OSCO Model T Einrichtungshandbuch

Model T

Medium-Duty Commercial

Drawbar Door Operator

Safety, Installation, and

Service Manual

OSCO requires the use of an electric edge or photoelectric

control for pedestrian protection on all automatic or

remotely controlled door operators.

OPERATOR SPECIALTY CO., INC.

P.O. BOX 128, CASNOVIA, MI 49318

11-14-97

032398

OSCO Model T Instructions Page 2

11-14-97

Safety Information and Warnings

Read all of the following before beginning to install the

Model T operator:

1. Read the green “SAFETY INSTRUCTIONS” sheet

provided with the operator information. It’s ex-

tremely important that the safety warnings and

precautions be understood and followed by the

installing contractor. Leave all instructions with

the end user.

2. Do not attempt to operate the machine unless it is

completely installed as instructed.

3. The installation must be made in a neat and

professional manner, observing all rules of good

workmanship and personal safety.

4. All electrical connections to the power supply must

be made by a qualified and licensed electrician.

All local and national codes must be observed.

5. A power-disconnect switch should be located

within sight of the operator so that primary power

can be turned off when necessary.

6. Do not remove the operator cover unless you are

qualified to service this equipment and the power

is turned off. There are no user-serviceable parts

inside.

7. Install enclosed warning signs so as to be visible

to all persons passing near or through the door.

8. Operate the door only when it is in full view.

9. Do not permit children to play on or around the

door.

10. Never reach through or around a door frame to

operate the door controls.

11. Install all recommended safety equipment.

Features

Mechanical

• 1/2 HP instant-reverse motor with capacitor and automatic

reset thermal overload

• Adjustable friction clutch

• Dependable roller chain drive

• Efficient V-belt reduction

• Emergency disconnect for manual operation

• Double-angle track—1 1/2” X 1 1/2” X 1/8”

• Door speed 0.8–0.9 feet per second

• 3” Headroom required above high rise of door

• Designed to operate doors up to 14” high

Electrical

• Easily adjustable rotary limit switches

• 24V control circuit

• External terminals for radio control, electric edge, photo-

electric device, or pushbutton station

• 3-Button control — OPEN–CLOSE–STOP

• Adapted for pull cord, radio control, or single button

control

CAUTION

OSCO STRONGLY RECOMMENDS USE OF AN

ELECTRIC EDGE OR PHOTOELECTRIC CONTROL

FOR PEDESTRIAN PROTECTION ON ALL AUTO-

MATIC OR REMOTELY CONTROLLED DOOR OP-

ERATORS.

Children should never be allowed to play on, near, or

around a motorized door. Any control devices should be

placed so as to be inaccessible to small children.

The door should never be operated unless it is in visual

sight of the user.

Warning signs must be installed on or near the door.

A pushbutton or keyswitch should not be installed within

reach of the door or operator.

LIMITEDONE-YEARWARRANTY

This electric operator is warranted for a period of one (1) full year from date of installation against defects in materials or

workmanship. Any part, parts, or complete unit which fails because of such defects within this period shall, at the

manufacturer’s option, be repaired or replaced at no charge. The manufacturer will not be responsible for transportation

and/or field service charges.

This warranty is in lieu of all other warranties, expressed or implied, and shall be considered void if visible evidence

implies recommended installation procedures and maintenance instructions were not followed.

OSCO Model T Instructions Page 3

11-14-97

Installation Instructions

Step 1: Operator Assembly

Secure the rails to the power unit using the 5/16” bolts

provided. Then slide the traveller onto the rails, making

sure that the chain connection is away from the power

unit and toward the front.

Attach the front idler assembly and shaft to the rails,

using the appropriate holes (as shown) and tighten

securely.

Unroll the chain in the direction of the chain idler, allowing

the chain to loop around the pulley. Continue unrolling the

chain and engage the sprocket at the power unit. Chain

should be pulled tight before engaging the sprocket, but

do not overtighten, as damage can result. Be sure the

chain is strung though the hole from the top.

