Manaras Opera-MH Service manual

I In ns st ta al ll la at ti io on n & & I In ns st tr ru uc ct ti io on n M Ma an nu ua al l
Note:
Read this manual carefully before
installing the operator and place this installation
manual in an accessible place near the
operator. For future reference record:
Model #
Date
Wiring Diagram #
Serial #
Project No.
Project Name
Door No. #
O
Op pe e
r
r
a
a- -M MH HO
Op pe e
r
r
a
a- -M MJ J
®
TM

2
IMPORTANT SAFETY INSTRUCTIONS
WARNING
TO REDUCE THE RISK OF SEVERE INJURY OR DEATH, READ AND FOLLOW ALL INSTRUCTIONS
1. Never allow children to operate or play with or near door.
2. Check to see that the operator is correct for the type, size of door and frequency of use per the
operator specifications.
3. If the door system is near a residential area, or pedestrian traffic is expected near the door system,
additional equipment such as electric reversing edges, photocells, or similar devices must be installed
as part of the system to prevent entrapment.
4. Reversing devices appropriate to the application must be installed as part of the system.
5. Outdoor or easily accessible controls must be of the security type to prevent unauthorized use of the
system.
6. Place controls far enough from the door so that a user cannot touch the door when operating the
controls.
7. Controls should be placed so the user has full view of the door when operating.
8. Always keep moving door in sight and away from people or vehicles until it is completely opened or
closed. NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
9. If a person is trapped under the door, push the "OPEN" control button.
10. Do not overtighten a clutch to compensate for a damaged door.
11. Test door and service monthly. After adjusting the limit travel, retest the door opener. Failure to adjust
the door may cause death or injury.
12. KEEP DOORS PROPERLY BALANCED. See door owner's manual. An improperly balanced door
could cause severe injury. Have a qualified service person make repairs to cables, spring assemblies
and other hardware.
13. If possible, use the emergency release only when the door is closed. Use caution when using this
release with the door open. Weak or broken springs may cause the door to fall rapidly, causing injury
or death.
14. You are responsible for assuring that the owner of the door system understands its basic operation and
safety. In particular, be sure the owner/end-user understands the location and operation of the manual
disconnect.
15. Point out to the owner/end-user of the door system that children or pets should not be allowed to play
on or near the door or any part of the system, and that the safety instructions supplied with this
operator are the responsibility of the owner/end-user.
16. Leave the installation and maintenance manual for this operator as well as any additional information
supplied with this operator or other components of the door system with the owner/end-user.
17. If you have any question about the safety of the door operating system, do not install the operator,
contact us.
WARNING
DO NOT CONNECT POWER SUPPLY WHILE INSTALLING, SERVICING OR ADJUSTING THE ELECTRIC
OPERATOR
WARNING
NOT APPLICABLE FOR RESIDENTIAL USE. ONLY FOR INDUSTRIAL AND COMMERCIAL APPLICATIONS

3
TABLE OF CONTENTS
Page
GENERAL PARTS & SPECIFICATIONS ..................................................................................................4
WEIGHT AND DIMENSIONS ....................................................................................................................4
PRODUCT APPLICATION.........................................................................................................................5
DELIVERY OF OPERATOR ......................................................................................................................5
HARDWARE ..............................................................................................................................................5
INSTALLATION.....................................................................................................................................6-10
LIMIT SWITCHES ...............................................................................................................................10-11
SUGGESTED WIRE SIZE .......................................................................................................................11
WIRING OF AN Opera........................................................................................................................12-13
B2/C2 WIRING.........................................................................................................................................14
OPTIONAL CONTROL ACCESSORIES .................................................................................................15
CONNECTION OF SAFETY EDGE.........................................................................................................16
CLUTCH ADJUSTMENT .........................................................................................................................16
OPERATOR START-UP AND TESTING GUIDE ....................................................................................18
TROUBLESHOOTING GUIDE ...........................................................................................................18-20
SCHEDULED MAINTENANCE................................................................................................................21
Opera-MH exploded view.........................................................................................................................22
Opera-MJ exploded view .........................................................................................................................23
Opera-MH/MJ STANDARD ELECTRICAL DIAGRAM ............................................................................24
Opera-MH/MJ STANDARD ELECTRICAL DIAGRAM………………………………………………………..25
WARRANTY……………………………………………………………………………………………………….26
NOTES ....................................................................................................................................................27

