Bradley 2903-28 Service Manual Download Page 4 | Manualshive

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Removing the Cover:

Step 1: Unscrew the two lock

screws with the security

wrench provided.

(Part # P15-419)

Step 2: Remove the cover taking

care to avoid damaging the cover

or internal components.

!

Caution: For Automatic Dryers

Be sure to disconnect the sensor cord

connecting the cover to the base before removing!

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Summary of Contents for 2903-28

Page 1: ...Service Manual for 2903 28 2904 28 How to Remove the Cover ...

Page 2: ...Cover Specification Cast Iron White Porcelain 2903 28 Sensor Activation replacement P N P15 420 2904 28 Push Button Activation replacement P N P15 421 ...

Page 3: ...Reminder Disconnect power to the unit before removing the cover ...

Page 4: ...ws with the security wrench provided Part P15 419 Step 2 Remove the cover taking care to avoid damaging the cover or internal components Caution For Automatic Dryers Be sure to disconnect the sensor cord connecting the cover to the base before removing ...

Page 5: ...Service Manual for 2903 28 2904 28 How to Remove the Heating Element ...

Page 6: ...t Specification Undulated heating element Material Winding in NICROM Body in MICA Automatic resetting circuit breaker protects against overheating Replacement Part Numbers P15 424 for UL Models P15 425 for CE Models ...

Page 7: ...Reminder Disconnect power to the unit before removing the cover ...

Page 8: ...Removing the Heating Element Step 1 Unscrew the three screws which connect the two halves of the scroll Step 2 Separate both parts of the scroll so that you can work inside ...

Page 9: ...version Step 1 Disconnect the cable from the electrical connection One cable of the heating element is connected to the electrical connection and the other one to the timer Step 2 Disconnect the cable from the timer ...

Page 10: ... Automatic version Step 1 Remove the circuit board from the base plate Both cables of the heating element are connected to the circuit board Step 2 Disconnect the two white cables from the terminal block ...

Page 11: ...Both versions To replace the heating element take the new one and follow the above steps in reverse Step 3 Remove the heating element ...

Page 12: ...Service Manual for 2903 28 2904 28 How to Remove the Motor Fuse ...

Page 13: ... Specification The fuse will blow to protect the motor in case of over voltage or short circuit The fuse is located on the motor support Replacement Part Number P15 432 for UL only CE models do not require a fuse ...

Page 14: ...Reminder Disconnect power to the unit before removing the cover ...

Page 15: ...crew counter clockwise Step 2 Remove the fuse from it s housing To replace the fuse take the new one and follow the above steps in reverse There is no need to remove the motor in order to change the fuse The photos show no motor but for demonstration purposes only ...

Page 16: ...Service Manual for 2903 28 2904 28 How to Remove the Motor ...

Page 17: ... Motor 5 500 rpm Class B rating Self lubricating bearings and long brush life Insulated by resilient mounting to eliminate noise and vibrations Protected by a 2 amp fuse Replacement Part Numbers P15 422 for UL models P15 423 for CE models ...

Page 18: ...Reminder Disconnect power to the unit before removing the cover ...

Page 19: ...Removing the Motor Step 1 Unscrew the three screws which connect the two halves of the scroll Step 2 Separate both parts of the scroll so that you can work inside ...

Page 20: ...the Motor Continued Step 3 Carefully remove the heating element Step 4 Unscrew the fan wheel by inserting a number 4 Allen wrench and removing it You can reach the screw through the hole in one of the fan blades ...

Page 21: ...Step 5 Remove the springs which are binding the motor Step 6 Remove the cable to the fuse Removing the Motor Continued ...

Page 22: ...matic version Timer push button version Step 8 Remove the motor being careful to remove the ground connection REMEMBER THIS DRYER IS A CLASS I DEVICE Removing the Motor Continued To replace the motor take the new one and follow the previous steps in reverse ...

Page 23: ...Service Manual for 2903 28 2904 28 How to Remove the Push Button Timer ...

Page 24: ...Push button Timer Specification Electro mechanical timer 34 second timer The dryer turns off automatically after use Replacement Part Numbers P15 426 for UL models P15 427 for CE models ...

Page 25: ...Reminder Disconnect power to the unit before removing the cover ...

Page 26: ...Removing the Timer Step 1 Remove the cable connectors to the motor and heating element Step 2 Disconnect the two cables from the timer to the terminal block ...

Page 27: ...Removing the Timer Continued Step 3 Loosen the screws which are holding the timer to the base Step 4 Remove the timer To replace the timer take the new one and follow the above steps in reverse ...

Page 28: ...Service Manual for 2903 28 2904 28 How to Remove the Sensor How to Remove the Sensor Cable How to Adjust the Detection Distance ...

Page 29: ...ensor Vandal resistant operating system will cause this unit to automatically shut off if sensor it completely blocked Adjustable Detection Range 2 6 inches 5 15 cm Replacement Part Numbers P15 438 for UL models P15 439 for CE models ...

Page 30: ...Reminder Disconnect power to the unit before removing the cover ...

Page 31: ...Step 1 Remove the circuit board from the base plate Step 2 Disconnect the cables coming from the heating element and motor from the circuit board To replace the circuit board take the new one and follow the above steps in reverse ...

Page 32: ... Disconnect the cables from the circuit board To replace the sensor cable take the new one and follow the above steps in reverse Do not forget to affix the LED s with a few drops of silicon Take care Never to tighten the wire Not to force the connector s connection Not to pull the sensor s wire between the base and the cover ...

Page 33: ...To adjust the detection distance Use the JUMPER A High setting Detection distance 8 10 inches B Low setting Detection distance 4 6 inches The hand dryers are supplied with the jumper on Low Setting ...

Page 34: ...Service Manual for 2903 28 2904 28 How to Replace the Motor Brushes ...

Page 35: ...Brushes Specification The brushes have a theoretical life of 3000 hours They are installed on the side of the motor Replacement Part Number P15 430 Brushes must be changed if they are shorter than 0 2 inches ...

Page 36: ...Reminder Disconnect power to the unit before removing the cover ...

Page 37: ... Step 1 Press the clip which is covering the brushes Step 2 Remove the clip to the side until you can see the brushes inside Step 3 Remove the brushes To replace the brushes take the new one and follow the above steps in reverse ...

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