Carriage/milling table – Smithy Midas 1220 LTD User Manual

Page 95

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Carriage/Milling Table

Powerfeed doesn't move table

Cause

Solution

• Carriage

• Unlock Carriage

• Speed Selector not engaged

• Select Speed I or 11

• Leadscrew lever not engaged

• Move lever to the left or right

• Gear not meshing or teeth missing

• Check and adjust gears

• Crossfeed not engaged

• Move crossfeed lever down

Horizontal movement in cross-slide table

Cause

Solution

• Carriage gib improperly adjusted

• Adjust carriage gib

• Table gib improperly adjusted

• Adjust table gib

Vertical movement in cross-slide table

Cause

Solution

• Carriage gib improperly adjusted

• Adjust carriage gib

• Table gib improperly adjusted

• Adjust table gib

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

Cross-slide handwheel turns during cutting operations

Cause

Solution

• Cross-slide nut worn

• Replace brass nut

• Carriage locks not tight

• Tighten carriage locks

• Gibs too loose

• Readjust gibs

Too much backlash in the cross slide

Cause

Solution

• Loose screw holding crossfeed nut

• Tighten screw,

• Worn brass nut

• Replace nut

• Loose spanner nuts

• Adjsut Spanner Nuts

• Loose Brass Nut

• Put shim between the stud on the

nut and side of the hole

19: Troubleshooting

19-2

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