Martin DC2500e User manual

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Martin Door Manufacturing®Salt Lake City, Utah 84127-0437 USA www.martindoor.com Printed in the USA 20m Copyright 2003© AD-IM09-06
INSTRUCTION MANUAL
TM
DOOR OPENERS
ARTI
N
M
U
L
R
C US
F.C.C.
Certified
R
E
M
G
R
I
I
S
F
T
D
E
E
R
ISO 9001A8949
MARTIN DOOR MFG.
This instruction manual features “Low Risk” Martin Finger Shield Garage Doors
See page 5 for IMPORTANT INSTALLATION, MAINTENANCE & SAFETY INSTRUCTIONS
WARNING! The back page helps you determine if your garage door is “HIGH RISK”.*
For Installation on residential garage doors:
-All brands* - Center mount only
-Martin door models WL, RA, HT, FL SL, SP CM, RI, MO, CH - Center or side mount
-Martin Electric (combination) models WLE, HTE, CME, RAE, FLE, CHE - Center or side mount
MARTIN DC2500e/ GARAGE DOOR OPENER SYSTEMDC3700e
DC2500e Chain Drive: Doors up to 10’(3100) High. DC3700e Belt Drive: Doors up to 14’ (4300) High.

MARTIN SIDE-MOUNT OPENER INSTALLATION
- May be mounted right side or left side -
WARNING! For Martin Finger Shield Garage Door Systems only.
TORSION SPRING
OPENER DOOR BRACKET
STRAIGHT AND CURVED
POWER ARM
“L” STRUT
EMERGENCY
RELEASE
TAG
EMERGENCY
RELEASE
CORD
KNOB
TOP DOOR SECTION
LIGHT
LENS
POWER
HEAD
POWER
HEAD
CHASSIS
“C”
BRACKETS
OPTIONAL
PUNCHED ANGLE
RAIL SUPPORT BRACKET
RAIL ASSEMBLY
BELT OR CHAIN
TROLLEY
OPENER HEADER BRACKET
END STOP WITH CLEVIS
PIN AND COTTER RING TORSION TUBE
COPYRIGHT © 2003 MARTIN DOOR
2
TOP ROLLER BRACKET
OPENER DOOR BRACKET
3/8” X 1” SHORT NECK
CARRIAGE BOLT AND
3/8” LOCK NUT
3/8” X 1” SHORT NECK
CARRIAGE BOLT AND
2- 3/8” LOCK NUTS
TOP DOOR SECTION
OPENER HEADER
BRACKET
END STOP WITH CLEVIS
PIN AND COTTER RING
PHOTO
EYE
OPENER DOOR BRACKET
“L” STRUT (IF PROVIDED)
END
STILE
TOP ROLLER
BRACKET
OPENER DOOR BRACKET
3/8” LOCK NUTS
3/8”x1”
SHORT
NECK
CARRIAGE
BOLT
CURVED
POWER ARM
OPENER POWER ARM MUST BE FASTENED
OUTSIDE THE OPENER DOOR BRACKET
WALL
CONTROL
OR
PUSH
BUTTON
“L” STRUT

COPYRIGHT © 2003 MARTIN DOOR
MARTIN CENTER-MOUNT OPENER INSTALLATION
- May be mounted off-center for Martin Finger Shield Garage Door Systems only -
PACKET FOR OWNERS
DOOR AND OPENER
INSTRUCTION MANUALS
WARNING AND SAFETY LABEL
TORSION SPRING
OPENER DOOR BRACKET
STRAIGHT AND CURVED
POWER ARM
TORSION TUBE
EMERGENCY
RELEASE
TAG
EMERGENCY
RELEASE
CORD
KNOB
TOP DOOR SECTION
PHOTO
EYE
WALL
CONTROL
OR
PUSH
BUTTON
POWER
HEAD
CHASSIS
“C”
BRACKETS
OPTIONAL
PUNCHED ANGLE
RAIL SUPPORT BRACKET
RAIL ASSEMBLY
BELT OR CHAIN
TROLLEY
OPENER HEADER BRACKET
END STOP WITH CLEVIS
PIN AND COTTER RING
PHOTO
EYE
LIGHT
LENS
POWER
HEAD
“L” STRUT
3
3/8” LOCK NUTS
CURVED
POWER
ARM
3/8”x1” SHORT NECK
CARRIAGE BOLT
DRILL 1/8” (3) HOLE AND FASTEN OPENER DOOR BRACKET TO “L” STRUT AND DOOR SECTION
“L” STRUT
CURVED
POWER ARM
OPENER POWER ARM SHOULD BE FASTENED INSIDE THE OPENER DOOR BRACKET
OPENER DOOR BRACKET

