Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 2, 2006 7:29:49 GMT
My wipers are operating ok, but I am curious to know how the self parking operates. There are 4 wires between the switch and the motor plus earth. There is no internal wiring shown on the diagram, so how do the wipers go through their bizarre ritual before coming to rest?
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 2, 2006 8:49:47 GMT
The usual way is for the internal plastic gear wheels that are inside have tracks built in so that while the motor is running, it is controlled by one of the extra wires you see. When this is broken ,or switced off then the other circuit is in control sending the signal to the circular internal tracks. Hence the ritual. When the track is reached then it is switched off and can only be started with the first control wire.
|
|
|
|
Post by Phil Nottingham on May 2, 2006 18:05:52 GMT
I do not know exactly how it works but the switch puts the motor into reverse when switched off via a separate supply up the back of the motor inside and then out at the wheel box which connects to a limit switch with a knurled nut on the end. The contacts invariably corrode and thus the self parking does not work. Alternativley the linkage partially seizes, the bunch of bullets connectos corrode or the switch fails - in that order. The motor generally lasts well unless run for along trime with the foregoing faults
|
|
