Page 1
INSTALLATION AND
OWNER’S MANUAL
M50JF & M50JH
M-SERIES JACKSHAFT COMMERCIAL
VEHICULAR DOOR OPERATORS
As of date of manufacture,
meets all ANSI/UL 325
Safety Requirements for
Vehicular door operators
Serial #:
Date Installed:
Your Dealer:
100771
READ THIS MANUAL
CAREFULLY BEFORE
INSTALLATION OR USE.
SAVE THIS MANUAL!
Page 2
TABLE OF CONTENTS
Jackshaft Operator Applications..................................................................................3
Preparation ....................................................................................................................4
Figure 1 - Component Identification Pictorial..............................................................4
Important Installation Warnings (Things To Do Before & During Installation) ......... 5
Table 1 - Component Identification Listing..................................................................5
Installation Instructions .............................................................................................6-7
Figure 2 - Operator Footprint........................................................................................6
Figure 3 - Release/Hand Chain Wall Bracket Installation ...........................................7
Figure 4 - Mounting Positions ......................................................................................7
Figure 5 - Operator Dimensions - Model M50JF..........................................................8
Figure 5A - Operator Dimensions - Model M50JH.......................................................9
Setting The Limits .......................................................................................................10
Figure 6 - Limit Adjustment ........................................................................................10
Electrical Wiring Instructions .....................................................................................11
Figure 7 - Pneumatic Door Edge Installation.............................................................12
Figure 8 - Field Wiring.................................................................................................12
Operation and Adjustment Instructions ...............................................................13-17
Important Safety Instructions for Owner ...................................................................13
Wiring Terms ...............................................................................................................14
Clutch Adjustment.......................................................................................................15
Brake Adjustment........................................................................................................16
Testing .........................................................................................................................16
Maintenance ................................................................................................................17
Wiring Diagram............................................................................................................18
Wiring Schematic ........................................................................................................19
Warranty.......................................................................................................................20
2
READ THESE STATEMENTS CAREFULLY AND FOLLOW THE
The Warning and Caution boxes throughout this manual are there to protect you and
your equipment. Pay close attention to these boxes as you follow the manual.
WARNING
Indicates a MECHANICAL
hazard of INJURY OR
DEATH. Gives instructions
to avoid the hazard.
INSTRUCTIONS CLOSELY.
CAUTION
Indicates a MECHANICAL hazard
of DAMAGE to your operator or
equipment. Gives instructions to
avoid the hazard.
WARNING
Indicates an ELECTRICAL
hazard of INJURY OR
DEATH. Gives instructions
to avoid the hazard.
CAUTION
Indicates an ELECTRICAL hazard
of DAMAGE to your operator or
equipment. Gives instructions to
avoid the hazard.
Page 3
3
PRODUCT FEATURES
The purpose of this booklet is to provide assembly,
installation and operation information concerning Allstar
Model M50JF & M50JH Commercial Vehicular Garage
Door Operators and related Accessory Products.
NOTICE
IT IS IMPORTANT THAT THIS INSTRUCTION
MANUAL BE READ AND UNDERSTOOD
COMPLETELY BEFORE INSTALLATION OR
OPERATION IS ATTEMPTED. IT IS
INTENDED THAT THE INSTALLATION OF
THIS UNIT WILL BE DONE ONLY BY
PERSONS TRAINED AND QUALIFIED IN
THE INSTALLATION, ADJUSTMENT AND
SERVICE OF COMMERCIAL OVERHEAD
DOORS AND DOOR OPERATORS AND BY
QUALIFIED ELECTRICIANS.
NOTICE
THE IMPORTANT SAFEGUARDS AND
INSTRUCTIONS IN THIS MANUAL CANNOT
COVER ALL POSSIBLE CONDITIONS AND
SITUATIONS WHICH MAY OCCUR DURING
ITS USE. IT MUST BE UNDERSTOOD THAT
COMMON SENSE AND CAUTION MUST BE
EXERCISED BY THE PERSON(S) INSTAL-
LING, MAINTAINING AND OPERATING THE
EQUIPMENT DESCRIBED HEREIN. DO NOT
USE THIS EQUIPMENT FOR ANY OTHER
THAN ITS INTENDED
PURPOSE - OPERATING OVERHEAD
COMMERCIAL VEHICULAR GARAGE
DOORS.
