In a clothes dryer having a rotatable drum, heater means for drying clothes in the drum, a motor to rotate the drum, a belt connecting the motor and the drum for rotating the drum, tensioning means including a spring bracket and belt engagement means for applying tension to and held in an energy storing position by the belt, and an electrical circuit for connection to an electrical supply including the motor and the heater means, the improvement comprising: means for preventing damage to the dryer and clothes therein on breaking of the belt, comprising a switch connected in the electrical circuit for controlling the energization of the motor, said switch including a switch actuator mounted spaced from and in the path of movement of the spring bracket for direct contact by the spring bracket upon breaking of the belt and release of the energy stored in the bracket to open the circuit and interrupt energization of the motor. 4 the spring bracket 84 is illustrated in the shape assumed thereby when there is little or no flexure of the arcuate portion 120. After the harness is detached, you can see the faulty belt switch. 3, a drive belt 54 is illustrated in a normal operating condition entrained about the motor pulley 56, the rotatable drum 34 and the idler pulley 82 carried by the spring bracket 84. No. Get shopping advice from experts, friends and the community! If your dryer won’t start and the belt switch isn’t the problem, please contact us today, and we’ll be happy to diagnose and repair the malfunction. Replace Broken Dryer Door Swich: This instructable describes how to replace a broken door switch on a Kenmore Gas Dryer. Then, secure the bulkhead by replacing its top and bottom screws. Like any other component in your appliance, the belt switch can malfunction causing your dryer to stop working even though the drive belt is fully functional. United States Patent 7609491 . 1, a clothes dryer 10 is illustrated as comprising an enclosure cabinet or housing 12 with a control console 14 thereon, housing a control device 16 for regulating the drying operation. A safety switch 86 is mounted below a portion of the spring bracket 84 and connected in the dryer control circuit, as will be set forth below in greater detail. In a clothes dryer having a rotatable drum, heater means for drying clothes in the drum, a motor to rotate the drum, a belt connected the motor and the drum for rotating the drum, tensioning means including a spring bracket and belt engagement means for applying tension to and held in an energy storing position by the belt, and an electrical circuit for connection to an electrical supply including the motor and the heater means, the improvement comprising: means for preventing damage to the dryer and clothes therein on breaking of the belt, comprising a switch connected in the electrical circuit for controlling a switch actuator mounted spaced from and in the path of movement of the spring bracket for direct contact by the spring bracket upon breaking of the belt and release of the energy stored in the bracket to open the circuit and interrupt energization of the motor, and the dryer including a base and comprising mounting means mounting said switch on said base, said mounting means including a shoulder extending adjacent said switch actuator and in the path of movement of the spring bracket to limit depression of said switch actuator. How To: Samsung Broken Belt Switch 3405-001077 - Duration: 14:07. Shipping Information . An access opening 20 is provided in the front panel 26, as defined by an axially in-turned flange 31, having a closure door 32 cooperating therewith for loading and unloading the clothes drying appliance or dryer 10. item 2 Whirlpool Kenmore Dryer Broken Belt Switch 279782, 3388223, 3394881, 469714 1 - Whirlpool Kenmore Dryer Broken Belt Switch 279782, … but exemplary electrical circuit for controlling the operation of the dryer 10 comprises the drive motor 52 and a programmer or control device 16 including a timer motor 88 coupled to the control knob 18. With the drum removed, you now have access to the drive motor. A clothes dryer having a rotatable drum. Step by step instructions on how to replace a Broken Belt Switch #WPW10411937. 4. With the bulkhead in place, reconnect the motor sensor wire harness. Genuine product manufactured by Whirlpool. This is one of the easier parts on your dryer to fix. Broken belt switch control system for clothes dryer . Next, open the dryer door and replace the screws that hold the lint screen housing to the front panel. Symptoms of a broken belt are similar to that of a broken door switch. If it does not have continuity, it should be replaced. In the event that the drive belt breaks and no longer holds the spring arm in its normal operating position. Referring specifically to FIG. for example 115 VAC by way of the timer contacts 90, 92, a push to start switch 106, the safety switch 86 having contacts 108 and a door operated switch 110. In order to access the belt or switch will require removing the lint duct housing, front bulkhead