4
SPECIFICATIONS
GENERAL
DIMENSIONS
(Opera-MH)
SUPPLY VOLTAGE………………….. 115 VAC single phase
CONTROL VOLTAGE………………. 24VAC class 2 transformer, 2 amp fuse type ACG
MOTOR………………………………. Intermittent duty ½ Horsepower
OPERATOR OUTPUT SPEED……… 39 RPM
NET WEIGHT (Operator only)……… 71 Lbs (33 Kg) for Opera-MH and 61lbs (28 Kg) for Opera-MJ
STANDARD WIRING TYPE………… C2-momentary contact to open and stop and constant pressure to close

5
OPERA: MEDIUM DUTY JACKSHAFT OPERATOR
IMPORTANT: UPON COMPLETION OF OPERATOR INSTALLATION THIS MANUAL MUST BE GIVEN
TO THE END-USER.
1. PRODUCT APPLICATION
The model OPERA medium duty jackshaft operator is designed for use on commercial or industrial doors
of all types provided that the door has a shaft as basic driving element (sectional doors with high lift, vertical
lift, small rolling doors and grilles). All OPERA door operators are designed and constructed in accordance
with UL325 Standard, and certified by CSA Laboratories.
2. DELIVERY OF OPERATOR
Upon delivery of your medium duty jackshaft operator OPERA, inspect the unit immediately for shipping
damage. Verify that you have received all the hardware parts mentioned in TABLE 1 and shown in Figure 1.
Other items may be present, such as radio controls or other types of optional equipment, if ordered. If any
item is missing or if there is evidence of damage, call the transport company first.
* Check to make sure that the available power supply to be connected to the operator is of the same voltage,
frequency, phase and amperage as indicated on the nameplate of the operator.
3. HARDWARE
TABLE 1 STANDARD PARTS LIST FOR OPERA JACKSHAFT OPERATOR
PART # QTY DESCRIPTION
1 1
Pocket wheel hand chain (2X door shaft less 4 ft. (1.2m)) for Opera-MH or disconnect chain
(14’) for Opera-MJ
2 1 3-button open/close/stop push-button station
3 1 #41 connecting link
4 1 #41 roller chain x 4'(1.2m) or x 5’ when sprocket is 42 teeth or more.
5 1
** Sprocket 41B x " c/w set screws for door shaft
6 1
Sprocket 41B12 x 1,0 " c/w set screws for OPERATM output shaft
7 1 Square shaft key 1/4" x 1-1/2" L for OPERATM output shaft
8 1 Chain keeper for Opera-MJ only
9 4 3/8" x 1-1/4" bolts
10 4 3/8" washers
11 4 3/8" lock washers
12 4 3/8" nuts
13 1 Chain keeper for Opera-MH only
** See SPECIFICATIONS, DOOR SPEED AND AVAILABLE DOOR ADJUSTMENT
Figure 1 Hardware and Warning Tag
WARNING
TO PREVENT ENTRAPMENT,
DO NOT START DOOR DOWN UNLESS
DOORWAY IS CLEAR
AVERTISSEMENT
POUR ÉVITER TOUT COINCEMENT, NE
PAS ABAISSER LA PORTE TANT
QUE L’EMBRASURE N’EST PAS LIBRE.
Ensure that the Warning tag supplied with
the operator is properly fixed on the door
and it is visible while the door is moving

6
4. INSTALLATION
All medium duty OPERA jackshaft operators are tested and adjusted at the factory. When installing your
unit, please note that the cams are resting in the center of the cam-shaft.
The OPERA operator has a dual output shaft and may be mounted on either the left or right hand side of
a sectional door (see Figure 2 and Figure 3). Place sprocket on either the right or the left end of the
output shaft according to the desired handing.
The Opera-MH comes with a chain hoist located on the right of the operator. If handing requires the
chain hoist to be on the left (rolling doors, left operator hood mounting for ex.), it must be requested at the
time of ordering. Do not attempt to change handing of the chain yourself.
Figure 2 Left side Figure 3 Right side
4.1 IMPORTANT INSTALLATION INSTRUCTIONS
WARNING
TO REDUCE THE RISK OF SEVERE INJURY OR DEATH, READ AND FOLLOW ALL INSTALLATION
INSTRUCTIONS.
1. Installation of this door operator must be done by a qualified installer.
2. Insure that the door is properly installed and works freely in both directions. Do not install the
operator until all door problems have been corrected. If necessary, oil all moving parts (chains,
rollers, guides, etc.).
3. Remove all old accessories (locks, bolts, etc.) before installing door operator.
4. Do not connect the operator to a source of power until instructed to do so.
5. Locate control push-button station within sight of the door, at a minimum height of 5 ft. (1.5 m) so
small children cannot reach it, and away from all moving parts of the door.

