Question about Craftsman 17.5 hp 42 in. Deck Lawn Tractor - CA Model
Hi, according to your problem first make sure the battery is OK and check the wires are connected properly. Check the engine. You can rotate the engine governor shaft clockwise and tighten the governor lever. You can contact your nearest technician.
according to your problem first make sure the battery is OK and check the wires are connected properly. Check the engine. You can rotate the engine governor shaft clockwise and tighten the governor lever. You can contact your nearest technician.
Posted on Mar 17, 2011
After eading through everything that you have tried... it occurs to me that you have not mentioned the ignition switch...
I believe from what I have saw so far theat you may have fried the switch...check to see if you have power 12dc to the switch....then also check to see if you are getting power out to the starter soleniod...
I am also thinking that the bad switch could be the source of the battery drain...
You could check that by marking all of the wires going to the switch and then disconnecting them...
Just a few things that I can think of off hand that may help you...if I think of more I will post...
Posted on Mar 16, 2011
I know your friend feels bad...using a digital meter you need to follow, from the positive post (disconnected from the battery), the path for continuity-do it in sections, there may be a fusible link burned out past the fuse that burned out. Spend extra time on wiring near the blown fuse as it sounds like on may have burned up internally but the insulation may still be intact.
Posted on Mar 15, 2011
Hi, whenever a supply, battery etc, is hooked up in reverse usually we must expect catastrophic destruction of almost ALL the sensitive, and polarity conscious components.
Often there is Polarity protection, usually by way of a Diode, this may, stop damage, but usually the Diode is not "Fast" enough to prevent damage, and also usually ends in the destruction of this diode, in any event, it will usually go "Open" circuit.
"Letting the smoke out" as we engineers say, is never a good thing, and is also usually the "Tip" of the iceberg so to speak, as if this happens then usually "Other" damage will have been caused too, but not to such a destructive level.
Whenever this type of event happens, the entire board should be suspect, and NOT repaired, unless complete semiconductor & discretes are replaced in totality, and this usually isn't an option, In these cases we usually replace the entire board with a NEW known good unit. As even if successfully repaired, no doubt the board would have been so stressed by the polarity reversal that "Other" components would simply "Fail" over subsequent time.
What to do... Replace that board, and hope that there isn't any Co-lateral damage elsewhere.
Also get a service manual.
Posted on Mar 18, 2011
The fact the battery drains suggests there is a problem somewhere in the wiring. recheck all the fuses for continuity (not just a visual inspection) and i would suggest replacing any relays you can find in the fuse box. when you hook up the battery if there is a relay burned out that is stuck on you just need to feel the top of it to find the culprit as it will be very hot.
I am providing you with the service manual for the motor and shortly i should have the service manual that will include the wiring. there is a fuel shut off relay on the carb and you may want to check that as well.
Posted on Mar 16, 2011
The electronic ignition module and a part of the wiring harness was fried - you will have to replace the module and replace or rewire the harness.
The ignition module can be found here
no direct link - you will have to navigate to your engine CV490, then to Ignition /Electrical section, it's part 21.
I couldn't find an entire wiring harness online - you will have to replace every melted wire yourself.
Posted on Mar 14, 2011
You'll need a meter and you'll have to go through the wiring from one end to the other to find out what fried. The fuse only protects the wiring to a point. It could have burnt out the switch or a contact etc. Only way to tell is to check the wiring from one end through the other to find out where. The start switch would be one good place to start looking. Obviously it isn't getting spark if it cranks but will not run.
Posted on Mar 14, 2011
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Posted on Jan 02, 2017
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