3720 Rear scv problem
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Thread: 3720 Rear scv problem

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    3720 Rear scv problem

    Hi guys, I have a rear snowblower on my 3720 and it was used for years by a municipality. I am pretty sure everything worked when I bought the tractor but now trying to get the blower running for the season, the electrical system to divert from front to rear doesn't divert. Right now only the front works, which runs the front blade. I changed the DIN connector and the light inside comes on when I flick the switch but the DIN is not plugged into the diverter. When its plugged in no light comes on at all and obviously doesn't divert. It also spins freely on about a 45 degree angle. Can the diverter suddenly stop working or freeze up?

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    So I figured out the manual override button in the brass center of the head on the top. It works and the manifold works for the rear implement, so it seems that however the mechanism works to divert the flow isn't working. Anybody know how it works and what may some my issue?

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    Keeper of the GTT Cookies dieselshadow's Avatar
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    The diverters are known for seizing up internally if they aren’t regularly exercised. You’ll probably need to open the diverted up and carefully remove and clean the spool. Do not use sandpaper, only something like light steel wool. Once working again, make sure to activate it once in a while to keeps things moving around a bit.
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    Quote Originally Posted by dieselshadow View Post
    The diverters are known for seizing up internally if they aren’t regularly exercised. You’ll probably need to open the diverted up and carefully remove and clean the spool. Do not use sandpaper, only something like light steel wool. Once working again, make sure to activate it once in a while to keeps things moving around a bit.
    Thanks. I will try that next chance I get.

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    Captain Hook Kennyd's Avatar
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    Here are some similar threads to read, this can be an issue for all electro-hydraulic valves that are not routinely operated.

    https://www.greentractortalk.com/for...t-working.html

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    Kenny

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