Correct Pressure for Hydrastar EOH Actuator on 2013 Big Tex Tandem Axle Trailer With Disc Brakes

Updated 06/08/2022 | Published 06/02/2022

Question:

I believe my brake actuator pump has went out and I’m getting different resolution about the pump size I need to replace it. One told me I need 1000psi and another told me I need 1600psi. It’s electric over hydraulic. What do I need? It’s a 2013 big Tex dual tandems 11k per axle flatbed trailer.

asked by: Territha R

Expert Reply:

For a replacement you want an actuator with an output pressure of 1,600 psi like the Hydrastar Electric Over Hydraulic Actuator for Disc Brakes # HBA16. You need the higher pressure since you have disc brakes on your 2013 Big Tex trailer. 1,000 or 1,200 psi would be correct if you had drum brakes.

expert reply by: Robin H