Craftsman 139.53978SRT User Manual
Owner's Manual
1/2 HP
GARAGE DOOR OPENER
For Residential Use Only
Model No:
139.53978SRT
CAUTION:
Read and follow all safety rules
and operating instructions
before first use of this product.
Fasten the manual near the
garage door after installation.
Complies with UL 325 ,/"_'_
regulations effective _ U| |
January 1, 1993
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A
visit our Craftsman website: www.sears.com/craftsman
[] Safety Precautions
[] Assembly
[] Installation
[] Adjustment
[] Maintenance
[] Operation
[] Troubleshooting
[] Parts List
Contents Page
A review of safety alert symbols................................. 2
You'll need tools.......................................................... 3
Safety information regardinggarage door locks
and ropes .................................................................. 3
Testing your garage door for sticking,binding
and balance............................................................... 3
Illustrationof sectionaldoor installation..................... 4
Illush'ationof one-piece door installation................... 5
Carton inventory.......................................................... 6
Hardware inventory..................................................... 7
Assembly section - pages 8 - 11
Assemble the rail & installthe trolley........................ 8
Fasten the railto the opener ..................................... 9
Installthe idler pulley ................................................ 9
Installchain/cable & attach the sprocket cover......10
Tighten the chain .................................................... 11
Installation section - pages 11 - 27
Installationsafety instructions................................. 11
Determine header bracket location
Sectional door ....................................................... 12
One-piece door ..................................................... 13
Installthe header bracket ....................................... 14
Attach the railto header bracket ............................ 15
Positionthe opener ................................................. 16
Hang the opener ..................................................... 17
Installthe door control ............................................ 18
Contents Page
Installthe lightand lens ................................................. 19
Attach emergency release rope and handle................. 19
Electrical requiramemts................................................. 20
Safety reversing sensor information.............................. 21
Installthe safety reversing sensor........................... 22, 23
Fasten door bracket (sectional door) ............................ 24
Fasten door bracket (one-piece door)........................... 25
Connect door arm to trolley (sectional door)................. 26
Connect door arm to trolley (one-piece door) ...............27
Adjustment section - pages 28 - 30
Travel limitadjustments................................................. 28
Force adjustments......................................................... 29
Test the safety reversingsensor ................................... 30
Test the safety reverse system .................................... 30
Operation safety instructions........................................... 31
Care of your opener......................................................... 31
Maintenance schedule .................................................... 31
Operation of your opener ................................................ 32
Receiver and remote control programming .................... 33
Having a problem? .................................................... 34, 35
Repair parts, railassembly .............................................. 36
Repair parts, installation.................................................. 36
Repair parts, opener assembly ....................................... 37
Accessories...................................................................... 38
Index ................................................................................ 39
How to order repair parts................................................. 40
Warranty .......................................................................... 40
Start by reviewing these important safety alert symbols
Mechanical Electrical
When you see this Safety Symbol on the following pages, it will alert you to the possibility of damage
to your garage door and/or the garage door opener if you do not comply with the corresponding
instructions. Read the instructions carefully.
This garage door opener is designed and tested to offer safe service provided it is installed, operated,
maintained and tested in strict accordance with the safety instructions contained in this manual.
2
You'll Need Tools
During assembly, installation and adjustment of the opener, instructions will call for hand tools shown below.
Stepladder
_ckets _ Adjustable End Wrench
An unbalanced garage door might not reverse
when required and someone under the door
could be seriously injured or killed.
If your garage door binds, sticks or is out of
balance, call for professional garage door
service. Garage doors, door springs, cables,
pulleys, brackets and their hardware are under
extreme tension and can cause serious Injury
or death. Do not try to loosen, move or adjust
them youreelfl
Ropes left on a garage door could cause
someone to become entangled and killed.
Remove all ropes connected to the door before
installing and operating the opener.
Identify the type and height of your door and any
special conditions that exist and any additional
materials that may be required by referring to the
lists on page 4 or page 5.
To avoid damage to the garage door and
opener, disable locks before installing and
operating the opener. Use a wood screw or nail
to hold looks in the "open" (unlocked) position.