MODEL M50JF & M50JH OPERATOR APPLICATIONS:
Jackshaft operators are intended for commercial and
industrial use to raise or lower sectional overhead
doors by chain coupling or direct coupling to the door
shaft. Jackshaft operators are suitable where all or
part of the door remains in a vertical position when
fully open such as doors with at least 18 inches of lift
clearance or full vertical lift doors. M Series Jackshaft
operators may also be used with certain roll up
service doors and grills when appropriately
sprocketed (consult factory).
A jackhaft operator DOES NOT LOCK THE DOOR
IN ITS CLOSED POSITION. However, because the
cross-header shaft is prevented by the operator from
turning, the torsion springs provide no assistance in
lifting the door should an attempt be made to raise it
manually.
The M Series jackshaft operators are used in the
following applications:
- Intermittent Duty, Limited Cycle Commercial
installations only
- Rate of operation shall not exceed 10 cycles of
opening and closing per hour, maximum 60
cycles per day.
- Indoor Use Only
- Up to 14 foot high doors with a maximum area
of 196 square feet, maximum area slightly
higher for lighter doors - consult factory
- Use with foam/pneumatic reversing door edge
or photoelectric device - REQUIRED where the
3-button station is out of sight of the door, or
any other automatic, remote or manual control
is used to activate the door
STANDARD FEATURES:
Limit Switches: Driven limit switches, easily adjusted
over a wide range. The motor may be removed without
affecting the limit switch adjustments
Manual Release: Permits manual operation of the
door in the event of a power failure. The Model M50JH is
equipped with a chain hoist to aid in manual operation.
Control Circuit: Standard three button open, close
and stop. 24 Volts AC.
Connections For Auxiliary Entrapment Protection Devices:
door edge components or a photoelectric beam (across
the opening) device.
Use with foam or pneumatic reversing
Constant Contact To Close: Feature can be activat-
ed by simply removing 2 wires from the terminal strip.
Momentary Contact To Close: Standard operation.
OPTIONAL FEATURES:
Digital Radio Controls: Open, Close and Stop
operation. Radio units are available to control up to 27
doors from one transmitter
Digital Timer to Close: Adjustable from 0 to 17
minutes in one second intervals.
Keyless Entry System: Connection terminals
provided for hard wired or wireless keyless entry
systems.
Page 4
PREPARATION
WARNING
ELECTRIC DOOR OPENERS ARE DESIGNED
FOR DOORS IN GOOD WORKING CONDITION,
PROPERLY COUNTERBALANCED AND
PROPERLY ADJUSTED IN ACCORDANCE
WITH THE DOOR MANUFACTURER'S
INSTALLATION INSTRUCTIONS.
Before starting the installation of the operator, the door must be in
good working condition and properly counterbalanced. Inspect
the door and track for loose or missing hardware. Test the door
manually for balance and ease of operation. Lubricate door hinges
and rollers. If necessary, employ a qualified technician to adjust
the springs for proper counterbalance of the door.
Stops should be installed at the top end of each track to prevent
the possibility of the door rollers moving beyond the ends of the
track.
If the cross header shaft is made from hollow tubing rather than
solid rod, it is recommended that it be plugged with a short length
of solid bar for a more secure installation of the shaft sprocket or
flange coupler.
Before removing the operator powerhead from the shipping
4
carton, inspect the nameplate on the cover of the operator
control box to verify that it is the correct model for the
intended application and that the voltage and phase are in
accordance with electrical power provided at the job site. If
the operator was ordered with the optional chain hoist,
Model M50JH, see that it is so equipped. A chain hoist
CANNOT be added in the field.
Warning: Rope off the area to keep personnel and
vehicles clear of the door and floor space in the vicinity
of the operator during the installation.
WARNING
SPRINGS ARE SUBJECT TO VERY
HIGH FORCES AT ALL TIMES AND
ADJUSTMENTS MUST BE MADE
ONLY BY A QUALIFIED
PROFESSIONAL DOOR INSTALLER.
WARNING
REMOVE OR DISABLE ANY LOCKING
DEVICES FROM DOOR AND REMOVE
ALL ROPES
COMPONENT IDENTIFICATION
107170-2
Page 5
5
WARNING
IMPORTANT INSTALLATION NOTES
TO REDUCE THE RISK OF SEVERE INJURY
OR DEATH: READ AND FOLLOW ALL
INSTALLATION INSTRUCTIONS!
