IH CUB LoBoy Series - 154, 184, 185 Forum -- Questions and answers to all of your LoBoy related issues.
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Problem #1: The 3pt hitch seems to work correctly but the center rock shaft won't let down when using the mower? If i bleed off the oil at the selector valvebody the cylindar retracts? Could it be a blocked hose? Does the rock shaft go down under pressure or is it a gravity type/pressure release?
problem #2: i was working on the carb linkage with the governer disconnected. At one point it reved up pretty high then just shut off. Now it does not want to restart?
From reading other posts it looks like the problem may just be air in system and not enough weight to collapse the piston. The mower is not installed.
I'll try again after I install the mower but first I have to get it started?
The center lift cylinder does not have down pressure, and only will go down by gravity. So, without the mower deck or snow blade on it, it may not retract. I'll bet that it works fine with some weight on it.
1951 Farmall Cub, Cub Cadets 102, 104, 1811, 1864, Simplicity Legacy XL 4x4 Diesel with FEL, 60" mower, 50" Tiller
I tried with a 5' pipe for leverage and it still did not move even an eighth inch. Even prying against the frame and rocker shaft and nothing happened. i thought I was going to tip the tractor over. Something is blocking the fluid from leaving the cylinder?
If you have to bleed pressure off at the selector valve then you may want to check that valve. It may be stuck/clogged.
Properly working, the cylinder will not bleed down with the engine off. For the cylinder to relax, the following must be true.
The engine must be running
The hydraulic lift handle must be in a down (or float) position
The hydraulic selector valve (if equipped) must be in the rockshaft position
Down pressure must be applied to the rockshaft (200 lbs of gravity works)
Note: If no hydraulic selector valve is present, then the hydraulic lift will first actuate the cylinder with the lesser load when lifting.
May also want to check for water in the system. Since this is the lowest point in the system it is common for water to gather at the rockshaft cylinder.
184 w/ Creeper & 3-Point
IH Model 15 Tiller
Thanks outdoors4evr. That was the info I needed. Everything seems to work as designed now. Here are a couple of picts from the completed project.
Nice setup.... thought we lost you when you sold the Cub.
1971 Cub (Rufus) 1950 Cub (Cathy) 1965 Lo Boy Fast Hitch (Nameless III) 1970 Cub 1000 Loader & Fast Hitch (Lee)
8 posts • Page 1 of 1
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