TORO 3100 hydraulic problem Cancel The title field is required!

1. Stephen Lane

   

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   6/25/2015 11:06 AM

   I am having a problem with hydraulics pulsing/thumping when driving forward/reverse in 1 or 2 gear. Would this be a problem with the valve bank?
   
   Steve Lane, CGCS
   McCullough's Emerald Golf Links

   
   
   
   
2. Wade Borthwick

   

   0 posts
   
   6/29/2015 7:06 AM

   I would start with checking hydraulic fluid level, then move to engine RPM's and making sure they are stable. It sounds more like a supply problem (all directions and all speeds) than a valve problem. To properly diagnose the problem more information is needed, Model and first two digits of S/N. Severity of the problem is it affecting performance or more of just an annoyance?

   
   
   
   
3. Stephen Lane

   

   0 posts
   
   7/1/2015 10:07 AM

   Sorry, I didn't give enough info. Originally machine was fine then right front motor locked up - replaced that with a new motor. After installing new motor machine would go but there was a pulse/surge. We have since found out that the new motor is sticking (disconnected hydraulics) to give the pulse/surge feel all other motor spin free. I have not opened up old or new motor to see what is causing the failures? I guess I should open up old motor? I was wondering if something was breaking in valve bank and since the piping to right front motor is closest could parts be getting in and causing failure? Also the brakes were taken off to check and make sure that wasn't problem. Not sure if taking apart either motor is correct or should I look at something else?

   
   
   
   
4. Hardy Andrew

   
   7/2/2015 9:07 AM

   We just replaced a front hydraulic drive with a sheared gear tooth. The sheared part went through the entire hydraulic system. We had same symptoms you are seeing

   
   
   
   
5. Stephen Lane

   

   0 posts
   
   7/17/2015 11:07 AM

   Thank you for your help. We found that the rear wheel motor drive thrust bearing fell apart and parts made it through to the front right motor breaking the link drive and jamming up a rotor. The rear motor also had damage, so after cleaning out entire hydraulic system ( we hope ) and repairing the newest wheel motor, the unit is back up and running. My thought/question is should I replace the $20 thrust bearing every 2000? hours to possibly save thousands of dollars in parts and down time? A person told me that the front motors are more reliable than the rear and he would eliminate the rear if I didn't need 3wd. This machine had 3400 hours on it.