Locate the traveller near the center and attach the chain.

Tighten the chain sufficiently to remove any slack but,

once again, do not overtighten, as damage can result.

Using the 5/16” hardware provided, attach the center rail

supports to the rails.

Step 2: Header Bracket Positioning

Locate the centerline of the door opening and draw a

light pencil line on the door header and on the upper

portion of the door. Then, by raising the door, determine

the “high rise” of the door. This is the highest point to

which the door will rise when the top section starts to go

over the radius of the track. Using lag bolts provided,

mount the front header bracket a minimum of one inch

above the high rise on the centerline of the opening.

Step 3: Operator Installation

Using two 5/16” bolts, attach the operator to the header

bracket.

Raise the power-unit end of the operator and open the

door fully. Support the operator 3–4 inches above the

door, using a ladder or other suitable substitute. Make

sure the operator is in line with the door centerline.

(Installation Instructions Cont’d on Page 4)

040501

OSCO Model T Instructions Page 4

11-14-97

Installation Instructions (Cont’d)

Step 3: Operator Installation (Cont’d)

Secure the operator to the ceiling or overhead truss,

ensuring stability and allowing the operator to rest above

the path of the door track.

Important: During door travel, the operator must be

a minumum of one inch above the door

and be properly aligned.

Normally, angle iron of 1” X 1” X 1/8” size is ample for

hanging the operator, provided sufficient rigidity can be

obtained by diagonal bracing.

On doors over 10 feet high, it is necessary to support

the center (approximately) of the rail with a hanger

dropped from the ceiling. Holes are provided in the rail

for this purpose.

Finally, manually close the door fully and secure the

door bracket on the door centerline directly in line with

the door rollers. For wood doors, use two carriage bolts.

For metal or fiberglass doors, use two 5/16” bolts.

Step 4: Electrical Connection

A complete electrical circuit print is included with the

operator information packet. The power supply must be of

correct voltage and phase and should be brought into the

operator with no smaller than No. 12 wire. For proper wire

gauge, refer to “Wiring Specifications,” on Page 10.

Electrical power must be ample and not taken from an

overloaded line, as faulty operation will result. Proper

thermal protection is supplied with the operator. The motor

contains a thermal overload protector to guard against

overheating due to overload conditions.

IMPORTANT

A. Power supply must be of correct voltage and

phase.

B. Always disconnect power from the operator

before servicing.

C. Keep clear of the door during operation.

IMPORTANTNOTICE

This operator is supplied with a 3-button control station

(OPEN–CLOSE–STOP) accompanied by a precautionary

sign:

It is vital that the 3-button station be mounted within sight

but out of reach of the door and that the warning sign be

mounted adjacent to the 3-button station.

The 3-button station must be connected so the STOP

circuit between terminals #2 & #4 is not bypassed.

Also, if additional 3-button stations are to be con-

nected, the STOP buttons must be wired in series.

NOTE: A STOP button must be used when the instal-

lation has radio controls or a single button.

Desired Function Connecting Terminals

OPENINGDEVICE #1 & #4

STOP #2 & #4

CLOSE #3 & #4

OPEN& CLOSE #4 & #5

SAFETYTOREVERSE #4 & #6

24VACPOWER #2 & #10

020200

OSCO Model T Instructions Page 5

11-14-97

LimitSwitchAdjustment

Limit switches are factory set for short travel. Travellers

should be at least two feet from either end of the rails

when the unit is assembled.

1. Disconnect the door from the traveller.

2. Turn the power on and push the OPEN or CLOSE

button. The traveller should move approximately two

feet.

3. Adjust the limit nuts (found in the electrical control

panel) by releasing the spring-loaded detent plate

and turning the nuts in the desired direction. One

complete turn will allow the traveller (or door) to

move approximately four inches.

IMPORTANT: LSO-2 and LSC-2 must be actuated

before LSO-1 and LSC-1. LSO-2

should be actuated three revolutions of

limit shaft before LSO-1.

