Overhead door 55A Assembly instructions

MODEL 55A
GARAGE DOOR OPENER SYSTEM
'. l;·I
'/
. I'
',,
105376-1
4-15-83
ASSEMBLY
1
INSTALLATION
AND
OPERATING INSTRUCTIONS
--------
-· __.------------·
Printed in U.S.A.
Page 1

TABLE OF CONTENTS
HOW TO USE THIS BOOK ______ _ 2
TOOLS NEEDED ___________ 2
GENERAL NOTES ___________ 3
ASSEMBLY INSTRUCTIONS 4-7
HOW TO USE THIS BOOK
1. Use tools indicated by silhouettes
at top of instruction.
2. Perform the instruction according
to the words and iI lustration.
3. Put a check in box after completion
of instruction.
4. Proceed to next step.
ASSEMBLY DRAWING ________ _
INSTALLATION INSTRUCTIONS ____ _
WIRING ______________ _
7
8-15
16-18
Adjust drive chain-cable.
OPERATION AND ADJUSTMENT ____ _
TROUBLE SHOOTING GUIDE _____ _
PARTS AND SERVICE---------
PARTS LIST ____________ _
ILLUSTRATED PARTS BREAKDOWN __ _
WIRING DIAGRAM-----------
WIRING SCHEMATIC----------
TOOLS NEEDED
19-20
21
23
22
22
23
23
EXAMPLE
You will need the tools shown below to assemble and install this operator.
ELECTRIC DRILL
5/32 BIT
1 /4 BIT
,.., : 0
CARPENTER
LEVEL
A
STEP LADDER
6-0
(.., __ _..[\HACK SAW
.,., ••• .,.ADJUSTABLE
<lllf END WRENCH
Page 2
NEEDLE NOSE
PLIERS
" D
-=C
END WRENCH
•
TAPE MEASURE
7/16 & 9/16
•
STRAIGHT EDGE
SLOTTED
SCREWDRIVER
•
PENCIL
WIRE
•
POCKET
KNIFE
CUTTERS
OR
WIRE STRIPPERS
•
NUTDRIVER
1/4
1

GENERAL NOTES
The following procedures must be performed before operator can be installed. Failure to
complete the
fol lowing procedures can cause operator failure and/or hazardous conditions
which could cause personal injury.
l. Check working condition of door. Door should operate freely without sticking or binding.
Lubricate door rollers and hinges with
SAE 30 wt. o.il. Replace damaged or broken
rollers and hinges. Tighten all bolts and screws.
2. Check for broken counterbalance springs and worn or broken lift cables. Replace any
defective parts.
CAUTION
Repairs and adjustments to cables and springs can be hazardous
and should be performed by qualified door service
people.
3. Counterbalance should be set so that door does not have to be held up or down.
4. If door is equipped with a locking device, make it inoperative by permanently securing
the locking bar in an unlocked position.
CAUTION
Remove any lift or pull rope if door is so equipped.
If adding
11
Door Minder" accessory kit; see
instructions supplied with kit for installation
WARNING
TO REDUCE THE RISK OF INJURY TO PERSONS -
USE THIS OPERATOR ONLY WITH A SECTIONAL DOOR.
CAUTION
Do not use lighted-type pushbutton,
WARNING
DO NOT CONNECT ELECTRICAL POWER TO
UNIT UNTIL INSTRUCTED TO DO SO.
Page 3

ASSEMBLY
10
Lay powerhead and boom on workbench or
floor. Assemble boom (3 sections).
30
Insta 11 boom into boom bracket •
Page 4
20
Position carriage over tapered end of boom.
BOOM
CARRIAGE
40
-
TO
POWER HEAD
Install header pulley assembly on end of boom.
HEADER
PULLEY
ASSEMBLY

ASSEMBLY
50 or
····-··· ~
Remove gear guard and sprocket cover. Check
to see that chain is correctly routed around
sprocket
and drive gear,
COVER
SCREWS
HEX. HD.SLOT
6-32 x 1/4
y
70~
Install retainer clips on connecting links.
A B C
@§)• 1n)• @=§)
CONNECTING LINK
CHAIN
CABLE
ASSEMBLY
60
Insert carriage engagement cylinder into
carriage. Wrap cab le end of drive chain-
cable around header pulley and back to
carriage. Connect chain and cable to car-
riage engagement cylinder using connect-
ing links.
CONNECTING LINK
CHAIN
CARRIAGE
8 D ~4'-m•
Adjust drive chain-cable.
CHAIN CABLE
ASSEMBLY
1-
BOOM
Reinstall gear guard and sprocket cover.
9/ 16 WRENCH
ADJUSTING
TO INCREASE TENSION
IMPORTANT
HEADER PULLEY
ASSEMBLY
BOOM
With carriage near header end of boom,
chain should not sag below center line of
boom more than 3
'.4-
11
•
Page 5

