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Palmgren Operating Manual & Parts List
80161 & 70104
SYMPTOM
Motor does not run when start button is
pushed
Motor overheats
Spindle overheats
Lack of power at spindle
Cutting tool chattering
Spindle does not return to full “up” position
Excessive backlash in lead screws
Excessive noise
Excessive play in table
POSSIBLE CAUSES
1. No power to motor
2. Blown fuse on control box
3. Defective switch or contactor
1. Low voltage to motor
2. V-belts too tight
3. Too deep or too fast a cut
4. Worn contacts in contactor
1. Poor quill bearing lubrication
2. Spindle bearings too tight
3. Mill drill operated at high speeds
for extended period
V-belts loose
1. Spindle bearings loose
2. Table is loose
3. Worn spindle bearings
4. Head clamp bolts loose
1. Poorly adjusted return spring
2. Worn return spring
Worn lead screw nuts
1. Loose spindle bearings
2. Loose motor pulley
Table is loose
CORRECTIVE ACTION
1. Check electrical connector and
circuit breaker or fuse
2. Correct wiring problem and
replace fuse
3. Replace defective parts
1. Check voltage
2. Tension belts properly
3. Reduce cut depth or speed
4. Replace contactor
1. Lubricate bearings with bearing grease
2. Adjust bearings so that spindle
does not bind
3. Allow mill drill to cool
Tension V-belts properly
1. Tighten bearings
2. Adjust table and saddle gibs
3. Replace bearings
4. Tighten bolts
1. Increase return spring tension
2. Replace return spring
Replace lead screw nuts
1. Adjust bearings properly
2. Tighten pulley set screws
Adjust table gibs properly