4. Be sure the detent plate is properly locked into both

limit nuts when adjustment is complete.

NOTE: On 3-phase equipment, direction can be wrong.

If the door closes when the OPEN button is

pressed or vice versa, any two of three motor

leads must be reversed. DO NOT REVERSE

THE PUSHBUTTON LEADS.

TURN OFF POWER TO THE

OPERATOR BEFORE

MAKING ADJUSTMENTS!

Clutch and Cutoff Switch Adjustment

The clutch is set light at the factory and must be prop-

erly adjusted in the field for the size and weight of the

door. Adjust the clutch spring tension so the operator will

drive the door closed. It is best to start with a light

adjustment and tighten one-half turn at a time.

Lubrication

The operator bearings and motor are factory lubricated

for life. It may be advisable to oil the roller chain to

prevent excessive dryness or rusting under humid

conditions.

Manual Disconnect

For your safety and protection, this operator is provided

with a manual disconnect system. It is recommended

that all persons be well informed of its purpose and

operation.

To disconnect the operator, pull the disconnect cord as

shown. To re-engage the operator, pull the disconnect

cord down and manually connect the door arm to the

traveller.

OSCO Model T Instructions Page 6

11-14-97

Ordering Replacement Parts

Use the numbers shown in the lists on the following pages to order all replacement parts.

1. Supply the serial number of your operator.

2. Specify the quantity of pieces needed.

3. Order by part number and name of part.

4. State whether to ship by freight, truck, parcel post, UPS, or air express.

5. State whether transportation charges are to be prepaid or collect.

6. Specify name and address of person or company to whom parts are to be shipped.

7. Specify name and address of person or company to whom the invoice is to be sent.

Troubleshooting

Door will not operate from OPEN or CLOSE

pushbutton:

A. The motor overload kicked out. Wait 15 minutes; the

overload will automatically reset. Be sure the door is

not binding.

B. Check for a defective transformer.

C. Check for a defective STOP button or loose connec-

tion in the stop circuit.

Door will not open from OPEN button but will close

from CLOSE button:

A. Make sure the open limit switch is not hung up.

B. Check for loose wiring on the open limit switch or the

open relay coil.

C. Check for a defective open relay coil.

Door will not close from CLOSE but will open:

Same as preceding, but in reverse.

Door runs in wrong direction on 3 phase:

Reverse the two motor leads.

Door not closing properly:

Be sure the detent plate is properly engaging the

travelling limit nuts.

Motor runs but door doesn’t move:

A. Tighten the clutch.

B. Check the set screw in the motor pulley.

C. Check the V belt.

Operator vibrates and bows:

If the door is 10 feet or higher, be sure center support is

used.

Operator stops when you release button (makes

rocking noise):

The clutch spring is too loose. Tighten the clutch nuts.

Operator requires constant pressure on OPEN or

CLOSE button:

Check that the clutch sprocket is properly seated.

OSCO Model T Instructions Page 7

11-14-97

OSCO Model T Instructions Page 8

11-14-97

Ref.

No. Part No. Description

2110-264 Intermediate Shaft Assembly

2 2100-607 Shaft Bracket

3 2110-462 Intermediate Shaft with Sprocket

4 2200-286 Pulley, 6"

5 2200-029 Flange Bearing, 1/2" (2)

8 2200-193 E-Ring, 1/2"

56 2400-203 Wave Washer, 1/2"

45 2400-048 HHCS, 5/16”-18 x 3/4”

2110-299 Clutch and Output Shaft Assembly

7 2110-463 Clutch Shaft with Sprocket

10 2200-218 Drive Sprocket, 48 B 10, 5/8" Bore

11 2400-026 Spring Pin

12 2400-236 Solid Pin

13 2100-846 Clutch Hub

15 2100-564 Clutch Disc

16 2220-006 Clutch Sprocket, 48 B 30, with Hub

18 2200-367 Clutch Spring

19 2400-061 Clutch Hex Nut

20 2400-062 Clutch Jam Nut

59 2400-215 E-Ring, 5/8" (2)

