TS 880 TRANSFER SWITCH
PM064 REV8 10/01/25 29 Thomson Technology
q DO NOT perform dielectric tests on the equipment with the control components
in the circuit.
q Check if control components are tight in sockets.
q 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.
q 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.
q 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.
Ø Verify all program settings on the TSC 800 controller as per the programming
sheet as supplied with the transfer switch.
Ø 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.
Ø Yoke pivot bearings and rod ends are permanently lubricated and do not
require maintenance.
Ø The motor and gearbox are permanently lubricated, and should not require
attention under normal operating circumstances.
7.3. SERVICING – 800A – 4000A INSULATED CASE TYPE TRANSFER
MECHANISMS
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
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