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Installation

To install the taper attachment:

1.  DISCONNECT LATHE FROM POWER!

2.  With the assistance of a helper and using 

a 6mm hex wrench, remove the four cap 

screws holding the splash guard on the rear 

of the lathe.

3.  Using a 5mm hex wrench, remove the two 

leadscrew end-cap cap screws shown in 

Figure 4.

Note

: Make sure to keep the correct race with 

its original bearing, and do not hammer on 

the casting or chisel the inner races out. The 

inner race has a loose fit. If it is difficult to 

remove from its seat, be patient and spray 

some penetrating oil into the bore and 

carefully work the race out from the grease 

suction that is 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).

Figure 6. Top plate removal.

8.  Using a 5mm hex wrench, loosen the slide 

block set screw, as shown in Figure 7.

Figure 7. Slide block removal.

Figure 4. Lead screw end-cap.

Lock

Nut

Set 

Screws

Leadscrew 

End-Cap

Set 

Screws

Cap 

Screws

4.  Using a 3mm hex wrench, remove the four 

set screws (Figure 4) from the saddle.

5.  Using a 17mm wrench, remove the lock nut 

(Figure 4) from the end of the lead screw.

6.  Slide the end-cap off the lead screw. Make 

sure that the inner and outer race shown in 

Figure 4 do not stick to the end-cap.

Figure 5. End-cap removal.

Inner 

Race

Outer 

Race

End 

Cap

For Product Mfg. Since 1/10

Model SB1269

-5-

P R E P A 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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