Tie Down 66 Actuator - Manual (Page 8)

090902,366
Instructions for Bleeding Tie Downs
Model 66 & 80 Actuators
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.
1
2
3
4 5
6 7
Locked Unlocked
To release the emergency brake bracket, (pictures 6
& 7) insert a brake adjustment tool (looks like a
bent screwdriver) 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.
Optional: two screw drivers using one to pull down
and one to place under the other for leverage.