Anonymous-0
Well-known Member
On my Cat 931B I had a nagging hyd. leak where 2 steel lines with a flare fitting go together. They are the lines for lowering the loader. I tried to tighten it before but it was already super tight. Today with a good pull on the wrench, I got it to loosen so I took the connection apart and everything looked OK. It might have had a tiny bit of rust on the tapered end that goes in the flared end. I got the nut on the flare end to move and turn a little easier and after cleaning both ends as good as I could, put it back together. Not quite as tight as it was. There is another steel line right underneath it. It was a very small leak but still enough that the top of my final drive case, etc. is covered in dirt because of the oil leak. I spayed some super clean and water over the connection and dried everything off. It didn't appear to leak even when I lifted the front of the machine off the ground at let it sit there for a little while. I put some business card I didn't need right under the connection to check for a leak. No leak. At least not yet. Can some fitting leaks be fixed just by taking them apart and putting them back together without doing much else? Or by not having them super tight? My elbow slammed into the brake pedals when it finally broke loose. Ouch!
The other question is about weld on sprocket teeth. The sprocket rims I got are cast steel and the teeth aren't machined real perfect like bolt on segments. I assumed and was told by the supplier that the teeth will wear in. It's almost like the opening for sprocket teeth is slightly undersize. I left the tracks just a little looser than recommended till the bushings fit the sprocket better. Is this common on cast sprocket rims? It is getting better but I'm just curious. The bushings at first would fit in when at the top of the sprocket but at the bottom the bushing was inline with the point of the sprocket tooth. The teeth weren't perfectly square from one side to the other as well. Like I said it is getting better but I'm wondering if it's just normal for cast sprockets. Thanks for any input. Dave
The other question is about weld on sprocket teeth. The sprocket rims I got are cast steel and the teeth aren't machined real perfect like bolt on segments. I assumed and was told by the supplier that the teeth will wear in. It's almost like the opening for sprocket teeth is slightly undersize. I left the tracks just a little looser than recommended till the bushings fit the sprocket better. Is this common on cast sprocket rims? It is getting better but I'm just curious. The bushings at first would fit in when at the top of the sprocket but at the bottom the bushing was inline with the point of the sprocket tooth. The teeth weren't perfectly square from one side to the other as well. Like I said it is getting better but I'm wondering if it's just normal for cast sprockets. Thanks for any input. Dave