Operation at other than 120V 60 Hz will cause
opener malfunction and damage.
Before you begin, complete the following test to
make sure your door is balanced, and is not
sticking or binding:
• Liftthe door about halfway as shown. Release the
door. It should stay in place, supported entirely by
itssprings.
• Raise and lower the door to see ifthere is any
binding or sticking.
ONE-PIECE DOOR
3
Before you begin, survey your garage area to
see whether any of the conditions below apply
to your installation.
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum, door
with glass panels, etc.).
See page 24 for details,
Header Wall
Extension
Spdng
OR
Spdng
FINISHED CEILING
Support bracket &
fastening hardware
is required.
See page 17.
Access Door
O
Floor must be level
Sensor across width of door,
Based on your particular requirements, there are
several installation steps which might call for
materials and/or hardware not included in the carton.
• Step 1, page 12 - Look at the wall or ceiling above
the garage door. The header bracket mustbe
securely fastened to structural supports.
• Step 5, page 17 - Do you have a finished ceiling in
your garage? If so, a support bracket and
additional fastening hardware may be required.
• Safety reversing sensor, page 21 - Depending
upon garage construction, extension brackets (see
Accessories page 38) or wood blocks may be
needed to fasten sensors to mounting locations.
• Step 10, page 22 - Floor mounting of the safety
reversing sensor will require hardware not
provided.
• Step 11, page 24 - Do you have a steel, aluminum,
fiberglass or glass panel door? If so, horizontal
and vertical reinforcement is required.
• Look at the garage door where it meets the floor.
It must close on the floor all the way across.
Otherwise, the safety reverse system may not
work properly. See page 30, Floor or door should
be repaired.
safety
Reversing
Ser_sor
Header Closed Position
Bracket
/ Trolley
Stop Bolt Trolley
_u_r J_ Enl_'l_YRed_ ase
Header
Wall
Garage
Door -
J- _ Door
\ Arm
Door
Bracket
• The opener can be installed within4 feet to the left
or right of the door center if there is a torsion spring
or center bearing plate in the way of the header
bracket or door bracket area. If your door has
extension springs, the opener must be installed in
the center of the door. See pages 12 and 24.
• Do you have an access door in addition to the
garage doo_ If not, Model 53702 Emergency Key
Release is required. See page 38.
• If your door is more than 7 feet high, see the rail
extension kits listed on page 38.
You may find it helpful to refer back to this page as you proceed with the installation of your opener.
One-Piece Door without Track
Before you begin, survey your garage area to FINISHED CEILING
see whether any of the conditions below apply supportbracket "_
to your installation. &fastening _'_ _
Header
Wall
_ _ _Trolley Stop Bolt Cable Trolley
h_rdware is required.
See page 17.
leader
EmergenCy
Release
Rope & Handle
Safety of door must not exceed 1/4". One-Piece Door with Track
Reversing Sensor
ap between floor and bottom Sensor" -----
Reversinc
Based on your particular requirements, there are
several installation steps which might call for
materials and/or hardware not included in the carton.
• Step 1, page 13 - Look at the wall or ceiling above
the garage door. The header bracket mustbe
securely fastened to structural supports.
• Step 5, page 17 - Do you have a finished ceiling in
your garage? If so, a support bracket and
additional fastening hardware (not provided) may
be required.
• Safety reversing sensor, page 21 - Depending on
garage construction, wood blocks or extension
brackets (see Accessories page 38) may be
needed to fasten sensors to mounting locations.
• Step 10, page 22 - Floor mounting of the safety
reversing sensor will require hardware that is not
provided.
• Step 11, page 25 - Generally, a one-piece door
does not require reinforcement. If your door is
lightweight, you can refer to the information
relating to sectional doors on page 24.
• Step 11, page 25 - Depending on your door's
construction, you might need additional mounting
hardware for the door bracket.
• Do you have an access door in addition to the
garage door? If not, Model 53702 Emergency Key
Release is required. See page 38.
• The gap between the bottom of the garage
door and the floor cannot exceed 1/4%
Otherwise, the safety reverse system may not
work properly. See page 30. The floor or the door
should be repaired.