♦ Install only on a properly balanced garage
door. An improperly balanced door could
cause severe injury. Have a qualified service
person make repairs to cables, spring
assemblies and other hardware before
installing the opener.
♦ Remove all ropes and remove or make
inoperative all locks (unless mechanically
and/or electrically interlocked to the power
unit) that are connected to the garage door
before installing the opener.
♦ Lightweight doors (fiberglass, aluminum
etc.) must be reinforced to avoid door
damage. Check the door manufacturer’s
instruction manual for a bracing procedure
or the availability or a Reinforcement Kit.
♦ Allstar Model M50JF and M50JH are
Commercial Vehicular Door Operators and
as such are NOT recommended for
pedestrian traffic. In installations where it
is known that pedestrians will be nearby
ensure a pedestrian door is available for
entrance and exit to the building. In
addition YOU MUST install an auxiliary
entrapment protection device (reversing
door edge or photoelectric beam device) as
part of the compete operator system.
♦ Connect an auxiliary entrapment protection
device (reversing edge or photoelectric
device across the door opening). A device of
this type is STRONGLY ADVISED FOR
ALL commercial operator installations. An
auxiliary entrapment protection device is
REQUIRED when the three button control
station is out of sight of the door or any
other automatic or manual control is used.
♦ Install the opener at least 8 feet or more
above the floor.
♦ Do not connect the opener to the source of
power until instructed to do so.
♦ Locate the control station:
♦ a) within sight of the door and;
♦ b) at a minimum height of five feet above
♦ the floor and;
♦ c) away from all moving parts of the
♦ door.
♦ Do not overtighten the clutch adjustment to
compensate for a poorly working door.
♦ Securely attach any WARNING signs or
placards to either the door or above the
control station as directed (see page 11).
♦ After installing the opener, all safety
features must be tested for proper operation
(see page 16).
COMPONENT IDENTIFICATION LISTING
ITEM # PART# DESCRIPTION QUAN.
1 Operator Power Head 1
2 E031 3 Button Station 1
3 X062 30 Tooth Sprocket, 1” Bore, 1/4 Key 1
4 X061 20 Tooth Sprocket, 1” Bore, 1/4 key 1
5 105193 Release/Hand Chain Wall Bracket 1
—— AR - As Required
ITEM # PART# DESCRIPTION QUAN
6 100413 1/4” Square Key 2
7 F119 5/16-18 x 1 Square Head Set Screw 4
8 X249 Release Chain AR
9 100315 #3 Hand Chain - Precut to 26 Ft. 1
10 X239 Drive Chain to Door Shaft, 4 Ft. 1
Page 6
INSTALLATION INSTRUCTIONS
SPRINGS, PULLEYS, CABLES AND MOUNTING HARDWARE USED TO
BALANCE YOUR GARAGE DOOR ARE UNDER EXTREME TENSION AT ALL
TIMES AND CAN CAUSE SEVERE INJURY OR DEATH IF DISTURBED.
WARNING
6
DO NOT ATTEMPT ADJUSTMENT.
Figure 4, page 7 illustrates several positions suitable for
mounting the operator; right hand or left hand, either wall mount
or ceiling mount.
CHAIN COUPLING MOUNTING
Refer to Figure 2 (at right), Figure 1, page 4 and Figures 5 and
5A, pages 8 and 9 for component identification and the operator
mounting slot locations. Place the sprockets [ 3 ] and [ 4 ] on the
chosen side of the torsion shaft of the door and on the
corresponding end of the output shaft of the operator. The
sprockets should be kept as close as possible to the bearings.
Fasten the connecting link to each end of the door chain and loop
the chain over the sprocket [ 3 ] on the torsion shaft. Temporarily
suspend the operator in its mounting position using the chain
over the sprocket [ 4 ] at one end of the jackshaft and a rope or
chain at the mid point (to support the operator weight). With the
chain tight and straight and the jackshaft parallel with the torsion
shaft, trace the mounting slot on the mounting surface then
lower the operator to the floor.