7
4.2 INSTALLATION OF OPERA OPERATOR
IMPORTANT NOTE: THIS OPERATOR MUST BE INSTALLED A MINIMUM OF 8 FT. (2.4 m) ABOVE FLOOR.
The OPERA has two sets of mounting holes: outside the frame for wall mounting and inside the frame for
hood mounting.
To open the control box cover, loosen the screw at the base of the cover. If the cover cannot be fully
opened, the retaining arm may be used to hold the cover in other positions (Figure 4).
Figure 4 Control box cover opening
After installation, verify that there is no obstacle in the way when opening the control box cover. If so, it is
possible to remove the cover by unscrewing it from the box before putting the operator on the wall or
hood (see Figure 5).
Locate the four mounting holes. The optimum distance between the door shaft and operator drive shaft is
between 12" and 15". Mount the OPERA unit by fastening it to the wall, bench or hood with 3/8" or 1/2"
thru-bolts or if the wall is of such construction so as to prohibit use of thru-bolts, lag bolts and shields of
sufficient size may be used. Do not tighten.
Fi
g
ure 5 Unscrewing the cover from the control box
Retaining
arm
Remove the screw
Remove the screw

8
Figure 6 Mounting dimensions for wall or hood
CAUTION
MAKE CERTAIN THAT OPERATOR IS PERFECTLY ALIGNED WITH DOOR SHAFT OTHERWISE
DAMAGE CAN OCCUR
1. Place the driven sprocket on the door shaft loosely and align it with the drive sprocket of the
operator.
NOTE: If a chain spreader has been ordered along with your operator, see Figure 7 and Figure
8 below for installation.
Figure 7 Chain spreader Figure 8 Chain spreader mounted on door and
operator shafts

9
2. Lock the drive and driven sprockets in place by inserting the keys and tightening their respective set
screws.
3. Connect the sprockets with the drive chain, shorten to a suitable length and join together with the chain
link provided in the hardware bag. To shorten the chain, punch out the pin that will leave an inside link
nearest to the desired length. Connect the chain around the sprockets using the chain link (Figure 9).
Figure 9 Chain link
4. Slide the operator to tighten the drive chain and then firmly tighten the mounting bolts. Check the
tension on the chain and the set screws on the sprockets (there should be no more than 1/4" slack
when chain is depressed between sprockets
5. Opera-MH: run hand chain through the pocket wheel and through the chain guide outside the frame
(Figure 10A), allow both ends to hang down toward the ground and cut hand chain, if necessary, so
that both ends are approximately 2 feet (0.6 m) from floor. Connect both ends of hand chain.
6. Opera-MJ: link the disconnect chain at the key ring or hook located at the extremity of the disconnect
pull cable (Figure 10B) Place the Opera-MJ chain keeper so that, when pulled and engaged, the
disconnect chain keeps the machine ‘’disconnected’’ and in the manual position.
CAUTION
BEFORE PULLING HAND CHAIN THROUGH POCKET WHEEL OR LIFTING THE DOOR DIRECTLY BY HAND,
PULL CAM PLATE AND SPIN CAM NUTS TO CENTER OF LIMIT SHAFT SO AS TO BE SURE THE CAMS ARE
NOT BEING MECHANICALLY DRIVEN THROUGH THEIR NORMAL LIMIT SWITCH END POSITIONS.
Figure 10 A. Installing hand chain on Opera-MH
Keyring
or
Hook
Figure 10 B. Installing disconnect chain on Opera-MJ

