Wisconsin Ron Posted October 16, 2021 Share Posted October 16, 2021 Run a later 1680 and there is a double v belt running from hydro drive pump to a small pump under the hyd reservoir. It looking rough kinda like it saying change me. Do all axial flow run this setup? Looks like that hydro pump has to be dropped to change belt. Somebody said there a coupling in there also that should be replaced. Anything else to watch for or any tips, ideas, or shortcuts would be much appreciated. Link to comment Share on other sites More sharing options...
Alberta North Posted October 16, 2021 Share Posted October 16, 2021 If I recall correctly, the hydro pump doesn't need to be removed completely. I believe you can work the belt thru after sliding over the hydro splined adapter. On my 2188 the splined coupler that drives the hydro stripped. It's greasable but tough to get at. Check for slack in that coupler, when it gets too worn you need to replace the hydro shaft as well! Link to comment Share on other sites More sharing options...
SDman Posted October 16, 2021 Share Posted October 16, 2021 Look at the pulley in this picture…the hydro pump fits into the splines in the middle of it. Take the 3 bolts in the pulley/hub loose, get a big bar and slide the pulley/hub towards the hydro pump. You will have a gap big enough to get the belt in/out of there. Also, since it’s a double-v belt, do yourself a favor and remove the RPM sensor at the bottom of the housing…it’ll give you a little more room to work the new belt around the pulley. Link to comment Share on other sites More sharing options...
ksfarmdude Posted October 16, 2021 Share Posted October 16, 2021 This is what happens to the splines this one stripped out going down the road Link to comment Share on other sites More sharing options...
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