IT IS ESSENTIAL THAT THE SURFACE
SUPPORTING THE OPERATOR BE RIGID
AND SECURE. FAILURE TO PROVIDE A FIRM
MOUNTING SURFACE WILL RESULT IN
DAMAGE TO THE DOOR TORSION SHAFT
AND THE PREMATURE FAILURE OF THE
OPERATOR.
through the wall, then use lag bolts to fasten the operator to the
mounting surface. Locate the four holes within the tracings of
the slots made in the previous step at the positions which will
allow for adjust-ment of the chain tension. After drilling the
mounting holes and installing lag shields, if necessary, bolt the
operator to the mounting surface but do not completely tighten
the bolts at this time. Check the alignment of the sprockets,
adjust their positions on the shafts if necessary and tighten the
set screws securely on both sprockets. pulling downward on the
operator to remove slack from the chain, tighten the four
mounting bolts.
Inspect the installation. There should be no slack in the chain
but neither should it be under severe tension which might
shorten the life of the bearings. If there is any flexibility in the
system due to construction of the surface supporting the
operator or noticeable deflection of the door shaft, it is advisable
to install a shaft support between the operator jackshaft and the
door shaft to prevent the loss of limit settings due to the
possibility of the chain jumping over the sprocket teeth. Shaft
supports are available from the factory.
BEFORE PROCEEDING WITH THE
OPERATOR INSTALLATION AND SETTINGS,
MAKE A FINAL CHECK FOR TIGHTNESS OF
ALL MOUNTING HARDWARE AND SET
SCREWS.
If the construction permits, the operator should be mounted with
3/8 inch diameter bolts through the wall. If it is not feasible to go
Proceed to “Chain Hoist and Floor Disconnect Installation”.
107864
Figure 2
Page 7
7
INSTALLATION INSTRUCTIONS
CHAIN HOIST AND FLOOR DISCONNECT
INSTALLATION
If the operator is furnished with a chain hoist (Model M50JH), pass
the hand chain over the chain wheel and through the chain guides
on the operator clutch shaft (opposite end from the large pulley).
Fasten the ends of the chain together by opening and re-closing one
link using two pairs of pliers. If the chain is too long (standard
length for 16 foot high doors and below is 26 feet total length of
chain), shorten it to the desired length using the method described
above and discard the unused portion.
Fasten the chain hoist holding bracket furnished with the operator
to the wall approximately four feet from the floor. This bracket is
also used to hold in place the release chain for both the chain hoist
equipped units (M50JH) and floor disconnect models (M50JF).
Figure 3
107174
Figure 4
Page 8
FIGURE 5 - OPERATOR DIMENSIONS - MODEL M50JF
8
100769
Page 9
9
FIGURE 5A - OPERATOR DIMENSIONS - MODEL M50JH
100771
Page 10
INSTALLATION INSTRUCTIONS
10
WARNING
TO AVOID RISK OF ENTRAPMENT AND
POSSIBLE DAMAGE TO THE DOOR AND
OPERATOR THE LIMITS MUST BE ADJUSTED
BEFORE APPLYING POWER TO THE
OPERATOR.
SETTING THE LIMIT SWITCHES
1) With the cover open on the electrical enclosure, reference
Figure 6 below. There are four (4) switches (A, B, C, and D)
mounted to the ‘V’ bracket (H). The limit switches are
mounted in a fixed position to the underside of the ‘V’ bracket;
with the Close Limit switch (B) on the right and the Open
Limit switch (D) on the left. The Reverse Cutout switch (A)
and the Single Button Selector switch (C, also could be Timer
Engage switch depending on the model) are mounted to the top
side of the ‘V’ bracket as shown. The switches are activated by
the two limit nuts (E & G) on the threaded shaft which move
laterally along the shaft as the operator opens and closes the
door. When a limit nut nears the end of the shaft it activates a
set of switches, upper switch first then the lower fixed limit
switch.
2) Depress the Limit Nut Retention Plate (F) so it disengages
from the slots in the limit nuts and move the Limit nuts to the
center of the threaded shaft.
3) Manually raise the door to a nearly open position.
4) Depress the limit nut retaining bracket (F) so it
disengages from the slots in the limit nuts. Turn the OPEN
limit nut (E) on the shaft until it engages both the Single
Button Selector switch (C) and the Open Limit Switch (D).
You will need to listen for two audible clicks. Release the
retaining bracket and be sure that it engages in slots of both
limit nuts.
5) Manually lower the door to the fully closed position and
repeat Step #3 with the Close Limit nut (G) and Reverse
Cutout switch (A) and the Close Limit switch (B).
6) Manually move the door to a half open position. With
the door in a mid position there will be time to stop the door
if something or someone were in the door path when initially
starting the door.
7) A final limit adjustment will be necessary after the
connection of the power supply in order to ensure the door
stops at the proper Open and Close positions.
