Carriage/Milling Table - Smithy GRANITE 1300 SERIES Operator's Manual

Carriage/Milling Table

1. Table won't move
Cause
• Table locks engaged
• Gibs too tight
2. Horizontal and vertical movement in cross-slide table
Cause
• Carriage gib improperly adjusted
• Table gib improperly adjusted
3. Carriage moves smoothly in only one direction
Cause
• Debris on way or gib
• Burr on gib
• Gib improperly tensioned
• One or more wipers mounted too low
4. Cross-slide handwheel turns during cutting operations
Cause
• Cross-slide brass nut worn
• Carriage lock not tight
• Gibs too loose
5. Too much backlash in the cross-slide
Cause
• Loose screw
• Loose brass nut
• Worn brass nut
• Excessive space between bearing
Solution
• Loosen locks
• Loosen gibs
Solution
• Adjust carriage gib
• Adjust table gib
Solution
• Remove debris
• Remove burr with fine file
• Loosen gib and re-tension
• Reposition wiper(s)
Solution
• Tighten or replace brass nut
• Tighten carrriage locks
• Readjust gibs
Solution
• Tighten screw, review how to
eliminate backlash
• Put a shim between the stud on
the nut and the side of the hole
• Replace brass nut or adjust screw
at end of nut
• Add shim washer and dial
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12: Troubleshooting
12-2