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04 /26/ 24, 6:01am

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Subject: Re: 1983 PT35 Motor Generator Author: Bob Dilks [ Next Thread | Previous Thread | Next Message | Previous Message ] Date Posted: 10/ 6/ 01, 6:39pm In reply to: Tim Babiak 's message, "1983 PT35 Motor Generator" on 10/ 5/ 01, 9:16am The Redi Line generator uses two DC motors, one at each end of the housing, to run an AC generator in the center of the housing. Power to these motors is actuated through two solenoids in the electrical compartment when the ignition is turned "on". Trubleshoot as follows: Turn the ignition "on", and using a multimeter, check for DC current at each DC motor on the generator. If voltage is present at both, there is a problem inside the housing. If voltage is present at only one motor, check the appropriate solenoid to assure voltage is arriving at the solenoid, then confirm that voltage is not leaving the solenoid, then check the smaller colored wire to a smaller stud on the solenoid top to insure there is voltage to excite the solenoid coming from the ignition switch. Next check the white wire from the other small stud on the top of the solenoid to insure it is grounded. If both solenoids are properly grounded, if there is ignition voltage to excite both solenoids and battery voltage available to be switched at both solenoids but only one exiting wire feeding one of the DC motors has voltage then one solenoid has failed. There is a possibility both solenoids could have failed. If you replace the solenoids they each must be rated for 80 amps continous duty, or you can use one solenoid rated for 200 amps continuous duty. The original Cole/Hersee solenoids are available from West Marine and perhaps from Blue Bird. If there is no exciting voltage from the ignition to the solenoids, your problem is either in the exciting wire or the contact at the ignition switch feed. [ Next Thread | Previous Thread | Next Message | Previous Message ]