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American Dryer Corp. AD-20 manual

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Table of contents for the manual

  • Page 1

    Ser vice Pr ocedur es f or the Model 20 Dr y er s (AD-20, SL20, CG20, D20, and STI-8 Dryers GEN II) ADC Part No. 450261[...]

  • Page 2

    IMPORT ANT NO TE T O PURCHASER Information must be obtained from your local gas supplier on the instructions to be followed if the user smells gas. These instructions must be posted in a prominent location near the dryer . FOR Y OUR SAFETY Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other [...]

  • Page 3

    IMPORT ANT Y ou must disconnect and lockout the electric supply and the gas supply or the steam supply before any covers or guards are removed from the machine to allow access for cleaning, adjusting, installation, or testing of any equipment per OSHA (Occupational Safety and Health Administration) standards. Please observe all safety precautions d[...]

  • Page 4

    4 American Dryer Corp. 450261-2 Pa r t Locations and R emo val UPPER FRONT PANEL REMOV AL: Remove the four screws located just above the loading door . T ilt the bottom of the panel out and lif t the panel up and away from the dryer . LOWER FRONT PANEL REMOV AL: Remove the lint drawer . Remove the four screws located just below the loading door . T[...]

  • Page 5

    450261-2 www .amdry .com 5 BACK GUARD REMOV AL: Remove all facing visible screws. TOP COVER REMOV AL: With the back guard removed, the top is removed by pulling it toward the rear of the dryer and up. LINT BOX / BLOWER ASSEMBL Y REMOV AL: Unplug wires from Direct S park Ignition (DSI) module. Remove screws and nuts at the rear of the lint box. Unpl[...]

  • Page 6

    6 American Dryer Corp. 450261-2 LINT BOX / BLOWER ASSEMBL Y REMOV AL (continued): Pull the lint box down from the front and out slightly . T o remove motorized impellor assembly , remove five screws and four nuts shown at the arrows. Unplug three connections at the left of the lint box. The lint box may now be pulled out through the front of the dr[...]

  • Page 7

    450261-2 www .amdry .com 7 GAS V AL VE REMOV AL: Be sure to shut off the gas main and then proceed to remove electrical connections and screws indicated. Disconnect union and U-Bolt located just behind the union and the oven base. The U-Bolt is more easily accessed through the rear of the dryer . The gas valve and burner orifice can now be pulled o[...]

  • Page 8

    8 American Dryer Corp. 450261-2 TUMBLER SUPPORT WHEEL ASSEMBL Y REPLACEMENT : The front wheel assemblies can be replaced with the lower front panel removed. Remove the three bolts by reaching upward with a socket or box wrench. The illustration on the right is provided to show the location of these wheels as the wheels cannot easily be seen while s[...]

  • Page 9

    450261-2 www .amdry .com 9 TUMBLER ALIGNMENT : Proper alignment is achieved by making the gap between the tumbler and openings in the front and rear bulkheads equal on all sides. The gap may be checked for accuracy by using a thickness gauge. Adjust the tumbler position by loosening the three bolts and forcing the wheel assembly toward the center o[...]

  • Page 10

    10 American Dryer Corp. 450261-2 Electrical Component Locations ELECTRICAL P ANEL: The electrical panel is located behind the front upper panel. OVEN CONT ACTOR: Lower right front of the dryer (electric oven models). DOOR SWITCH: On upper front panel. J5 P14 T erminal Block A B C F1 J1 1 Oven Contactor Relay 1 Door Switch Relay 2 Blower Relay 3 Dri[...]

  • Page 11

    450261-2 www .amdry .com 11 FIRE SUPPRESSION SYSTEM ITEMS AND SAIL SWITCH: Rear of the dryer . DIRECT SP ARK IGNITION (DSI) MODULE: Lower right front of the dryer to left of the lint box. FLAME-PROBE: Under the gas oven and accessed from the rear of the dryer . Screw locations at arrows. FLAME-PROBE POSITIONING: Viewed from the rear of the dryer wi[...]

  • Page 12

    12 American Dryer Corp. 450261-2 EXHAUST PROBE, EXHAUST HI-LIMIT , AND LINT DRA WER SWITCH: T emperature probe and exhaust hi-limit are accessible once the lint box is removed. The lint drawer switch can be removed after the cover has been removed. ROT A TION SWITCH: Just behind the upper front panel, as viewed from the rear of the dryer with top r[...]

  • Page 13

    450261-2 www .amdry .com 13 Belt Installation Remove the back guard, front upper panel, and front lower panel. Cut the locking end off the plastic wire tie and use a piece of electrical tape to secure the wire tie to one end of the 4-foot section of electrical wire (Fig. 1). Push the wire tie between the tumbler felt and the middle front panel ring[...]

  • Page 14

    14 American Dryer Corp. 450261-2 Pull the belt up through the tumbler felt until there is enough belt to begin to loop the belt around the tumbler (Fig. 7 and 8). T ape the belt to the outside of the tumbler with duct t ape approximately 2-inches from the outside edge of the tumbler (Fig. 9). Rotate the tumbler slowly in the clockwise direction, wh[...]

  • Page 15

    450261-2 www .amdry .com 15 Pulling the belt through the tumbler felt gap will tend to flip the felt. Before pulling the last few inches out of the tumbler , lace the electrical wire back through the loop in the belt (Fig. 13 on the previous page). Pull the remaining belt and a couple of inches of wire out of the tumbler and into the area above the[...]

  • Page 16

    ADC Part No. 450261 2 - 09/15/05 - 1[...]