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Operation

6.  Retighten both dovetail lock cap screws.

7.  Begin lathe operations.

When the deadman clamp cap screws are loose, 

the deadman clamp slides along the lathe way, 

and the taper attachment is disengaged. Normal 

lathe turning operations can be conducted. 

When the deadman clamp cap screws are 

tightened, the deadman clamp is locked to the 

lathe way, and the taper attachment is engaged. 

At this point tapered turning operations can be 

made.

To use the taper attachment:

1.   DISCONNECT LATHE FROM POWER!

2.  Move the carriage, cross slide, and 

compound rest so your turning bit is at your 

needed location to begin the tapered cut.

3.  Using an 8mm hex wrench, tighten both 

deadman cap screws so the deadman clamps 

against the lathe bedway, as shown in 

Figure 23.

4.  Using a 6mm hex wrench, loosen the dovetail 

lock cap screw at each end of the taper 

attachment, as shown in Figure 24.

Figure 24. Taper angle control knob.

Dovetail 

Lock Cap 

Screw

Taper Angle Control Knob

0

Taper Angle 

1

Taper Per/Inch

One inch long tapered

 workpiece such as an arbor or pin.

Figure 25. Scale relationship with workpiece.

Figure 23. Deadman clamp location.

Cap Screw

5.  Turn the taper angle control knob (see 

Figure 24) until you reach the taper angle 

or the taper-per-inch setting that you need. 

Refer to Figure 25 to select which scale best 

suits your needs.

-10-

For Product Mfg. Since 1/10

Model SB1269

O P E R A T I O N

Summary of Contents for SB1269

Page 1: ...it onto a series of South Bend lathes Shown in Figure 1 is a Model SB1012 lathe that is fitted with the Model SB1269 taper attachment Figure 1 Model SB1269 installed Taper attachment installed on rear...

Page 2: ...users have an increased risk of seriously injuring themselves with this lathe accessory Do not operate lathe until you have understood this entire manual and received proper training Dead Man Arm Tap...

Page 3: ...so save the containers and all packing materials for possible inspection by the carrier or its agent Figure 3 Model SB1269 inventory A B C D E F Things You ll Need This attachment is intended to be a...

Page 4: ...will not damage it Basic steps for removing rust preventative 1 Put on safety glasses and disposable gloves 2 Coat all surfaces that have rust preventative with a liberal amount of your cleaner or deg...

Page 5: ...s holding it You can also soak the casting in mineral spirits to break this suction 7 Using a 2 Phillips screwdriver remove the eight flat head screws and the taper attachment top plate Figure 6 Figur...

Page 6: ...d remove the slide block end cap as shown in Figure 9 Copper Anti Score Plug Figure 9 Slide block end cap removal Slide Block End Cap 14 Using a 17mm wrench thread the lock nut onto the lead screw unt...

Page 7: ...wrench snug the slide block set screw so the copper plug is slightly preloaded against the pivot pin see Figure 13 Figure 12 Taper attachment installation Mounting Cap Screw Figure 13 Pin adjustment...

Page 8: ...ur locking set screws Figure 19 that lock the adjustment cam in position 24 Using a 6mm hex wrench loosen the dovetail lock cap screw at each end of the taper attachment as shown in Figure 17 Figure 1...

Page 9: ...s shown in Figure 20 so the knob indicator point is against the top of the dovetailed table 34 Move the carriage to the other end of the way read the knob indicator and note the amount of total misali...

Page 10: ...cation to begin the tapered cut 3 Using an 8mm hex wrench tighten both deadman cap screws so the deadman clamps against the lathe bedway as shown in Figure 23 4 Using a 6mm hex wrench loosen the dovet...

Page 11: ...aper angle control knob Dovetail Lock Cap Screw Taper Angle Control Knob 3 Using a 6mm hex wrench loosen both dovetail lock cap screws one end shown in Figure 27 Figure 26 Deadman clamp location Cap S...

Page 12: ...ce Schedule For optimum performance from your taper attachment follow this maintenance schedule and refer to any specific instructions given in this section Daily Check correct loose mounting bolts Cl...

Page 13: ...12 13 5 2 21 20 18 17 16 15 14 12 13 12 11 10 34 35 27 26 36 25 22 24 36 23 19 20 51 10 11 48 46 47 33 45 44 43 40 42 40 39 38 37 23 41 46 49 50 Taper Attachment Breakdown For Product Mfg Since 1 10 M...

Page 14: ...PSB1269014 MAIN HOUSING 39 PSB1269039 CLEVIS PIN 15 PSB1269015 PLATE 40 PSB1269040 NUT BLOCK M6 1 X 25 16 PS68M PHLP HD SCR M6 1 X 10 41 PSB1269041 T NUT M8 1 25 17 PSS21M SET SCREW M8 1 25 X 25 42 PS...

Page 15: ...complies with the provisions of any law act code regulation or standard of any domestic or foreign government industry or authority In no event shall South Bend s liability under this warranty exceed...

Page 16: ...10 By South Bend Lathe Co Revised April 2010 CR WARNING No portion of this manual may be reproduced in any shape or form without the written approval of South Bend Lathe Co CR12550 Printed in Taiwan w...

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