Is There Manual Lockout Available for Demco Surge Actuator part # DM72VR

Updated 05/13/2025 | Published 06/20/2023

Products Featured in This Question

Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 7,000 lbs

(390)

$166.19

Reverse Lockout Solenoid Kit for Demco DA66B and DA70 Hydraulic Brake Actuators - Non-Bypass

(36)

$67.65

Question:

I would like to purchase a DM72vr coupler but need a manual lockout is this possible?

asked by: Kevinkgoodwin

Expert Reply:

Demco does not offer a manual lockout for the coupler part # DM72VR but they do offer an electric option with the part # DM5836. They also recommend installing free-backing brake assemblies on the axles instead too which I attached a link to a page that has all of them.

expert reply by: Jameson C

George

5/13/2025

Is the free braking brake assembly necessary? Or can I just use the electric reverse brake lockout? I'm replacing an old surge brake assembly with drums

Jameson C.

5/13/2025

@George If you have an electric or manual lock out then you do not need to use free-backing plates. There's no reason you couldn't use them but they are redundant and not needed.