laopi Posted June 14, 2021 Report Posted June 14, 2021 Hi, I had a 45lbs Minn Kota motor with Power Drive foot pedal, the propeller did spin, left and right turn working. I disassembled the motor, and measure the voltage between the brushes, it shows about 12.5v, so I assume the food pedal working, and I measured the resistance between two coppers, the value is the same, the springs look fine, so I assume the armature is working. I heard most of issue will come from the brushes, but I only find the brush become a little bit curve instead of flat, is it the issue? any thought?
OhioFisherman Posted June 14, 2021 Report Posted June 14, 2021 Limited experience, but those brushes are what I would call a wear item, they may start off flat, but wear into the shape of the commutator. Those don't look bad to me, but I don't know the original length. What were the issues with the motor?
laopi Posted June 14, 2021 Author Report Posted June 14, 2021 9 minutes ago, OhioFisherman said: Limited experience, but those brushes are what I would call a wear item, they may start off flat, but wear into the shape of the commutator. Those don't look bad to me, but I don't know the original length. What were the issues with the motor? No experience about it, does the brush length matter?
OhioFisherman Posted June 14, 2021 Report Posted June 14, 2021 Well yes, not on trolling motors but I have seen some worn so badly the motor wouldn't run.
shanty gord Posted June 14, 2021 Report Posted June 14, 2021 Are the magnets cracked or shifted in the housing
North Channel Cottages Posted June 15, 2021 Report Posted June 15, 2021 I had something similar with mine, it turned out to be the "mother" board. Easy enough to replace. Call Bay Distributors in North Bay and there's a guy there who should be able to tell you the issue over the phone. +1 705-476-6010 1
misfish Posted June 15, 2021 Report Posted June 15, 2021 6 hours ago, North Channel Cottages said: Call Bay Distributors in North Bay and there's a guy there who should be able to tell you the issue over the phone. +1 705-476-6010 These guys are still going? Wow,I used them many years ago to get parts for my big jon rigger. It was great service.
mitch seguin Posted June 15, 2021 Report Posted June 15, 2021 X2 on the motherboard being the likely culprit. 1
laopi Posted June 15, 2021 Author Report Posted June 15, 2021 15 hours ago, shanty gord said: Are the magnets cracked or shifted in the housing magnets is good.
laopi Posted June 15, 2021 Author Report Posted June 15, 2021 12 hours ago, North Channel Cottages said: I had something similar with mine, it turned out to be the "mother" board. Easy enough to replace. Call Bay Distributors in North Bay and there's a guy there who should be able to tell you the issue over the phone. +1 705-476-6010 Thanks, I'll ask soon. peter
AKRISONER Posted June 15, 2021 Report Posted June 15, 2021 What gen powerdrive? If it’s a Gen 1 you are basically screwed. gen 2 the motherboards can be replaced for about $3-400
laopi Posted June 15, 2021 Author Report Posted June 15, 2021 13 minutes ago, AKRISONER said: What gen powerdrive? If it’s a Gen 1 you are basically screwed. gen 2 the motherboards can be replaced for about $3-400 Gen 1
Hack_Fisherman Posted June 15, 2021 Report Posted June 15, 2021 (edited) 11 hours ago, mitch seguin said: X2 on the motherboard being the likely culprit. X3 The brushes and armature look fine to me. Lots of life left in the brushes I’d say. Edited June 15, 2021 by Hack_Fisherman
Hack_Fisherman Posted June 15, 2021 Report Posted June 15, 2021 Do you have a spare foot pedal or know someone who has the same pedal to rule out whether it’s in the pedal or main unit.
AKRISONER Posted June 16, 2021 Report Posted June 16, 2021 If it’s a gen 1 it’s the pedals fail with the motherboard. The pedals are impossible to get. Basically your only option is to replace the motherboard and buy a new pedal. At that point you’re almost at the price of a new powerdrive. I went through this myself and Jimmer did too
Hack_Fisherman Posted June 16, 2021 Report Posted June 16, 2021 1 hour ago, AKRISONER said: If it’s a gen 1 it’s the pedals fail with the motherboard. The pedals are impossible to get. Basically your only option is to replace the motherboard and buy a new pedal. At that point you’re almost at the price of a new powerdrive. I went through this myself and Jimmer did too Yup I was looking for a pedal and ended up picking up a full setup. Figuring it was a dead pedal on my first, it actually ended up being something in the drive. Left me with 2 good pedals. Opposite the usual. That’s why I said try to rule one out
smitty55 Posted June 16, 2021 Report Posted June 16, 2021 On 6/14/2021 at 2:09 PM, laopi said: No experience about it, does the brush length matter? The main issue with brush length happens when they get short enough that the spring doesn't put enough pressure to force good solid contact with the commutator. Then you get lots of sparking which cause more damage. Those brushes look fine as does the commutator. Seeing as the motor still works fine I agree that the issue is with the pedal itself, whether it's the motherboard or crappy contacts on the other switches for turning. 1
manfish Posted June 16, 2021 Report Posted June 16, 2021 I have a pedal thats never been used from a co pilot minkota.I just use the remotes. You can have it
laopi Posted June 16, 2021 Author Report Posted June 16, 2021 3 hours ago, manfish said: I have a pedal thats never been used from a co pilot minkota.I just use the remotes. You can have it where are you located?
AKRISONER Posted June 16, 2021 Report Posted June 16, 2021 4 hours ago, manfish said: I have a pedal thats never been used from a co pilot minkota.I just use the remotes. You can have it You’ll need to check cross compatibility. minkotta are real dinks about this stuff I had a gen 1 terrova ipilot and bought a terrova pedal, same connector same everything except it included an anchor button on the pedal and it wouldn’t work. trust me…I’ve been through my share with those guys. There’s a Garmin on the front of my boat now because of it.
pics Posted June 18, 2021 Report Posted June 18, 2021 Could a technician fix that problem or is the motherboard sealed in epoxy? Quite often with electronics its a cheap part failure but an expensive fix..
AKRISONER Posted June 18, 2021 Report Posted June 18, 2021 14 minutes ago, pics said: Could a technician fix that problem or is the motherboard sealed in epoxy? Quite often with electronics its a cheap part failure but an expensive fix.. nope, can only be totally replaced. very pricy 1
smitty55 Posted June 19, 2021 Report Posted June 19, 2021 7 hours ago, pics said: Could a technician fix that problem or is the motherboard sealed in epoxy? Quite often with electronics its a cheap part failure but an expensive fix.. You are right about how it can often be a cheap part that fails on a pcb, capacitors are often the most common failure. Most boards are sealed with conformal coating which can be removed with a strong solvent like acetone. For the most part manufacturers don't repair them, it's just a replacement. However, if you could do a visual inspection on the board and spot an obvious fault like a swollen capacitor can or a dark burnt looking component like a diode or even a burnt track then there would be a possibility of repair without even needing a circuit diagram. That being said I have no idea of the history on the failure of these boards, it could also be an IC in which case there'd be no chance of repair. 2
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