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By esmarkey
Hi, I purchased a used Cub Cadet 750 Challenger that seemed like the belt was slipping so I put a new belt in. It still acts like the belt is slipping but now I am thinking it is the clutch?
What is the best way to remedy this problem?
Can the clutch be rebuilt?
Are there aftermarket clutches available?
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By gridlock
After three years, my Sector completely died. Something caused the hot wire under the seat from the charger to disintegrate, so the batteries weren't being charged. The batteries weren't charging 100% anymore, so decided to convert to lithium.
As most others have done, I went with 4-48v batteries in parallel, as I believe that will be plenty of amp-hours for my needs, but can always add more if needed. I went with LiTime wired CAN batteries and mounted their digital gauge on the dash above the current one, which fit perfectly. I didn't think the existing battery brackets worked well for the new batteries, so made my own out of aluminum L rails, which makes it much more secure (and saves a few more ounces :)). Since I wired them in a 'balanced' configuration, I had to make all new cables from 0/1 gauge wire and 8mm posts. I updated the DeltaQ charger to profile 233. Cleaned everything up (I must have vacuumed 20 pounds of dirt!), put it all together and... wham!
So far, it definitely is better than with the original AGM batteries. Sustains speed better going up hills, and seems to have plenty of reserve current. The difference in weight with 4 LiPo vs 8 AGM batteries surely doesn't hurt!
Thanks to everyone on this forum, but special shoutout to GNFO who was a big help.
A few questions:
In the 'any tips' thread, EVSupport mentioned reprogramming the Sevcon to reflect the new discharge curve of the lithium cells, but I didn't see any more info about that or how to do that. Is there any more info about that?
Have folks replaced the onboard 12v battery, and if so, with lithium? I'm not sure why there is a 12v battery; why didn't they just step down the current of the 48v system to provide power to accessories?
Is there a recommendation as far as charging with the lithium conversion? As far as I understand, it is better to let lithium batteries discharge somewhat (but not completely) than keep them charging all the time. What do you think?
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By Ironeagle
My 2018 Massimo MSU 500 was operating just fine. I parked it for 2 weeks in my shop now the unit starts and runs great but at 18 MPH it cuts out. It's not the seatbelt safety switch that engages at 10 MPH if it is unbuckled. I purchased a new ECU but that did not resolve the problem. No error code is presented. I reset the ECU replaced the fuel injector, coil, sparkplug and spark plug wire. Same response. I don't mind replacing faulty components but don't want to chase parts and hope for the best. Any ideas??
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