Carriage/milling table – Smithy GN1300 User Manual

Page 88

Carriage/Milling Table

1. Table won't move

Cause

Solution

• Table locks engaged

• Loosen locks

• Gibs too tight

• Loosen gibs

2. Horizontal and vertical movement in cross-slide table

Cause

Solution

• Carriage gib improperly adjusted

• Adjust carriage gib

• Table gib improperly adjusted

• Adjust table gib

3. Carriage moves smoothly in only one direction

Cause

Solution

• Debris on way or gib

• Remove debris

• Burr on gib

• Remove burr with fine file

• Gib improperly tensioned

• Loosen gib and re-tension

• One or more wipers mounted too low

• Reposition wiper(s)

4. Cross-slide handwheel turns during cutting operations

Cause

Solution

• Cross-slide brass nut worn

• Tighten or replace brass nut

• Carriage lock not tight

• Tighten carrriage locks

• Gibs too loose

• Readjust gibs

5. Too much backlash in the cross-slide

Cause

Solution

• Loose screw

• Tighten screw, review how to

eliminate backlash

• Loose brass nut

• Put a shim between the stud on

the nut and the side of the hole

• Worn brass nut

• Replace brass nut or adjust screw

at end of nut

• Excessive space between bearing

• Add shim washer and dial

12: Troubleshooting

12-2

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