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page 31
TRD-54-T (22.5)
Maintenance
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2.6 Electrical
Harnesses and Lights
The electrical harnesses in the trailer run within the frame members and require no
maintenance. The oval stop/turn/tail lights and the round clearance lights are all of the
sealed type and do not have a separately replaceable bulb. If a light stops working, first
check the plug at the light for voltage (with a test lamp or volt meter) to verify that the
electrical system is functioning properly. If it is then replace the lamp; if not then trouble-
shoot the electrical system.
Junction Block
The junction block requires no regular maintenance. If an electrical problem devel-
ops, check for corroded or loose terminals.
Seven-Way Plug
The plug should be kept clean and free of dirt. If an electrical problem develops,
loosen the plug cover retaining screw, slide the cover down over the harness, and
check the screws that hold the wires for security. Also check for stray or broken strands
of wire.
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