Troubleshooting
If you need replacement parts, or if you are unsure how to do any of the solutions given here, feel free to call us at (360)
Symptom
Possible Cause
Possible Solution
The chuck has | 1. | Jaw is in wrong position. | 1. | Reinstall jaws in correct order and position on scroll |
hard spots or binds |
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| gear. |
completely. | 2. | Lack of lubrication, rust, burrs, or | 2. | Disassemble, |
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| metal shavings inside of chuck. |
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| 3. | Broken tooth on the pinion or the | 3. | Disassemble, replace broken parts if possible, and |
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| scroll gear. |
| reassemble chuck. |
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The workpiece slips | 1. | Incorrect jaw or workpiece clamping | 1. | Reposition jaws and workpiece for maximum scroll |
in the jaws. |
| position. |
| gear and jaw engagement is achieved. |
| 2. | Insufficient pinion and scroll gear | 2. | Tighten chuck key to 65 ft/lbs. |
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| torque. |
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| 3. | Cutting overload. | 3. | Reduce cutting depth or feed rate. |
| 4. | Chuck is binding before full | 4. | Disassemble and service/rebuild chuck. |
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| clamping is achieved. |
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Clamping accuracy | 1. | Workpiece is improperly clamped or | 1. | Remove jaws, clean, |
is poor. |
| jaw is loose or incorrectly seated. |
| mounting caps crews torqued to 29 ft/lbs. |
| 2. | Chuck loose, mounting is off center, | 2. | Remove chuck, clean and |
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| or it is improperly seated. |
| install, or machine a new mounting plate. |
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Parts Diagram | Parts List |
3
4
7
8
| 5 | 9 |
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6 |
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15 |
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| 14 | 1 |
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13 |
| 11 |
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| 12 |
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| 2 |
REF | PART # | DESCRIPTION |
1 | PSB1313001 | GREASE FITTING |
2 | PSB1313002 | TOP JAW |
3 | PCAP115M | BUTTON HD CAP SCR |
4 | PSB1313004 | BACK COVER |
5 | PSB1313005 | LOCK PIN |
6 | PSB1313006 | PINION |
7 | PSB1313007 | SCROLL GEAR |
8 | PSB1313008 | CHUCK KEY W/SPRING |
9 | PSB1313009 | COMPRESSION SPRING |
11 | PCAP172M | CAP SCREW |
12 | PAW08M | HEX WRENCH 8MM |
13 | PSB1313013 | BOTTOM JAW SET OF 4 |
14 | PSB1313014 | CHUCK BODY |
15 | PB174M | HEX BOLT |
Please Note: We included this breakdown for service purposes only. Since many of the parts shown are machined to each individual chuck, they are not available as replacement items.
Copyright © March, 2010 By South Bend Lathe Co.
WARNING: No portion of this manual may be reproduced in any shape or form
without the written approval of South Bend Lathe Co.
#CR12664 Printed in Taiwan.
www.southbendlathe.com
