Nortec T-448AC, Руководство оператора и по техническому обслуживанию

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Maintenance
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Check potentiometer
Turn the key switch to OFF, disconnect potentiometer terminals. Check the resistance across
terminals: if not within the recommended limits, adjust or replace the potentiometer. Check for
shorts between potentiometer wires and vehicle frame; resistance should read at least 1
megohm.
Check main contactor or solenoid
Check voltage on coil positive terminal; if not B+, check circuit breaker or replace the solenoid.
Turn to on the key switch and activate the seat switch. Check voltage across the coil terminals;
if not 24V, check wiring and interlock switches. Check resistance across power terminals; if not
0 ohms, replace the solenoid.