American Dryer Corp ADG-320D User Manual

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b.To decrease gap R, loosen (turn counterclockwise [CCW]) adjustment bolt B and tighten (turn clockwise [CW]) adjustment bolt A.

c.To increase gap L, loosen (turn counterclockwise [CCW]) adjustment bolt B and tighten (turn clockwise [CW]) adjustment bolt A.

d.To decrease gap L, loosen (turn counterclockwise [CCW]) adjustment bolt A and tighten (turn clockwise [CW]) adjustment bolt B.

6.Tighten and secure both adjustment bolts and jam (hex) nuts.

7.Tighten bearing bolts loosened in Step #3.

8.Check belt tension and make the necessary adjustments (follow Belt/Idler TensionAdjustment Procedure inSection K).

9.Reinstall the upper half of the rear split back guard panel removed in Step #2.

10.Reestablish power to the dryer.

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S. TO REPLACE BASKET (TUMBLER) AND/OR BASKET (TUMBLER) SUPPORT

1.Discontinue power to the dryer.

2.Remove the lint drawer and the control/lint door from the dryer (follow Lint Drawer and Control/Lint Door Removal Procedures inSection A andSection B).

3.If lower basket (tumbler) is being serviced, proceed to Step #4.

If upper basket (tumbler) is being serviced, slide the control box out 3/4’s of the way and disconnect the three (3) wire harness connectors located at the back of the control box, then remove control box from the dryer.

4.Remove front panel from the basket (tumbler) being serviced (follow Front Panel Removal Procedure in

Section E).

5.Remove belt from dryer (follow Belt Removal Procedure inSection H).

6.Remove both the upper and lower halves of the rear split back guard panels to either the top or the bottom basket (tumbler), depending on which basket (tumbler) is being serviced.

7.Loosen the two (2) setscrews on the pillow block bearing and flange bearing. (The two [2] setscrews on the flange bearing can be reached through the opening at the bottom of the bearing box.)

8.Remove the basket (tumbler) and support assembly from the front of the dryer. If the basket (tumbler) cannot be removed freely, clean the shaft area (with emery cloth) and spray withWD-40or a similar lubricant. Then, with a block of wood against the shaft end, strike the block of wood with a hammer or mallet to move shaft past any burrs made by the setscrews.

IMPORTANT: DO NOT strike the shaft directly with a hammer.

9.If entire basket (tumbler) and support assembly is being replaced, proceed to Step #11.

10.Removal of support from the basket (tumbler):

a.Remove the socket setscrew at center of inside basket (tumbler) back wall.

b.Loosen and remove the three (3) sets of nuts and washers from the basket (tumbler) tie rods, then remove the three (3) tie rods.

c.Reassemble support to basket (tumbler) by reversing the procedure.

11.Reassemble the basket (tumbler) and support assembly into the dryer by reversing Step #7 and Step #8.

12.Reinstall the belt removed in Step #5.

13.Reinstall the front panel removed in Step #4.

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14.Make the necessary vertical alignment and lateral alignment adjustments (follow Basket [Tumbler] Vertical Alignment and Basket [Tumbler] Lateral Alignment Procedures inSection Q andSection R).

15.Reinstall both the upper and lower halves of the rear split back guard panels removed in Step #6.

16.Make the necessary belt/idler adjustment (follow Belt/Idler Tension Adjustment Procedure inSection K).

17.Reverse Step #1 through Step #3.

T. TO REPLACE BASKET (TUMBLER) SUPPORT PILLOW BLOCK BEARING

1.Discontinue power to the dryer.

2.Remove the upper half of the rear split back guard panel to either the top or the bottom basket (tumbler), depending on which basket (tumbler) is being serviced.

3.Loosen pillow block bearing adjustment jam (hex) nuts and bolts (one [1] on each side of bearing support).

4.Loosen the two (2) bearing setscrews.

5.Remove the two (2) sets of nuts, washers, and bolts securing the bearing to the bearing box support, then remove the bearing.

6.Reinstall bearing and hardware by reversing Step #3 through Step #5.

7.Make the necessary vertical alignment and lateral alignment adjustments (follow Basket [Tumbler] Vertical Alignment and Basket [Tumbler] Lateral Alignment Procedures inSection Q andSection R).

