Genie Z-45/25 Service Manual
Also see for Z-45/25: Service manualMaintenance manualOperator's manualOperator's manualService and repair manual
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Contents
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7 - 48 Genie Z-45/25 & Genie Z-45/25J Part No. 52709First Edition • Second PrintingSection 7 • Repair ProceduresGround Controls10-1Control RelaysRelays used for single function switching are singlepole double throw (SPDT) relays.How to Test a Single Pole DoubleThrow RelayElectrocution hazard. Contact withelectrically charged circuits couldresult in death or serious injury.Remove all rings, watches andother jewelry.1 Label and then disconnect all the wiring fromthe relay to be tested.2 Connect the leads from an ohmmeter orcontinuity tester to each terminal combinationand check for continuity. Terminals 85 and 86represent the coil and should not be tested inany other combination.Test Desired resultterminal 85 to 86 75 to 85Ωterminal 87 to 87a & 30 no continuity(infinite Ω)terminal 87a to 30 continuity(zero Ω)3 Connect 12V DC to terminal 85 and a groundwire to terminal 86, then test the followingterminal combinations.Test Desired resultterminal 87 to 87a & 30 no continuity(infinite Ω)terminal 87 to 30 continuity(zero Ω)terminal no. 87a - N.C.terminal no. 85 - groundterminal no. 30 - commonterminal no. 86 - coilterminal no. 87 - N.O.Control Relay Schematic |
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