4) Check the sensitivity & reliability of all manual control levers:
To try the speed change rate function of headstock feeds and apron in gear box and inspect their starting,
stopping and forward & reverse action whether they are sensitive and reliable or not.
5) Fixture and fig of headstock, tailstock and tool holder Tight clamping between tailstock and bed
surface, close running fit of spindle in tailstock, clamp bolts of tool holder, and figs on headstock.
1-2 Check after start the motor.
1) To check electrical control system:
Try to put “on” and “off” button and examine the sensitiveness of starting, stopping and pilot lamp
2) The sensitivity and reliability of mechanical control device:
Control levers for forward and reverse main spindle, automatic feeds and threads change should be
sensitive and reliable. Automatic control devices for longitudinal and cross feed, gear change threads
change, carriage, and spindle direction change should be accurate also.
3) Limitation of noise and vibration:
When starting max speed of headstock spindle on no loading basis, check the noise and vibration
whether they are over specified limit or not.
4) Coolant system:
Check the quantity of coolant oil and start the oil pump for inspecting its function and leakage.
5) Lubricating system:
Examine all Lubricating system carefully and ensure all flowing line without obstacles.
1-3 Caution during operation:
1) Temperature of bearings.
Touch the main bearing by hand and feel the temperature is normally or not.
2) Temperature of motor:
Feel the temperature of motor bearing at the case of full load.
3) Noise and vibration:
If you find the noise and vibration of the machine are abnormal or irregular. Stop the machine
immediately for inspection and adjustment.
4) Quality of products:
If you discover the quality of products is out of limit, stop the machine at once for finding the causes
5) Safety affairs:
a. Must stop operation when you leave the machine.
b. When changing main spindle speed or feeding speed stop running first.
c. All tools and products are strictly not allowing to be left on sliding surface of bed.
1-4 Check after operation:
1) Cleaning and collection of all tools:
All tools should be kept clean first then put back to original position (tool cabinet).