S&C PureWave SMS-250 Operation And Maintenance page 47

Clean PCS Enclosure Fans
□
Inductor fan (requires removal of inductor fan cover. See Figure 35.)
13 MM SOCKET - 9 N-M (7 FT-LBS)
USE EXTENSION TO REACH
13 MM SOCKET
9 N-M (7 FT-LBS)
Figure 35. Removal of inductor fan cover.
□
Three fans on the IGBT poles.
□
Cabinet fan (located behind the pull-out control assembly at the top of the
enclosure).
Fan Functionality Verification
Inductor Fan
□
Verify the fans spin freely.
□
Verify there is no bearing noise when the fan is rotating.
□
Verify there is no rust visible.
IGBT Pole Fan #1
□ Verify the fans spin freely.
□
Verify there is no bearing noise when the fan is rotating.
□
Verify there is no rust visible.
IGBT Pole Fan #2
□
Verify the fans spin freely.
□
Verify there is no bearing noise when the fan is rotating.
□
Verify there is no rust visible.
IGBT Pole Fan #3
□
Verify the fans spin freely.
□
Verify there is no bearing noise when the fan is rotating.
□
Verify there is no rust visible.
Cabinet Fan
□
Verify the fans spin freely.
□ Verify there is no bearing noise when the fan is rotating.
□
Verify there is no rust visible.
If damage, rust, or any other problem is found, replace the fan .
NOTICE
S&C Instruction Sheet 659-520
Maintenance
47