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hydraulic control valve
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- 10+ Years
- Posts: 99
- Joined: Tue May 01, 2012 10:22 pm
- Zip Code: 14830
- Tractors Owned: 108
147
1969 154
1971 154 - Location: Corning NY
hydraulic control valve
My hydraulics leak down on both of my 154's. Anyone had any luck rebuilding them ?
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- Team Cub Mentor
- Posts: 20399
- Joined: Fri Jul 02, 2004 9:52 pm
- Zip Code: 65051
- Circle of Safety: Y
- Location: Mo. Linn
Re: hydraulic control valve
I have rebuilt hydraulic control valves. You need to remove the valve, disassemble, inspect to determine bore, spool valve and o-ring condition. Problem is probably a damaged o-ring, but one never knows until the valve is inspected.
Just checked the service manual. Tractor serial number U018709 and below has a circuit relief valve. Might be the problem.
Service manual contains instructions for repairing the control valve.
Just checked the service manual. Tractor serial number U018709 and below has a circuit relief valve. Might be the problem.
Service manual contains instructions for repairing the control valve.
I have an excuse. CRS.
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- 10+ Years
- Posts: 7388
- Joined: Sat Jul 22, 2006 5:02 pm
- Zip Code: 00000
- Location: in northern usa
Re: hydraulic control valve
Are you sure there is no water in your hydraulic system?
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.
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- 10+ Years
- Posts: 4131
- Joined: Thu Nov 09, 2006 11:26 pm
- Zip Code: 61722
Re: hydraulic control valve
The mowers on mine go down after a week or so,but I think the lift cylinder has worn piston in them! thanks; sonny
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- Team Cub Mentor
- Posts: 20399
- Joined: Fri Jul 02, 2004 9:52 pm
- Zip Code: 65051
- Circle of Safety: Y
- Location: Mo. Linn
Re: hydraulic control valve
The hydraulic system is single action. If you are not losing oil externally, then the leak down is occurring at/in the hydraulic control valve.
I have an excuse. CRS.
-
- 10+ Years
- Posts: 99
- Joined: Tue May 01, 2012 10:22 pm
- Zip Code: 14830
- Tractors Owned: 108
147
1969 154
1971 154 - Location: Corning NY
Re: hydraulic control valve
No water in the system. No external leaks. One tractor leaks down in about 5 min. the other tractor in 5 seconds.
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