THE FOLLOWING ITEMS ARE HELPFUL TO COMPLETE A SATISFACTORY MARTIN GARAGE DOOR AND OPENER INSTALLATION:
Hammer
Level (magnetic)
Hacksaw
Wire Cutters
18’ (5.5) measuring tape
Socket wrench set for 7/16“ (11), and 9/16” (14) with 3“ (76) extension
Regular and phillips screwdriver
End wrench set for 7/16“ (11), and 9/16” (14)
10/40 motor oil lubricant
Wax lubricant (paraffin, candle, etc.)
Cordless drill with 1/8“ (3), 13/64” (5), 1/4” (6) bits
plus 1/4” and 3/8” (6 and 10) masonry bits
Step ladder (not shown)
Pencil
Punched angle opener hanger: 8' X 1-1/4" X 1-1/4" (2440 X 32 X 32)
Needle nose piler and wire stripper.
NOTE: Bolts, lock nuts and lag screws for fastening the punched angle are
furnished with the door opener hardware fasteners.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
2.
3.
6.
9.
WAX LUBE
10/40
OMT O R
OIL
11.
10. 4.
1.
7.
MT
G O
GAR
RD
AS
E O
TA RI TA RI
M MN N
14.
8.
6.
5.
13.
ALL MEASUREMENTS IN
PARENTHESIS ( ) ARE
MILLIMETERS IN THIS
INSTRUCTION MANUAL.
!
IMPORTANT
INSTALLATION INSTRUCTIONS
Do not install this opener or any other opener on "HIGH RISK" garage doors that may cause severe injury, entrapment or death!
See back page for serious injuries which may occur if “HIGH RISK” areas are left uncorrected.
Martin Finger Shield Garage Doors are “Low Risk”.
Untrained or Negligent Installing, Adjusting and Servicing can be Dangerous! The
garage door springs and related parts can cause serious injury or death! IF YOU ARE
UNSURE, CALLA TRAINED MARTIN DOOR DEALER!
Garage door should be balanced and easy to open and close by hand.
Locks should be disabled and pull down ropes should be removed.
Locate wall control/push button within sight of door, at min. height of 5' (1520) so
small children cannot reach it, and away from all moving parts of door. See Step 8.
Emergency release tag should be installed above knob and adjusted to about
6' (1830) above the floor.
Risk of electrical shock is explained in Step10. Do not connect opener to source
of power until instructed to do so.
Entrapment and warning labels should be installed next to the wall control/push
button as explained in Step 14.
IMPORTANT
MAINTENANCE & SAFETY INSTRUCTIONS
Monthly, check the opener's down cycle safety reverse. The door must reverse when it
contacts a 1 1/2" (38) high object (or a 2X4 board laid flat) on the floor, in line with the door
opener. A closing door must also reverse if the photo eyes are interrupted. See Steps 12,13.
Always keep the moving door in sight and away from people and objects until it is
completely closed. NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
NEVER GO UNDER A STOPPED, PARTIALLY OPEN DOOR
Do not allow children to operate or play with the garage door opener controls. Keep all
remote controls away from children.
The emergency release should only be used when garage door is in the closed position.
Weak or broken springs may cause door to fall if released in the open position, increasing
the risk of severe injury or death. Use caution when using the release with door open.
Monthly visually check the lift cables, spring assembly, hardware, etc. for wear and stability.
If the Safety Reverse or any other part of the garage door and opener system do not work
properly, or if you do not understand, call a trained Martin Door Dealer.
TO REDUCE THE RISK OF SEVERE INJURY OR
DEATH, READ AND FOLLOW ALL INSTRUCTIONS
TO REDUCE THE RISK OF SEVERE INJURY OR
DEATH, READ AND FOLLOW ALL INSTRUCTIONS
SAVE THESE IMPORTANT INSTRUCTIONSSAVE THESE IMPORTANT INSTRUCTIONS
COPYRIGHT © 2003 MARTIN DOOR 5
15.

OPTIONAL POWER ARM ANGLE
FASTEN OPENER POWER
ARM DIRECTLY TO HOLE
AT SAME HEIGHT AS
TOP ROLLERS
STILE
BOLT
OIL
BOLT
HEAD
OPENER
POWER
ARM
POWER ARM
ANGLE
FASTEN TWO
NUTS TIGHT
AGAINST
POWER ARM
ANGLE
FULL HEIGHT
POWER ARM
ANGLE
(FASTEN POWER ARM ANGLE TO STILE WITH 5 1/4” X 1” THREAD FORMING SCREWS AS SHOWN.)
OPENER DOOR BRACKET GUIDELINES
ONLY Martin Finger Shield Garage Door Systems allow you
to choose center, off center or side mounting for a safer,
more attractive opener installation. See page 2 and 3
WARNING! Other brand doors are designed for center mounted
openers only. Off center or side mounted installations may result
in other brand doors binding, side shifting, twisting, and falling, as
the lift cables may detach from the cable drums.
A Martin Opener requires 1 1/2" (38) more clearance than the
required garage door clearance.
Opener Door Bracket Exception
Martin Doors over 18'2" (5540) wide, high wind Martin Doors
and Martin wood doors over 10’2”(3100) wide use 3 1/4”(83)
wide “U” struts that fasten over top roller brackets . The opener
door bracket fastens on top of this “U” strut, at any location
with four 1/4”(6) thread forming screws. With the door in the
closed position, f
or low clearance installations, try using
straight power arm only for fastening to the opener door
bracket.
See Figures A,B
asten straight power arm to reversed curved
power arm (curve may be cut off). The reversed curved power
arm is first fastened to opener door bracket. Fasten power
arms together at about a 45° angle for smooth opening and
closing of door. F the
CENTER MOUNT 8”(204)
LOW CLEARANCE
MARTIN OPENER DOOR BRACKET
FASTENED TO CENTER STILE AND
REVERSED “L” STRUT.
SIDE MOUNT 12”(305) CLEARANCE
ONE STRAIGHT POWER ARM AND
ONE REVERSED CURVED POWER ARM.
BOTH FASTENED TOGETHER AT A 45° ANGLE.
MARTIN OPENER DOOR BRACKET FASTENED TO
3 1/4”(83) WIDE “U” STRUT
ONE STRAIGHT POWER ARM FASTENED
AT A 45° OR MORE ANGLE
FIGURE A
FIGURE B
COPYRIGHT © 2003 MARTIN DOOR
6