and drum. Dryer Broken Belt Switch for Maytag MEDX500XW0 Dryer. The spring bracket 84 comprises a portion 114 which is supported on the base 22, an S shaped end 116 which extends through a slot 118 in the base 22, an arcuate portion 120, a switch operating portion 122, and a yoke portion 124 which rotatably mounts the idler pulley 82. Clothes dryer motor with broken belt switch . The interlock switch senses the door is shut and the dryer can begin. Broken belt switch control system for clothes dryer US3890719A (en) * 1974-01-25: 1975-06-24: Whirlpool Co: Broken belt power-disconnect system for dryers US4300293A (en) * 1979-06-01: 1981-11-17: Canadian Appliance Manufacturing Company Limited: Belt tensioning assembly for a clothes dryer Privacy Policy - Conditions of Use - Infringement Policy, Monday – Friday: 7:30am – 5:30pm  1 3,890,720 DATED June 24, 1975 INV ENTOR( 1 George V. Nichols It is certified that ei'rsr appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below: Column 5, claim 4, line 36, correct spelling of connecting- Column 5, claim 4, line 46, after "trolling" insert the energization of the motor, said switch including--. Read More-+ Diagram # 5. 7. If the belt breaks mid-cycle, the switch turns off your dryer and keeps it off until the damaged belt is replaced. In a clothes dryer having a rotatable drum, heater means for drying clothes in the drum, a motor to rotate the drum, a belt connected the motor and the drum for rotating the drum, tensioning means including a spring bracket and belt engagement means for applying tension to and held in an energy storing position by the belt, and an electrical circuit for connection to an electrical supply including the motor and the heater means, the improvement comprising: means for preventing damage to the dryer and clothes therein on breaking of the belt, comprising a switch connected in the electrical circuit for controlling a switch actuator mounted spaced from and in the path of movement of the spring bracket for direct contact by the spring bracket upon breaking of the belt and release of the energy stored in the bracket to open the circuit and interrupt energization of the motor, and. If this switch fails, it could shut off power to the dryer even when the belt is not broken. In FIG. Dryer Broken Belt Switch for Kenmore 110.87761801 Dryer. A drive motor 52 is mounted on the bottom panel or 5 base 22 in a rear corner of the cabinet 12 and rotatably drives the drum 34 by means of a transmission, in this in frictional engagement with the drum 34 and around a motor pulley 56 mounted at one end of a motor shaft 58. At this point, you need to take out the idler pulley to reach the belt switch. the dryer including a base and comprising mounting means mounting said switch on said base, said mounting means including a shoulder extending adjacent said switch actuator and in the path of movement of the spring bracket to limit depression of said switch actuator. or in response to the energization of the motor in accordance with the present invention, the heater means 76 is deenergized to prevent overheating of the fabrics being dried, the machine itself. Then, use the belt to carefully guide the drum out of the dryer cabinet. I do not know where to put a led on it, and it is not in the diagram or pictures. Next, lift up the dryer drum so it sits on the lip of the bulkhead. A control knot 18 selectively sets the control device 16 for various drying cycles of operation, as for example, automatic or timed drying cycles. The enclosure cabinet or housing 12 comprises a horizontal top panel 20 and a horizontal bottom panel or base 22, a pair of vertical side panels 24, a vertical front panel 26 and a vertical rear panel 28. The warm air system 62 thus circulates a stream of warm air through the drum 34, subjecting clothing being placed therein to a drying environment to remove mositure from the fabric while the clothing is tumbled as the drum rotates. The switch senses whether the drive belt is intact or broken. A switch is serially connected in at least [52] U.S. Cl. If the belt breaks mid-cycle, the switch turns off your dryer and keeps it off until the damaged belt is replaced. With the front of your appliance reassembled, grab the support panel that houses the dryer control board and situate it on the top of your dryer. I have just put in a replacement motor, part #279787, and having issues with the wiring which does not appear to be the same. Next, reattach the idler pulley by replacing its shoulder bolt. Please enter United States zip code into the field provided and click the "update" button to receive a shipping estimate. A detailed description of the operation of this type of dryer circuit is specifically set forth in U.S. Pat. In a clothes dryer having a rotatable drum, heater means for drying clothes in the drum, a motor to rotate the drum, a belt connecting the motor and the drum for rotating the drum, tensioning means including a spring bracket and belt engagement means for applying tension to and held in an energy storing position by