This mower is new to me. The deck is off, and the belts are on it. With the motor running, the motor pulley isn't turning. When the f/r lever is moved the motor dies with one or the other pedals pushed in. Do both have to be down?
#8
Scrubcadet10
So with the engine running, the pulley that is on the engine crankshaft isn't spinning?
Does one belt control forward and one reverse? Reverse speed seems ok, but forward is very slow.
#12
StarTech
No. This mower uses what appear to be a single speed CVT transaxle system. It sounds like the forward gear is either not being fully engaged or there maybe a off chance the brake caliper is partially struck.
Without having seen one these in my shop I can only go by the IPL of the transaxle but based on what I have seen with the MTD CVT transaxle I would think there is a bad forward gear and shift keys.
#13
Hammermechanicman
The pedal on the left is the clutch, the right one is the brake. Clutch is like a car, pedal up is the drive position. If you put gear lever in neutral mower should roll freely. Move lever to a forward gear position and mower sould not roll easily. Put mower in neutral. Clutch pedal down start the engine. Slowly release the clutch pedal. If the engine stalls you have a seized pulley or idler on one of the belts. Probably the CVT pulley.
I was wrong about the forward/ backward speeds. They are about the same. Slow. The variable shift lever doesn't have much if any effect about 2/3 to full forward.
Wouldn't the belt affect the speed, or how can I adjust the speed? I don't think it is the transmission since it moves smoothly and consistantly.
With the motor revved up it makes a loud shrill sound but not at slower speeds. Pulley?
Hope these pictures help. I couldn't resize them enough to upload.
#15
StarTech
Well I think you are just guessing at what wrong now. As said for bearing squealing you need check the three idlers and the variator pulley (the sliding sheave pulley) bearings. The speed adjustment is automatic as you shift from lower speeds to higher speeds. This done as tension is applied the variator making the engine to variator belt tighter thus slide the center of the variator down tightening the variator to transaxle belt. Basically the engine pulley side gets smaller and the transaxle get larger. This changes the speed at which the variator driven. Ie It spins faster as the pulley get smaller.
#16
Hammermechanicman
You have 2 things in the drivetrain. The axle has the forward and reverse gears. The speed is controlled by the 2 belts in the CVT. You probably need to replace the 2 belts and check the belt idlers and make sure the CVT pulley assy is working properly.
#17
StarTech
Here is the variator layout for those that are trying to troubleshoot.
Item 13 is the motor pulley, top drives the transmission, bottom to the blade drive. Item 31 is the variable pitch pulley. I like these drive setups but they do require some experience to keep them running right.
#24
tom3
Here's a video on something similar. Skip to 4 minutes in if you don't want the BS from Taryl. ( But that's the best part) 13 to 16 minutes in really shows the vari-pulley.
Sorry I took me so long was enjoying the 2+ hours of hang time but I never hit the bottom, just replanted my feet on top of the cliff when I came back down.
Sometimes a tech with 40 yrs of working equipment does get frustrated too. Last year I shot my pond's water full of holes over the idiot vendor not correcting a problem. It felt so good to unload that 12 ga pump shotgun.
#26
tom3
Just got back from Rural King a while back, got a 12ga semi auto shot gun. Can't wait to get out at son's house in the sticks and wake up all the squirrels with it.
Just got back from Rural King a while back, got a 12ga semi auto shot gun. Can't wait to get out at son's house in the sticks and wake up all the squirrels with it.
Better keep the stock tight to your shoulder as they kick like a mule but not as bad the 10 and 6 Ga ones. I use max power express loads as most time I using T shot in mine and bruised shoulder a few times until I learned better. Even being a Mossberg 500 pump I seldom need more than one shot to take out the varmint. A habit I pickup from having a single shot was make sure that shot was on target everytime.
Better keep the stock tight to your shoulder as they kick like a mule but not as bad the 10 and 6 Ga ones. I use max power express loads as most time I using T shot in mine and bruised shoulder a few times until I learned better. Even being a Mossberg 500 pump I seldom need more than one shot to take out the varmint. A habit I pickup from having a single shot was make sure that shot was on target everytime.
I practiced skeet a lot this year before dove season.i was always a terrible flying shot, but i was able to knock 10 birds out the sky out of 11 this year.
#30
StarTech
We need to get back the subject at hand and that is the JD RX75 problem.
#31
tom3
Shoot it with a 12 ga, problem solved. OK, I'm done with the BS, carry on.
The Taryl video probably will solve the problem, correct belts and go through the pulleys and idlers.
