Eaton 150VCP-W1000 - Inspection and Maintenance Procedures

I.B. 32-255-1G
Page 34
Effective 12/02
6-3 INSPECTION AND MAINTENANCE PROCEDURES
No./Section Inspection Item Criteria Inspection Method Corrective Action
1. Insulation Drive Insulator, Barriers, No dirt Visual Check Clean with lint-free cloth
and and or
Stand-off Insulators No cracking Visual Check Replace cracked piece
Insulation Main Circuit to Ground Withstand Hipot Tester Clean and retest or replace
Integrity
Between Main Circuit Withstand Hipot Tester Clean and retest or replace
Terminals
Control Circuit to Ground Withstand Hipot Tester Clean and retest or replace
2. Power Vacuum Interrupters Visibility of contact Visual - Close the circuit breaker and If a mark is not visible, proceed
Elements erosion marks observe if all green marks on moving to next step and perform contact
stems are visible - refer to Paragraph 6-5 wipe check
Contact wipe Refer to Paragraph 6-5 If not acceptable, perform CloSure
indicator visible Test (6-9.1), replace interrupter
assembly if CloSure Test is
satisfactory
Adequate vacuum Proceed with integrity check as If integrity check is not satisfactory,
described in Paragraph 6-4 replace interrupter assembly
Dirt on ceramic body Visual Check Clean with lint-free cloth
Primary Disconnects No burning or damage Visual Check Replace if burned, damaged
or eroded
Pole Unit X-Washers Every 1000 operations Operation counter Replace all X-Washers per
for 150 VCP-W 63 Figure 6-1B
3. Control Closing and Tripping Device Smooth and correct Test closing and tripping of the Replace any defective device.
Circuit Including Disconnects operation by control circuit breaker twice Identify per trouble-shooting
Parts power chart
Wiring Securely tied in Visual Check Repair or tie as necessary
proper place
Terminals Tight Visual Check Tighten or replace if necessary
Motor Smooth, normal Functional Test Replace brushes or motor
operation
4. Operating Tightness of Hardware No loose or missing Visual and by feel Refer to Table 6.1 and tighten or
Mechanism parts reinstate if necessary with
appropriate tools
Dust or Foreign Matter No dust or foreign Visual Check Clean as necessary
matter
Lubrication Smooth operation Sight, feel and per maintenance Refer to Figure 6-1 and Paragraph 6-10
and no excessive schedule and lubricate very sparingly with
wear light mineral oil
Deformation or Excessive No excessive Visual and operational Remove cause and replace parts
Wear deformation or wear
Manual Operation Smooth operation Manual charging, closing and Correct per troubleshooting chart if
tripping necessary
CloSure Test ≥ 0.6 inch over-travel CloSure Test (6-9.1) If < 0.6, contact P.I.C.
at (412) 787-6518