What is the Correct Brake Fluid to Use in Hydrastar Electric Over Hydraulic Brake Actuators

Question

Question:

recommended fluid for elec over hydrolic brakes

asked by: Rob

0

Expert Reply:

The brake actuator that you have or purchase will state specifically what fluid you will need to use either on the cap or in the owners manual if not both. For the Hydrastar Electric Over Hydraulic Brake Actuator, # HS381-8067, you would be using DOT 3 or DOT 4 brake fluid. Of course you would not want to mix the 2. If you start with DOT 3 but then later go to bleed the brakes and all you have is DOT 4 then you would need to flush the system first.

expert reply by: Michael H

0

Answer 1

In order to apply the brakes on your boat trailer while backing up, we have a kit that includes the electric over hydraulic actuator, breakaway kit and 7-way wiring, HydraStar #HS381-9066. I've included a link to a video review of this…

view full answer...

Answer 2

A trailer that is over 80 inches wide is required by DOT regulations to have rear clearance lights. An over 80 inch taillight kit, like part #TL16RK, will have the side clearance light built into it. An under 80 inch taillight does not have the…

view full answer...

Answer 3

When you bleed the brakes on your trailer after installing the Kodiak Calipers #KDBC225DAC, you will want to start with the brake that is furthest away from the actuator. Of the two bleeder valves, you will want to use the bleeder valve that is on…

view full answer...

Answer 4

Below is the general process for bleeding an electric over hydraulic brake actuator like #K71-650. Fill reservoir with NEW brake fluid. Never re-use brake fluid that has been salvaged or removed from another system. Remove the key from the breakaway…

view full answer...

Answer 5

Brake actuators designed for drum brakes typically produce around 1,000 psi pressure at most, while disc brake actuators will produce closer to the 1,600-psi pressure that you mentioned in your question. I do not recommend using a disc brake actuator…

view full answer...

Answer 6

With the Hydrastar Actuators like the #HBA16 the correct brake fluid is DOT 3 or DOT 4. Do not mix the two though.

view full answer...

Answer 7

I wish there was a pressure reducer, but you'll have to swap out your disc brake Dexter Electric Over Hydraulic actuator for the drum brake version #K71-650 and you'll be set.

view full answer...

Answer 8

The exact replacement hub assemblies you need for your BD2-545-17 are the etrailer Trailer Hub and Drum Assembly - 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 #AKHD-545-35-K that you referenced.

view full answer...

Answer 9

I reached out to the manufacturer who told me the HydraStar Electric Over Hydraulic Actuator for Disc Brakes #HBA16 has a fluid capacity of 10 oz. They told me that was going to be more than ample capacity to allow for brake pad wear once the brakes…

view full answer...

Answer 10

It is unlikely that worn bushing would cause poor tracking or sway unless something else was also worn. Look for any egg-shaped holes in the hangers, spring, equalizers and any other suspension component. This would be an indication of excessive wear…

view full answer...

Answer 11

I never recommend using grease with Nylon Bushings #TRBU11566. The grease can trap dirt which will cause the nylon to become damaged easier. And the chemicals in different greases can cause the nylon bushings to break down. If you want to use Grease…

view full answer...

Answer 12

It is possible for the actuator inside the Hydrastar Electric Over Hydraulic Actuator for Disc Brakes #HBA16 to go bad. The brake fluid should be checked with a tester to determine if moisture is mixing with the brake fluid. As moisture gets into the…

view full answer...