Common faults check-Z3050

The emphasis and difficulty in radial drilling machine electric control part is the rise and fall of rocker arm,And spindle box of clamping and loosening of the post.Type Z3050 radial drilling machine working process is made up of electrical, mechanical and hydraulic mining system closely.Therefore, not only pay attention to the electrical part in maintenance can work normally, but also pay attention to it and the coordinated relationship between mechanical and hydraulic parts

１、 Fault inspection methods

（１） Investigation of malfunction
Processing before failure, to understand the failure, is operating equipment action, observe failure phenomenon

（２） To analyze the causes of failure and scope

（３） For a visual inspection
By see, hear, touch, smell to appearance inspection of appliances, appearance inspection shall be carried out under the power

（４） Check with instrument

       a. Power control method
Multimeter is commonly used in the resistance of the inspection or calibration lamp inspection
       b. Electric control method
The multimeter voltage file or pencil, using a multimeter to check, the gear must not wrong, to prevent short circuit to burn out

（５） Short connection
To judge fault with piecewise general wires short sub, this approach is charged operation, must pay attention to safety, do not make for short circuit

２、 Common fault phenomenon

（1）The spindle can’t start
（2）Rocker arm can rise, nor fall
（3）Rocker arm cannot increase (or decrease)
（4） Rocker arm can’t loosen or clamping
（5）Don’t relax or the spindle box and clamping
（6）Hydraulic pump motor can’t stop

Machine tool electrical fault is various, we should be based on specific failure phenomenon for fault analysis and inspection.During operation should be: see failure, familiar with the principle of clear, circuits, method is correct.