Chamberlain 3000 User manual

©
The Chamberlain Group, Inc.
A DUCHOSSOIS ENTERPRISE
845 Larch Avenue
Elmhurst, Illinois 60126
OWNER'S MANUAL
SERIES 3000
MODEL GT
INDUSTRIAL DUTY
GEARHEAD TROLLEY OPERATOR
®
®COMMERCIAL DOOR OPERATOR
LISTED
NOT FOR RESIDENTIAL USE
Serial #
(located on electrical box cover)
Installation Date
Wiring Type

2
MIN. CLEARANCE
OF 2" FROM HIGH
ARC OF DOOR TO
BOTTOM OF TRACK
DOOR HEIGHT + 4'
14"
27-7/8"
15-5/8"
Ref.
WEIGHTS AND DIMENSIONS
HANGING WEIGHT: .......85 LBS.
HOW TO ORDER REPAIR PARTS
OUR LARGE SERVICE ORGANIZATION
SPANS AMERICA
INSTALLATION AND SERVICE INFORMATION
ARE AVAILABLE 6 DAYS A WEEK
CALL OUR TOLL FREE NUMBER - 1-800-528-6563
HOURS 7:00 TO 3:30 p.m. (Mountain Std. Time)
MONDAY Through SATURDAY
WHEN ORDERING REPAIR PARTS
PLEASE SUPPLY THE FOLLOWING INFORMATION:
PART NUMBER DESCRIPTION MODEL NUMBER
ADDRESS ORDER TO:
THE CHAMBERLAIN GROUP, INC.
Electronic Parts & Service Dept.
2301 N. Forbes Blvd., Suite 104
Tucson, AZ 85745
MECHANICAL
DRIVE REDUCTION:
1st Reduction:..................10: Gear Reducer
2nd & 3rd Reductions: ....#41 Chain and Sprockets
Output:..............................#41 Chain
OUTPUT SHAFT SPEED:.100 R.P.M.
DOOR SPEED:....................11 inches per sec.
BEARINGS: ......................Ball Bearings on Output Shaft
BRAKE:.............................Solenoid Drum Brake
SAFETY
DISCONNECT:..................Spring Loaded Trolley
Disconnect Arm
CLUTCH:...........................Adjustable Friction Type
REVERSING EDGE:.........(Optional)
Electric or Pneumatic Sensing Device attached to the
Bottom Edge of Door.
A REVERSING EDGE IS STRONGLY
RECOMMENDED FOR
ALL COMMERCIAL
OPERATOR INSTALLATIONS.
REQUIRED WHEN THE
3 BUTTON CONTROL STATION IS OUT OF SIGHT OF
DOOR OR ANY OTHER CONTROL (AUTOMATIC OR
MANUAL) IS USED. SEE PAGE 8.
MOTOR
TYPE:................................Continuous Duty
HORSEPOWER:...............1/2, 1/2, 3/4 & 1 HP
Single or Three Phase
SPEED: .............................1725 RPM
VOLTAGE:.........................115/208-230 Single Phase
208-230/460 Three Phase
CURRENT: ........................See Motor Nameplate
SPECIFICATIONS
ELECTRICAL
TRANSFORMER: ...........24VAC
CONTROL STATION:.....3 Button
OPEN/CLOSE/STOP NEMA 1
WIRING TYPE: ...............B2 (Standard)
Momentary Contact to OPEN/CLOSE/STOP plus
Wiring for Sensing Device to Reverse and Auxiliary
Devices to Open and Close with Open Override (Other
types available. See chart.)
LIMIT ADJUST:.................Linear Driven, Fully
Adjustable Screw Type Cams. Adjustable to 22 feet.

