Replacement Master Cylinder For a Demco DA16 Surge Brake Actuator

Question

Question:

Does this actuator support disk brakes on three axles? Your Video says it has a nylon master cylinder but thought the DA16 had the Aluminum large bore master cylinder. I have this same Actuator which is frozen and looking for an exact replacement

asked by: Mike R

0

Expert Reply:

Yes, the Demco Hydraulic Brake Actuator # DM8164311 can support up to 3 axles with disc brakes. The current version does use a nylon Master Cylinder # DM5918. This master cylinder will replace your aluminum large bore master cylinder on your older DA16 actuator.

expert reply by: Bud M

0

Answer 1

The reverse lockout solenoids stop brake fluid from being released from the master cylinder and sent to the wheel cylinder. It does this by receiving an electric signal, usually from the reverse light circuit. That said, if you were to wire this into…

view full answer...

Answer 2

Yes I can; as you can see the mount portion measures 7 inches and the portion behind it measures 9-1/4 inches for the Demco disc brake actuator you asked about, which is the following part number: - Demco Hydraulic Brake Actuator w/ Drop and Electric…

view full answer...

Answer 3

Since you have a 4-Way flat trailer connector, you will need to add a 5-Way flat adapter, #20036, to the vehicle and a 5-Way flat, #HM47910, on the trailer if you want the electric reverse lockout to work. On the vehicle side, the extra wire will…

view full answer...

Answer 4

If you're looking for a new coupler to replace a Tie Down Engineering Model 20, I recommend the Demco Hydraulic Brake Actuator part #DM8204311 which like the Model 20 has a 20,000 lb weight capacity designed for a 2-5/16" hitch ball. It uses…

view full answer...

Answer 5

The correct replacement master cylinder kit we have for your Demco setup is the part #DM5918 which comes with the lock out replacement.

view full answer...

Answer 6

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

view full answer...

Answer 7

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are marked…

view full answer...

Answer 8

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

view full answer...

Answer 9

A BT8 spindle would have a diameter of .99 of an inch where the bearings would both install and would have a diameter of 1.24 where the great seal would ride. That would require a hub part #AKIHUB-440-2-1K for an idler hub. A BTR spindle would have…

view full answer...

Answer 10

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

view full answer...

Answer 11

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

view full answer...

Answer 12

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

view full answer...