IMPORTANT: Make sure proper belt adjustment is made.

8.Reinstall the upper half of the rear split back guard panel removed in Step #2.

9.Reestablish power to the dryer.

U. TO REPLACE BASKET (TUMBLER) SUPPORT FLANGE BEARING

1.Discontinue power to the dryer.

2.Remove the lint drawer and the control/lint door (follow Lint Drawer and Control/Lint Door Removal Procedures inSection A andSection B).

3.If the lower basket (tumbler) is being serviced, proceed to Step #4.

If upper basket (tumbler) is being serviced, slide the control box out 3/4s of the way and disconnect the three (3) wire harness connectors located at the back of the control box, then remove the control box from the dryer.

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4.Remove front panel from the basket (tumbler) being serviced (follow Front Panel Removal Procedure inSection E).

5.Remove belt from dryer (follow Belt Removal Procedure inSection H).

6.Remove the upper half of the rear split back guard panel to either the top or the bottom basket (tumbler), depending on which basket (tumbler) is being serviced.

7.Loosen the two (2) setscrews on the pillow block bearing and flange bearing. The two (2) setscrews on the flange bearing can be reached through the opening at the bottom of the bearing box.

8.Remove the basket (tumbler) and support assembly from the front of the dryer. If the basket (tumbler) cannot be removed freely, clean shaft area (with emery cloth) and spray withWD-40or a similar lubricant. Then, with a block of wood against the shaft end, strike the block of wood with a hammer or mallet to move shaft past any burrs made by the setscrews.

IMPORTANT: DO NOT strike the shaft directly with a hammer.

9.Remove the four (4) sets of nuts, washers, and bolts securing the bearing box assembly to the dryer. Then, remove the bearing box assembly.

10.Remove the four (4) nuts securing the flange bearing to the dryer, then remove the bearing from dryer. Reverse procedure for installing new bearing.

11.Reassemble basket (tumbler)/support assembly into the dryer.

12.Reassemble bearing box assembly to dryer.

13.Reconnect belt to idler/motor removed in Step #5.

14.Reinstall the front panel removed in Step #4.

15.Make the necessary vertical alignment and lateral alignment adjustments (follow Basket [Tumbler] Vertical Alignment and Basket [Tumbler] Lateral Alignment Procedures inSection Q andSection R).

16.Check belt tension and make the necessary adjustments (follow Belt/Idler Tension Adjustment Procedure inSection K).

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V. TO REPLACE 330º (BURNER) HI-LIMITSWITCH (THERMOSTAT)

NOTE: The 330º (burner)hi-limitswitch (thermostat) is located on the burner box chamber at the rear of dryer.

1.Discontinue power to the dryer.

2.Remove the lower half of the split back guard panel to either the top or the bottom basket (tumbler), depending on which basket (tumbler) is being serviced.

3.Disconnect wiring to the 330º hi-limitswitch (thermostat).

4.Disassemble hi-limitfrom burner chamber by removing the two (2) sheet metal screws securinghi-limitto the burner box chamber.

5.Reverse procedure for installing new 330º (burner) hi-limitswitch (thermostat).

6.Reestablish power to the dryer.

W. TO REPLACE SAIL SWITCH

NOTE: The sail switch/damper is located in the area of the gas valve train assembly.

1.Discontinue power to the dryer.

2.Remove the lint drawer and the control/lint door (follow Lint Drawer and Control/Lint Door Removal Procedures inSection A andSection B).

3.Remove the sail switch/damper rod assembly from the dryer.

4.Disassemble the sail switch bracket assembly from the dryer by removing the two (2) Phillips head screws located in the lint drawer area.

5.Disassemble the sail switch from the mounting bracket by loosening and removing the two (2) slotted head machine screws securing the sail switch to the sail switch bracket.

NOTE: When disassembling the sail switch from the bracket, hold on to the twin speed nut located at the back side of the sail switch bracket into which the screws are threaded.

6.Disconnect the two (2) wires from the sail switch.

7.Reverse Step #3 through Step #6 to install new sail switch.

8.Adjust the sail switch by bending the actuator arm of the switch itself, so that when the sail switch damper is manually closed, the sail switch activates and when the damper is released, the sail switch deactivates.