60 2200-195 Flange Bearing, 5/8" (2)

26 2110-266 Idler Assembly

27 2400-144 Idler Shaft

28 2100-904 Idler Spacer

29 2400-090 Hex Nut, 1/2"-13

30 2400-196 Fender Washer, 1/2" ID x 2" OD (2)

32 2400-244 Flat Hardened Washer, 1/2"

33 2400-054 Lock Washer, 1/2"

1 2100-764 Operator Base

21 2200-039 #48 Clutch Chain, 21 Links

24 2200-453 #48 Rotary Chain, 19 Links

54 2200-008 Sprocket, 48 B 10, 1/2" Bore Tapped

6 2200-208 V-Belt, 26"

23 2200-132 Motor Pulley, 2"

43 2100-801 Header/Rail Support Bracket

22 2500-445 Motor, 1/2 HP, 115V, 1 Phase

Rail Pairs 1 1/2" x 1 1/2"

42 2100-634 10' 8" Long — for 8' Door

2100-635 12' 8" Long — for 10' Door

2100-636 14' 8" Long — for 12' Door

2100-638 16' 8" Long — for 14' Door

Ref.

No. Part No. Description

25 2520-135 Complete Controller Assembly

(WD #2600-110)

2120-061 Controller Enclosure with Cover

2100-687 Enclosure Cover only

2100-057 Limit Switch Shaft

2200-029 Flange Bearing, 1/2”

2100-056 Detent Plate

2200-028 Detent Spring

2100-060 Limit Switch Spacer

2200-030 Limit Nut

2500-113 Capacitor

2100-113 Capacitor Clamp

2500-030 Limit Switch (LSO-1, LSC-1)

2500-440 Limit Switch (LSO-2, LSC-2)

2500-541 Relay - CRC or CRO

2500-025 Transformer, 115/24V

2500-442 Terminal Strip 3

2500-439 Terminal Strip 4

58 2500-033 Standard 3-Button Station

40 2110-275 Complete Door Arm Assembly

2110-328 Upper Door Arm Assembly

2100-768 Lower L-Arm

41 2100-544 Door Bracket

34 2200-887 Traveler

2110-533 Chain Tension Bolt with Hex Nuts

38 2400-168 Chain Tension Bolt, 5/16”

48 2400-011 Hex Nut, 5/16”-18

44 2200-654 #48 Chain, per foot

49 2200-010 #48 Master Link

2400-001 S-Clip

#48 Drive Chain Assembly

(Chain, master link, chain bolt, nuts)

2110-486 22' — for 8' Door

2110-456 26' — for 10' Door

2110-457 30' — for 12' Door

2110-458 34' — for 14' Door

Model T

Parts List #130

OSCO Drawing #2120-222

040501

OSCO Model T Instructions Page 9

11-14-97

OSCO Model T Instructions Page 10

11-14-97

Control Wiring

Wire

Volts Max Distance (ft) Gauge

24V 250 14

350 12

For distances of more than 350 feet, a

long-distance interface is required.

USE COPPER WIRE ONLY

1. Select your wire gauge from the top chart below.

2. The distance shown in the chart is measured in feet from the operator to the power source. DO NOT

EXCEED THE MAXIMUM DISTANCE.

3. When large-gauge wire is used, a separate junction box (not supplied) may be needed for the operator

power connection.

4. Select the gauge for control wiring from the bottom chart. For distances of more than 350 feet, a long-

distance interface is required.

5. Wire run calculations are based on the National Electrical Code, Article 430, allowing 5 percent voltage

drop.

6. Supply voltage must be within 10 percent of the operator rating under load conditions (not applicable for

208V).

7. Connect power in accordance with local codes.

8. The wire tables are based on standard copper wire. Wire insulation must be suitable to the application.

Wiring Specifications

Power Wiring

Volts Wire

& HP Max Distance (ft) Gauge

115V 281 12

448 10

713 8

1/2HP 1133 6

1802 4

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