See full version: Thread: Wiring a self-parking windscreen-wiper DC motor
When the motor ends up as a short-circuited (sc�d) generator on switching off due to mechanical inertia as per the descriptive notes supplied, the diode - that I mentioned above - may come into play in order to route the sc�d current, without sc�ing the source.
BTW, you may need to edit the site data, viz., erase the extra http:// up front
Marinco�s site has no info covering the installation. more
Thanks, I fixed the link, Edit to add: The "park" circuit should be essentially the same here
Really appreciate your help on this one, but I am not feeling particularly inclined to actually delve into the matter and then determine how mine should be wired up.
The wind-screen wiper motors are 12 V DC, marketed by AFI (a Marinco subsidiary) and have three terminals: (+) , (-) and 'park'.
Getting Started
Skill Level: 4/5
Time to Complete: 5 Hours more
I chose the Imtra Coastal Plus wiper with a pantograph arm and windshield-washer kit. This setup has proved robust. Here are the steps to install it. here
Maintain your forward visibility with a marine wiper system.
After getting caught in a blowing deluge, I decided it would be a good idea to install a wiper/washer system aboard my runabout. Systems are available from companies such as Imtra, Marinco/AFI, Vetus and Schmitt & Ongaro. here
Tools and Supplies
*Imtra Coastal Plus wiper motor ($155)
*Imtra pantograph arm ($105)
*Imtra fluid canister with pump ($95)
*Imtra washer head ($18) *Imtra 6 mm hose ($3 per meter)
*Assorted marine wire connectors, wire and circuit breaker (or in-line five-amp fuse) for 12-volt electrical installation
*Diagonal cutters
*Wire crimpers
*Wire strippers
*Stainless-steel fasteners (for washer reservoir)
*Self-tapping stainless-steel screws (for pantograph mounting plate and motor support)
*Marine silicone sealant (for self-tapping screws)
*Drill motor
*Drill bits: 5/16 inch (for 6 mm washer hose) and 9/16 (for wiper motor shaft)
*A metal ruler (optional, but it makes small measurements reliable)
*Masking tape (to tape area, mark holes and prevent gelcoat damage when drilling)
Whenever installing or replacing wiring or devices, all of the particular parts you utilize must have the appropriate amperage rating regarding the circuit. Regarding example, a 20-amp circuit must have got 12-gauge wiring, which usually is rated regarding 20 amps. When you install 14-gauge, 15-amp wiring about that circuit, you create a open fire hazard because the 20-amp circuit breaker safeguarding that circuit might not shut down prior to the 15-amp wiring overheats. more
Electrical power travels along conductors, for example wires in addition to the metal associates of outlets and sockets. Tight cable connections between conductors generate smooth transitions coming from one conductor to another. But loose contacts act like velocity bumps, restricting typically the flow and producing friction and heat. Very loose connections can cause arcing, by which electricity leaps through the air coming from one conductor to be able to another, creating tremendous heat. here
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Note, however, there is no danger to setting up 15-amp receptacles in 20-amp circuits given that it is completely fine when the plug-in device pulls less power compared to the circuit amperage. In fact, that is fairly normal with regard to 20-amp general-use circuits to be born with 15-amp receptacles. here
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