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Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 5120
Experience:  17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.
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Terex telehandler park brake no longer works, what do i look

Customer Question

Terex telehandler park brake no longer works, what do i look for, i also had a leak on the park brake sensor,
Submitted: 1 year ago.
Category: Construction and Road Equipment
Expert:  Dan replied 1 year ago.

Hi my name is***** will be glad to try to help. What is the complete model and serial number of your machine?

Customer: replied 1 year ago.
Terex telehandler SS644C serial 992373
Customer: replied 1 year ago.
I removed the sensor so i can trouble shoot, so i don't have oil leaking while working on it,
Customer: replied 1 year ago.
I am suspicious that the customer forgot to take park brake of and ran it and now worn brakes, does this sound logical?
Customer: replied 1 year ago.
could you please send reply to***@******.*** ? i will be at that computer now.
Expert:  Dan replied 1 year ago.

Thanks for the update. Click on this link for the parts manual that shows the park brake circuit and components. I will gather some more information in between jobs here and post as well.

Manual

Expert:  Dan replied 1 year ago.

See PDF page 171 for the parking brake circuit breakdown.

Expert:  Dan replied 1 year ago.

It is spring washer applied and pressure released so if it will not hold then yes the spring washers and friction discs are likely worn and damaged.

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