Air Continuously Leaks from the Exhaust Port of a Tractor

question 26

Multiple Choice

Air continuously leaks from the exhaust port of a tractor relay valve when the park brakes are released.What should be done?

• A) repair the exhaust valve
• B) replace the relay valve
• C) check the related spring brake chambers for hold-off pressure back-flow
• D) replace the park/emergency quick-release valve

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