10
4.3 LIMIT SWITCHES
WARNING
TO AVOID THE DANGER OF POSSIBLE DAMAGE TO THE DOOR AND OPERATOR, TRAVELLING
CAMS MUST BE ADJUSTED TO THEIR APPROXIMATE POSITIONS BEFORE MANUALLY
OPERATING THE DOOR OR BEFORE APPLYING POWER TO THE OPERATOR.
There are 4 limit switches. Two are used as end of travel, one is for radio-control or one-button
operation and one is for reversing devices. These switches are activated by the rotary cams travelling on
a threaded shaft (Figure 11).
ADJUSTMENT OF LIMIT SWITCHES
WARNING
NEVER PLACE HANDS OR TOOLS INSIDE OPERATOR OR NEAR DRIVE MECHANISM UNLESS
POWER IS OFF.
1. Open the cover of the electrical enclosure.
2. Manually raise the door to a nearly opened position (see section 4.9)
3. Pull the travelling cam retaining bracket on the Open Position cam side and rotate the Open Position
cam (Figure 12).
Note: Turning the cam towards the center of the shaft increases door travel.
Turning the cam towards the switch decreases door travel.
4. Manually rotate the Open Position cam until the lever activates the Open limit switch sufficiently so
as to hear the switch click.
5. Release and engage the retaining bracket. Make sure that the bracket engages in the slots of both
limit cams after each adjustment.
6. Manually lower the door to a nearly closed position and repeat steps 3 through 5 with the Close
Position cam.
7. Upon completion of all wiring connections (section 4.5 and 4.6, repeat steps 2 through 6 using the
"Stop" button for adjustments of limit switches to their final, exact positions.
Fi
g
ure 11 Limit switches
"Advanced Open"
limit switch
"Open" limit switch
"Advanced
Close" limit
switch
"Close" limit switch
"Open Position" cam Cam retaining plate "Close Position" cam
Limit switches lever

11
ADJUSTMENT OF LIMIT SWITCHES
This unit is provided with ACCU-CAM ® for precise and quick one-handed adjustment feature.
Figure 12 Adjusting the limit cams
4.4 MINIMUM SUGGESTED WIRE SIZE FOR CONTROL CIRCUIT
The control circuit operates at 24 VAC. Due to the resistance in the wire used to carry the control circuit voltage,
it is important to use the appropriate wire size with respect to the distance between the operator and the push-
button station.
Below is a chart (TABLE 2) indicating the minimum recommended wire size with respect to the total
distance between the operator and the push-button station. DO NOT exceed the maximum distance. If
there are several push-button stations in series you must ADD all these distances before selecting the
appropriate wire gauge for your operator.
If the wire gauge is not suitable for the distance, problems in operation will be encountered such as chattering
relays and contactor, premature wear of the contacts and possible tripping of the motor's thermal protection.
If a greater distance is required, a long distance interface module is suggested (consult factory).
When large gauge wire is used, a separate junction box will be needed for operator power connection (not
supplied).
All power wiring to the operator should be installed by a qualified electrician and may vary with respect to
conduit size and type as specified in the National Electrical Code, Article 430, allowing 5% voltage drop. Power
must also be connected in accordance with local codes.
TABLE 2 WIRE SIZE vs. DISTANCE
24 VAC CONTROL WIRING
Minimum suggested
Wire gauge
(AWG)
Maximum distance between operator and all
Push-button stations
feet (meters)
22 50 (15)
20 100 (30)
18 150 (45)
16 250 (75)
14 350 (105)
12 450 (135)
Pull the traveling cam retaining bracket
on desired side to adjust cam position

12
4.5 WIRING OF THE OPERA OPERATOR
Do NOT connect any accessory controls until the limit switch adjustments have been completed and the
operator is functioning properly.
Refer to the electrical diagrams on pages 24, the wiring specifications in TABLE 2 and the terminal input
connections of Figure 19.
WARNING
EXERCISE CAUTION WHEN OPERATING MACHINE. THE DRIVE CHAIN AND LIMIT CHAIN, WHEN
EXPOSED AND TURNING, COULD CAUSE SEVERE INJURY.
NOTE: Wiring diagrams are found inside the control box cover. If the diagram is faded or damaged, call
the factory for a replacement. DO NOT INSTALL ANY WIRING OR ATTEMPT TO RUN THIS
OPERATOR WITHOUT CONSULTING THE WIRING DIAGRAM.
Main Power Supply
Power to the operator is of the permanent connection type. Connect according to local electrical code.
Ground the unit using the ground lug inside the control box.
IMPORTANT: Be aware of the dimension of the power supply cables pipe (BX for ex.) It must not limit the
controlbox movement to access the mechanical reduction parts. It is recommended to add 7 or 8 inches
For single-phase operators, connect the power supply to terminals L (line) and N (neutral) on the main
terminal strip.
Figure 13 Power supply connection
WARNING
GROUND THE UNIT CORRECTLY USING THE COPPER GROUND LUG LOCATED INSIDE THE
OPERATOR CONTROL BOX.
Note: All other connections on the terminal strip (1 to 9) are low voltage class II 24 VAC.
1. External interlock between terminals 1 and 2. A jumper is factory installed between these
two terminals. If an external interlock is used (such as interlocking between two doors),
remove the jumper between 1 and 2 and wire the interlock between these two terminals.
Figure 14 External interlock
Jumper
Interlock Device With
Normally Close Contact
Single
phase power
supply
Ground

