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I have a lazy boy tiller with chaine drive, its liked locked up. it will not engage, any help please ! it does have aplace to put oil on the side of the chine drive house. what kind of oil would it take? may be 90waite.thanks, cobraman

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The gear box can be removed, reset and resealed using gasket magic. It is not a quick fix and during this process I also replaced the tine shaft seals as I had lubricant leaking from the gear-box to the tine shaft. When you are tilling you should avoid rocky areas. It iseems sudden tension due to bouncing is what knocks the chain loose.

DO NOT remove the belt pulley from the top of the gear box. It is unecessary. You must remove the entire assembly from the rear of the machine. It is set in place by 6 bolts and come off as a whole unit. Once it is removed then undo the three bolts and spacers that hold the case in place. Remove the case from the frame by sliding it out the open end. You will have to remove all of the bolts around the outside of the case; a cordless drill really comes in handy here. Lay the case on its side, as you remove the bolts you may experience lubricant dripping from the centers of the removed bolt holes, or at the center holes where the case connected to the frame. This is not a problem as you will need to replace the 90 weight lubricant after you have resealed the case anyway. Once you have removed all of the bolts, using a flathead screwdriver and a mallet or hammer. break the seal around the outside of the case. You may have to go around a few times, but eventually it will pull apart revealing the sprockets, bound chain and remaining lubricant. Since it is open this is an ideal time to check for wear on sprockets and remove any large debris from the case. reset the chain so that the tine shaft moves freely and the corresponding sprockets spin as you move the tine shaft. Using a gasket sealant (Gasket Magic**) put a thick bead of sealant in the center of flat outside edge where the two sides of the case come together. Add a little extra around bolt holes. Replace the two covers snugly together and begin finger-tightening the bolts back into the crank case. Once you have completed this task, go back over the bolts and tighten with a hand wrench. Once the case is back together allow 45m to an hour for the sealant to completly harden before introducing lubricant to the system. Then reattach the case to the rear assembly and then put your tiller back together.

This occurrence seams to be an issue with these machines, however the problem is avoidable as it is persistant use in rocky or hard ground areas which causes causes the system to jump and bind. If you happen upon a hard patch of earth or rocky area, go slow, do not force the tiller and remove any large debris when possible before tilling.

Posted on May 08, 2010

  • misty11656 Mar 14, 2011

    I am working on a tiller for my father-in-law. He says that one side of the tines won't turn. I have disassembled everything except the 2 inside tines. I can't seem to get them off to pull the case apart. I've used a wheel puller with no luck so far. Any suggestions?

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I also have a lazy box 5HP front tine tiller mfg by Parma Tool co with the tines locked up. What I found out was the chain drive which is enclosed in the transmisson case had come off one of the sprockets an caused the tines to lock up. There is no way to access the chain or sprockets as they are enclosed in a sealed case. I am trying to find out if a replacement transmission case is still available. sorry I cant help with this.
John

Posted on Apr 10, 2010

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