Cummins HC Alternator HC434F

Inspect the condition of all bearings

Grease all re-greasable bearings

Record customer settings for bearing temperature sensors

Check all alternator/customer connections and cabling

Test Initial AVR and PFC set up with alternator running

Check customer connection of auxiliaries

Test synchronization with alternator running

Perform PI test for MV/HV windings

Test temperature sensors with alternator running

Record customer settings for temperature sensors

Disconnect cables from X+ (F1) and XX- (F2) terminals of the AVR

Ensure no excitation voltage supply to the exciter stator

Run the generator set in de-excited state

Ensure air flows freely through the alternator

Operate the anti-condensation heater (if fitted)

Direct hot air from electrical fan heaters into the alternator air inlet

Ensure each heat source is at least 300mm away from the windings

Environmental and Cleanliness Check

Check environmental conditions and cleanliness

Measure ambient temperature inside

Measure ambient temperature outside

Check complete machine for damage, loose parts and earth bonds

Check guards, screens, warning and safety labels