OPENER HEADER
BRACKET
FIGURE 2
OPENER DOOR
BRACKET
CURVED POWER ARM
THIN VERTICAL MARK
THIN
HORIZONTAL
MARK
FIGURE 1
OPENER DOOR
BRACKET
CURVED POWER ARM
THIN VERTICAL MARK
TEMPORARY TIE
TEMPORARY TIE
5/16” X 2” LAG SCREWS
1/4” X 1” THREAD
FORMING SCREWS
1/4” X 1” THREAD
FORMING SCREWS
CENTER MOUNT
CENTER MOUNT
INSTALLATION INSTRUCTIONS FOR MARTIN GARAGE DOOR OPENER
SYSTEMS
THESE INSTRUCTIONS ARE INTENDED FOR PROFESSIONAL GARAGE DOOR OPENER
INSTALLERS. READ THROUGH THE COMPLETE INSTRUCTION MANUALAND APPLICABLE
SUPPLEMENTAL INSTRUCTIONS BEFORE BEGINNING.
STEP 1
FASTENING THE OPENER DOOR BRACKET
Study "Opener Door Bracket Guidelines” on page 2, 3, and 6.
Decide if the opener will be mounted to the center, off center or side of the garage door. Center
and off center mounted openers always require a “full width” top strut on the door. If side
mounted, Martin Doors up to 12'2" (3700) wide may or may not require a top strut.
Fasten the opener door bracket under the top roller bracket for side mounting or on the stile
and strut for center/off center mounting. Fasten with 1/4” x 1” Thread Forming Screws.
See “Exception” on page 6.
Fasten the curved power arm to the opener door bracket with 3/8" X 1" short neck carriage bolt
and two 3/8" lock nuts as shown in the “Opener Door Bracket Guidelines” on page 2 and 3.
Raise the curved opener power arm straight up and touch the torsion tube or spring. Make a
vertical mark on header, in line with the power arm. This mark will be the vertically centered
location for the opener header bracket. See Figure 1
Note: To hold the top of the curved power arm from falling down, temporarily tie it to the top of
the door bracket or strut. See Figure 1
Make a horizontal mark on the header 2" (51) above the highest movement of the door as it
opens. See figure 2.
The following are approximate measurements above the top of a closed door to the horizontal
mark on the header:
11 1/2" (292) for 12” (305) regular clearance track.
6 1/2" (165) for 8" (203) low clearance track.
5" (127) for 4 1/4" (108) low clearance track.
3 1/2" (89) for 2 ½" (64) low clearance track.
Fasten the opener header bracket to the header with two 5/16" X 2" lag screws. The vertical
and horizontal marks are the “centered location” marks.
STEP 2
FASTENING THE OPENER HEADER BRACKET
11 ½” (292)
Regular Clearance
TOP OF
CLOSED DOOR
3/8” X 1” SHORT NECK
CARRIAGE BOLT AND
2- 3/8” LOCK NUTS
HEADER
HEADER
REQUIRED
“FULL WIDTH”
“L” STRUT
REQUIRED
“FULL WIDTH”
“L” STRUT
COPYRIGHT © 2003 MARTIN DOOR 7

FIGURE 4
FIGURE 5
“C” BRACKET
STEP 3
FASTENING THE RAIL ASSEMBLY TO THE POWER HEAD
Place the rail assembly onto the power head chassis by lining up the sprocket assembly
opening with motor shaft. Make sure the shaft engages teeth inside sprocket assembly.
Press rail assembly down firmly onto shaft and power head chassis. DO NOT HAMMER!
Fasten 2 "C" brackets over rail assembly and onto chassis. Flanges on "C" brackets must
fit into the four recessed areas on chassis. The rail assembly must be at a right angle to
the power head for the "C" brackets to fit properly. See Figure 3
Insert 6 X 14 mm chassis screws through "C" bracket holes and into chassis holes, and
tighten screws by hand with a phillips screw driver. The “C” brackets must firmly hold rail
assembly to chassis. See Figures 3, 4.
Do not remove tape around the trolley and straight power arm until Step 9. The trolley
has been taped at the correct location so that the belt or chain position tab will activate the
position switch, and opener computer correctly. The activation begins when the opener
opens the door, from the closed position, for the first time. See Figure 5
Place power head on stepladder, positioning front of rail assembly on torsion tube (or on
torsion spring if side mounted) for stability. See Figure 5
Position rail assembly end-stop within the opener header bracket and insert clevis pin
through the end-stop and opener header bracket. Attach the
cotter ring to the end of the clevis pin. See Figure 6
STEP 4
FASTENING THE RAIL ASSEMBLY TO THE OPENER HEADER BRACKET
FIGURE 3
FIGURE 6 (Top View)
6 X 14 mm
CHASSIS SCREW
POWER HEAD CHASSIS
RAIL ASSEMBLY
“C” BRACKETS
SPROCKET
ASSEMBLY
OPENING
POWER HEAD
6 X 14 MM CHASSIS
SCREW
POWER HEAD CHASSIS
MOTOR
SHAFT
POSITION SWITCH
OPENER HEADER BRACKET
CLEVIS PIN
COTTER RING
OPENER HEADER BRACKET
RAIL ASSEMBLY
POWER HEAD
LADDER
CURVED POWER ARM
TOP DOOR SECTION
TOP DOOR
SECTION
RAIL ASSEMBLY
TIE
END STOP
TORSION TUBE
TORSION SPRING
“TAPE AROUND TROLLEY”
(DO NOT REMOVE UNTIL
STEP 9)
“C” BRACKET
SPROCKET
OPENING
COPYRIGHT © 2003 MARTIN DOOR
8

FIGURE 7
STEP 5
MOUNT OPENER TO CEILING
Raise the opener power head high enough to allow the door to be
fully opened. OPEN DOOR BY HAND. Set a 1 ½" (38) high
object on the top part of the door, under the rail assembly. Center
the rail assembly with the opener door bracket. See Figure 11
Twist rail support bracket onto rail assembly. See Figures 7
and 8
Slide the rail support bracket forward or backward on the rail
assembly to the best location for fastening to the ceiling. See
Figure 8
Fasten the 5” (127) punched angle and the rail support
bracket locks to the rail support bracket. See Figure 9
Fasten optional punched angle diagonally from 5” (127)
punched angle to ceiling for correct stability. See Figure 11
NOTE: If clearance is limited, the rail support bracket can be
fastened directly to the ceiling with no 5” (127)
punched angle or rail support bracket locks.
See Figure 8
Fasten one extra rail support bracket to center part of rail furnished for doors 10’(3100) to
12’(3700) high. Fasten two extra rail support brackets spaced equally apart on rails furnished
for doors 14’(4300) high. See Figure 11A
FIGURE 8
FIGURE 11
POWER HEAD
CHASSIS 1 1/2” (38) HIGH
OBJECT
CURVED POWER ARM
OPTIONAL PUNCHED ANGLE
RAIL ASSEMBLY
RAIL SUPPORT BRACKET
“C” BRACKET
POWER HEAD
5/16” X 2” LAG SCREW
“L” STRUT
OOR ITOP D
SECT ON
RAIL
SUPPORT
BRACKET
RAIL
SUPPORT
BRACKET
RAIL ASSEMBLY
FIGURE 11A
ONE EXTRA RAIL SUPPORT BRACKET
ON RAIL FURNISHED FOR DOORS
10’(3100) TO 12’(3700) HIGH.
TWO EXTRA RAIL SUPPORT BRACKETS
ON RAILS FURNISHED FOR DOORS
14’(4300) HIGH.
RAIL ASSEMBLY
OPTIONAL
PUNCHED ANGLE
POWER HEAD
RAIL SUPPORT BRACKET
RAIL
ASSEMBLY
TEMPORARY TIE
3/8” LOCK NUTS
FIGURE 9
RAIL SUPPORT
BRACKET
3/8” X 1” SHORT NECK
CARRIAGE BOLTS
5” (127)
PUNCHED
ANGLE
N I
IVISIBLE RA L
AEB
S
SMLY
IN I IBLE ILV SRA
A SEM L
SB Y
RAIL SUPPORT
BRACKET LOCK
POWER HEAD
FIGURE 10
5” (127)
PUNCHED
ANGLE
RAIL SUPPORT
BRACKET
RAIL SUPPORT
BRACKET LOCK
RAIL ASSEMBLY
TWIST
COPYRIGHT © 2003 MARTIN DOOR 9