8) Adjustment of the Reverse Cutout switch (A) or Single
Button Selector switch (C) is done at the factory and should
not be needed in the field. Moving the Reverse Cutout
switch closer to the center of the box will increase the point
where the reversing feature cuts out (to allow for irregularity
in the floor, etc.). The reverse cutout point is factory
adjusted to approx. 4 inches off the floor.
Figure 6 - Limit Assembly
A - REVERSE CUTOUT SWITCH
(LS4, ADJUSTABLE)
B - CLOSE LIMIT SWITCH
(LS2, FIXED POSITION)
C - SINGLE BUTTON SELECTOR or
TIMER ENGAGE SWITCH
(LS3, ADJUSTABLE)
D - OPEN LIMIT SWITCH
(LS1, FIXED POSITION)
E - OPEN LIMIT NUT
F - LIMIT NUT RETAINING BRCKT
G - CLOSE LIMIT NUT
H - “V” BRACKET
C
E
F
G
A
D
B
H
Page 11
11
ELECTRICAL WIRING INSTRUCTIONS
WARNING
TO PREVENT THE RISK OF PERSONAL INJURY
OR DEATH :
• DISCONNECT POWER AT THE FUSE BOX
BEFORE PROCEEDING.
• ELECTRICAL CONNECTIONS MUST BE MADE
BY A QUALIFIED INDIVIDUAL.
• OBSERVE LOCAL ELECTRICAL CODES WHEN
WIRING THE OPERATOR.
WARNING: Allstar's M Series operators have been designed
and constructed for use with 115 Volts AC single phase. Check
the operator nameplate label on the control box cover for the
proper voltage and phase. The application of an improper
input voltage or phase will result in catastrophic failure to the
internal electrical components.
Observe local electrical codes when wiring the operator.
When hard wiring, observe state and local electrical codes. A
wiring diagram is attached to the inside of the control box cover.
Connect the appropriate voltage and phase power leads to the
appropriate terminals as per the wiring diagram and connect a
ground wire to the grounding screw.
The wiring diagram attached inside the cover of the control box
details all of the field wiring terminal connections for the operator.
Always connect the wires to the push-button controls and auxiliary
devices exactly as shown.
Warning: Control voltage of the operator is 24 volts AC,
Class 2. Do not run the power leads and control circuit wiring
in the same electrical conduit.
WARNING
RISK OF ENTRAPMENT THAT MAY
RESULT IN SERIOUS PERSONAL INJURY OR
DEATH. DISCONNECT POWER TO THE
OPENER BEFORE AND DURING
INSTALLATION OF AN ACCESSORY
REVERSING DOOR EDGE OR
PHOTOELECTRIC DEVICE. DO NOT
RECONNECT POWER TO OPENER UNTIL
INSTRUCTED TO DO SO. ENSURE DOORWAY
IS CLEAR BEFORE STARTING TESTING OF
UNIT.
Note: M Series model operators are pre-wired for door
reversing edge components. To comply with code
requirements, the door reversing edge components must be
installed and wired to the operator. Refer to Figure 7 and 8
for Edge component wiring and installation.
Operators which are equipped with a reversing edge circuit may
have one or more additional means of control which should be
wired in accordance with the diagram supplied in the operator.
To add a second three button station, refer to Figure 8.
Number 18 gauge wire or heavier must be used for wiring
the control stations and auxiliary control devices to the
operator. Smaller gauge wire will cause operational
problems, especially when multiple push-button stations are
used or during summer months.
WARNING
TO PREVENT THE RISK OF PERSONAL INJURY
AND/OR DAMAGE TO DOOR OR PROPERTY,
ONLY OPERATE DOOR CONTROL WHEN
DOOR IS IN CLEAR VIEW. IF CONTROL
STATION CANNOT BE LOCATED WHERE THE
DOOR IS VISIBLE OR IF ANY OTHER DEVICE IS
USED TO CONTROL THE DOOR AN AUXILIARY
ENTRAPMENT DEVICE (DOOR EDGE OR
PHOTOELECTRIC) MUST BE CONNECTED.
CAUTION
TO AVOID DAMAGE TO DOOR AND
OPERATOR ENSURE ALL DOOR LOCKS ARE
DISABLED.
USE AN INTERLOCK SWITCH IF A LOCK IS
REQUIRED TO RETAIN FUNCTIONALTY.