the belt, and an electrical circuit for connection to an electrical supply including the motor and the heater means, the improvement comprising: means for preventing damage to the dryer and clothes therein on breaking of the belt, comprising a switch connected in the electrical circuit for controlling the energization of the motor, said switch including a switch actuator mounted spaced from and in the path of movement of the spring bracket for direct contact by the spring bracket upon breaking of the belt and release of the energy stored in the bracket to open the circuit and interrupt energization of the motor, and the dryer including a base and said switch including a switch body, said actuator extending from said switch body, and comprising mounting means mounting said switch on said base, said mounting means including a portion which extends adjacent said switch actuator beyond said switch body and less than the extent of said switch actuator to stop the bracket after contact thereof with and operation of said switch actuator to prevent damage to said switch. U.S. Pat. The drum 34 includes a radially inwardly extending front closure wall 41 having an access opening 42 therein formed by means of an axially outturned flange 43. Note: This video is intended to give you the general idea … However, some dryers have a switch that shuts off power to the dryer if the drive belt is broken. 5. Then, lift the bulkhead off the dryer frame. On most dryers, when the dryer belt breaks, the motor will still run, but the drum won’t turn. Now, all that is left to do is plug your dryer in and start it up to ensure the new belt switch resolved the issue. Abstract: A clothes dryer includes a motor adapted to be mounted on a frame of the dryer for driving a dryer belt to rotate a drum of the dryer. $19.66 +$9.95 … 4:56 A raceway or circumferential groove 50 indented in the peripheral wall of the rear portion of the drum 34 serves as a track for the rollers 48. In order to release the wire harness from the control board, use your flathead screwdriver to depress the small tab locking it in place. It’s also fairly easy to troubleshoot. In a clothes dryer having a rotatable drum, heater means for drying clothes in the drum, a motor to rotate the drum, a belt connecting the motor and the drum for rotating the drum, tensioning means including a spring bracket and belt engagement means for applying tension to and held in an energy storing position by the belt, and an electrical circuit for connection to an electrical supply including the motor and the heater means, the improvement comprising: means for preventing damage to the dryer and clothes therein on breaking of the belt, comprising a switch connected in the electrical circuit for controlling the energization of the motor, said switch including a switch actuator mounted spaced from and in the path of movement of the spring bracket for direct contact by the spring bracket upon breaking of the belt and release of the energy stored in the bracket to open the circuit and interrupt energization of the motor. 0 a\ 2 24;- "n 4/ 7 1 o I Z 50 x ,I 50. h 25x 111 w i I Z 54 r2 r y f/ X4 22 j SHEE PATENTEIJJUN 24 I975 BROKEN BELT SWITCH CONTROL SYSTEM FOR CLOTHES DRYER BACKGROUND OF THE INVENTION 1. The dryer pulley, commonly called the idler pulley, keeps the dryer drive belt under tension as the belt wraps around the dryer … 2. In addition, it is known in the art to utilize an idler mechanism to operate a switch via a lever arrangement to control the drive motor of a clothes dryer. Reference may therefore be taken to that patent and a detailed description of operation of the circuit will not be given here. Set it to RX1, remove the leads, and touch the probes to the switch's terminals. The extent of the shoulder 128, however. $10.79. The dryer will not … From all the info I got, I narrowed it down to 3 parts, Dryer Thermistor, #AP4201716, Thermal fuse# AP4201894 and Broken belt switch# AP4044838. Genuine product manufactured by Whirlpool. The safety switch 86 also includes a switch actuator. At this point, you need to unthread the screws securing the control panel frame to the front of your dryer. Belt Switch: Some dryer models use a belt switch attached to the belt tension pulley, which will open if the dryer's belt breaks, not allowing the dryer to operate. item 1 Whirlpool Maytag Kenmore DRYER Belt Switch & Lever -- Genuine OEM 279782 3394881 1 - Whirlpool Maytag Kenmore DRYER Belt Switch & Lever -- Genuine OEM 279782 3394881. U.S. Pat. According to the invention, a resilient spring bracket carrying an idler pulley is mounted on the base of clothes dryer so that in its normal operating position the bracket is flexed to store energy and apply tension to the dryer drive belt which is entrained about the drive pulley of the drive motor and the rotatable drum of the clothes dryer. symbolically represented by a plunger 112. for operating the switch as set forth below. FIG. Perform test#2 in order to check the broken belt switch.
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