ASSEMBLE TRACK AND OPERATOR
1.Fasten track to the operator frame. DO NOT
TIGHTEN BOLTS. See Figure 1.
2. Position the trolley on the track. Attach track
spacer(s).
3. Place idler shaft bracket over end of track. There
are two holes on each side of bracket (Figure 1).
Fasten shaft bracket to end of rail assembly.
3
4. Align track so that trolley moves easily and does
not bind. Tighten all bolts.
5. Run chain around front and rear sprockets and
attach to trolley assembly with master links. Adjust
chain only until excessive slack is removed. To
retain proper tension, tighten 3/8" lock nut.
Check the identification tag mounted on the electrical box to be
sure the voltage, phase and h.p. are correct for your needs.
12/6/91 - 4/27/92
Track
Track
Spacer
Trolley
Idler
Shaft
Idler Shaft
Bracket
Header
Bracket
FIGURE 1
KEEP DOOR BALANCED. STICKING OR BINDING
DOORS MUST BE REPAIRED. DOORS, DOOR
SPRINGS, CABLES, PULLEYS, BRACKETS AND
THEIR HARDWARE MAY BE UNDER EXTREME
TENSION AND CAN CAUSE SERIOUS PERSONAL
INJURY OR DEATH. CALL A PROFESSIONAL DOOR
SERVICEMAN TO MOVE OR ADJUST DOOR
SPRINGS OR HARDWARE.
WARNING
DO NOT CONNECT ELECTRIC POWER UNTIL
INSTRUCTED TO DO SO.
CAUTION

4
FOR METAL BUILDINGS ONLY: A strong mounting
surface for the operator front header bracket is
needed. On the wall above the center stile, weld or
bolt a 2"x2"x1/4" piece of angle iron or another
suitable, heavy-duty material as shown in Figure 2.
6. Draw a vertical line on header (or reinforcement
material) above center stile of door.
7.Raise the door to its high arc point. Use a
carpenter's level to locate high arc point on wall
above door center stile as shown in Figure 3. Make
a horizontal line, intersecting the vertical centerline
mark.
8. Close the door and refer to Figure 4. Position
operator chassis on the floor with the bottom edge
of header bracket 2" above horizontal mark and
centered on vertical line. Mark mounting holes.
FOR METAL BUILDINGS: Drill 3/8" holes for
fastening bolts. FOR CONCRETE BUILDINGS: Drill
3/8" holes for anchor bolts, following manufacturer's
instructions.
NOTE: Be sure header bracket is level before
tightening the bolts.
INSTALL OPERATOR
CAUTION: AT LEAST TWO PERSONS AND A STRONG, SAFE WORKING PLATFORM ARE REQUIRED
FOR THE INSTALLATION OF OPERATOR.
Building
Support
2"x 2"x 1/4"
Angle Iron
Vertical
Centerline
Center
Stile
Carpenter's
Level Header
Wall
High Arc
Point
FIGURE 3
FIGURE 2
2" Header
Bracket
High Arc
Point of Door
FIGURE 4
Header
Wall
TO AVOID DAMAGE TO DOOR AND OPERATOR,
MAKE ALL DOOR LOCKS INOPERATIVE. SECURE
LOCK(S) IN "OPEN" POSITION.
IF THE DOOR LOCK NEEDS TO REMAIN
FUNCTIONAL, INSTALL AN INTERLOCK SWITCH.
DO NOT RUN THE OPERATOR BEFORE MAKING
LIMIT SWITCH ADJUSTMENTS.
CAUTION

9. Raise operator straight up until the door can be
raised to the full open position. See Figure 5.
Temporarily secure to ceiling or rafters with rope
or other suitable means.
10. Raise door to full open position. Place a 2x4
board on top of leading edge of door. Lower
operator to rest on 2x4 board.
Make four hangers from 2"x2"x1/4" angle iron. IT IS
RECOMMENDED THAT RAIL BE CENTER-
SUPPORTED AS WELL. Bolt the operator into place.
5
COIL CORD (OPTIONAL)
REFER TO (A) IN ILLUSTRATION
Connect operator end of coil cord to junction box (not
supplied) fastened to the wall approximately half-way
up the door opening.
Electrician must hardwire the junction box to the
operator electrical box in accordance with local
codes. REEL (OPTIONAL)
REFER TO (B) IN ILLUSTRATION
Take-up reel should be installed 12" above the top of
the door.
A
B
Reversing
Edge
Center
Stile Air Hose
Pneumatic Air Switch
Not Required or Supplied
When Electric Sensing
Edge is Used
Hanger Angles
2"x2"x1/4"
Track
Spacer
Door
Arm
Rope
Release
Door
Bracket
Building
Support
2"x2"x1/4"
Angle Iron
Trolley Wire 24V
FIGURE 5


