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6.4. Possible purge cycle problem

6.4. Possible purge cycle problem​

 

Table 6‑2 Possible purge cycle problem

Problem

Cause

What to check for

Inadequate air flow through the robot

Air supply capacity

inadequate

-   Check the air pressure at the pneumatic air supply.

-   Check the Air Purge Unit System.

-   Check the Air Hose.

Air leakage from robot

Bad seal

-   Look for leakage around cover gaskets and bearing seals at the cable entrance to the robot, holes where plugs or screws are missing through unsealed conduit.

Pressure switch or air flow switch does not appear to work

Defective pressure switch or air flow switch

- Perform the pressure switch test and air flow switch test to check components.

Inconsistent readings on the pressure gauge

Air leaks or other problems with the pneumatic air distribution

- Check continuity of the pressure switch and air flow switch during dynamic test conditions.

- Check pressure gauge