13
2. A 3 button push-button station (open/close/stop) can be wired to terminals 2, 3, 4 and 5. Two push-button
stations can be wired to these same terminals by following the wiring diagrams on pages 24.
Figure 15 Three button push-button station
3. Three terminals are provided for the wiring of a radio-control receiver. Terminal #9 is Ground, #7 is 24
VAC (common) and #8 is the relay contact provided by the radio-control receiver to activate the door to
open or close. Furthermore, terminals 7, 8 and 9 are doubly available on the terminal strip inside and on a
separate small terminal strip located on the side of the unit. This terminal makes it convenient to wire-up a
standard single button radio receiver on the side of the unit. When the transmitter is activated, the door
will open to the fully open position. From the fully open position, the door will close. If transmitter is
activated while closing, the door will reverse to the fully open position.
NOTE: It may be required to reverse connections to 7 and 9 for other types or radio receivers (Allstar,
Linear, Pulsar ...).
Receiver
Figure 16 Radio-control
4. A single button open/close door device can be wired to terminals 7 and 8 to behave in the same way as
the radio control receiver.
Figure 17 Single button device
NOTE: If several control devices are to be used, connect one and check for proper operation before
connecting the next device.
5. A reversing edge can be wired up to terminals 3 and 6 (see also section 4.6). These terminals can also be
used for any other reversing devices such as loop detectors and photocells.
Figure 18 Reversing edge or other device
IMPORTANT: Upon completion of all wiring connections, readjust limits as mentioned in section 4.3 using
"Open", "Close" and "Stop" buttons.
Stop
Open
Close
24 V a. c.
Contact
Ground
Normally open
contact
NOTE: (select B2)
Radio Control = B2 wiring
Momentary contact to open, close
and stop with a 3 buttons station.
NOTE: (select B2)
Open/Close = Radio Control
Momentary contact to open and close
with single button station.

14
5. B2 AND C2 WIRING
For Safety reasons Manaras has decided to propose its standard operators with C2 wiring.
B2 can be set very easily by moving wires. This operation can be performed by the installer as shown below
or by Manaras when requested on the order.
WARNING
MOTORIZED DOORS CAN CAUSE SERIOUS INJURIES OR DEATH. MANARAS STRONGLY
RECOMMENDS THE USE OF ENTRAPMENT PROTECTION SYSTEMS, ESPECIALLY IN THE CASES
OF MOMENTARY CONTACT TO CLOSE AS IN B2 WIRING OR TIMER TO CLOSE.
Wiring types description
C2 wiring : momentary contact to open and stop, constant pressure to close with 3 push button station.
Activation of safety device will reverse the door during closing. Auxiliary devices to function as an
open/control, and to reverse the door during closing.
B2 wiring : momentary contact to open, close and stop with 3 push button station. Activation of safety device
will reverse the door during closing. Auxiliary devices to function as an open/close control, and to reverse the
door during closing.
How to change the wiring type :
C2 B2 (B2 wiring = Radio Control)
REMOVE THE SINGLE RED WIRE WITH RAPID CONNECTOR FROM TERMINAL #10 AND TRANSFER
IT TO TERMINAL #5.
B2 C2
REMOVE THE SINGLE RED WIRE WITH RAPID CONNECTOR FROM TERMINAL #5 AND TRANSFER IT
TO TERMINAL#10.
C2 B2

