SSB Farm Tractor Parts, Manuals & Antique TractorsAftermarket Farm & Old Antique Tractor PartsTractor Service, Repair & Owners Operators Manual ShopTractor ImplementsTractor SeatsTractor Front End LoadersPedal Toy Tractors Farm Tractors For Sale ClassifiedsAntique Tractors For Sale ClassifiedsTractors Forum - Help & AdviceTractor, Gardening, Mowers & Outdoor Equipment BooksTractor ProductsContact Us
How much is your farm tractor worth? Find resale prices for tractors built from 1939 through today, with complete specifications and serial numbers. Save 15% on our Official Tractor Blue Book sale!

Search This Message Board:

NH 8970 locking brake

jm Hey there you wise people, help me out!
My NH 8970 all of a sudden decides to brake on its own on the right rear wheel. When first starting it may go for 5-10 minutes, then the pedal goes rock hard and locks the wheel.
To get me out of trouble and operational, I have attached a hose from the brake bleeder nipple to the hyd oil filler so that the hyd oil is returned and the brake doesn't lock.
What is causing this?
I appreciate any input.

sixbales I have no knowledge of your braking system, but in thinking about your problem I think you must have a sticking check valve somewhere in the system.

Probably in the master cylinder that the brake pedal actuates. Making it a one-way pump???

jm Thanks Sixbales, appreciate your help. Will follow this up and respond on outcome.

Post a Followup

Enter Code Shown Above As it Appears:

Upload Picture (Optional - Choose File):



Sign Up For Our Monthly Special Sales!