Page 12
PNEUMATIC DOOR EDGE INSTALLATION - FIELD WIRING
12
Figure 7
Figure 8
Page 13
13
OPERATION & ADJUSTMENT INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS FOR OWNER
TO REDUCE THE RISK OF SEVERE INJURY OR
WARNING
• Understand all of the operating features of your door control system at the time of its
installation. Your installing dealer will demonstrate them for you.
• NEVER let children operate or play with door controls. Keep the Remote Control away from
children.
• ALWAYS keep a moving door in sight and keep people and objects away from the door area
until the door is completely closed. NO ONE SHOULD CROSS THE PATH OF A MOVING
DOOR.
• TEST THE DOOR OPENER’S REVERSING FEATURE (where applicable) MONTHLY. The
door MUST reverse upon contact with a 4” high object on the floor. After adjusting the
force setting (clutch) or the limit of travel, ALWAYS RETEST the Opener. Failure to ADJUST
THE OPENER PROPERLY may result in SERIOUS INJURY OR DEATH.
• To protect the motor protector from tripping - Do not exceed 10 door cycles per hour.
DEATH: READ AND FOLLOW ALL INSTRUCTIONS!
• IMPORTANT: The hardware box contains a caution label which states: “This door is
operated by a light duty operator. To prevent the motor protector from tripping - Do not
exceed 10 door cycles per hour.” Permanently install this label adjacent to the door, near
the push button station, at the eye height of the average adult, approximately six feet above
the above the floor.
• DO NOT over adjust the force setting (clutch) to compensate for a poorly working door. See
page 16 for procedure to check the door operation and page 14 for proper clutch
adjustment.
• If possible, USE THE MANUAL RELEASE only when the door is closed. Use caution when
using the Release with the door open. WEAK OR BROKEN SPRINGS MAY ALLOW THE
DOOR TO CLOSE RAPIDLY, CAUSING SEVERE INJURY OR DEATH.
• KEEP THE GARAGE DOOR PROPERLY BALANCED. See the door owner's manual. An
improperly balanced door MAY CAUSE SEVERE INJURY OR DEATH. Have a QUALIFIED
SERVICE PERSON MAKE REPAIRS TO CABLES, SPRING ASSEMBLIES AND OTHER
HARDWARE.
• SAVE THIS INSTRUCTION MANUAL FOR END USER.
• Inspect and maintain your door system as described in this manual.
WARNING
WARNING
AVOID ELECTROCUTION:
DO NOT ROUTE LOW VOLTAGE WIRES IN
SAME CONDUIT AS HIGH VOLTAGE
WIRES. FOLLOW ALL LOCAL
ELECTRICAL CODES OR THE NATIONAL
ELECTRICAL CODE (NEC).
FAILURE TO TEST REVERSING SYSTEM
COULD RESULT IN DEATH OR SERIOUS
INJURY. TEST THIS SYSTEM ONCE A MONTH
.
Page 14
OPERATION & ADJUSTMENT INSTRUCTIONS
TO REDUCE THE RISK OF SEVERE INJURY OR
WARNING
DEATH: READ AND FOLLOW ALL INSTRUCTIONS!
14
NOTE: It is now necessary to turn on the power
in order to run the Opener to check for proper
operation and limit settings. Before doing so, ensure
that all mounting hardware are installed and properly
tightened, that all electrical connections are per local code
requirements, and that proper wiring practices have been
followed.
been removed from the door and that the doorway
is clear.
Also, double-check that all ropes have
WARNING
FAILURE TO TEST REVERSING SYSTEM
COULD RESULT IN DEATH OR SERIOUS
INJURY. TEST THIS SYSTEM ONCE A MONTH.
WIRING TERMS
MOMENTARY CONTACT: Button can be pushed and then released and door will keep moving or stop without
maintaining pressure on the button.
CONSTANT PRESSURE: Constant pressure is required on the button in order for continued door movement. When
the button is released the door will stop and possibly reverse to full open depending on wiring type.
DOOR EDGE/PHOTOELECTRIC INPUT: The operator wiring provides for input from an optional pneumatic or
electric door bottom edge or photoelectric device that will cause a closing door to stop and may reverse it to open
depending on the wiring type.
OPEN OVERRIDE: When the door is closing a momentary push of the OPEN button will reverse the door to open.
