Maintenance
Rotary Convertors
To ensure proper operation and the long life of your Steelman phase convertor,
a couple of simple maintenance steps should be taken.
Before performing any maintenance, disconnect power and allow the convertor
generator motor to come to a complete stop.
Check for dirt accumulations around and in vent openings on a regular
basis to prevent overheating. Dirt accumulations should be removed by
vacuuming.
Lubricate the generator motor based on your usage. For continuous normal
applications, the suggested lubrication interval is 9 months. Adjustments
to the lubrication interval should be made according to your needs. Lubricate
as follows:
For R-7.5 and smaller units use #2 lithium base grease, and for R-10 &
larger units use medium polyurea base grease.
If motor is equipped with an Ale mite fitting, clean the tip of the fitting
and apply grease gun. Use 2 full strokes.
On units having drain plugs, remove grease drain plug and operate convertor
motor for 20 minutes before replacing drain plug
CAUTION: Keep grease clean. Lubricate units at standstill. Remove and
replace drain plugs at standstill. Do not mix petroleum grease and silicon
grease in rotary bearings.
HAS Static Convertors
Regularly check amperages. If amperages are outside of the checkout limits
found in the Static Phase Convertor Installation Instructions, page 10,
test the capacitors. Capacitor testing procedures can be found in the
Troubleshooting section.
Replace capacitors as required.
Ensure that the Normally Open Contactor is dropping the start capacitors
out of the circuit in a timely manner, to keep the start capacitors from
burning up.
Fixed Power Factor Correction Capacitors
Check for illuminated pilot lights on a regular basis.
Ensure that the installation location does not exceed ambient temperature
limits.
For units with vents, regularly check for good airflow and clean the vents.
Var Manager Automatic Correction Capacitors
Maintain recommended torque settings found on fuse blocks.
Regularly check vents for good airflow and keep them clean from dust and
other items that would block airflow. Vents should be vacuumed to remove
any dirt or dust.
If unit has air filters, replace them on a regular basis to ensure proper
airflow.
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