15
5.1. OPTIONAL CONTROL ACCESSORIES
Radio Controls: Consists of a radio receiver unit and remote transmitters. These controls consist of an RF
signal being emitted on a "pulse" basis to a mated receiver tuned to the same "pulse" rate. Once the receiver
accepts the code, a relay is activated closing a set of contacts.
Photo-electric units: Can be used as opening and reversing devices. An infra red light is emitted from the
control to a reflector and back. If, during closing travel of the door, the light beam is broken, the door will
reverse to the fully open position.
Digital Keypad: Consists of a control head which is pedestal mounted. Similar to a telephone touch pad it
allows the selective coding of a four number series. Once the programmed series of numbers is received in
their set order, a relay closes and completes a circuit.
Card Reader: A magnetic-mechanical device which accepts sealed and coded cards. The cards trigger
magnets to raise in the cartridge head, releasing a lock mechanism which allows a deeper insertion of the
card. The card then contacts a switch that closes the circuit.
Key Switch: Momentary contact will open door. Can be wall or post mounted for interior or exterior use.
Figure 19 Terminal Input Connections

16
5.2. CONNECTION OF A REVERSING EDGE DEVICE
IMPORTANT NOTE: If the door is controlled by any device other than a constant pressure push-
button station, a reversing edge must be connected.
CAUTION
Connect reversing device appropriate to installation.
Connection and installation of a reversing edge device is provided with the edge (see also Figure 20). Any such
device that uses a normally open contact may be connected to terminals 3 and 6 on the low voltage terminal
block (Figure 18). When the door comes in contact with an object during downward travel, the circuit will cause
the motor to reverse the door to the fully open position. In addition, there is a cut-off limit switch (advanced
close limit switch) that will de-activate the reversing edge during the last few inches of the door's downward
travel.
Figure 20 Reversing Edge
5.3. CLUTCH ADJUSTMENT
1. Adjustment of clutch is done by rotating the nut located at the end of the input shaft where the pulley
7" is located (Figure 21).
2. Rotate the nut counter-clockwise until there is insufficient tension to permit clutch to drive door.
3. Rotate the nut clockwise gradually until there is just enough tension on clutch to permit operator to move
door smoothly, but to allow clutch to slip if door is obstructed.
4. When clutch is properly adjusted it should be possible to stop door by hand during travel.
WARNING
THE FRICTION CLUTCH IS DESIGNED TO PROTECT VEHICLES AND DOOR HARDWARE AGAINST
DAMAGE. IT IS NOT INTENDED TO PROTECT PEOPLE. ALL DOORS SERVING PERSONNEL ARE
TO BE FITTED WITH AN APPROPRIATE REVERSING DEVICE OR REVERSING EDGE TO PREVENT
INJURY OR DEATH.
We strongly recommend the use of an automatic reversing device. Several types are available as
accessories. Consult your dealer for a recommendation
Reversing edge
location

17
Figure 21 Clutch adjustment
5.4. ADJUSTMENT AND MANUAL OPERATION OF OPERA-MH OPERATOR
Opera-MH (designed with Hoist-a-Matic ® self engaging hoist system)
The Opera-MH operator is equipped with an automatic emergency chain hoist disconnect mechanism to
operate the door manually, no floor disconnect is required.
In one simple step
-Control circuit interrupted.
-Coupling and hoist engaged.
-Manual operations.
are successively completed by pulling the hand chain in the desired direction:
1. Simply pull on the hand chain in the desired direction. The first foot pulled will engage the hoist
mechanism and open the electrical circuit.
2. Continue the traction movement to move the door. If it doesn’t run in the desired direction, repeat actions
1 and 2 by pulling the chain in the other direction (See Figure 22).
3. The automatic hoist engagement system is adjusted in the factory. It may require adjustment in the field.
Adjustment is necessary if no door movement occurs after two fetes of pulled hand chain. Turn the
adjusting nut clockwise (see figure 23) by ¼ turn until the hoist engages after pulling one foot of chain. If
the nut is too tight, the manual torque on the chain will be too heavy.
4. Return to the standard electrical operation.
IMPORTANT: To return to electrical operation merely pull slightly on the opposite direction of the chain
WARNING
DO NOT ATTEMPT TO DISENGAGE THE OPERATOR WHILE OPERATOR IS RUNNING. DO NOT
ATTEMPT TO MANUALLY FORCE A MALFUNCTIONING DOOR TO OPEN OR CLOSE. THIS IS AN
EMERGENCY DEVICE AND IS NOT DESIGNED TO OPERATE A DOOR WITH SERIOUS MECHANICAL
PROBLEMS.
Figure 22 Operating chain to open and
close door
Figure 23 Manual operation system adjustment
Rotate the
nut to adjust
the clutch Increase torque
Decrease
torque
Return in
electrical
operation
position
Engagement
Operation