FAILURE TO SUSPEND THE OPERATOR
SECURELY MAY RESULT IN SERIOUS PERSONAL
INJURY OR DEATH, AND/OR PROPERTY DAMAGE.
WARNING

CONNECT OPERATOR TO POWER SUPPLY AND INSTALL CONTROL STATION
Door Arm
Center Stile
Door
Bracket Reinforcement
Brace
Trolley
6
11. Complete the electrical connections to operator
and control station (Refer to Control Connection
Diagram, Pg. 20). Fasten the control station to the
wall.
FASTEN THE WARNING NOTICE BESIDE OR
BELOW THE PUSH BUTTONS.
12. Apply power to operator. Press either the OPEN
or the CLOSE push button and observe direction
of trolley travel. Press the STOP button.
If trolley did not move in the correct direction,
check for improper wiring at control station or
between opener and control station.
If electrical problems persist, call our Toll Free
number (1-800-528-6563) for assistance.
CONNECT DOOR ARM AND BRACKET
14. With door CLOSED, snap door arm onto operator
trolley. Position door bracket against reinforced
center stile of top section of door. Make sure arm
is straight and centered on stile. Mark bracket
holes. Drill and fasten with 5/16" bolts.
NOTE 1: Choose a set of holes which aligns door
arm in a near vertical position.
NOTE 2: If door strut interferes with placement of
door bracket, position bracket below strut. DO
NOT CUT OR MODIFY STRUT.
Attach door arm to door bracket using 3/8"-16x1"
screw and lock nut.
WARNING
DISCONNECT POWER AT THE FUSE BOX BEFORE
PROCEEDING.
OPERATOR MUST BE PROPERLY GROUNDED AND
CONNECTED IN ACCORDANCE WITH LOCAL
ELECTRICAL CODES. THE OPERATOR SHOULD BE
ON A SEPARATE FUSED LINE OF ADEQUATE
CAPACITY.
ALL ELECTRICAL CONNECTIONS MUST BE MADE
BY A QUALIFIED INDIVIDUAL.
CAUTION
TO AVOID DAMAGE TO DOOR AND OPERATOR,
MAKE ALL DOOR LOCKS INOPERATIVE. SECURE
LOCK(S) IN "OPEN" POSITION.
IF THE DOOR LOCK NEEDS TO REMAIN
FUNCTIONAL, INSTALL AN INTERLOCK SWITCH.
WARNING
INSTALL THE CONTROL STATION WHERE THE
DOOR IS VISIBLE, BUT AWAY FROM THE DOOR AND
ITS HARDWARE. IF CONTROL STATION CANNOT BE
INSTALLED WHERE DOOR IS VISIBLE, OR IF ANY
DEVICE OTHER THAN THE CONTROL STATION IS
USED TO ACTIVATE THE DOOR,
A REVERSING
EDGE MUST BE INSTALLED ON THE BOTTOM OF
THE DOOR.
FAILURE TO INSTALL A REVERSING
EDGE UNDER THESE CIRCUMSTANCES MAY
RESULT IN SERIOUS INJURY OR DEATH TO
PERSONS TRAPPED BENEATH THE DOOR.
CAUTION
DO NOT ALLOW TROLLEY TO OVERRUN FRONT
IDLER SPROCKET OR RUN INTO OPERATOR
HEAD. LIMIT SWITCHES MAY NOT BE IN THE
PROPER POSITIONS. (See Limit Adjustments).
CAUTION
REINFORCE CENTER STILE WITH A VERTICAL
BRACE. USE A PIECE OF ANGLE IRON THAT WILL
SPAN THE HEIGHT OF TOP PANEL. DO NOT CUT
HORIZONTAL STRUT.
13. Operate push button so that the trolley moves
forward (toward close position). Press STOP
button when trolley is approximately 10" from
front wall.
REFER TO MASTER WIRING DIAGRAM.
MAKE CONNECTION THROUGH THE 1-1/16" DIA. LABELED HOLE. DO NOT RUN CONTROL WIRES IN
THE SAME CONDUIT AS THE POWER WIRES.
WARNING
TO PREVENT ENTRAPMENT
DO NOT START DOOR DOWNWARD
UNLESS DOORWAY IS CLEAR
OPEN
CLOSE
STOP
Control Station
WARNING Notice
Push
Buttons

