Eaton Cutler-Hammer VCP-W Instructions For Installation, Operation And Maintenance

Also see for 380 VCP-W 21: Instructions for installation, operation and maintenance

I.B. 3A74792H04 Page 29Effective 7/976-3 INSPECTION AND MAINTENANCE PROCEDURESNo./Section Inspection Item Criteria Inspection Method Corrective Action1. Insulation Drive Insulator No dirt Visual Check Clean with lint-free clothand and orMolded Pole Unit Support No cracking Visual Check Replace cracked unitInsulation Main Circuit to Ground Withstand Hipot Tester Clean and retest or replaceIntegrityBetween Main Circuit Withstand Hipot Tester Clean and retest or replaceTerminalsControl Circuit to Ground Withstand Hipot Tester Clean and retest or replace2. Power Vacuum Interrupters Visibility of 3 front Visual/Measurement - Close the circuit If the front indicator marks areElements Contact Erosion Marks breaker and observe if all 3 front indicator in the red area and the rearand Precise Measure- marks are in green area, and then measurement is not acceptable,ment from rear proceed as described in Paragraph 6-5 replace pole unit assemblyContact wipe Measurement of Loading Spring as If measurement is not acceptable,measurement described in Paragraph 6-6 replace pole unit assemblyAdequate Vacuum Proceed with integrity check as If integrity check is not satisfactory,described in Paragraph 6-4 replace pole unit assemblyPrimary Disconnects No burning or damage Visual Check Replace if burned, damagedor eroded3. Control Closing and Tripping Device Smooth and correct Test closing and tripping of the Replace any defective device. IdentifyCircuit Including Disconnects operation by control circuit breaker twice per trouble-shooting chartParts powerWiring Securely tied in Visual Check Repair or tie as necessaryproper placeTerminals Tight Visual Check Tighten or replace if necessaryMotor Smooth, Normal Functional Test Replace brushes or motorOperation4. Operating Tightness of Hardware No loose or missing Visual and by feel Refer to Table 6.1 and tightenMechanism parts or reinstate if necessary withappropriate toolsDust or Foreign Matter No dust or foreign Visual Check Clean as necessarymatterLubrication Smooth operation Sight, feel and per maintenance Refer to Figure 6-1, Paragraphand no excessive schedule 6-11 and lubricate very spar-wear ingly with light machine oilDeformation or Excessive No excessive Visual and operational Remove cause and replace partsWear deformation or wearManual Operation Smooth operation Manual charging, closing Correct per troubleshootingand tripping chart if necessary