TS 840 TRANSFER SWITCH
PM057 REV 8 10/01/25 22 Thomson Technology
9. 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.
10.6. Verify all program settings on the TSC 80 controller as per the TSC 80 component
calibration label inside the transfer switch enclosure.
10.7. Use high viscosity moly lubricant for lubrication of the drive hub/operator arm
interface.
10.8. The motor and gearbox is permanently lubricated, and should not require attention
under normal operating circumstances.
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