Save This Page ] [ Follow Ups ] [ Post Followup ] [ International Farmall Tractor Discussion Forum ] [ FAQ ] Save This Page ] [ Follow Ups ] [ Post Followup ] [ International Farmall Tractor Discussion Forum ] [ FAQ ]
| | SSB Farm Tractor Parts, Manuals & Antique Tractors | | Tractor Parts | | Tractor Manuals | | Tractor Implements | | Tractor Seats | |
| | Rear View Backup Camera | | Pedal Toy Tractors | | Tractor Loaders | | PTO Generators | | Fuel Saver Efficiency Additive | |
| | Rustic Home Decorating & Decor | | Tractor Books | | Trailer Parts | | Antique Farm Tractors Blog | | Antique Tractors History | |
In Reply to: 460 Utility Hydraulic System Noise posted by Ed Orschek on Monday, April 14, 2008:
Is it quieter when hyd cyl is moving and does engine sound like it labors less. If so, I believe your system is staying on demand and yes the relief valve would be opening then. You need to determnine if system returns to bypass pressure when you are not calling for any hydraulics. This hyd system uses a regulator valve in the same block as the relief valve is, and through a screened orfice plug returns system to a pressure less than 100 psi when valves are in neutral. If orfice is plugged or too small, or if one of the roll pins on aux valves where you turn valves from single to double actions is bent you will have same problem. Also , if system is on demand it will overheat and very hard on pump. Other than that, suction leaks at pump or main suction tube or plugged filter will cause noise all the time.