WARNING
TO AVOID SERIOUS PERSONAL INJURY OR DEATH
FROM ELECTROCUTION, DISCONNECT ELECTRIC
POWER BEFORE PROCEEDING WITH THE
FOLLOWING ADJUSTMENTS.
ADJUST LIMITS
MAKE SURE LIMIT NUTS ARE POSITIONED
BETWEEN LIMIT SWITCH ACTUATORS BEFORE
PROCEEDING WITH ADJUSTMENT.
1. Depress open limit switch. The operator should
stop.
2.To increase door travel, spin nut away from
actuator. To decrease door travel, spin limit nut
toward actuator.
3. Adjust open limit nut so that door will top in open
position with the bottom of the door even with the
top of the door opening.
4. Repeat Steps 1 and 2 for close cycles. Be sure
close limit actuator is engaged as door fully seats
at the floor.
If other problems persist, call out toll-free number
for assistance: 1-800-528-6563.
ADJUST THE TORQUE LIMITER
1.Press OPEN button and observe door and
operator.
2. If door does not move due to slippage of Torque
Limiter, press STOP button.
3. Adjust Torque Limiter as follows:
a. Bend down tab on tab washer.
b. With a 1-7/8" wrench, tighten adjusting nut
1/8th turn.
4. Repeat Steps 1, 2 and 3b until door operates
properly.
5. Bend up at least one tab on tab washer against
adjusting nut to retain setting.
NOTE: The torque Limiter will require periodic
inspection and possibly readjustment.
CAUTION: The Torque Limiter is not intended to
be a reversing device. A pneumatic or electric
reversing edge may be added for that purpose.
If properly adjusted, the Torque Limiter will provide a
degree of protection for the door and operator by
slipping under overload conditions.
ADJUST THE BRAKE
COMPRESSION SPRING
1. Compress spring to the 9/16" dimension by turning
screw. Do NOT spread brake shoes with cone
shaped stud while adjusting spring height.
2. Test for proper brake operation and replace brake
housing cover.
3. The brake assembly is self-adjusting and should
not require further adjustment until brake shoes or
drum are replaced due to wear. Check for wear
every 3 months.
7
CLOSEOPEN
ADLSSLS
OLS
CLS
Open Limit
Nut
Travel Nut
Retainer
Close Limit
Nut
Actuator Actuator
Open Limit
Switch
Close Limit
Switch
Springs (2) Locking Tab Washer
(After adjustment
fold at least
one tab as shown.)
Adjusting Nut
Bearing
Frame
Compression
Spring
(177B127)
Brake
Shoe
(1B3617)
Cone
Shaped
Stud
(179A46)
9/16"
(+ or – 1/32")

8
Header
Bracket
Straight
Door Arm
Assembly
1C3681
Emergency
Release
Handle
Door
Bracket
12B0407
Door
Chain
Clevis
Pin
Trolley
Emergency
Disconnect
Track
Curved
Door Arm
178B0045
NOTICE
TO DISCONNECT 
DOOR FROM OPENER
Pull emergency
release handle
straight down.
Emergency
disconnect
will open.

