Schrumgmc 150 #1 Posted February 25, 2017 When I push down on the parking brake it goes faster? Anyone have that happen? What could it be? We just put a new drive belt on it Share this post Link to post Share on other sites
Ed Kennell 37,956 #2 Posted February 25, 2017 Do you have the new belt under or over the idler pulley? 1 Share this post Link to post Share on other sites
Schrumgmc 150 #3 Posted February 26, 2017 I believe under? Should it be over it? Share this post Link to post Share on other sites
can whlvr 993 #4 Posted February 26, 2017 is this a hydro,an 8 speed brake has nothing to do with the belt Share this post Link to post Share on other sites
pfrederi 17,627 #5 Posted February 26, 2017 Hydro go under the idler gear drives over...again what kind of tractor (Model #) are we dealing with. Share this post Link to post Share on other sites
Schrumgmc 150 #6 Posted February 26, 2017 It's a Charger 10. Automatic drive, when I push down on the parking brake it goes a lot faster but when I let off it goes slow as hell. I think the belt routing is wrong? Share this post Link to post Share on other sites
953 nut 54,943 #7 Posted February 26, 2017 4 minutes ago, Schrumgmc said: I think the belt routing is wrong? Share this post Link to post Share on other sites
daveoman1966 3,745 #8 Posted February 26, 2017 Maybe you have the wrong belt.....You should use WHEELHORSE belt # 7478... here it is: 7478 BELTS SEARCH RESULT Belt sizes ( outside length and width in inches )Li = Inside Length; Lp = Pitch Length; Le = Effective Length; Sec = Cross-section; Wp = Pitch Width; Desc = Description; R/B = Number of Ribs or Bands; A = Angle; Th = Thickness; † = Cross-section; ‡ = Thickness OEM Part No L W Desc Notes Sec Th Wp R/B A Li Lp Le ROTARY 7478 35 0.5 TORO 7478 84.22 0.625 HB/5L WHEEL HORSE 7478 84 0.625 Go To Belts Pick List Share this post Link to post Share on other sites
Schrumgmc 150 #9 Posted February 26, 2017 I'm using a 5/8 by 84 belt Share this post Link to post Share on other sites
pfrederi 17,627 #10 Posted February 26, 2017 (edited) Did this just happen?? Check the spring (goes from the idler pulley linkage to the brake arm coming out of the tranny.)did it break /stretch?? When you push down on the brake lever you are helping the spring put tension on the belt when you release there may be slippage if the spring is bad. (Note the belt passes under the idler pulley) Edit Second picture give a better view of teh spring. That spring is all there is to apply tension to the drive belt Edited February 26, 2017 by pfrederi 1 Share this post Link to post Share on other sites
Schrumgmc 150 #11 Posted February 26, 2017 Thanks man. Just what I needed, where can I buy a spring? 1 Share this post Link to post Share on other sites
pfrederi 17,627 #12 Posted February 26, 2017 #6135 still from Toro about $8. the one in the second picture i just got from my dealer about 2 months ago 1 Share this post Link to post Share on other sites
