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Electric Club Car Electric DS, and Precedent golf cars |
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10-05-2016, 02:43 PM | #1 |
Not Yet Wild
Join Date: Aug 2015
Posts: 25
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Having trouble understanding 1987 club car
Hello all, I have having a hard time wrapping my head around the current flow on a 1987 Club Car with 5 solenoids and the resistors. I understand that the resistors inline will reduce the voltage to the motor, but I am having a hard time understanding how these resistors are bypassed. Could anyone help me out with this? Thanks
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10-05-2016, 04:23 PM | #2 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Having trouble understanding 1987 club car
This is a combination of previous posts about the operation of the 5 solenoid system:
As the pedal is pressed, 5 micro-switches inside the control box (aka: speed box, throttle box) close in sequence. micro-switch #1 triggers the master solenoid closest the driver side. The master solenoid connects the motor to the buss-bar, but no voltage exists at the buss-bar at this time so the cart does not move.Additionally you need to understand these solenoids are 36v continuous duty golf cart specific! No automotive substitutes will work for long. Each solenoid has 2 small posts for activation. It takes a + and - at the small posts to trigger the solenoid to close the contacts between the large posts. The - (negative) side of the solenoids activation feed is daisy chained together... all solenoids share a common source or wire from the F&R ms by way of the key switch (negative).The reverse buzzer is always connected to the +36v side, when the FNR is on reverse, the other side of the reverse buzzer is connected to B- by the way of the Motor Stator coil. |
10-05-2016, 05:00 PM | #3 |
Not Yet Wild
Join Date: Aug 2015
Posts: 25
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Re: Having trouble understanding 1987 club car
Thank You very much. I don't know why that was puzzling me. It all makes since now. I did search the forum but didn't really find the answer. Thanks
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10-08-2016, 06:49 AM | #5 |
Not Yet Wild
Join Date: Aug 2015
Posts: 25
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Re: Having trouble understanding 1987 club car
So voltage is present on the motor as soon as the master solenoid is activated, only the current is reduced by the resistance of the coils. Correct? And, the lower current is what controls the speed? Thanks.
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10-08-2016, 07:37 AM | #6 |
Gone Wild
Join Date: May 2015
Location: Central Florida
Posts: 2,114
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Re: Having trouble understanding 1987 club car
No, only when the first speed solenoid is activated. 36 volts is being closed, but due to all the resistors that voltage is being reduced so that the cart accelerates smoothly.
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