Page 15
15
OPERATION & ADJUSTMENT INSTRUCTIONS
CLUTCH ADJUSTMENT
WARNING
RISK OF ENTRAPMENT THAT MAY RESULT
IN SERIOUS PERSONAL INJURY OR DEATH.
DISCONNECT POWER TO THE OPENER
BEFORE SERVICING OR MAKING
ADJUSTMENTS. ENSURE DOORWAY IS
CLEAR BEFORE STARTING TESTING OF UNIT.
ALWAYS DISCONNECT POWER TO
OPERATOR BEFORE SERVICING OR MAKING
ADJUSTMENTS.
The clutch serves to protect the door, the electric operator and
other equipment from undue stress or damage caused by starting
forces and/or an obstruction to the door. It should be set no
tighter than is necessary to smoothly and consistently move the
door throughout its full range of travel. When properly set, it will
slip freely if the door should encounter an obstruction, and it
should be possible to stop the travel of the door by hand.
WARNING: Before adjustment remove power to the
operator.
To adjust the clutch, loosen the jamb nut, , and turn the adjusting
nut, as shown at right Make adjustments in 1/4 turn increments.
Always re-tighten the jamb nut before running the operator to
prevent clutch from changing its setting.
NEVER COMPRESS CLUTCH SPRING BEYOND
POINT LIMITED BY THE DESIGN OF THE
OPERATOR OR REPLACE IT WITH A
HEAVIER SPRING
Due to changing conditions of the door and normal wear, it may
be necessary to occasionally readjust the clutch to obtain
dependable operation.
WARNING: BEFORE DOING SO BE CERTAIN THAT
THE DOOR IS IN GOOD WORKING CONDITION,
PROPERLY COUNTERBALANCED AND THAT THE
CLUTCH IS NOT SLIPPING BECAUSE OF LOOSE OR
MISSING HARDWARE, BINDING IN THE TRACK,
RUBBING AGAINST THE DOOR STOPS OR DEFECTIVE
OR MISADJUSTED SPRINGS. ANY SERVICE
CAUTION
CAUTION
REQUIRED TO THE DOOR, DOOR SPRINGS OR DOOR
OPERATOR MUST BE PREFORMED BY A QUALIFIED
PROFESSIONAL DOOR INSTALLER.
The clutch pad will wear during normal operation and should be
replaced when it becomes difficult or impossible to sufficiently
tighten the clutch to obtain smooth operation of the door when it
is in good working condition. To replace the clutch pad, first
loosen the motor mounting bolts and remove the V-belt then the
clutch adjusting nuts, spring and clutch pulley. Check condition
of V-belt before reassembly and replace if required. After
reassembly, adjust clutch as described above.
107101
Figure 9
WARNING
IMPROPER ADJUSTMENT OF CLUTCH
SETTING COULD CAUSE ENTRAPMENT,
INJURY OR DEATH.
SET CLUTCH ADJUSTMENT FOR JUST
ENOUGH FORCE TO OPERATE THE DOOR
RELIABLY, BUT NO STRONGER. Contact a
service professional to correct any binding,
sticking or other door problems. DO NOT
OVER-ADJUST CLUTCH SETTING TO
COMPENSATE FOR A POORLY WORKING
DOOR.
Page 16
OPERATION AND ADJUSTMENT INSTRUCTIONS
BRAKE ADJUSTMENT
16
Figure 10
TESTING
Following installation, the operator MUST be tested and
respond correctly to all controls as specified on the wiring
diagram. KEEP personnel and equipment clear of the area
beneath the door when performing the tests. When testing the
3-button wall station, first observe that each button operates the
door in the direction indicated and that the STOP button
performs that function. With the door stopped at its full open
position, the OPEN button should be inoperative. This should
be verified and, likewise, the CLOSE button should be
inoperative with the door fully closed.
Certain operator control circuits use only a single button or a
two button control station and may be designed to function
differently than the more common three-button circuit
described above. Test the controls in accordance with the
description of operation as indicated on the wiring diagram.
Observe the door when traveling in each direction for
smoothness of operation. Test the setting of the clutch by
restraining the door by hand. The clutch should slip. Re-check
the limit settings. The door should close tightly at the floor
without excessive impact. Likewise, it should fully clear the
door opening without the carrier striking the stops on the rail.
The M Series operators are equipped with a reversing edge
circuit and to conform with code need to be connected to a
pneumatic edge or foam edge door components. To test it for
proper reversal, place an object beneath the leading edge of the
door. The door should instantly reverse when it comes into
contact with the object provided the height of the object
exceeds the cut out point built into the close limit switch
(approximately four inches).
