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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Rear axle seals and bearings 743
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<blockquote data-quote="Tazza" data-source="post: 7647" data-attributes="member: 82"><p>It is a HUGE job.</p><p>I have done it twice before but that was on machines i striped down and was able to hang the chain case up in the air to make it easier. The main problem is after you pull the axles out you need to get them back in and align the drive sprockets. You have to lift a 5 or so KG sprocket that has a chain that weighs about the same and line it up. Personally i wouldn't attempt it without a chain breaker. Break the rear chain and the job will be MUCH easier.</p><p>If you do the rear seals and bearings i'd do the fronts!</p><p>You will need to make a jig to turn the wheel hub from the outside while you have a 1 1/8" ring spanner on the inside bolt. The bolts are VERY VERY tight.</p><p>When you have the bolts off, use a bottle jack on its side between the chain case and the axle hub to pull the axle and seal out.</p><p>When its all back in, check for end play, there should be none, if there is you will need spacer washers or a lathe to remove a small amount of the washer to take up the slack.</p><p>Don't be fooled, it is a big job!</p><p>The seals and bearings are common too, so get prices not just from Bobcat. My bearings were 1/4 the price from Bobcat and were just as good. The seals were about the same price. You really should replace the wear sleeves if you are in there.</p></blockquote><p></p>
[QUOTE="Tazza, post: 7647, member: 82"] It is a HUGE job. I have done it twice before but that was on machines i striped down and was able to hang the chain case up in the air to make it easier. The main problem is after you pull the axles out you need to get them back in and align the drive sprockets. You have to lift a 5 or so KG sprocket that has a chain that weighs about the same and line it up. Personally i wouldn't attempt it without a chain breaker. Break the rear chain and the job will be MUCH easier. If you do the rear seals and bearings i'd do the fronts! You will need to make a jig to turn the wheel hub from the outside while you have a 1 1/8” ring spanner on the inside bolt. The bolts are VERY VERY tight. When you have the bolts off, use a bottle jack on its side between the chain case and the axle hub to pull the axle and seal out. When its all back in, check for end play, there should be none, if there is you will need spacer washers or a lathe to remove a small amount of the washer to take up the slack. Don't be fooled, it is a big job! The seals and bearings are common too, so get prices not just from Bobcat. My bearings were 1/4 the price from Bobcat and were just as good. The seals were about the same price. You really should replace the wear sleeves if you are in there. [/QUOTE]
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General Bobcat Skidsteer Forum
Rear axle seals and bearings 743
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