Tie Down 75LP User Manual

Page 8

050506,b866

Instructions for Bleeding Tie Downs

Model 75LP Actuator

TIE DOWN ENGINEERING • 255 Villanova Drive SW • Atlanta, GA 30336

www.tiedown.com (404) 344-0000 Fax (404) 349-0401

Underside Shown, looking up

"Emergency Brake Set"

Underside Shown, looking up

"OK"

STOP

Tie Down's actuators feature a shock dampener that uses

brake fluid from the master cylinder. The dampener must be

primed before bleeding or using trailer. To prime the

dampener, fill the master cylinder with DOT 3 brake Fluid.

Push the coupler into the housing and slowly pull out 3

times, then refill master cylinder.

To pump master cylinder, insert a flat tip screwdriver into the

round hole near the front of the actuator cover. (picture 1)

Screwdriver tip will fit into the slot provided in the emergency

brake bracket as shown. Push the screwdriver forward and

back to pump the master cylinder. (picture 2)

IMPORTANT: Never go past 90 degrees (screwdriver

straight up) when "pumping" the master cylinder (picture

3). Moving past 90 degrees will cause the emergency

brake bracket to "set", locking into place creating constant

pressure in the brake lines. If you find that the screwdriver

will not go in place as shown when starting to pump the

master cylinder, or you move the screwdriver past 90

degrees and feel it "snap into place", you must unlock the

emergency brake bracket as shown in pictures 4 and 5.

Pictures 4 & 5 show the underside of the actuator. If the oval

slot where the emergency brake release tab comes out is

"silver" (picture 5) and the release tab is pushed forward, this

indicates that the emergency stop bracket is "set" and must

be released before bleeding brakes or using the trailer. If the

oval hole is "dark" (picture 4) and the release tab is free to

move back, the emergency brake is ready to go, including

bleeding and using the trailer.

Emergency Brake Engaged

Emergency Brake Disengaged

To release the emergency brake bracket, (pictures 6

& 7) insert a brake adjustment tool (looks like a

bent screwdriver) or flat screw driver into the slot

on the release tab (on bottom side of actuator) and

pull down until a "click" noise is heard indicating the

bracket is released.

After bleeding, make sure the emergecy stop is

disengaged (figure 4 & 7).