testing ignition switch

dallen54200March 17, 2014

Greetings to all. I have a Craftsman 20.5 HP lawn tractor Model # 917.270840. Can anyone tell me how to check for a faulty ignition switch? Thanks

Thank you for reporting this comment. Undo
justalurker

You need the correct electrical schematic for that exact model tractor and either a test light or an ohm meter and basic automotive electrical knowledge.

Lacking either usually results in a more complicated problem and ultimately a more costly repair.

Sears lists two manuals for the 917.270840... here is the schematic from one manual but it may not be the correct one for your tractor.

Perhaps it would be more prudent for you to post what problem you're having and we might point you to the right place to start diagnostics.

    Bookmark   March 17, 2014 at 2:55PM
Thank you for reporting this comment. Undo
bill_kapaun

Note in the schematic above, that there's a "Truth Table" on the lower left of the page.
That shows what connections should or should NOT be made in the different key positions.

    Bookmark   March 17, 2014 at 6:31PM
Thank you for reporting this comment. Undo
dallen54200

Thanks, I think I figured it out.

    Bookmark   March 17, 2014 at 8:18PM
Thank you for reporting this comment. Undo
mownie(7)

Thank you for sharing your findings with the forum.
That's how this works.

    Bookmark   March 18, 2014 at 1:36AM
Sign Up to comment
More Discussions
Craftsman LT 1000
Craftsman rider LT 1000 917.271851 032502D005822 Engine:...
RSch110856
Craftsman riding mower issues
I have a Craftsman rider model 917.275820. I have had...
dqtmg4
Installing a fuel pump to a gravity fed 12 hp briggs...
I'm in the midst of an engine swap and I would love...
jd108eric
Seized Ariend Snowthrower???
My dad has an Ariens 24" 6hp 2 stage snowthrower,...
andrelaplume2
What happened???
I logged in yesterday after a prolonged absence and...
romore_gw
Sponsored Products
Cheers Multi-Point Pendant by Tech Lighting
$556.00 | Lumens
Kichler 340006 11.81 in. Tiffany Universal Glass Bowl - 340006
$182.70 | Hayneedle
Adagio Cascade Springs Wall Fountain Rajah FeatherStone
SerenityHealth
NX-605 LED Self-Diagnostic Exit Sign, Battery Backup - Single Face, Red Letters
LBC Lighting
Chrome Single Handle Pull Out Kitchen Faucet
MR Direct Sinks and Faucets
Brushed Nickel Roman Tub Faucet
MR Direct Sinks and Faucets
Cheer Pendant by Tech Lighting
$120.00 | Lumens
Laminate Wood Flooring: Home Legend Flooring Pacific Hickory 10 mm Thick x
$2.19 | Home Depot
© 2015 Houzz Inc. Houzz® The new way to design your home™