;afety
.. Safety across width of door Sensor
Reversing
Sensor
Reversing
Closed Position
/JJ/_ Trolley Stop Bolt Cable
Wall" _ _ Header
i_; B_cket
Bracket Door Arm
_BG oor Straight
arage Door _-
Chain
Rail
Emergency
Release
-- Rope &
Handle
You may find it helpful to refer back to this page
as you proceed with the installation of your
opener.
5
Carton Inventory
Your garage door opener is packaged in two cartons which contain parts illustrated below. Accessories will
depend on model purchased, if anything is missing, carefully check the packing material. Parts may be "stuck" in
the foam. Hardware for assembly and installation is shown on page 7.
Standard Control Console
Troney
Chain
Idler Pulley
Remote Control with Visor Clip (2)
Sprocket Cover
Security-I- Three-Function
Security+ Keyless Entry
Ught Lens
Rail
Center/Back
Sections
Hanging Brackets
Rail
Front (header)
Section
Safety Sensor
Bracket
Header Bracket
(2) Safety Reversing Sensors
(1 Sending Eye and 1 Receiving Eye)
2-Conductor White & White/Black Bell Wire
with
attached
6
Door Bracket
2-Conductor Bell Wire
White & White/Red
J
Curved Door
Arm Section
Uterature
SafetyandLabels ]
Straight Door
Arm Section
Separate all hardware from the packages in the rail carton and the opener carton, as
shown below, for the assembly and installation procedures.
ASSEMBLY
@ © @
Lock Nut Lock Washer Nut
1/4"-20 (2) 3/8' (1) 3/8" (1)
Master
Link(2)
Bolt 1/4"-20 x 1-5/4" (2)
Chain Spreader (2)
TroUey Threaded Shaft (1)
INSTALLATION
D,,,L,H,H,I,,,,,D© © 0
Hex Screw Spacer (2) Nut Lock Washer Ring
5/16'-18x7/8" (4) 5/16"-18 (8) 5/16" (7) Fastener (3)
O
U
Idler Bolt (1)
_] Illl II !!!rl!l I]ll II I1_ Screw ]"HlJ::]:''"'"I
5/16"-18xl-7/8" (2) 6ABx1-1/4 ° (2) 6-32x1" (2) Anchors (2)
oj om
Clevis Pin CleVis Pin Clevis Pin Insulated
5/16"x1-1/2" (1) 5/16"xl" (1) 5/16"x1-1/4" (1) Staples (10)
SAFETY REVERSING SENSOR
Carriage Bolt Insulated
1/4"-20xl/2" (2) Wing Nut (2) Staples (20)
I
Assembly Section: Pages 8 - 11
To avoid installation difficulties, do not run the garage door opener until instructed to do so.
Assembly Step I I
Assemble the Rail & Install the Trolley
The front rail has a cut out "window"at the door end
(see illustration). The hole above this window is
larger on the top of the rail than on the bottom. A
smaller hole 3-1/2" away is close to the rail edge.
The back rail has a similar hole close to the edge,
about 4-3/4" from the far end. A 3-piece rail uses
two back rails.
Preferred assembly is to position the rails right
side up, with the small holes along the same
edge.
1. Remove the straight door arm and clevis pin
packaged inside the front rail and set aside for
Installation Step 12.
2. Align the rail sections on a fiat surface exactly as
shown and slide the tapered ends intothe larger
ones. Tabs along the side will lock into place.
3. Place the powerhead 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.
4. As a temporary trolley stop, clamp a locking pliers
onto the rail, 8" from the center of the idler pulley
hole, as shown.
5. Check to be sure there are 4 black plastic wear
pads inside the inner trolley. If they became loose
during shipping, check all packing material. Snap
them back into position as shown.
6. Connect the inner and outer trolleys as shown.
7. Slide the trolley assembly along the rail from the
back end to the locked pliers.
