INSTRUMENTS SELECTION
| CAUSE | SOLUTION | VIDEO TUTORIAL |
| 1 | ARM DOESN’T WORK CORRECTLY | CHECK IF THE PIN IN THE ARM RETRACT INWARDS |  |
| 2 | SELECTION MICROSWITCH DOESN’T WORK | CHECK BY MULTIMETER OR REPLACE IT | |
| 3 | SECDB2 IS NOT ABLE TO CONTROL THE SELECTION OF THE INSTRUMENTS | CHECK OR REPLACE IT | |