18
5.5. MANUAL OPERATION OF OPERA-MJ
1- Pull on the disconnect chain until feel a resistance.
2- Engage the chain in the chain keeper. The door is disconnected from the electrical motor and ready
to be manually operated.
3- Just make free the disconnect chain from the chain keeper to ‘’reconnect’’ the operator and return the
standard electrical operation.
5.6. OPERATOR START-UP AND TESTING GUIDE
This guide is a procedure you can follow to test every feature of your door operator.
If a 3 button push-button station is wired to the operator, disconnect it and then place a normally-closed contact
between terminals 2 and 3 to simulate a "Stop" push-button (use a spare limit switch or any such device).
Interrupting the power between these terminals will stop the operator.
Using a small wire jumper, momentarily jump (short-circuit) the following terminals:
A. Momentarily jump terminals 3 and 4.
The door will open instantly. Allow it open completely.
B. Momentarily jump terminals 3 and 5.
The door will close instantly. Allow it close completely.
C. Momentarily jump terminals 7 and 8.
The door will open instantly. Allow it to open completely.
D. Momentarily jump terminals 7 and 8.
The door will close instantly. While closing, go to step E.
E. Momentarily jump terminals 7 and 8 again.
The door will reverse to open. Allow it to open completely.
F. Momentarily jump terminals 7 and 8.
The door will close. While closing, go to step G.
G. Momentarily jump terminals 3 and 6.
The door will reverse to open. Allow it to open completely.
H. Momentarily jump terminals 7 and 8 again.
The door will close. Allow it to close completely.
I. Momentarily jump terminals 3 and 6.
The door should remain still.
This procedure can be repeated using the radio-control terminal strip located on the outside of the control box
by using terminals "24VAC" and "CONTACT" instead of terminals 7 and 8.
6. TROUBLE-SHOOTING GUIDE
All operators are thoroughly tested and adjusted before shipping. In most cases, it is after installation and hook-
up to external devices that a problem will arise.
If after connecting external devices to the operator, you encounter problems, the trouble often lies in the
external devices or in the wiring leading to the external devices. Verify all external wiring making certain that
there are no wires pinched anywhere shorting to ground and that there are no voltages being sent into the
control circuit. The operator functions ONLY with dry contacts: all voltages necessary for proper functioning are
generated by the operator transformer.
The following trouble-shooting guide (TABLE 3) will help you identify the source of the problem given a
particular symptom.

19
TABLE 3 TROUBLE-SHOOTING GUIDE
SYMPTOM PROBABLE CAUSE SUGGESTED ACTION
Machine is in disconnect position
(Opera–MJ). Make free the disconnect chain from opera –MJ chain keeper.
Chain hoist is engaged which
activated the disconnect switch
(Opera-MH)
Pull on chain slightly in each direction in order to
disengage the chain hoist and return the operator to
electrical operation. Check switch otherwise
Motor has overheated and the
internal thermostat has tripped.
Allow the operator to cool for 20 minutes before using it
again. Is the door unbalanced? Has the door been
operated more than 16 cycles/hour?
Circuit breaker tripped (if used). Reset circuit breaker.
Fuse is blown.
Replace fuse. If control circuit fuse keeps blowing:
Disconnect all external devices. Leave power terminals
connected. (Remove power to power terminals). Run the
operator artificially by using jumpers and shorting out the
appropriate terminals as indicated in the trouble-shooting
technique. Then reconnect the various external devices
one by one until you find the one causing the short to
ground.
OR: If you have an ohm-meter, use it to check all
incoming wires for continuity to ground. The meter
should read infinity in all instances. If there is conduction
between any control circuit wire and ground, this
indicates a leak to ground and this is why the control
circuit fuse blows when power is applied.
In some cases, the trouble is intermittent: i.e. the fuse
only blows at certain times. This problem is more difficult
to detect, but again: disconnect all wires going to
external devices, and run the operator: if the fuse does
not blow, this indicates that the trouble resides outside
the operator.
Transformer defective. Replace.
Defective "stop" push-button. Replace.
Loose connection in one of the
push-buttons. Verify, tighten or replace
Defective "open" or "close" push-
button. Replace.
Door will not respond
to "open" or "close"
push-buttons.
Disconnect lever is "disengaged"
position. Pull lever to "engaged" position.
Defective "open" push-button Replace
Defective “open” limit switch. Replace
Door will not respond
to "open" command,
but will respond to
"close" command. Loose wire on "open" push-
button, "open" limit switch or coil
of open relay. Verify, tighten or replace.
Defective "close" push-button. Replace.
Defective “close” limit switch Adjust
Door will not respond
to "close" command,
but will respond to
"open" command. Loose wire on close push-button,
close limit switch or coil of close
relay. Verify, tighten or replace.
"close" relay is defective. Verify and replace.
Door closes by itself
and operator does
not shut-off at the
end of closing travel. “close” limit switch defective Verify and replace.
Door opens by itself
and operator does
not shut-off at the
end of opening travel.
"open" relay is defective. Verify and replace.
Sensing edge does
not reverse door. Pneumatic hose broken,
electrical wiring not connected. Contact a qualified installer.
Reversing devices
connected between
terminals 3 and 6 will
reverse the door, but
will also open it
instead of being de-
activated when the
door is closed.
When the door is almost fully
closed, the "advanced close" limit
switch must be activated: this
disables the reversing devices
from further acting on the
reversing relay.
The "advanced closed" limit switch needs to be adjusted
just slightly ahead of the end of travel "closed" limit
switch.

