Craftsman 139.30437 Manual Del Propietário página 8

ASSEMBLY STEP 1
Assemblethe Rail and Instal/the Trolley
To avoid installation difficulties, do not runthe garage door
opener until instructedto do so.
The front rail has a cut out "window" at the door end
(see illustration). The hole above this windowis larger on the
top of the raft than on the bottom. A smaller hole 3-1/2" (8.9 cm)
away is close to the rail edge. Rotate the back rail so it has a
similar hole close to the oppositeedge, about 4-3/4" (12 cm)
from the far end.
1. Assemble the trolley by sliding the inner trolley into the outer
trolley.
2. Removethe straight door arm and hanging bracket
packagedinside the front rail and set aside for Installation
Steps 5 and 9.
NOTE:To prevent INJURY while unpacking the rail carefully
remove the straight door arm stored within the rail section.
3. Align the rail sections on a flat surface as shown and slide the
tapered ends into the larger ones. Tabs along the side will lock
into place.
4. Placethe motor unit on packing material to protect the cover,
and rest the back end of the rail on top. For convenience, put a
support under the front end of the rail.
5. As a temporary stop, insert a screwdriver into the hole
10" (25 cm) from the front end of the rail, as shown.
6. Checkto be sure there are 4 plastic wear pads inside the inner
trolley. If they became loose during shipping, check all packing
material. Snap them back into position as shown.
7. Slide the trolley assembly along the rail from the back end to
the screwdriver.
To prevent INJURYfrom pinching, keep hands and fingers
away from the joints while assembling the rail.
Inner
Trolley
Wear Pads
Outer
Trolley
[TOP)
KEEP LARGER
HOLE ON TOP
Window Cut-Out
ASSEMBLY STEP 2
Fastenthe Rail to the Motor Unit
1. Insert a 1/4"-20xl-3/4" bolt, washer and spacer into the cover
protection bolt hole on the back end of the rail as shown.
Install lower spacer and washer then tighten securely with a
1/4"-20 lock nut. Do NOT overtighten.
2. Removethe two bolts from the top of the motor unit.
3. Placethe "U" bracket, flat side down onto the motor unit and
align the bracket hole with the bolt holes. Fastenwith the
previously removed bolts.
4. Align the rail assembly with the top of the motor unit. Slide the
rail end onto the "U" bracket, aft the way to the stops that
protrude on the top and sides of the bracket.
Q
Lock Nut 1/4"-20
Bolt 1/4"-20xl-3/4"
HARDWARESHOWN
ACTUALSIZE
To avoid SERIOUSdamage to garage door opener, use ONLY
those bolts/fasteners mounted in the top of the opener.
Bolt Bolts
1/4"-20xl-3/4"
"U" Bracket
Cover
Protection
Bolt Hole
l
l
I SLIDE RAIL TO STOPS
t ON TOP AND SIDES
OF BRACKET
Washer 5/8"
Lock Nut
1/4"-20