Emergency
Disconnect

Door Arm

EVERY EVERY EVERY
ITEM PROCEDURE 3 MONTHS 6 MONTHS 12 MONTHS
Drive Chain Check for excessive slack.
Check & adjust as required.
Lubricate.* ●✔
Sprockets Check set screw tightness ●✔
Torque Limiter and Brake Check & adjust as required ●✔
Gear Reducer** Check for leaks and replace
seals as needed ●✔
Fasteners Check & tighten as required ●✔
Manual Disconnect Check & Operate ●✔
Bearings & Shafts Check for wear & lubricate ●✔
CONNECT REVERSING EDGE
DEVICE (OPTIONAL)
The operator has been pre-wired to accept
connection of a reversing edge device. Connect the
normally open contacts to terminals T6 and T8 on the
low voltage terminal block. A cut-off switch will
deactivate the safety device during the last few
inches of the door's downward travel.
MAINTENANCE SCHEDULE:
Check at the intervals listed in the following chart.
✳ Use SAE 30 Oil (Never use grease or silicone spray).
✔Repeat ALL procedures.
■ Do not lubricate motor. Motor bearings are rated for continuous operation.
■Do not lubricate clutch or V-belt.
■Inspect and service whenever a malfunction is observed or suspected.
■CAUTION: BEFORE SERVICING, ALWAYS DISCONNECT OPERATOR FROM POWER SUPPLY.
TO RECONNECT
DOOR ARM TO TROLLEY
Lift free end of
door arm to trolley.
Pull emergency handle
to allow arm to engage
clevis pin. Release
handle. Emergency
disconnect will close.
Emergency
Disconnect

Door Arm

EMERGENCY DISCONNECT SYSTEM
WARNING
IF CONTROL STATION CANNOT BE INSTALLED
WHERE DOOR IS VISIBLE, OR IF ANY DEVICE
OTHER THAN THE CONTROL STATION IS USED TO
ACTIVATE THE DOOR,
A REVERSING EDGE MUST
BE INSTALLED ON THE BOTTOM OF THE DOOR.
FAILURE TO INSTALL A REVERSING EDGE UNDER
THESE CIRCUMSTANCES MAY RESULT IN
SERIOUS PERSONAL INJURY OR DEATH TO
PERSONS TRAPPED BENEATH THE DOOR.
WARNING
DOOR ARM IS RELEASED FROM TROLLEY WHEN
EMERGENCY DISCONNECT OPENS.
TO AVOID BEING STRUCK BY DOOR ARM, DO NOT
STAND UNDER THE ROPE OR DOOR ARM WHEN
PULLING THE EMERGENCY RELEASE.

9
MEMO:

10
3
2B2063B 
OPEN
LIMIT
SWITCH
AUXILARY
DEVICE LIMIT
SWITCH
NC
NO
1234567891011121314 1234567891011121314
C
Blue
P2 P1
P3
1
2

4
L2
L1 L3 OVERLOAD
PROTECTOR
LOAD
LINE
LINE
LOAD
Red
Red Red
Yellow
Gray
Blue
Orange
Brown
Brown
Brown
Blue
Org. Org.
Blue
Brown Brown
Blue
Gray
Yellow
Red
Orange
Org.
Blue
Yellow
Blue
Blue
Blue
Orange
Blue
Red
Brown Blue
Brown
RedRed
Red Red
Red
Red
Red
Red
Red
Black
Yellow
Yellow
Red
Black
T12 T11 T10 T9 T8 T7 T6 T5 T4 T3 T2 T1
123
Brown
Gry./Wht.
Yellow
Red
Black
Yellow
Orange
Blue
Orange
White
Blue
Red Red
White Orange
Orange
Orange
Black
Hot 115V 1Ø
Hot 230V 1Ø
Neutral 115V 1Ø
Hot 230V 1Ø
Open
Stop
TI TL SIR
SW4 SW3 SW2 SW1
Open/Close
Sensing Device
Open/Timer Close
Black
Red
BRAKE
(IF
REQUIRED)
OPEN CLOSE
A2
13 L3
T2 T1
NO NO NO NO NO NO NO NO
14 T3 T2 T1
A2
NO NO NONONO NO NONO
A2 A1
L2 L1 13 L3
A2 A1
L2 L1
14 T3
Red
Remove Jumper to Install
Timer Defeat Switch.
TRANSFORMER
230V
Only
115V
Only
SW5
Delay to
Open Timer
(Optional)
RADIO CONTROL
MOTOR
GND
Org.
Orange
Org.
14D0379
Close
NC
NO
C
SENSING
LIMIT
SWITCH
NC
NO
C
CLOSE
LIMIT
SWITCH
NC
NO C
Red
Brown
Org.
Red
Yellow
Brown
Brown
Gray
Interlock
(When Used)
GT SINGLE PHASE WIRING DIAGRAM
(For P.C. Board #14D0379)