Quikserv BP-7252E Service Manual

Service Manual

Electric BP-7252E Dual Opening Window

ELECTRIC BP-7252E

DUAL OPENING

Service Manual

BP-7252E DUAL OPENING

Contents

Operation and Maintenance Procedures 2

Trouble Shooting 3-6

Limit Switch Adjustment 7

Component Rack Removal 8

Parts Description 9

Window hardware Detail 10

PC Board Components 11

Wiring Diagrams 12-13

Warranty Service Policy 14

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1

Se

Electric BP-7252E Dual Opening Window

ELECTRIC BP-7252E DUAL OPENING

Operaon and Maintenance Procedures

Remove access cover panel to service electrical and

mechanical components

Operation Procedures:

 Unlock all locking mechanisms and ensure

that the doors are free of obstructions.

 Turn the power Switch to the “on” position,

located on the upper left hand corner.
(Some windows the switch may be located
behind the access cover.)

General Maintenance:

 Proper operation of the “Up-Eye” unit re-

quires the attendant to be directly in front

of and over all 3 photoelectric sensors

while serving. Proper operation of the
“Thru-Beam” unit requires the attendant to
stand between the Emitter and Receiver
eyes.

 <Note> The photo-bar should be lined up

with the middle of the service opening.

General Cleaning Guidelines:

 All weather-stripping should be checked

and cleaned weekly.

 All glass, aluminum framing, stainless

steel, and plastic eye covers & lens should
be kept clean at all times. All cleaning flu-

ids and applicators should be non­abrasive.

 Always disconnect the power supply before

servicing.

 Slide rail system should be kept clean and

re-oiled with light weight oil every six (6)
months.

 The eye-sets should be checked weekly to

make sure they are fully fastened to unit or
wall. They should also be cleaned of any
dirt or debris daily with non-abrasive clean­er.

Please refer to the trouble shooting section for

additional information on the window adjust-

ments or service procedures.

Contact us at [phone] for assistance or

for information on the nearest service center in
your area.

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Service Manual

Electric BP-7252E Dual Opening Window

ELECTRIC BP-7252E DUAL OPENING

TROUBLE SHOOTING REFERENCE

PAGE

Trouble Probable Cause Probable Soluon

1. No power to the unit Check the Circuit breaker

Window

Does

Not Operate

2. Power Switch is o or defecve Turn on switch or replace (Fig. 1-A)

3. Fuse in switch or pc board blown Check and Replace (Fig. 1-C or 6-B)

4. Component Rack not plugged in Check and plug in (Fig. 1-B)

5. Open limit switch defecve or discon-

nected

6. Defecve eye set Replace defecve part (Fig. 5-E or G)

7. Obstrucon in door movement Check locks, slide rail, and remove

Connue Page 4

3

Replace or reconnect (Fig. 1-Z & J)

obstrucons.

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Service Manual

Electric BP-7252E Dual Opening Window

Trouble Shoong Electric BP-7252E Dual Opening

Trouble Probable Cause Probable Soluon

8. Defecve motor or capacitor Replace motor (Fig. 1-D & I)

Window

9. Thermal overload tripped in motor Replace or adjust limit switches (Fig. 2)

Does

Not Operate

10. Defecve PC Board Replace (Fig. 1-F)

11. Defecve slide rail Replace (Fig. 1-L)

12. Electric lock defecve or adjusted Adjust or replace (Fig. 1-N)

Trouble Probable Cause Probable Soluon

Doors stay in

the open

posion

1. Closed limit switch is defecve or dis-

connected

2. Eye assembly is unplugged or discon-

nected

3. Photo-eye is obstructed or misaligned Remove obstrucon (Fig. 5-E)

4. Faulty eye wire connecon Check all connecons-repair or replace

5. Defecve PC board Replace (Fig. 1-F)

6. Reverse gear in motor bad Replace (Fig. 1-D)

7. Door misaligned Adjust door (Fig. 1-M & G)

Replace or reconnect (Fig. 1-E )

Check connecon point (Fig. 5)

Trouble Probable Cause Probable Soluon

Motor runs

but the doors

does not

operate

1. Motor sha pulley or pulley block

loose

2. Broken drive belt Replace (Fig. 1-H)

3. Belt bracket loose or missing Tighten or replace (Fig. 1-G)

4. Bad motor Replace (Fig. 1-D)

4

Tighten or replace (Fig. 1-D or K)

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Service Manual

Electric BP-7252E Dual Opening Window

Trouble Shoong Electric BP-7252E Dual Opening

Trouble Probable Cause Probable Soluon

Window will

run for short

period then

1. Thermal overload in the motor has

been tripped

Limit switch or switches may not be set

properly (Fig. 2) & (Fig. 1-E, Z & J)

stop

Trouble Probable Cause Probable Soluon

Doors are

dragging or

binding

1. Slide rail is dirty or defecve Clean and oil or replace if needed. (Fig.1-

L)

2. Loose door bracket Tighten screws and make sure inserts in

door are not loose. (Fig.1-M)

3. Doors misaligned Adjust door (Fig.1-M & G)

3. Drive Belt too ght Loosen Drive Belt. (Fig. 1-H)

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