js5020 111 #1 Posted December 22, 2019 Anyone ever try getting different top speed choices? What I'd like is a faster reverse, it's painfully slow at 3 mph I don't want to go crazy maybe 4 or 5 mph would be great even if it meant giving up some on the forward side. I know a few of you have a lot of experience with the hydro internals and probably know off the top of your head of it is possible. Share this post Link to post Share on other sites
wallfish 17,079 #2 Posted December 22, 2019 I'm kind of guessing since my hydro experience is very limited but... Could the linkage be worn or sloppy which is not moving the lever on the trans (which controls the speed) as far as it can go and or to it's full capacity of movement? Lift the rear wheels and sit it up on jack stands. Now you can manipulate the linkage by hand while watching it. If that lever and linkage on the trans can move a little farther, it will increase the speed. You can probably do it without lifting it and the tractor running too but but proof is in the pudding if you can actually see if it increases in speed. Follow the ENTIRE linkage from the speed control lever all the way to the trans. Lots of those little worn areas add up and by the time it controls the speed, you loose some because everything isn't tight anymore. It's a fine line between adjusting for neutral and getting full operating speed when the parts are worn. 4 Share this post Link to post Share on other sites
js5020 111 #3 Posted December 22, 2019 This is not the case, it has a new nylon slide and eccentric pin and forgot to mention its a 16 auto. Specs I found say 7 forward and 3 reverse. Share this post Link to post Share on other sites
pfrederi 17,875 #4 Posted December 22, 2019 Nothing simple comes to mind. You would have to get the swash plate to tip further in reverse mode. Spec is 3.5 mph reverse. if you want painfully slow try a gear drive about 2.5 mph. 2 Share this post Link to post Share on other sites
wallfish 17,079 #5 Posted December 22, 2019 Or, Larger tires. 23" to 26" tires would increase ground speed about 1 mph 3 Share this post Link to post Share on other sites
Ed Kennell 38,658 #6 Posted December 22, 2019 Each 1" increase in tire OD will get you about a 4% increase in ground speed. 1 Share this post Link to post Share on other sites
Pullstart 63,096 #7 Posted December 22, 2019 Could the pulley be overdriven, or would that be to strenuous on the pump and internals? Share this post Link to post Share on other sites
pfrederi 17,875 #8 Posted December 22, 2019 Pull the hydro motor and rotate it 180 degrees you should get 7 mph in reverse....Unfortunately only 3.5 forward.... 1 5 Share this post Link to post Share on other sites
tom2p 2,394 #9 Posted December 22, 2019 5 minutes ago, pfrederi said: Pull the hydro motor and rotate it 180 degrees you should get 7 mph in reverse....Unfortunately only 3.5 forward.... 2 Share this post Link to post Share on other sites
