20
Without a properly installed safety reversal system, persons
(particularly small children) could be SERIOUSLY INJURED or
KILLED by a closing garage door.
• Incorrect adjustment of garage door travel limits will interfere
with proper operation of safety reversal system.
• If one control (force or travel limits) is adjusted, the other
control may also need adjustment.
• After ANY adjustments are made, the safety reversal system
must be tested. Door must reverse on contact with 1-1/2"
(3.8 cm) high object (or 2 x 4 laid flat) on floor.
To prevent damage to vehicles, be sure fully open door
provides adequate clearance.
WARNING
CAUTION
WARNING
WARNING
WARNING
CAUTION
WARNING
WARNING
ADJUST THE UP AND DOWN TRAVEL LIMITS
Limit adj
u
stment settings reg
u
late the points at
w
hich the
door
w
ill stop
w
hen mo
v
ing
u
p or do
w
n.
To operate the opener, press the door control p
u
sh
b
ar.
R
u
n the opener thro
u
gh a complete tra
v
el cycle.
• Does the door open and close completely?
• Does the door stay closed and not re
v
erse
u
nintentionally
w
hen f
u
lly closed?
If yo
u
r door passes
b
oth of these tests, no limit
adj
u
stments are necessary
u
nless the re
v
ersing test fails
(see Adj
u
stment Step 3).
Adj
u
stment proced
u
res are o
u
tlined
b
elo
w
. Read the
proced
u
res caref
u
lly
b
efore proceeding to Adj
u
stment Step
2. Use a scre
w
dri
v
er to make limit adj
u
stments. R
u
n the
opener thro
u
gh a complete tra
v
el cycle after each
adj
u
stment.
NOTE:
Repeated operation of the opener during
adjustment procedures may cause the motor to overheat
and shut off. Simply wait 15 minutes and try again.
NOTE:
If anything interferes with the door’s upward travel,
it will stop. If anything interferes with the door’s downward
travel (including binding or unbalanced doors), it will
reverse.
HOW AND WHEN TO ADJUST THE LIMITS
•
If the door does not open completely but opens at
least 5 feet (1.5 m)
:
Increase
u
p tra
v
el. T
u
rn the UP limit adj
u
stment scre
w
clock
w
ise. One t
u
rn eq
u
als 2" (5 cm) of tra
v
el.
NOTE:
To prevent the trolley from hitting the cover
protection bolt, keep a minimum distance of 2-4"
(5-10 cm) between the trolley and the bolt.
•
If door does not open at least 5 feet (1.5 m):
Adj
u
st the UP (open) force as explained in Adj
u
stment
Step 2.
•
If the door does not close completely:
Increase do
w
n tra
v
el. T
u
rn the DOW
N
limit adj
u
stment
scre
w
co
u
nterclock
w
ise. One t
u
rn eq
u
als 2" (5 cm) of
tra
v
el.
ADJUSTMENT LABEL
Cover Protection Bolt
2-4"
(5 cm-
10 cm)
Left Side Panel
Limit Adjustment Screws
T
u
rn either limit adj
u
stment scre
w
the direction
of the arro
w
to increase trolley tra
v
el, t
u
rn in
the opposite direction to decrease tra
v
el
ADJUSTMENT STEP 1
•
If the opener reverses in fully closed position:
Decrease do
w
n tra
v
el. T
u
rn the DOW
N
limit adj
u
stment
scre
w
clock
w
ise. One t
u
rn eq
u
als 2" (5 cm) of tra
v
el.
•
If the door reverses when closin
g
and there is no
visible interference to travel cycle:
If the opener lights are flashing, the Safety Re
v
ersing
Sensors are either not installed, misaligned, or
o
b
str
u
cted.
ADJUSTMENT
Summary of Contents for 248730
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