LIGHT LENS
FIGURE 12A
STEP 6
LIGHT BULBS AND LIGHT LENSES
Twist 2 light bulbs (1 for DC2500e), maximum 60W, into light bulb sockets.
Position light lens tabs with corresponding slots in power head and chassis and snap
into place. Two screws are also furnished to fasten bottom part of DC3700e light lenses.
See Figure 12A or 12B
STEP 7
PHOTO EYES SAFETY SYSTEM
IMPORTANT! CLOSE DOOR BY HAND TO FINISH INSTALLATION!
MOUNTING PHOTO EYES DIRECTLY TO SIDE WALL:
Locate mounting position 3" (76) to 5" (127) above the floor. Mark and drill 1/16" (1.5) pilot
hole into wall. (If mounting to concrete or drywall instead of wood, use anchors provided
and drill 3/16" (5) pilot hole).
Fasten tapered-head screw into wall. Do not tighten screw. Allow screw head to protrude
(approximately 3/8" (9.5)) from wall.
Position the top slot hole on the back of the photo eye holder onto screw and push down
to lock in place. See Figure 13
Fasten tapered head screw through the curved channel slot at the bottom of the photo
eye holder after drilling correct pilot hole. Repeat process for other photo eye and photo
eye holder. See Figure 13
Align photo eyes so they face each other. In Step 12 you will be instructed to check the
alignment. Tighten wing nut on each photo eye by hand. See Figure 14
MOUNTING PHOTO EYES TO BRACKET:
Locate mounting position 3" (76) to 5" (127) above the floor for photo eye brackets.
Brackets can be mounted in any position as long as photo eye beam has a clear path from
one side of door to the other side after mounting. See page 3.
Mark and drill two 1/16" (1.5) pilot holes into wall. (If mounting to concrete or drywall
instead of wood, use anchors provided and drill two 3/16" (5) pilot holes).
Using round-head screws provided, fasten bracket to wall. Attach photo eye to bracket by
aligning tabs and center pin and snapping into place Photo eye wiring should exit
downward. Repeat process for other bracket. See Figures 15 and 16
Align photo eyes so they face each other. In Step 12 you will be instructed to check the
alignment. Tighten wing nut on each photo eye by hand. See Figure 16
ATTENTION: In 2-door installations, the "Receiver" photo eyes (as marked on each of
the photo eyes) should be mounted on the far outsides. The "Transmitter"
photo eyes should be mounted on the insides, to avoid 2 beams shining
into 1 receiver.
CHASSIS
LIGHT BULB
LIGHT BULB
SOCKET
LIGHT BULB
LIGHT LENS
POWER
HEAD
FIGURE 13 FIGURE 14
FIGURE 15
FIGURE 16
WING NUT
PHOTO EYE
HOLDERS
DOWN WARD EXIT
FOR WIRING
TAPERED HEAD
SCREW
TAPERED
HEAD SCREW
CURVED
CHANNEL
SLOT
TAPERED HEAD
SCREW
TOP
SLOT
HOLE PHOTO EYE WING
NUT
BOLT
PHOTO EYE
BRACKETS
ROUND
HEAD SCREW WING NUT
PHOTO EYE
WITH HOLDER
WIRING EXITS DOWN
WING
NUT
BOLT
LIGHT BULB
LIGHT
LENS
AAI
CH IN R L
AS LSEMBLY ON Y
POWER HEAD
ROUND
HEAD SCREW
PHOTO
EYE
WITH
HOLDER
WING
NUT BOLT
CENTER
PIN
FIGURE 12B
DC3700e
DC2500e
BELT RAIL
ASSEMBLY ONLY
COPYRIGHT © 2003 MARTIN DOOR
10
SLOT
TAB
TAB
SLOT
SLOT
TAB
SLOT
TAB
TAB
CHASSIS
SLOT
TAB
SLOT

