Overhead door 1056 Instruction Manual page 9

18.
Door Travel Adjustments
Adjust up and down travel limits to stop door in a fully opened and a fully closed position. See Figure 13.
Travel limit adjustments are made by turning the slotted hex screws marked "Travel Control" on the outside of the opener cover.
One screw controls door travel in the "Down" direction and the other screw controls door travel in the "Up" direction. See Figure
13.
Each full turn of an adjusting screw will change the carriage travel about 5/8''. Turning a screw in the direction marked "More"
will cause the door to move further in the direction controlled by that screw.
FIGURE13
MORE
TRAVEL CONTROL
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D
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CAUTION
The force needed to turn the adjusting
screw within its adjusting range is mini-
mal. Stops are provided at each setting
range -- DO NOT use excessive force.
I
NOTE
I
In order for the safety reverse system to function properly, the down travel
limit must be adjusted so that the door is closed
t.iQb.tly,
against the floor.
19.
Adjustment and Testing of the
Reversing System
The proper adjustment and testing of the Reversing System is
important for the safety of everyone who uses your door and
opener. Failure to properly adjust and test may result in serious
personal injury from a closing garage door. The System consists
of an electronic device that senses motor slowdown due to
increased load.
WARNING
The Reversing System is a safety feature that reverses the
door's travel and returns it to the fully open position if the door
encounters an obstruction or resistance while closing.
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F- F• SC
The force level is indicated by the small green light located next
to the less force button as shown . One flash followed by a
pause indicates that it is set for the least force that the door will
exert on an obstruction. Two to seven flashes indicate six more
increased force levels. The final maximum force level displays
a continuous light. The force level indicator displays the force
level at all times.
20.
Operate the door and set the level to the lowest force that
guarantees proper door operation. Each push of the "F +'"more
or "F-" less force buttons will set the level accordingly. Do not
increase force to compensate for a binding or sticking door. If
the force level indicator is on continuously read warning below.
WARN1NG
If satisfactory operation of the door/opener cannot be achieved
by following the instructions above, disconnect the opener from
the door by pulling the emergency release rope, then check
operation of the door alone. If door balance, rollers, and hinges
operate smoothly, without striking or binding in the jambs,
reconnect the opener and repeat the sensitivity adjustment
procedure. If door/opener operation is still unsatisfactory, con-
tact an Overhead Door Distributor.
As a final check, place a 1-1 /2" thick board on the floor in the
center of the door. When the door strikes this board it should
reverse within 2 seconds and fully open. If it does not, go to
step 20.
For your safety, it is recommended that the reversing
mechanism be adjusted to perform properly. Check it every six
months or call a professional door service person to check it for
you. If, for any reason, the opener is not functioning properly,
immediately disconnect the opener from the door (Emergency
Release Operation) and do not reconnect until the problem is
corrected.
If opener fails to reverse on the 1-1 /2" inch obstruction (as outlined in Step 1 9) with force adjustment set at maximum, then the
following steps should be performed.
A. Re-adjust the down travel limit so that the door is being driven more tightly against the floor.
B. Increase the length of the door arm assembly by moving the yokes to a lower set of holes on the door arm. This may require
that the down travel limit be re-adjusted to prevent door reversing at the floor.
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