284 ServiceAll work inside the TPSD charger should be performed by qualified personnel. La Marche is not responsible forany damages caused by an unqualified technician.Before working inside the TPSD ensure that the AC Power is off at the main breaker box and that bothof the unit’s breakers are off. Verify that no voltage is present by using a voltmeter at all input andoutput terminals.4.1 Performing Routine MaintenanceAlthough very little maintenance is required with the TPSD charger, routine checks and adjustments arerecommended to ensure optimum system performance.Yearly1. Confirm air vents are open. Remove dust and debris from interior of unit.2. Verify all connections are tight.3. Perform a visual inspection on all internal components.4. Check front panel meters for accuracy and LED operation.5. Check capacitors for electrolyte leakage and replace if necessary.Every 7 Years1. If the charger is consistently run in extreme temperature environments, the capacitors should be replaced.Every 10 Years1. Check magnetics, components and wiring for signs of excessive heat.2. Replace capacitors if not done at the 7 year interval.