3
4
AM RTIN
FIGURE 17
***STEP 7 CONTINUED***
See Figure 17
CONNECTING WIRES TO POWER HEAD
Route wiring through clip on bottom of photo eye holder, then run wires along wall and ceiling to power head
chassis. Use provided staples to fasten wiring to wall, joists and/or ceiling. Do not pinch wiring.
NOTE: As an alternative, the wiring can be routed along the top of the rail assembly, or along the outside of the
garage door track. Be sure the wiring is routed away from all moving parts of door and rail assembly. (For
Dc3700e with Martin Door applications, see concealed photo-eye wire attachment kit instructions).
Open the control panel cover by gently pulling on the 2 tabs, allowing the cover to hang open. To remove, pull
carefully on the cover corner near one of the hinges. Do not twist cover or hinges may break. See Figure 23
Route wires through wire guide at top of power head chassis into terminal area of control panel. Separate the dbl.
wire from each photo eye into two single wires: 1) the white wire and 2) the black striped wire. See Figure 17
Remove about 1/2" (13) of insulation from the end of each of the four single wires. Twist the white
wire ends together and twist the black striped wire ends together. Insert twisted white wire ends
firmly into terminal hole #1 by pushing directly into hole. If wires are difficult to insert, a screwdriver
may be used to depress the terminal tab while inserting the wires. To remove wiring, depress terminal
tab again and pull wiring out. Repeat procedure for the twisted black striped wire ends, except insert
them into terminal hole #2.
STEP 8
WALL CONTROL / PUSH BUTTON
The wall control/push button will allow you to control your garage door from inside the garage. It
must be mounted within sight of the garage door, clear of all moving garage door parts or any
associated parts, at least 5’ (1520) above the floor, out of children's reach. The wall control/push
button should only be used when the door area is free of people or any obstructions.
FASTENING THE WALL CONTROL:
Attach wiring to back of wall control. White wire end attaches to terminal #3 screw; black striped wire end
attaches to terminal #4 screw.
Locate where top mounting screw will go. Mark location on wall. Drill 1/16" (1.5) pilot hole into wall.
Fasten top screw into wall with screw head out from wall about 1/8” (3). Fasten wall control into top
slot hole by pushing down firmly onto screw head. For drywall, concrete, etc., drill 3/16” (5) pilot hole for
anchors. See Figure 18
Mark and drill 1/16"(1.5) pilot hole through bottom screw hole. Insert screw through bottom hole from the front,
and tighten screw. Route wiring from behind through one of the recessed cutouts. Avoid pinching the wires.
CONNECTING WIRES:
Route wiring through cutout, along wall and ceiling, to opener power head chassis. Use provided staples to secure
wiring. Do not pinch wiring.
Route wiring through wire guide of chassis to terminal area of control panel. See Figure 17
Remove about 1/2" (13) of insulation from the end of each wire. Insert white wire end firmly into terminal hole #3.
Insert black striped wire end into terminal #4. To remove wiring, depress tab and pull out wiring. Multiple wall
controls may be installed, parallel or series, if wires are properly connected to terminals 3 and 4 as explained.
STRUT
PHOTO EYE
WIRING
RAIL ASSEMBLY
WIRE
GUIDE
TERMINAL
AREA CONTROL PANEL
WIRE
GUIDE
POWER HEAD
CHASSIS
TERMINAL
HOLES
TERMINAL TABS
TERMINAL
NUMBERS
FIGURE 18
SCREW
HEAD
WALL CONTROL
SCREW
WHITE
WIRE
BLACK
STRIPED
WIRE
BOTTOM
SCREW
HOLE
POWER HEAD
FIGURE 17 - CLOSE-UP
PUSH
BUTTON
COPYRIGHT © 2003 MARTIN DOOR 11
DC2500e
DC3700e

FIGURE 19
STEP 9
FASTENING POWER ARMS
Close the garage door by hand.
Remove tape from rail assembly holding straight power
arm and allow it to hang freely. See Figure 19
Pull the emergency release cord to disconnect trolley (A
red square dot will appear next to the underside red catch).
Slide trolley to about 12" (305) from the opener header
bracket. See Figure 20
Position straight power arm and curved power arm so at
least two sets of holes line up.
Fasten arms together with 3/8" X 1" short neck carriage
bolts and 3/8" lock nuts. Remove Temporary Tie.
See Figures 19 and 20
Pull the emergency release cord to activate trolley(The red
dot next to the underside red catch will disappear). Raise
door by hand until trolley locks with belt or chain connector
inside rail assembly. Pulling down on the emergency
release cord with the attached knob connects or
disconnects the trolley to the connector on the chain or
belt. See Figure 21
Always close the door before releasing the trolley from the
connector. The emergency release tag must be installed
above the red knob and adjusted to about 6' (1830) above
the floor. See Figure 20
Do Not Use the Emergency Release Cord And Knob To
Pull Door Open Or Closed.
FIGURE 20
FIGURE 21 RAIL ASSEMBLY
EMERGENCY RELEASE CORD
PULL DOWN
RED KNOB
PULL DOWN TO ENGAGE(RED SQUARE DOT WILL DISAPPEAR)
PULL DOWN TO DISENGAGE(RED SQUARE DOT WILL APPEAR)
EMERGENCY RELEASE CORD
EMERGENCY RELEASE CORD
RED KNOB
RAIL ASSEMBLY
RAIL ASSEMBLY
REMOVE TAPE
TROLLEY
TROLLEY
STRAIGHT
POWER
ARM
CURVED
POWER
ARM
STRAIGHT AND CURVED
POWER ARM
TORSION TUBE
EMERGENCY
RELEASE
TAG
OPENER
DOOR
BRACKET
OPENER
DOOR
BRACKET
3/8” X 1” SHORT NECK CARRIAGE BOLT
3/8” LOCK NUT
TEMPORARY TIE
12” (305)
MINIMUM
COPYRIGHT © 2003 MARTIN DOOR
12
RED SQUARE DOT
“L” STRUT
RED SQUARE DOT
“L” STRUT
RED KNOB
RED SQUARE DOT

