cat man 137 #1 Posted April 13, 2021 well today ill be taking my mower deck off and removing the top cover to see what all the banging noise is wish me luck i know it has 3 blades 1 2 Share this post Link to post Share on other sites
953 nut 55,321 #2 Posted April 13, 2021 Could be a weak spring, idler pulley on its last legs or an old belt that is in need of replacement. Good luck! 3 1 Share this post Link to post Share on other sites
Lee1977 6,667 #3 Posted April 13, 2021 You will get a knocking sound if a piece of the inside of the belt is missing. 2 1 Share this post Link to post Share on other sites
Jeff-C175 7,202 #4 Posted April 13, 2021 2 hours ago, cat man said: banging noise Hopefully not the wrong blades, too long and hitting! That would be real bad. They could be badly out of balance also. Remove the belt to give the spindle bearings the 'wiggle test'. Sometimes the tension of the belt can mask worn bearings. They should all (including the idler) turn smoothly and be silent. If you feel any roughness or noise when turning by hand, time for some bearing replacements. 2 1 Share this post Link to post Share on other sites
cat man 137 #5 Posted April 13, 2021 ok thanks all for the hints of what it may be ill let you know what i find Share this post Link to post Share on other sites
cat man 137 #6 Posted April 13, 2021 ok yall i got this out of my spindle is there 2 bearings on each end or do i need to replace this whole part Share this post Link to post Share on other sites
Jeff-C175 7,202 #7 Posted April 13, 2021 (edited) 5 hours ago, cat man said: 2 bearings [one] on each end Is the shaft loose and wobbly? Does it turn smoothly or is it 'gritty' and 'crunchy' when you turn it? Most likely 2 bearings, but Cat man, ya got me on that one. I'm not familiar with the older style decks. Suggest you go to the manuals section of the forum and download the illustrated parts list for your deck so you can see what's in there. Edited April 13, 2021 by Jeff-C175 1 Share this post Link to post Share on other sites
cat man 137 #8 Posted April 13, 2021 one of the bearings is loose wobbles a bit gritty when you turn it but ill replace both bearing or the whole thing in my hand they are pressed in and i dont have a press Share this post Link to post Share on other sites
76c12091520h 3,623 #9 Posted April 14, 2021 3 hours ago, cat man said: one of the bearings is loose wobbles a bit gritty when you turn it but ill replace both bearing or the whole thing in my hand they are pressed in and i dont have a press That is a one piece assembly, I have them in stock if you need some. 4 1 1 Share this post Link to post Share on other sites
cat man 137 #10 Posted April 14, 2021 K&B horse parts you have the whole spindle or the part i have in my hand ? Share this post Link to post Share on other sites
76c12091520h 3,623 #11 Posted April 14, 2021 7 hours ago, cat man said: K&B horse parts you have the whole spindle or the part i have in my hand ? Both 1 Share this post Link to post Share on other sites
cat man 137 #12 Posted April 14, 2021 how much for whats in my hand Share this post Link to post Share on other sites
76c12091520h 3,623 #13 Posted April 14, 2021 pm sent. Share this post Link to post Share on other sites
haydendavid380 759 #14 Posted April 16, 2021 A bad belt can make some bad vibrations and nasty noises. I thought my whole deck was about to come apart before I changed mine on the 312. Share this post Link to post Share on other sites
