Model SB1231 | I N S T R U C T I O N S | Mfg. Since 5/10 |
Troubleshooting
Symptom
Possible Cause
Possible Solution
The chuck has | 1. | Jaw is in a poor position for | 1. | |
hard spots or binds |
| clamping. |
| slot and jaw screw. |
completely. | 2. | Lack of lubrication, rust, burr, or | 2. | Disassemble, |
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| metal shavings inside of chuck. |
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| 3. | Broken tooth on the jaw or the jaw | 3. | Disassemble chuck and repair/replace broken part. |
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| screw. |
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The workpiece slips | 1. | Incorrect jaw or workpiece clamping | 1. | |
in the jaws. |
| position. |
| slot and jaw screw. |
| 2. | Chuck is binding before full | 2. | Chuck is loaded up with contaminants. Disassemble |
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| clamping force is achieved, or a jaw |
| and service chuck. Loosen and retighten the chuck |
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| or jaw screw is binding. |
| key several times to distribute lubricant. |
| 3. | Cutting overload. | 3. | Reduce cutting depth or feed rate. |
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Clamping accuracy | 1. | Workpiece improperly clamped or | 1. | Remove jaws, clean, |
is poor. |
| workpiece is misaligned. |
| accuracy and recalibrate test/dial indicator. |
| 2. | Chuck loose; mounting is | 2. | Remove chuck, clean and |
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| or is improperly seated. |
| camlock studs, and |
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Parts List
REF | PART # | DESCRIPTION |
1 | PSB1231001 | REVERSIBLE CHUCK JAW |
2 | PSB1231002 | CHUCK BODY |
3 | PSB1231003 | JAW SCREW |
4 | PSB1231004 | JAW SCREW PIN |
5 | PSS02 | SET SCREW |
6 | PSB1231006 | CHUCK KEY |
7 | PSB1231007 | |
8 | PCAP09 | CAP SCREW |
If you need help with your new chuck, |
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contact us at: |
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PHONE: (360) | |||
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FAX: (360) | (International) |
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FAX: (360) | (USA Only) | 1 | |
EMAIL: sales@southbendlathe.com | |||
Parts Diagram
7 8
45
3 
6
Please Note: We included this parts breakdown for service purposes only. Since many of the parts shown are machined to each individual chuck, they may not be available as replacement items.