Mowing 261 Grooming Mower Info.

   / 261 Grooming Mower Info. #1  

317140

Bronze Member
Joined
Apr 9, 2006
Messages
87
Location
North Carolina
Tractor
John Deere 3520
I picked up a used 261 grooming mower with a bad gearbox. I have torn it down and ordered new bearings and seals. The gears look to be in near perfect condition. I am waiting for the parts to come in. I am looking for a diagram or info. on how the gearbox sets up. Now it has shims on the shaft and I am wondering how I need to set it up to run like it should. Thanks
 
   / 261 Grooming Mower Info. #2  
I would think that info would be available at the dealer or maybe online at the dealers website? Ken Sweet
 
   / 261 Grooming Mower Info.
  • Thread Starter
#3  
I appreciate the reply. I was just wondering if anyone had done their own overhaul of the gearbox. Wondering what clearances are critical and how to set it up. I have just never done a gearbox and was looking for some input.
 
   / 261 Grooming Mower Info. #4  
Most gearboxes require shimming to provide approx. .003" - .005" endplay in the shaft bearings. Also need to provide .005" - .010" backlash in gears. Specs will vary from gearbox to gearbox, but those specs are a good rule of thumb.
 
   / 261 Grooming Mower Info. #5  
If you assemble it, and you run it, and it gets too warm too touch, it needs more shims. Ken Sweet
 

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