20
SYMPTOM PROBABLE CAUSE SUGGESTED ACTION
When door closes it
reverses to fully
open.
“advanced close” limit switch is not
sufficiently advanced. Reversing
edge is not disabled causing door
to reverse.
The "advanced close" limit switch needs to be adjusted
just slightly ahead of the end of travel "closed" limit
switch.
Radio-control does
not function or
hesitates for 10
seconds before
working.
It is normal for a radio receiver to
take up to 10 seconds to "warm-up"
before being fully operational.
Therefore, when applying power for
the first time, the radio-control will
take 10 seconds before becoming
fully operational.
Check protocol code pins of the transmitter and receiver:
they must be the same. Press on the transmitter and
listen to the receiver: you should hear a faint click. The
transmitter battery may be dead or your receiver may
need servicing. To test for radio-control function, short
out momentarily terminals 7 and 8 on the terminal strip.
Operator should function normally. Have the radio-
control verified: the mini-relay inside the receiver may be
defective.
Motor hums, starts
when spun. Capacitor defective. Replace
Defective limit switch. Operate limit switch manually while door is moving and
operate switch.
Limit cams are not adjusted. Verify and adjust.
Limit drive chain broken. Replace.
Loose sprocket on limit shaft. Tighten set screw.
Motor fails to shut
off at fully closed or
opened positions.
Limit screw does not rotate. Verify and replace accordingly.
Sprocket key is missing. Replace
Drive chain is broken. Replace
Motor turns but
door does not
move. Clutch is slipping. Adjust clutch tension.
Motor hums or
does not run. Door locked or jammed. Verify manual operation of door.
Limit cam retainer not engaging
slots in limit cams Be sure retainer is in slots of BOTH cams.
Limit switches do
not hold their
setting. Limit cams are binding on screw
threads which allows them to jump
position on retainer.
Lubricate screw threads. Limit cams should turn freely.
Radio-control
opens and reverses
the door, but when
the door is fully
opened, will close
the door a little and
bounce back to the
open position
again. Door cannot
be closed except by
the "close" push-
button.
The "advanced open" limit switch is
insufficiently advanced from the full
"open" limit switch. The contact of
the radio-control receiver is
maintained for 1.5 seconds when a
command is issued by the radio
transmitter. Therefore, when the
door is fully opened, and a pulse is
sent from the transmitter, the
receiver maintains the contact
closed for 1.5 seconds. If the door
has closed and the "advanced
open" limit switch has returned to
it's normal state, the reversing relay
will be activated, and the door
bounces back to the open position.
Adjust the "advanced open" limit switch.
Instructions applied only to Opera-MJ operators with a solenoid brake
Door locked or jammed. Verify manual operation of door.
Motor hums or
does not run. Brake does not release. Check wires to brake solenoid. Verify and adjust
brake tension.
Door opens fine but
when press close,
motor hums or
blow the main
breaker.
Brake sloneloid not releasing.
Check 24V relay activating the brake solenoid on
closing side.
Replace.
Door closes fine
but when press
open, motor hums
or blow the main
breaker.
Brake sloneloid not releasing.
Check 24V relay activating the brake solenoid on
opening side.
Replace