CAUTION
DO NOT STAND UNDER DOOR
TO TEST REVERSING EDGE
USE A CORRUGATED BOX
OR OTHER SIMILAR OBJECT
If the operator is equipped with other means of control, such as
additional 3 button stations or radio controls, each of these
should be tested separately for proper operation.
To test the manual disconnect first move the door to the fully
closed position. Then disconnect the power to the operator.
Manual door operation mode should engage when the release
chain is pulled. The door can then be manually opened or
closed by physically moving the door (Model M50JF) or using
the hoist chain (Model M50JH). If it is difficult to engage and/
or the jackshaft to doorshaft chain appears to be under
compression, reset the CLOSE limit slightly to reduce the door
travel in the close direction.
WARNING
ALWAYS DISCONNECT POWER TO
THE OPERATOR BEFORE SERVICING,
CONNECTING ACCESSORY DEVICES
OR MAKING ADJUSTMENTS.
Page 17
17
MAINTENANCE
Normally, very little maintenance is required. A monthly visual
inspection must be made for loose or missing hardware and for
excessive slack in the V-Belt and jackshaft chain. The clutch
must be tested periodically and adjustments made if necessary
(see page 15). The brake is adjusted at the factory and will need
periodic adjustment for wear. When adjustment becomes
necessary see Figure 10 on page 16 for the adjustment
procedure.
Test the reversing edge circuit at least once a month by
permitting the door to contact an obstruction while closing.
CAUTION
DO NOT STAND UNDER DOOR TO TEST REVERSING
EDGE - USE A CORRUGATED BOX
OR OTHER SIMILAR OBJECT
Lubrication of the operator is not required. It is important, for
trouble free service from the operator, that the door be kept free
from binding, properly counter balanced and periodically
lubricated. An annual inspection of the door by a qualified
overhead door professional is recommended.
Warning: Repairs and adjustments to the door and operator
should be performed only by someone qualified to service
commercial overhead doors and operators.
Page 18
WIRING DIAGRAM
LS1
OPEN LIMIT
LS3
LS4
REVERSE
CUTOUT
LS2
CLOSE LIMIT
18
Page 19
19
WIRING SCHEMATIC
Page 20
20
Manufacturer’s Limited Warranty
Linear LLC warrants its Allstar brand commercial door operators to be free from defect in material and workmanship for a period of two (2)
years from the date of purchase. To obtain service contact your dealer.
To obtain service under this warranty the buyer must obtain authorization instructions for the return of any goods from Linear before
returning the goods. The goods must be returned with complete identification, with copy of proof-of-purchase, freight prepaid and in
accordance with Linear’s instructions or they will not be accepted. In no event will Linear be responsible for goods returned without proper
authorization or identification.
Goods returned to Linear for warranty repair within the warranty period, which upon receipt by Linear are confirmed to be defective and
covered by this limited warranty, will be repaired or replaced at Linear’s sole option, at no cost and returned pre-paid. Defective parts will
be repaired or replaced with new or factory rebuilt parts at Linear’s sole option.
This limited warranty does not cover non-defect damage, damage caused by unreasonable use, damage caused by improper installation or
care, vandalism or lightning, fire or excessive heat, flood or other acts of God (including, but not limited to misuse, abuse or alterations,
failure to provide reasonable and necessary maintenance), labor charges for dismantling or reinstalling a repaired or replaced unit, or
replacement batteries.
These warranties are in lieu of all other warranties, either expressed or implied. All implied warranties of merchantability and/or fitness for a
particular purpose are hereby disclaimed and excluded. Under no circumstances shall Linear be liable for consequential, incidental or special
damages arising in connection with the use or inability to use this product. In no event shall Linear’s liability for breach of warranty, breach
of contract, negligence or strict liability exceed the cost of the product covered hereby. No person is authorized to assume for Linear any
other liability in connection with the sale of this product.
This warranty gives you specific legal rights. You may also have other rights which vary from state to state. Warranty effective after
October 1st, 2007.
For Information:
877-441-9300 800-421-1587 www.allstarcorp.com
This Door Operator is built in the USA and
P/N 190-108103 Rev. F August 2007 Copyright © 2007 Linear LLC
complies with all requirements of
ANSI/UL Standard 325.
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