Service & Maintenance Question
I have an RZ4621 that is having issues in not being able to go up hills. I have replaced the drive belt, and purged the hydrostatic transmission. My concern is the tension of the drive belt. It appears to be "locked" in place, the only way I can increase or decrease the belt tension is via a hammer. The repair videos show this as being able to be moved by hand, which is logical having the spring providing the necessary correct tension.
How do I free up the tensioner so the spring provides the proper amount on tension to the drive belt? I assume it has to do with loosening the nut shown on the attached photo, however do I loosen the upper or lower nut? I tried both a bit to no avail, however I didn't want to lose any structural integrity, so I retightened them.
As an aside, when I increased the belt tension via hammer, I no longer experience the power loss on hills.
Thanks in advance,
Dave
Answer
First you need to remove the spring but yes removing the nut and washer will allow to remove the swing arm. Note this is a through bolt setup so you need to hold one side while loosing and removing the other side. Once removed the bushing needs removing and see what binding it to the swing arm. Maybe so rusted that you will need all the parts associated with the swing arm.
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That appears to have worked, thank you very much for your guidance.
Dave
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