Avtron 2000 Series Manual Toggle Switch Load Bank • Maintenance Use
’s Guide
5-2
THREE MONTHS OR 500 HOURS
1. Remove access panels and screens.
2. Inspect the load resistors for mechanical breakdown which is demonstrated by
excessive sagging of the elements. Replace with new resistor elements as
required.
3. Inspect for broken ceramic insulators. Replace with a new ceramic insulator if any
cracks are found.
4. Inspect for loose hardware or loose connections. Tighten where required.
5. Inspect all connections for oxidation or corrosion. Clean the connection or replace
the hardware where required.
6. Inspect all magnetic contactors to make sure that the contacts are not severely
pitted or corroded. The contacts must move freely and be properly seated.
7. Clean all dirt and debris out of the load bank. This can be accomplished by blowing
the inside of the unit with clean, dry compressed air (not to exceed 40 PSI). Eye
protection should be worn when cleaning the load bank with compressed air.
8. Inspect all the wiring for any sign of insulation failure.
9. Replace all access panels and screens. Tighten all the fastening hardware
securely.
10. Check the indicator lamps on the control panel.
PARTS REPLACEMENT
Access to any component is easily made with the removal of the cover panels.
Replaceable components in the unit are listed in the replacement parts list. Manufacturer
maintains an inventory of normally used items.
To Next Page