STEP 10
STEP 11
CONNECT OPENER TO POWER
CORD AND PLUG
To reduce the risk of electric shock, your opener is provided with an insulated
power cord with a 3-prong grounding plug. The power cord permits easy
connection to and disconnection from an electrical outlet. The power cord must be
plugged-in to a standard grounded outlet. If there is no outlet available at the
location, you must have a qualified electrician install an approved-grounded outlet
at the proper location.
WARNING! To help prevent electrocution or fire, etc., the installation and wiring and
outlet must be done in accordance with local electrical and building codes. DO NOT
use an extension cord. DO NOT use a 3-prong to 2-prong plug adapter. DO NOT
modify or cut off the grounding pin on the plug.
Plug the power cord into a properly grounded outlet. The#8 LED on the opener
control panel will illuminate, showing that the power is on. See Figure 23
OPTIONAL PERMANENT WIRING: (If required by your local electrical code)
WARNING! Contact a qualified electrician to run the necessary wiring to your
opener and to perform the electrical connections.
Disconnect the power at the circuit breaker.
Remove the Power Head Housing. Unsnap the power cord strain relief cover by
disengaging the tabs. Cut the power cord within 6" (152) of the terminal block.
Replace the strain relief cover by snapping tabs back into place. Knock out conduit
hole, and bring in the permanent wiring and conduit. Secure conduit to chassis.
Attach wiring using suitable wire nuts (not provided). Reinstall power head housing.
Connect power at the breaker. The #8 LED on the opener control panel will
illuminate, showing that the power is on. See Figure 22
MARTIN “SMART COMPUTER” CONTROL PANEL
Open control panel cover by gently pulling on the 2 tabs. Do not twist cover or
hinges may break. See Figure 23
The 3 Control Panel Buttons are labeled "P", "+", and "-”. The circular display
contains 4 numbered LED’s. See Figure 24
NOTE: When setting the adjustments, face the garage door while looking up at the
control panel.
The LED’s show useful information regarding the opener’s normal use as well as
Troubleshooting. See Figure 24
SUT
TR
FIGURE 22 OPTIONAL PERMANENT WIRING
FIGURE 24
MARTIN “SMART COMPUTER” CONTROL PANEL
CONDUIT
GROUND (GREEN)
HOT (BLACK)
NEUTRAL (WHITE)
TERMINAL BLOCK
CONDUIT
NUT
STRAIN RELIEF
COVER
PERMANENT
WIRING
POWER
HEAD
HOUSING
CHASSIS
CIRCULAR LED DISPLAY CONTROL PANEL BUTTONS
LIGHT SOCKET
FIGURE 23
CONTROL PANEL COVER
CONTROL PANEL
BUTTONS
LED’S
GROUNDED OUTLET
POWER CORD
COPYRIGHT © 2003 MARTIN DOOR 13
TAB
SCREW
SCREW

FIGURE 25
***STEP 11 CONTINUED***
SETTING THE ADJUSTMENTS
Before beginning, confirm that the garage door is the closed position, the trolley is
connected to the chain or belt connector, and the #4 LED is illuminated showing that the
power is on.
The adjustments made are Open Travel Limit, Close Travel Limit, the first Transmitter
Programming, and if necessary the Opening Force and Closing Force.
REFER TO THE FOLLOWING TO PROGRAM OR CHANGE THE PROGRAM OF THE
MARTIN “SMART COMPUTER”:
TO PROGRAM
Press and hold the "P" button for about 5 seconds. When all LEDs illuminate release the
button. See Figure 25
OPEN TRAVEL LIMIT
LED #1 should be blinking. Press and hold the "+" until the door is in the opened
position. Release this button. If the door is not in the desired position, press the "+" button
or the "-" button to move it slightly. Once the door is in the desired position, press and
release the "P" button. See Figure 26
CLOSE TRAVEL LIMIT
LED #2 should be blinking. Press and hold the "-” button until the door is in the closed
position. Release the button. If the door is not in desired position, press the "+" or the "-"
button to move it slightly. Once the door is in the desired position, press and release the
"P" button. See Figure 27
Attention! Do not close door tight on floor.
FIRST TRANSMITTER PROGRAMMING
LED #3 should be blinking. While LED #3 is blinking, press and hold the desired button on
the transmitter. When the LED #3 blinks rapidly, release the transmitter button. The
opener has now learned the particular code of this transmitter. Press and release the "P"
button. This stores the code in memory. See Figure 28
For additional transmitter programming see Figures 39, 39A, 39B.
END PROGRAMMING After the LED fade out in a circular pattern the LED #4 should be
illuminated. Press transmitter button to open and close the door two times. This allows
the opener smart computer to set its complete memory and "learn" the proper operating
levels. Each time the door is opened or closed the #3 LED illuminates about 1 second as
the belt or chain tab activates the reference switch on the power head chassis. This is a
visual check regarding computer memory retention. The “smart computer” retains memory
even after a power outage. See Figure 29 next page.
NOTE: If one setting needs to be changed without adjusting any of the other settings,
simply press and hold the "P" button for about 5 seconds, then press and release
"P" repeatedly until the desired setting is reached. This bypasses the unneeded
adjustments. When desired setting is complete, simply press "P" as many times as
needed to return the opener to normal operating mode with LED #4 illuminated.
BEGIN PROGRAMMING
FIGURE 27
FIGURE 26
OPEN TRAVEL LIMIT
CLOSE TRAVEL LIMIT
COPYRIGHT © 2003 MARTIN DOOR
14
FIGURE 28
TRANSMITTER PROGRAMMING
MARTIN

***STEP 11 CONTINUED***
FORCE SETTING
Force settings are automatically set to the proper minimum level by the Martin “Smart
computer”, each time the door is opened and closed. If the force needs to be changed,
press and hold the “P” button for about 20 seconds.
UP FORCE
LED #1 and #3 should be blinking. Press and release the "+" or "-" button once. The
illuminated LEDs around the display will display the current force setting. By pressing the
"+" or "-" key, the force can be increased (+) or decreased (-). The force should be set as
low as possible. Once the desired force is selected, press and release the "P" button. See
Figure 30
DOWN FORCE
LED #2 and #3 should be blinking. Press and release the "+" or "-" button once. The
illuminated LEDs around the display will display the current force setting. By pressing the
"+" or "-” key, the force can be increased (+) or decreased (-). The force should be set as
low as possible. Once the desired force is selected, press and release the "P" button. See
Figure 31
IMPORTANT MAINTENANCE & SAFETY INSTRUCTIONS
Monthly, check the opener's down cycle safety reverse. The door must reverse when it
contacts a 1 1/2" (38) high object (or a 2X4 board laid flat) on the floor, in line with the door
opener. A closing door must also reverse if the photo eyes are interrupted. See Steps 12,13.
Always keep the moving door in sight and away from people and objects until it is
completely closed. NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
NEVER go under a stopped, partially open door.
Do not allow children to operate or play with the garage door controls. Keep the remote
control away from children.
SAVE THESE IMPORTANT INSTRUCTIONSSAVE THESE IMPORTANT INSTRUCTIONS
If the Safety Reverse or any other part of the garage door and opener system do not work
properly, or if you do not understand, call a trained Martin Door Dealer.
The emergency release should only be used when garage door is in the closed position.
Weak or broken springs may cause door to fall, if released in the open position, increasing
the risk of severe injury or death. Use caution when using the release with door open.
Monthly visually check lift cables, spring assembly, hardware, etc. for wear and stability.
KEEP GARAGE DOOR PROPERLY BALANCED. See garage door owner’s manual. An
improperly balanced door increases the risk of severe injury or death. Call a trained Martin
Door Dealer to repair lift cables, spring assemblies and other hardware.
COPYRIGHT © 2003 MARTIN DOOR 15
UP FORCEUP FORCE
FIGURE 30
END PROGRAMMING
FIGURE 29
FIGURE 31
DOWN FORCE
!
TO REDUCE THE RISK OF SEVERE INJURY OR
DEATH, READ AND FOLLOW ALL INSTRUCTIONS
TO REDUCE THE RISK OF SEVERE INJURY OR
DEATH, READ AND FOLLOW ALL INSTRUCTIONS

