2007 Toolcat - no traction, stiff suspension, differential lock?

laurencen

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Joined
Feb 19, 2007
Messages
809
Location
saskatchewan Canada
Tractor
Bobcat Toolcat 5600T Kioti CK20, Cat D2 dozer, Cat 420 tractor loader, Deer 644E loader, Bobcat E32 mini and Bobcat 590 skidsteer, Toro Groundsmaster 325D
its been a few years since I looked at the locking axle but this is how I recall it, the wheels have to be straight and normal steer setting, low speed and on mine it was hit and miss, my rear left steering was not aligned due to changing the bearings on the pinions, the original bearings were seized solid and axle would not turn,

short story the wheel alignment is a potentiometer on the knuckle, I spent a few hours tinkering to get it to light with wheel straight, its not as simple as it seems the dealer can set it but a few hundred dollars.

locking is by hydraulic pressure to the axle, front and rear can be locked as they are the same they do not run the line to front. I played some with a hand pump and successfully locked the axle manually, planned on adding a Tee to lock the front but when the drive motor started floating I traded it off.

the service manual had the details in how the locking works but I sent it with the trade.

not sure I would weld it could end up with a whole new issue thats not reversible
 
  
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Mudninja

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Oct 6, 2021
Messages
11
Tractor
Bobcat Toolcat 5600
Actually got more time on the ToolCat last week. Just had a new dump bed made for it. The original was a rusted mess. Like everyone states, when the 2 wheel steering is on and the rear wheels are straight, I actually could tell a difference. Still had to be careful with unlevel ground, but something actually seems to be improving traction in the rear. could be the added weight I had in the bed even. Everyone keeps saying there is a line running to the rear axle, but I can't find it. Even the service manual only talks about a "brake" line. Nothing about a differential hydraulic line. I am thinking maybe my series didn't have that option. Looks to be some type of auto locker like in a car, where it may limit slip if the conditions are perfect.
 

laurencen

Platinum Member
Joined
Feb 19, 2007
Messages
809
Location
saskatchewan Canada
Tractor
Bobcat Toolcat 5600T Kioti CK20, Cat D2 dozer, Cat 420 tractor loader, Deer 644E loader, Bobcat E32 mini and Bobcat 590 skidsteer, Toro Groundsmaster 325D
my 2005 series A had the diff lock, solid axle, its been a few years since I played with it but both front and rear axle are the same, both can be locked and I did use a portapower to lock the front, at that time I was going to add a tee to the line and valve so when stuck I could lock both axles, I did a post on this at that time

My service manual had some info in there but I passed it on to the new owner, I will look on line for it again and see what is there

here is one discussion toolcat 5600 diff lock.
 
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