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Case 485 Controls, can they be improved.

mhobson

Well-Known Member
Joined
Sep 29, 2016
Messages
160
Location
Vienne, France
Hello, I have had this tractor for some years, for its size it is powerful and solid, but what gets me pulling my hair out is the hand controls. Is there something I can do to improve them. The only throttle is a hand throttle, let go and it springs back to zero, so I need one hand on the steering wheel and one on the throttle. The two levers for the three point linkage drop if released, they will not stay where they were put, except at the bottom, especially if there is any load on the linkage. I have modified the pto lever, because before I modified it it would turn off as soon as the lever was released. I have put a sort of home made ratchet on it which has solved that. But if you are mowing for example you cannot vary the height because one hand has to steer and the other one has to be on the throttle because otherwise it would drop immediately to tickover. I have had Massey and Ford tractors in the past, I have never had these issues, either had a stiff hand throttle or hand and foot throttles. As far as I can see the return spring is on the diesel pump, I am concerned if I remove it there may be problems. Another problem just happened, the 4 speed gear lever is moving freely, but the forward reverse lever is stuck in high forward. I am hoping if I leave it for a while it might free up. Yes the hydraulic oil is up to level.
 

JaredV

Senior Member
Joined
Jan 22, 2022
Messages
705
Location
SW WA
I'm gonna guess this has friction discs in the shafts to hold the controls in position and they're worn out.
 

mhobson

Well-Known Member
Joined
Sep 29, 2016
Messages
160
Location
Vienne, France
I got the gears working, I removed the plate behind the left footwell which revealed the two levers entering the gearbox, each connecting to the forward/reverse lever. Even tapping the front lever lightly with a hammer and drive, it did not move, but when I tapped the other lever which is behind the first, I felt a little give and with a few more taps it returned to the neutral position. PHEW!! I thought I was going to need a serious gearbox repair, the cost of which would have put the tractor in the scrap.
 
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