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Replacement Air Cylinder Recommendation for Roadmaster Brakemaster That Won't Release


The brake works when actuated but does not release. What could be the problem?


Expert Reply:

I spoke to my contact at Roadmaster and he told me that most likely your problem is a bad air cylinder. He said you can test this by removing the air cylinder and taking it back to the quick disconnect at the rear of you RV. Depress and release the brake pedal. If the cylinder doesn't extend and retract it is bad and needs to be replaced.

The replacement air cylinder is the part # RM-9100-50.

expert reply by:
Jameson C

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