Toshiba Industrial Robot TH350A

1. Item - Greasing of ball screw spline. Inspection procedure:

Apply the grease to the ball screw spline.

2. Item - Each axis drive system. Inspection procedure:

Move each axis by hand and make sure that it moves smoothly.

3. Item - Timing belts. Inspection procedure:

(1) Make sure that each timing belt is not worn off or cracked.

(2) Check each timing belt for tension.

1. Item - Cable ducts. Inspection procedure:

(1) Make sure that any cable duct will not twist, bend or crack locally at the time of robot motion.

(2) Make sure that all connectors of the cable ducts are tightened completely.

2. Item - Hand set flange. Inspection procedure:

Make sure that the hand set flange bolts are tightened completely.

Item - Robot installation bolts. Inspection procedure:

Make sure that the robot base installation bolts are tightened completely.

3. Item - Vibration and noise. Inspection procedure:

Make sure that each axis can move smoothly.

1. Item - Lubrication of ball screw. Inspection procedure:

Fill grease to the ball screw spline.

2. Item - Lubrication of reduction gears. Inspection procedure:

Fill grease to the reduction gears from the grease nipples.

3. Item - Wiring and piping. Inspection procedure:

Make sure that all cables and air tubes are in the good state.

4. Item - Replacement of position detector batteries (Be sure to replace the batteries every year.). Inspection procedure:

Replace the position detector backup batteries (housed in the robot base unit).

If the running time is long, battery consumption is small. If the power OFF time is long, the consumption is large. If the battery voltage drops, a battery alarm occurs. Then replace the batteries immediately.

1. Item - Inspection of consumable parts. Inspection procedure:

Inspect the flexible cables, reduction gears, ball screw splines, timing belts and motors, then replace them when necessary.

2. Item - Battery replacement (Replace the battery every five (5) years.). Inspection procedure:

Replace the RAM (controller) backup battery.

If the running time is long, battery consumption is small. If the power OFF time is long, the consumption is large. If the battery voltage drops, the battery alarm message saying “1–145 MAIN Battery alarm” is displayed. Then replace the battery immediately.

3. Item - Replacement of switching power supply unit (Replace the battery every five (5) years.). Inspection procedure:

As the switching power supply unit uses an aluminum electrolytic condenser, its life is limited. Replace the switching power supply unit (DC5 V, DC24 V) for preventive maintenance. The life of the switching power supply unit differs with load current, running hours and ambient temperature. If the load current is large, the running time is long or the ambient temperature is high, the life becomes short.

Item - Lubricated state of ball screw spline. Inspection procedure:

Make sure that the ball screw spline (or tool shaft) is greased completely and that no rust is developed on it.