How To Activate Manual Lockout Or Electric Lockout On DA86 Demco When Reversing Trailer In Gravel?
Updated 08/15/2025 | Published 07/21/2025
Question:
How do I activate the manual lockout? I want to be able to reverse in my gravel driveway alongside my shop. It keeps pushing the tires when I have my equipment on the trailer.
asked by: Janet
Expert Reply:
Janet, it’s simple. There’s a small tab on the Demco 8600lb Drum Brake actuator # DM78CV that you swing into place and pin (this prevents the inner slide from pushing in during reverse). Its a great backup even if your solenoid fails or your tow vehicle isn’t wired for reverse power.
If you actually want to wire it up electronically, which is what I recommend, I can help you out with that too. You just run a solenoid wire to the reverse wire on the back of your tow vehicle (or the trailer if it has a reverse wire), and then one wire to the trailer ground.
What equipment do you typically use/park at your shop? Any skidsteers?
Product Page this Question was Asked From
Demco DA86 Brake Actuator for Disc Brakes w/ Lockout, Solenoid, and Cover - 2" Ball - 8,600 lbs
- Brake Actuator
- Surge Brake Actuator
- Boat Trailer
- Travel Trailer
- Utility Trailer
- Bolt-On
- 8600 lbs GTW
- 2 Inch Ball Coupler
- 3 Inch Channel Tongue
- Disc Brakes
- Manual Lockout
- Demco
more information >
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Andrew N.
8/15/2025
Hey Janet, did the manual lockout on your Demco brake actuator work for reversing in your gravel driveway? I'm curious because it could help others with similar setups.