STEP 13
STEP 12
TEST DOWN FORCE REVERSAL
Place a 1 1/2”(38) high object (or a 2X4 laid flat) on the floor, in
line with the door opener. When the closing door contacts the
object, it should stop, reverse, and automatically return to the
open position. If the door does not reverse, reset the down travel
limit so that the door travels slightly further down in the closed
direction. Then, retest the unit as described above. See Figure 32.
Open and close door twice before beginning test.
NOTE: Rail assembly may require center support to ceiling.
WARNING! If the door does not reverse, disconnect your
opener and call a trained Martin Door Dealer.
TEST DOWN CYCLE PHOTO EYES REVERSAL
Photo eyes must be clean and properly aligned. Loosen wing nuts
to rotate photo eyes vertically or horizontally for correct alignment.
See Figure 33.
The green light on the transmitter photo eye and the red light on the
receiver photo eye must illuminate or the door will not close.
See Figure 34
Start the door in the downward direction. Interrupt the invisible beam by waving a
solid object between the photo eyes. The Door Must Reverse! See Figure 35
Faulty photo eyes can be bypassed with constant pressure on a wall control/push
button or transmitter button.
NOTE: To test the Up Force, place an object to stop the door in its upward direction.
The opener should stop when the door contacts the object. The Martin
Opener also has a third reversal protection system, which automatically
opens the door in 30 seconds if Opener Reversal System fails or if the door
is unable to completely close in 30 seconds time.
STRUT
FIGURE 32
FIGURE 33
FIGURE 34
FIGURE 35
STEP 14
APPLY LABELS TO INSIDE OF GARAGE
TM
Martin Finger Shield Garage Door and Opener Systems include a maintenance and
warning label on a packet fastened to the backside of the #3 door section. Inside the
packet are the owner’s garage door and opener instruction manuals. See Figure 32
Important safety and instruction labels are included with your opener package. These
labels and the Instruction Manual must be fastened inside your garage where they can
be easily seen by all. We recommend fastening them next to the wall control. To fasten
labels, peel off the protective backing, and press onto smooth, clean surface. Tacks or
additional adhesive may be necessary. DO NOT PAINT OVER ANY LABELS.
See Figure 32
MARTIN
!!
8/2001AD-01IM-03
INSTRUCTION
MANUAL
MARTIN DC3700 GARAGE DOOR OPENER SYSTEM
TM
DOOROPENERS
ARTI
N
M
ForallResidentialGarage Doors up to 12’ (3700) High.
TF L AP
MAR IN INGER SHIE D G RAGE DOOR AND O ENER SYSTEM
SA
IN TRUCTION M NUALS AND WARNING LABEL
TE(FAC ORY PACKAG D AND MOUNTED)
GARAGE DOOR OPENER
INSTRUCTION MANUAL
ANDWARNIGABELS
N L
1 1/2”(38) HIGH OBJECT
FOR DOOR REVERSAL TEST
HORIZONTAL ROTATION
PATH MUST BE CLEAR BETWEEN PHOTO EYES
VERTICAL ROTATION
INVISIBLE BEAM
TRANSMITTER
GREEN LIGHT ON
RECEIVER
RED LIGHT ON
TRANSMITTER
GREEN LIGHT ON
SOLID
OBJECT
BETWEEN
PHOTO
EYES
RECEIVER
RED LIGHT OFF
WALL CONTROL
OR PUSH BUTTON
COPYRIGHT © 2003 MARTIN DOOR
16

FIGURE 36
STEP 15
TRANSMITTERS
THE BATTERY:
Pry transmitter apart using a small coin to expose battery. The 3 Volt #CR2032 battery is
shown. Battery life can last 4 to 5 years. See Figure 36.
TRANSMITTER MOUNTING CHOICES:
Transmitter can be carried alone, attached to a key chain, attached to the visor clip or
attached using the optional mounting plate. See Figures 36, 37, 38.
MULTIPLE TRANSMITTERS:
Each transmitter has been factory programmed with different private security codes. For
your information there are 284 trillion different codes. 2-channel transmitters have 2
different codes. 4-channel transmitters have 4 different codes. Additional transmitters
that come with the opener or are purchased separately as accessories have their own
different codes that must be changed to match your first transmitter.
Connect the programming tine to both transmitters. See Figures 38, 39, 39A and 39B.
Press and hold button on your present transmitter. Indicator light will blink. See Figure
39A. While still holding the 1st transmitter button, press and hold the button on the new or
second transmitter. Code transfer will occur in approximately 2 seconds when the indicator
light on the new transmitter illuminates continuously. See Figure 39B
The 315 mhz transmitters are “Home Link” compatible. Follow instructions furnished in the
automobile owners manual for non-rolling code applications.
TRANSMITTER OPERATION:
Press button until garage door begins to move. The indicator light on the transmitter will
be blinking. Press button at any time during travel to stop the garage door. See Figure 40
FIGURE 37
FIGURE 38
FIGURE 39
SNAP VISOR CLIP INTO SOCKET
FIGURE 39A FIGURE 39B
FCC Certified: This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
MINI
TRANSMITTER
COPYRIGHT © 2003 MARTIN DOOR 17
PRESENT
TRANSMITTER
NEW OR SECOND
TRANSMITTER
PRESENT
TRANSMITTER
NEW OR SECOND
TRANSMITTER
INDICATOR
LIGHT
MARTIN MARTIN
MARTINMARTIN
PRESENT
TRANSMITTER
NEW OR SECOND
TRANSMITTER
INDICATOR
LIGHT
MARTIN
COIN
MARTIN
TRANSMITTER
FIGURE 40
VISOR CLIP COVER
(REMOVE SMALL
COVER TO EXPOSE
VISOR CLIP SOCKET)
VISOR CLIP SOCKET
PROGRAMMING
TINE
MINI TRANSMITTER
BACK
BATTERY
(#CR2032)
MINI TRANSMITTER
FRONT
CIRCUIT BOARD
3 BUTTON MICRO
TRANSMITTER
(OPTIONAL) 4 BUTTON MINI
TRANSMITTER
(OPTIONAL)
MR
TN
A I
SCREW
MOUNTING PLATE
(OPTIONAL MAY BE USED AS
A WALL CONTROL ETC.
)
MINI
TRANSMITTER
PROGRAMMING
TINE
PROGRAMMING
TINE
PROGRAMMING
TINE