ASSEMBLY
90
100
or •
...... ~. 1.
• 4
Correctly installed: - Header pulley assembly. Remove front screws
from operator cover
and swing open.
ADJUSTING
ADJUSTING
NUT
SOLT HEADER PULLEY
~LY
0 fr. .
110
Page 6
Make initial adjustments to limits switches
by
plugging operator in and using transmitter to
run operator. Refer to page 20 for instructions
on how to set Iimit switches. The "Down" Iimit
switch should be set so that the carriage stops
approximately 7" from end of header pulley.
The
11
Up
11
limit switch should be set so that
the carriage stops approximately 18
11
from the
powerhead.
UP LIMIT
TRAVEL NUT
WARNING
Keep hands and objects clear of powerhead when
operator is running. Unplug operator when making
adjustments
to limit switches.
RETAINING ROD

(
ASSEMBLY
120
1
•••ti-••• 4
or
130
Re-install cover.
CHECKLIST
IMPORTANT
D
Make sure antenna is
ANTE~ ~~~ended through D
D
D
D
CIRCUIT BOARD
ASSEMBLY ORA WING
CONNECTING
LINKS
60684-1
CARRIAGE CYLINDER
SLIDE
-102350-1
-11/ir-'J.. 1=:.d,J RJJa;
f!fu ~ /O!f7ft./. 3
HEADER PULLEY ...}
ASSEMBLY
104159-1
CARRIAGE
THREE PIECE
BOOM
104036-1 *
104036-2
DASH ONE ( 1) PART NUMBER FOR 7 FT. DOORS.
* DASH TWO (2) PART NUMBER FOR 6 FT. DOORS.
DASH THREE
(3) PART NUMBER FOR 7 FT. DOORS.
**DASH FOUR (4) PART NUMBER FOR 6 FT. DOORS.
Header pulley assembly is positioned
correctly.
Drive chain is seated in drive sprocket
and limit switch
sprocket.
Drive chain is not twisted.
Cable is seated in header pulley.
Limit switches set to initial dimensions.
ONE PIECE
BOOM
1g:g~:=: **
AND 102104-1
CABLE ASSEMBLY
DRIVE CHAIN ~'V 8crt~D
/
104061-3** • SPROCKET
•
102104-1
104061-4~COVER
' SUPPORT
I
BRACKET
102106-1
Page 7

INST ALLA Tl ON
140
Measure width of door to determine center.
ATTACHMENT FOR DOOR BRACKET
FOR DOORS WITHOUT CENTER STILE
If header does not have suitable woodwork where
header bracket will be installed, then such will
have to be made.
It is suggested that a wood
2
11
x6
11
be secured to nearby existing woodwork.
If door does not have a center stile or suitable
attachment for attaching door bracket then
door must be re-inforced with wood or steel
at mounting point.
160
,., : 0
Raise door untiI top section reaches its highest
arc of travel. Mark header on center line at
point where level touches header.
DOOR
OPENING
CARPENTERS LEVEL
-- ..
HIGH ARC OF
DOOR
TRAVEL
DOOR TRACK
DOOR SECTIONS
IT IS RECOMMENDED THAT OPERATOR
BE MOUNTED A MINIMUM OF 7 FEET
ABOVE FLOOR.
Page 8
150
Mark center Iine on door and header.
----------- CEILING
·~
l OF DOOR
HEADER
DOOR
170
Mark horizontal center line of header bracket
three
(3) inches above high arc of door travel.
HIGH ARC OF
DOOR
TRAVEL
DOOR
1-5/8" minimum head room required above
high arc of door travel •
\

INSTALLATION
180 190
Mark horizontal center line of header bracket. Position header bracket on center line and
mark mounting hole locations on
center line.
HEADER
CENTERLINE OF
HEADER BRACKET
2oor
CEILING
Drill 5/32
11
diameter holes at marked locations.
CEILING
HEADER
CENTER LINE· OF
HEADER BRA
CKE.!. \\\
)._
CENTER LINE I
OF DOOR
I
I
DOOR
CEILING
HEADER
21D '>-' -0°~
Secure header bracket to header.
<X1\\\\\\\\\\\\\\\\\\\\%\\\\\\\\\o
1/4 x 1-3/4
LAG SCREW
HEADER
1/4 x 1-3/4 -«'\:.~
LAG SCREWS
HEADER
BRACKET
I
CENTER LINE --4
OF DOOR
CEILING
Page 9

INSTALLATION
220 A
Rest header end of boom on top edge of top door section and powerhead on top of step ladder.
EXTENSION SPRING DOOR
OR
Rest header end of boom on torsion spring and powerhead on top of step ladder.
TORSION SPRING DOOR
Page 10