Right Hand Final Drive ASV RC 100

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Iseman77

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Joined
Sep 21, 2022
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4
New to the Forum, I just inherited a ASV RC 100. Seems the right hand track is not being driven in forward. I positioned the machine on an incline with a loaded bucket, the left track will dig in and spin, nothing from the right track. Put up on jack stands, left track rotates, right track will rotate but at half the speed of the left. Steering is very awkward and seems the right track is not being driven. I can get the right track to spin when in reverse. Any suggestions on trouble shooting before I send the drive in for overhaul. Your help is appreciated.

Jon
 

TDB2

Member
Joined
Jun 7, 2022
Messages
10
New to the Forum, I just inherited a ASV RC 100. Seems the right hand track is not being driven in forward. I positioned the machine on an incline with a loaded bucket, the left track will dig in and spin, nothing from the right track. Put up on jack stands, left track rotates, right track will rotate but at half the speed of the left. Steering is very awkward and seems the right track is not being driven. I can get the right track to spin when in reverse. Any suggestions on trouble shooting before I send the drive in for overhaul. Your help is appreciated.

Jon
I suggest that you look into your valve body that controls the drive motors. I recently purchased a PT110F that had low pressure on the lift arm hydraulics. Figured that the pump was bad. Took the pump out and apart and it all looked very good. Put it all back together and no change. I used the trouble shooter in the book or service manual and and a pressure guage (and another set of eyballs to read the guage) was able to pinpoint the problem to 1 single relief valve on that circuit. Not knowing what to do I removed this valve and cleaned it with carb cleaner and looked it over. I did not see anything stuck in it and it did not have a broken spring. I reassembled it and installed it and set the pressures according to the service manual and it worked perfectly. I tell you all this because I am not full of BS here. This took me a while. These valves are very sensitive to any kind of debris in them. A blown hydraulic line and then being replaced in such a dirty enviornment like skid steers and it would only take a small piece of anything to screw it up. It could be a huge co$t savings for you to check this first before you just drop $7500 to replace the drive. Please note that the drive could still be bad but I think there are ways to trouble shoot that as well after you determine that the control valve is functioning properly. I am not a mechanic but I can read and trouble shoot. You can do this. Let me know what you find out. These are great machines if you practice good maintenance.
 
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Iseman77

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Sep 21, 2022
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4
Did some trouble shooting after talking to Hydraulic Tech. Blocked off drive motor hydraulic lines. Engine should die when trying to turn track. The tandem pump only whined. Tandem pump is shot. Sent out for estimate, unit was BER, had to purchase a remanufactured pump. Waiting for it now.
 

Jim2233

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Nov 13, 2023
Messages
2
Did some trouble shooting after talking to Hydraulic Tech. Blocked off drive motor hydraulic lines. Engine should die when trying to turn track. The tandem pump only whined. Tandem pump is shot. Sent out for estimate, unit was BER, had to purchase a remanufactured pump. Waiting for it now.
Are you happy with the reman unit? Where did you get it? I'm about to go through the same thing.
 
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Iseman77

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Sep 21, 2022
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Are you happy with the reman unit? Where did you get it? I'm about to go through the same thing.
So far so good, I did an exchange with Loader Parts Source out of Elkhart Indiana. I think it was $4200 and fairly easy to deal with.
 

Jim2233

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Nov 13, 2023
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2
So far so good, I did an exchange with Loader Parts Source out of Elkhart Indiana. I think it was $4200 and fairly easy to deal with.
Thanks for replying. That sounds pretty expensive for a reman, but if it's working I guess it's worth it. I paid $1850 for a reman but fed ex lost it. I canceled it and bought a brand new one from vine and branch supply. I'm waiting for it to arrive. Fingers crossed .
 

Socketking

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Joined
May 29, 2024
Messages
2
New to the Forum, I just inherited a ASV RC 100. Seems the right hand track is not being driven in forward. I positioned the machine on an incline with a loaded bucket, the left track will dig in and spin, nothing from the right track. Put up on jack stands, left track rotates, right track will rotate but at half the speed of the left. Steering is very awkward and seems the right track is not being driven. I can get the right track to spin when in reverse. Any suggestions on trouble shooting before I send the drive in for overhaul. Your help is appreciated.

Jon
It sounds like you're having issues with the right-hand final drive on your ASV RC 100. Given the symptoms, it could be a problem with the hydraulic motor or internal components of the final drive. Here are a few troubleshooting steps you might consider before sending the drive in for an overhaul:

  1. Hydraulic Fluid Levels and Quality: Ensure that your hydraulic fluid levels are correct and that the fluid is clean. Contaminated or low hydraulic fluid can cause performance issues.
  2. Check for Leaks: Inspect the hydraulic lines and connections for any signs of leaks. Leaks can lead to a loss of pressure and reduced performance of the final drive.
  3. Compare Pressures: If you have access to a hydraulic pressure gauge, compare the pressures between the left and right final drives. A significant difference in pressure can indicate a problem within the hydraulic system or the final drive itself.
  4. Inspect Drive Motors: Sometimes, the drive motor on the affected side may be malfunctioning. Ensure there are no obstructions or damage that might hinder its operation.
  5. Internal Inspection: If these initial checks don't reveal the issue, you may need to inspect the internal components of the final drive for wear or damage.
For high-quality replacement parts and expert advice, I recommend checking out final drive motors from Precision Final Drives. They offer a range of products and support that can help you find the right solution for your ASV RC 100.

Good luck with your troubleshooting, and I hope you can get your machine back to full functionality soon!
 

Centexequipment

Active member
Joined
Dec 13, 2023
Messages
41
Also pull the case drain hose off the motor and cap it. if you get a huge amount of oil out of the fitting in the motor while engine is running then you've probably have a bad drive motor
 
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