I
Trolley __
/
End
Locking Pliers
IdJer
Hole
8" Distar_e from
Idler Pulley Hole
Window
Cut-Out
FrontRail
(TO DOOR)
Back Rails
(TO POWERHEAD)
End
Outer 1
\
Inner Trolley
- Wear Pads
8
Assembly Step 2 I
Fasten the Rail to the Opener
• Insert a 1/4"-20xl -3/4 bolt into the cover
protection bolt hole on the back end of the rail as
shown. Tighten securely with a 1/4"-20 lock nut.
• Remove the two screws from the top of the
opener.
• Place the U bracket, flat side down, on the opener
and align the bracket holes with the screw holes.
Fasten with the previously removed screws.
• Attach spreaders to the U bracket by snapping
them into place.
• Align the rail assembly with the top of the opener.
Slide the rail end onto the U-bracket, all the way
to the stops that protrude on the top and sides of
the bracket.
I
To fasten rail, use only those screws mounted
in the top of the opener. Any other screws will
cause serious damage to the opener.
Screws • Opener
Sprocket
"U"Bracket
Cover
So_ Ho_
Hardware Shown Actual Size
Bolt 1/4"-20 x 1-3/4 1/4"-20
Assembly Step 3
Install the Idler Pulley
• Lay the chain/cable beside the rail, as shown.
Grasp the end with the cable loop and pass
approximately 12" of cable through the window.
Allow it to hang until Assembly Step 5.
• Remove the tape from the idler pulley. The inside
center should be pre-greased. If dry, regrease to
ensure proper operation.
• Place the idler pulley into the window as shown.
• Insert the idler bolt from the top through the rail
and pulley. Tighten with a 3/8" lockwasher and
nut underneath the rail until the lock washer is
compressed.
Rotate the pulley to be sure it spins freely.
Insert a 1/4"-20xl-3/4 bolt into the trolley stop
hole in the front of the rail as shown. Tighten
securely with a 1/4"-20 lock nut.
Lock Nut
Chain and
Cabte
SLIDE RAILTO STOP_
ON TOP AND SIDES
OF BRACKET
rease
Inside Pulley
Idler
Pulley
into Back Slets.
then Snap Tab
Into Front Slot
Trolley
Stop Hole '
Idler Pulley
Hardware Shown Actual Size _
Idler Bolt Bolt 1/4'-20 x 1-3/4 Lock Nut 1/4"-20 Nut 3/8' LockWasher 318"
Assembly Step 4
Install the Chain/Cable
and Attach the Sprocket Cover
1. Pull the cable around the idler pulley and toward
the trolley.
2. Connect the cable loop to the retaining slot on
the trolley, as shown:
• From below, push pins of master link bar up
through cable loop and trolley slot.
• Push master link cap over pins and past pin
notches.
• Slide clip-on spring over cap and onto pin
notches until both pins are securely locked in
place.
3. With the trolley against the pliers, dispense the
remainder of the cable/chain along the rail toward
the powerhead and around the sprocket. The
sprocket teeth must engage the chain.
4. Check to make sure the chain is not twisted, then
connect it to the threaded shaft with the
remaining master link.
5. Thread the inner nut and lock washer onto the
the trolley shaft.
6. Insert the trolley threaded shaft through the hole
in the trolley. Be sure the chain is not twisted.
7. Loosely thread the outer nut onto the trolley
shaft.
8. Remove the locking pliers.
9. Align the tabs on the sprocket cover with the slots
in the mounting plate. Squeeze cover and insert
tabs in slots.
Master Unk
Cable
Dispensing Carton
LeaveChainandCable
InsideD_spensing
Carton toPreventKinking.
Keep Chain and Cable
Taut When Dispensing
Master Link Master
Clip-OnSpdng .Unk Cap
Master
.-Unk Cap
Idler
Cable
I Hole
i I
q Master
i_Unk Bar
10
lotted
Trolley Pin
Threaded Notch
Shaft _ Master
Round
Hole
Sprocket _ Opener
Cover Sprocket
Front Back
Tab Slot Tab Slot
Unk Bar
Mounting
Assembly Step 5
Tighten the Chain
• Spin the inner nut and lock washer down the
threaded shaft, away from the trolley.
