Maytag MDG31 Service Procedures

Hot surface ignitor gas
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Service Procedures
for the
Model MDG31,51,77 Dryer
Hot Surface Ignitor Gas
Maytag Co.
403 West Fourth Street North
Newton, Iowa 50208
(641) 787-7000
Part No. 450274

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Summary of Contents for Maytag MDG31

  • Page 1 Service Procedures for the Model MDG31,51,77 Dryer Hot Surface Ignitor Gas Maytag Co. 403 West Fourth Street North Newton, Iowa 50208 (641) 787-7000 Part No. 450274...
  • Page 2 The illustrations included in this manual may not depict your particular dryer exactly. IMPORTANT For your convenience, log the following information: MDG31,51,77 DATE OF PURCHASE ______________________________________________ MODEL NO. ____________________________ DISTRIBUTOR’S NAME ___________________________________________________________________________________ SERIAL NUMBER(S) ______________________________________________________________________________________...
  • Page 3: Table Of Contents

    Table of Contents IMPORTANT You must disconnect and lockout the electric supply and the gas supply or the steam supply Part Locations and Removal ....4 before any covers or guards are removed from the machine to allow access for cleaning, Lower Front Panel Removal .........
  • Page 4: Part Locations And Removal

    For Models MDG31,51,77 LINT BOX/BLOWER ASSEMBLY REMOVAL: Unplug the motor harness. For MDG31, remove two screws above the lint UPPER FRONT PANEL REMOVAL: drawer. For MDG 51,77, also remove two screws Remove the four screws located just above the top beneath the gasket on the left and right side of the loading door.
  • Page 5: Gas Valve/Ignition System Removal

    Be careful during assembly not to damage the Hot Surface Ignitor. Replace assembly in the reverse order. For Models MDG31,51,77 Inspect all wires to be sure all lead directly toward To remove motorized impellor assembly: the front of the dryer.
  • Page 6: Gas Valve/Ignition System Components

    GAS VALVE/IGNITION SYSTEM COMPONENTS: TUMBLER SUPPORT WHEEL ASSEMBLY REPLACEMENT: For Models MDG31,51,77 The front wheel assemblies can be replaced with the lower front panel removed. Remove the three IGNITOR bolts by reaching upward with a socket or box wrench. The illustration below is provided to show the location of these wheels as the wheels cannot easily be seen while standing in front of the dryer.
  • Page 7: Tumbler Alignment

    A large screwdriver can provide the necessary leverage. Adjustment of the front of the tumbler is made by equalizing the gap on the top, bottom, left and right by moving the wheel assemblies. 450274-4 Maytag Co.
  • Page 8: Belt Replacement

    (Fig.3). Once this has been accomplished make sure to spin the basket by hand to self align the belt on motor sheave and idler wheel. Tighten the motor adjustment nut to position previous set. FIG. 3 FIG. 1 Maytag Co. 450274-4...
  • Page 9: Mdg31Belt Replacement

    MDG31 BELT REPLACEMENT: Shut off electrical power to the dryer. Lockout and tag out supply voltages. Follow the steps to remove front middle panel. Next you will remove either the front bottom or front upper panel, depending on pocket you are working on. Remove the belt from the motor sheave.
  • Page 10: Electrical Component Locations

    Back guard does not have to be removed. panel. For Models MDG51,77 For Models MDG51,77 DOOR SWITCH COMPUTER COVER SAIL BURNER SWITCH HIGH LIMIT For Models MDG31 AXIAL REVERSING PROBE RELAY DOOR SWITCH ROTATIONAL For Models MDG31 SENSOR SWITCH...
  • Page 11: Exhaust Probe, Exhaust Hi-Limit, And Lint Drawer Switch

    TEMPERATURE PROBE ______________________________________ ______________________________________ ______________________________________ EXHAUST ______________________________________ HI-LIMIT ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ 450274-4 Maytag Co.
  • Page 12 Part No. 450274 4- 03/09/06 - 0...

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