Sharp 16 Series Manual page 37

CHATTER/VIBRATION PROBLEMS:
1. Spindle has excessive run out. (Figure 5)
2. Loose Compound, cross feed or saddle. (Figure 6)
3. Loose motor mount or motor not seated properly on base. (Figure 7)
4. Backlash on drive pulley shaft and key. (Figure 2)
5. New rack and old gear. (If machine has been crashed) (Figure 8)
6. Irregular power supply. (Not getting 3-phase)
7. Leveling bolts loose or lathe not properly leveled.
8. Defective live center. (On a long work piece chatter in the center & not on ends).
COOLANT PUMP NOT WORKING OR PRESSURE TOO LOW.
a. Check coolant level.
b. Check pump shaft for rotation. (Proper rotation is clockwise).
c. Check for clogged line. (Both suction and discharge).
Notes:
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