• To tighten the chain, turn outer nut in the direction
shown (Figure 1).
• When the chain is approximately 1/2" above the
base of the rail at its midpoint, re-tighten the inner
nut to secure the adjustment.
Sprocket noise can result if chain is too loose.
When installation is complete, you may notice some
chain droop with the door closed. This is normal. If the
chain returns to the position shown in Figure 2 when
the door is open, do notre-adjust the chain.
NOT_. During future maintenance, AL WAYS pull the
emergency release handle to disconnect trolley before
adjusting chain.
NOTE: Youmay notice loosening of chain after
Adjustment Step 4 (Test the Safety Reverse System).
Check for proper tension and readjust chain ff
necessary. Then repeat Adjustment Step 4.
I
Figure I o=_ Lo_ Tro,.y
Nut Washer Shaft
ToT_.,_nOuterNut.--_I ! /
Inner Nut
Figure 2
Chain
r
--..L..L .LLLJ_ J--L_--L L_L_J_ _
I
i I1/_ Inch
I
Base o Ra Mid tength of Rail
You have now finished assembling your garage door opener. Please read the following
warnings before proceeding to the installation section:
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of severe injury or death to persons:
1. READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS.
2. Install only on a properly balanced and lubricated garage door. An Improperly balanced door
may not reverse and could result in severe injury or death. Repairs to cables, spring assemblies
and other hardware must be made by a professional service person before installing opener.
3. Disable all locks and remove all ropes connected to the garage door before installing the opener.
Ropes connected to a garage door can cause entanglement and death.
4. If possible, install door opener 7 feet or more above floor with the emergency release handle
mounted 6 feet above the floor.
5. Do not connect the opener to power source until instructed to do so.
6. Locate the Door Control within sight of the door at a minimum height of 5 feet where small
children cannot reach and away from all moving parts of the door.
7. Install the User Safety Instruction Label on the wall adjacent to the door control and the
Maintenance Instruction Label in a prominent location on the inside of the garage door.
8. Upon completion of the installation, the door must reverse when it comes in contact with a
one-inch high object or a 2x4 laid flat on the floor.
9. Do not wear watches, rings or loose clothing while installing or servicing an opener. Jewelry or
loose clothing can be caught in the mechanism of the garage door or the opener,
11
Installation Section: Pages 12 - 27
Installation Step I
Determine Header Bracket Location
Installation procedures vary according to
garage door types. Follow the instructions
which apply to your door.
Vedical
__ Header __
Wall
Guideline
.Vertical
I
J
__ Finished __
Ceiling
2x4 Structural
Supports
If the header bracket Is not rigidly fastened to
a structural support on the header wall or
ceiling, the safety reverse system may not
work properly (see page 30). The door might
not reverse when required, and could cause
serious injury or death.
The garage door springs, cables, pulleys,
brackets and their hardware are under extreme
tension. Do not attempt to loosen, move or
adjust them yourself. Serious personal injury
or death could result. Call for professional
garage door service.
• Close the door and mark the inside
vertical centerline of the garage door
• Extend the line onto the header wall
above the door.
Remember, you can fasten the
header bracket within 2 feet of the
left or right of the door center onlyif
a torsion spring or center bearing
plate is in the way; or you can attach
it to the ceiling (refer to page 14)
when clearance is minimal. (It may
be mounted on the wall upside down
if necessary, to gain approximately
1/2".)
/f you need to install the header bracket
on a 2x4 (on wall or ceiling), use lag
screws (notprovided) to securely fasten
the 2x4 to structural supports as shown
here and on page 13.
• Open your door to the highest
point of travel as shown. Draw
an intersecting horizontal line
on the header wall 2" above
the high point This height will
provide travel clearance for the
top edge of the door.
Door clearance brackets are
available for sectional doors
when headroom clearance is
less than 2" See accessory
page 38.
Proceed to Step 2, page 14.
_2 wall Track
I '
_'*_High t Point
DOOr
Sectional door
with curved track
Ceiling
Header
of Travel
12
Header
Highest Point
of Travel
One-piece door
with horizontal track
Track
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