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15
on belts or other rubber parts.
(2) After cleaning, coat all possible rusted surface with a light lubricant. Lubricate all points in
Fig.1. with a medium consistency machine oil.
(4) Lubricating points as shown in arrows.
18. TROUBLE SHOOTING
(1) No running after switch on:
(a) Main switch interruption while volts irregular - Adjust input voltage and draw back the main
switch.
(b) Break down of fuse in switch box - Replace with new one.
(c) In case of too much current, the overload relay jumps away automatically - Press the overload
relay, and it will return to the correct position.
(2) Motor Overheat and No Power:
(a) Overload - Decrease the load of feed.
(b) Lower voltage - Adjust to accurate voltage.
(c) Spoiled contact point of magnetic switch - Replace with new one.
(d) Breakdown of overload relay - Connect it or replace with new one.
(e) Motor is poor - Replace with new one.
(f) Break down of fuse or poor contact with wire (it is easily, to spoil motor while short circuit)
Switch off power source at once and replace fuse with new one.
(g) The tension of pulley V-belt too tight - Adjust for proper tension of V-belt.
(h) If this machine with the tapping attachment, there is an aid plum screw fix on the motor
mount in order to avoid the motor pulleys shake while turning.
(3) The temperature of spindle bearing is too hot:
(a) Grease is insufficient - Fill the grease.
(b) The spindle beating is fixed too tight - turning with no speed and feel the tightness with hand.
(c) Turning with high speed for a long time - Turn it to lightly cutting.
(4) Lack of power with main spindle revolving:
(a) The tension of V-belt too loose - Adjust far proper tension of V-belt.
(b) Motor has burned out - Change a new motor.
(c) Fuse has burned out - Replace with new one.
(5) Table travel has not balanced:
(a) The gap of spindle taper too wide - Adjust bolt in proper.
(b) Loosening of leaf bolt - Turn and fasten in place.
(c) Feed too deep -Decrease depth of feed.
(6) Shake of spindle and roughness of working surface has taken place during performance:
(a) The gap of spindle bearing too wide - Adjust the gap in proper or replace bearing with new
one.
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