***STEP 15 CONTINUED***
ANTENNA:
The optional 315 mhz antenna wire on the back of the opener is about 13”(340)
long and can have multiple arrangements for the best distance. In a "normal installation"
the distance from the transmitter to the power head should be 50' (15000) to 150' (45000).
Do not lengthen or shorten the antenna. See Figures 41, 42.
NOTE: The distance from the transmitter to the opener power head may be reduced by
electrical interference in the area, spherical disturbances in the area, various lights
or transformers in and out of the garage, automatic sprinkler system timers,
various audible or inaudible sounds, noise, radio signals in the area, concrete,
steel or lead in and around the garage, antenna wire touching any metal. If
necessary, use plastic or string type ties to keep antenna wire away from punched
angle, etc.
STEP 16
WALL CONTROL/PUSH BUTTON OPERATION
The wall control button will illuminate when the wires are properly connected as explained
in Step 8.
Press wall control/push button until garage door begins to move. Press button at any
time during travel to stop the garage door. See Figure 43.
The vacation lock-out feature on the wall control is used to lock out all remote control
transmitters. The wall control button or keyless entry system can still activate the door.
Press and hold vacation lock button for 2-3 seconds to activate lock-out. The wall control
button will blink continuously while lock mode is active. To unlock, press and hold vacation
lock button for 2-3 seconds. The wall control button will then return to normal illumination.
See Figure 43
NOTE: The opener will accept multiple wall controls/push buttons if the wires are properly
connected as explained in STEP 8.
OPENER LIGHTS OPERATION:
Lights will illuminate for about 4 minutes whenever opener is activated. Lights will blink if
the opener senses an obstruction. To stop lights from blinking, remove obstruction and
operate door normally.
Lights can be turned on and off by manually pushing light switch button on the wall
control. Lights turned on manually can only be turned off by manually pushing light switch
button or by opening and closing the door. See Figure 43.
receiver
FIGURE 41
FIGURE 42
FIGURE 43
ANTENNA
WIRE
PUSH
BUTTON
(DC2500e)
COPYRIGHT © 2003 MARTIN DOOR
18
MARTIN
VACATION LOCK
BUTTON
LIGHT SWITCH
BUTTON
WALL CONTROL
BUTTON
WALL
CONTROL
(DC3700e)
DC2500e
DC3700e
ANTENNA
WIRE

FIGURE 44
STEP 17
R
STEP 18
BELT OR CHAIN AIL ASSEMBLY TENSION ADJUSTMENT
Your pre-assembled Belt or Chain Assembly comes from the factory with the tension
adjusted to factory specifications. There should be no need for adjustment.
CHECKING TENSION:
Release trolley from belt or chain connector. The tension nut/washer should be spaced
approximately 1/16" (1.5) from the stationary end-stop arch at the
header end of the rail assembly. See Figure 45.
ADJUST THE TENSION:
Increase tension by tightening tension nut clockwise.
Decrease tension by loosening tension nut
counterclockwise.
TO SHORTEN BELT OR CHAIN RAIL ASSEMBLY UP TO 24” (610):
(See exploded view of rail assemblies on Page 21)
Note: For trained Martin Garage Door Dealers: Consult factory if cut-off is more than 24”
(610) because the position tab must be kept in the proper location.
Loosen belt or chain tension as much as possible.
Remove screws from sprocket holder and rail end-stop.
Slide belt or chain and all rail assembly parts out of rail assembly from header end.
Measure and cut off excess rail assembly (1” (25) increments only) from header end.
Disassemble connector assembly to expose free ends of belt or chain.
Use the same measurement as the excess rail assembly length and cut the same
amount off both free ends of the belt or chain.
Use rail assembly end-stop as a guide, mark and drill two 3/16" holes on rail
assembly sides for rail assembly end-stop screws.
Fasten both ends of the belt ribs or the chain links to the connector assembly.
Slide all rail assembly parts into rail assembly from header end according to
original assembly.
Tension the belt or chain following STEP 17.
FIGURE 45
HEADER END OF RAIL ASSEMBLY BELT OR CHAIN
(BELT SHOWN)
THTE HI O
IG N T S DIRECTI N
RAIL END-STOP
WRENCH
VIEW FROM BELOW
IMPROPER TENSION - TOO LOOSE
PROPER TENSION
RAIL END-STOP
RAIL END-STOP
RAIL ASSEMBLY
RAIL ASSEMBLY
TENSION NUT
AND WASHER
TOO MUCH
SPACE
STATIONARY
END-STOP
TENSION NUT
AND WASHER
CORRECT
SPACE IS 1/16”(1.5)
STATIONARY
END-STOP
HEADER END
HEADER END
COPYRIGHT © 2003 MARTIN DOOR 19