needle Bar (For -RO" Models 1l1S Part No 113-RJ Needle Bar Tens1on Plate Needle Clamp

7A '" 115 119 134 .

202 206 215 216 217 218 227 400 467 468 469 617-A Needle- Needle Bar Tens1on Spnng Yoke Eccentnc Set Screw Needle Bar Yoke Adjustable Bracket Screw, 2 Req'd Needle Bar Tens1on Plunger Needle Bar Plunger Nut Needle Bar Tension Plate Screw Needle Bar Yoke P1nch Screw. 2Req d Needle Clamp Screw Needle Bar Yoke Needle Bar Yoke Support Shalt Needle Bar Yoke Support Shalt Lock Nul Needle Bar Yoke AdJUStable Bracket Needle Bar Bushing Bonis System 292-A (For -RD" Models illS Bon1s System459 Custom Gauges for Special Work are Available

Printed in U.S.A.

From the Library of Superior Sewing Machine & Supply LLC

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NEEDLE BAll ASSEMBLY

Ros. SEWING M treet IVew York IVY. ACHINERY CORP. • · · lOOOlopho c••,. Add,.,, 'BONtBRo· ne 2l2164S.oool felex: 422449 Fax: (212) 645-0914

From the Library of Superior Sewing Machine & Supply LLC