Manual Huvema HU 460 X 1500 VAC (page 25 of 60) (English)

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CHANG E S AND T YPI N G ERRORS RESERVED

13.1.2 check afTer sTarT The moTor.

• To check electrical control system: Try to put “on” and “off” button and examine the sensitiveness of starting,

stopping and pilot lamp strictly.

• 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.

• 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.

• Coolant system: Check the quantity of coolant oil and start the oil pump for inspecting its function and leakage.

• Lubricating system: Examine all Lubricating system carefully and ensure all flowing line without obstacles.

13.1.3 caUTion dUrinG operaTion:

• Temperature of bearings. Touch the main bearing by hand and feel the temperature is normally or not.

• Temperature of motor: Feel the temperature of motor bearing at the case of full load.

• 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.

• Quality of products: If you discover the quality of products is out of limit, stop the machine at once for finding

the causes of defects.

• 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.

13.1.4 check afTer operaTion:

• Cleaning and collection of all tools: All tools should be kept clean first then put back to original position (tool

cabinet).

• Proper position of tailstock, carriage & tool holder: Tailstock, carriage & tool holder should be placed to proper

position.

• Clean-up of machine: All of the oily matters, chips etc, on the machine should be removed completely and put a

thin lubricating oil on the sliding surface of machine to prevent the corrosion.

13.2 Weekly inspecTion:

• Lubricating system: Clean up the whole lubricating system and replenish with fresh lubricating oil.

• Cooling system: Clean up the whole cooling system and replenish with new cooling oil.

• Transmission system: Check the damage of rubber V-belt and readjust the tensile strength of V-belt.

13.3 monThly inspecTion:

• Dismantle and clean all the dust, chips and foreign matter from moving parts.

• Electrical system: Carefully examine the connection of all electrical wires, terminals and switches which

occasionally have been damaged by chips or other.

13.4 half-yearly inspecTion:

• Change oil in gearbox: Remove the used oil from gearbox of headstock, feed and replenish with fresh oil.

• Check the wear and tear of all gears and packing: Inspect the damage of all gears in various box, spindle and

bearings, and packing. Repair or replace it if necessary.

• Check the clearance fit of complicated feed mechanism: Check the clearance fit between feeding screw lever

and nut and main screw spindle and nut whether they are right or not.

• The stability of machine body: Tighten up the foundation bolts of machine body to the ground and make the

body stable.

13.5 yearly inspecTion:

• Positioning and leveling: According to the inspection regulation, recheck the positioning and leveling after a

year service.

• Inspection for accuracy: According to the regulation. Inspection work for accuracy should be rechecked. If the

accuracy is over specified limit, the adjustment or alignment will be done accordingly.

• Bearing inspection: Reexamine the insulating materials and clearance fit & lubrication of all bearings.

• Inspection for appearance:

a. If paints are peeled off, repaint it with the same color.

b. Check the exposed parts whether they have been damaged, corroded, or deformed, repair or replace

them if necessary.

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Huvema HU 460 X 1500 VAC Manual

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