THOMSON TS 870 - Page 48

TS 870 Transfer Switch
PM062 REV 11 16/04/19 46 Thomson Power Systems
RECOMMENDED MAINTENANCE
DANGER
Arc Flash and Shock Hazard. Will cause severe injury or death.
Do not open equipment until ALL power sources are disconnected
This equipment must be installed and serviced only by qualified electrical personnel utilizing
safe work practices and appropriate Personal Protective Equipment (PPE).
Failure to do so may cause personal injury or death
10.1. DO NOT perform dielectric tests on the equipment with the control components in the
circuit.
10.2. Check if control components are tight in sockets.
10.3. Periodically inspect all terminals (load, line and control) for tightness. Re-torque all
bolts, nuts and other hardware. Clean or replace any contact surfaces, which are dirty,
corroded or pitted.
10.4. Transfer switches should be in a clean, dry and moderately warm location. If signs of
moisture are present, dry and clean transfer switch. If there is corrosion, try to clean it off. If
cleaning is unsuitable, replace the corroded parts. Should dust and/or debris gather on the
transfer switch, brush, vacuum, or wipe clean. DO NOT blow dirt into power switching devices.
10.5. Test the transfer switch operation. While the unit is exercising, check for freedom of
movement, hidden dirt, corrosion or any excessive wear on the mechanical operating parts.
Ensure that the power switching device travel is correct.
10.6. Verify all program settings on the TSC 900 controller as per the TSC 900 component
calibration label on the rear cover of the controller.
10.7. Transfer Mechanism 1000A-1200A-T Style ensure that the manual handle moves
freely on the hub when the lock pin is disengaged. If lubrication is necessary, apply medium
weight (SAE 20) oil sparingly.
10.8. Transfer Mechanism 1000A-1200A T Style - yoke pivot bearings and rod ends are
permanently lubricated and do not require maintenance.
10.9. Transfer Mechanism 100A-800A S Style - lubrication of drive hub/operator arm
interface. Use high viscosity moly lubricant.
10.10. The motor and gearbox on all Transfer Mechanism styles are permanently lubricated,
and should not require attention under normal operating circumstances.