9.Reverse Step #1 and Step #2.

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X. TO REPLACE MAIN DOOR SWITCH

1.Discontinue power to the dryer.

2.Open the main door completely.

3.Remove the two (2) Phillips head screws holding the main door switch housing in place.

4.Disconnect the main door switch wires from the switch (two [2] yellow wires).

5.Disassemble door switch by removing the two (2) nuts and washers holding the door switch in place.

6.Reverse this procedure to install new door switch.

IMPORTANT: UNDER NO CIRCUMSTANCES should the door switch be disabled.

IMPORTANT: When reinstalling the door switch housing to the dryer, be sure the internal wiresDO NOT get pinched between the door switch housing and the front panel.

7. Reestablish power to the dryer.

Y. TO REPLACE DIRECT SPARK IGNITION (DSI) MODULE

1.Remove the lint drawer, the control/lint door, and the gas valve train assembly from the dryer (follow Gas Valve Train Removal Procedure inSection C).

2.Disassemble the DSI module/bracket assembly from the gas valve train slide by removing the two (2) sets of nuts and washers securing the bracket to the gas valve train.

3.Disconnect ALL wiring to the DSI module including the orange high voltage (HV) lead.

IMPORTANT: Identify the location of each wire for correct reinstallation.

4.Disassemble the DSI module from the bracket by removing the four (4) sets of nuts and washers securing the DSI module to the bracket.

5.Reverse Step #3 through Step #5 to install the new DSI module.

IMPORTANT: Be sure wires removed inStep #4 are connected to the correct terminal positions. When connecting the orange high voltage (HV) lead to the DSI module, be sure it is securely in place.

6.Reinstall the gas valve train, the control/lint door, and the lint drawer removed in Step #2.

7.Reestablish power to the dryer.

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Z. TO REPLACE IGNITOR/PROBE ASSEMBLY

1.Discontinue power to the dryer.

2.Remove the lint drawer, the control/lint door, and the gas valve train assembly from dryer (follow Gas Valve Train Removal Procedure inSection C).

3.To replace either ignitor probe or flame sensor probe, simply remove Phillips head screw holding device to bracket and disconnect wire.

4.Reverse Step #2 and Step #3 to install the new ignitor and/orflame-probeassembly.

5.Reestablish power to the dryer.

AA. TO REPLACE GAS VALVE

1.Discontinue power to the dryer.

2.Close ALL gas shutoff valves in gas supply line to the dryer.

3.Remove the lint drawer, the control/lint door, and the gas valve train assembly from dryer (follow Gas Valve Train Removal Procedure inSection C).

a.Remove the two (2) sheet metal screws from bottom side of the gas valve train slide, which secure the brackets at the inlet side of the gas valve.

b.Remove the two (2) sets of nuts securing the manifold bracket to the gas valve train slide and disassemble valve/manifold assembly from slide.

4.Remove 1/2” street elbow from inlet side of gas valve.

5.Remove manifold from gas valve.

6.Remove pressure test line (brass) elbow from the gas valve pressure tap.

7.Reverse Step #4 through Step #6 to install the new gas valve.

IMPORTANT: When using pipe dope for gas connections, only pipe dope suitable for both natural gas and liquid propane (L.P.) gas applications is to be used!!!

NOTE: The new gas valve is supplied with a plug at the pressure tap. Remove this plug and replace it with the brass elbow removed inStep #6.

8. Reassemble the gas valve/manifold assembly to the gas valve train slide by reversing Step #3.

NOTE: When making wiring connections, be sure the jumper wire is in place at gas valve terminal #1 and terminal #3.

9. Reinstall the gas valve train assembly into dryer removed in Step #3.

NOTE: Be sure the union shutoff valve at the inlet area of the gas valve is in the “On” (open) position.

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10.Reinstall the control/lint door and the lint drawer removed in Step #3.

11.Open ALL shutoff valves closed inStep #2.

12.Reestablish power to the dryer.

BB. TO CONVERT DRYER FROM NATURAL GAS TO LIQUID PROPANE (L.P.) GAS

1.Discontinue power to the dryer.

2.Close ALL gas shutoff valves in gas supply line to the dryer.

3.Remove the lint drawer, the control/lint door, and the gas valve train assembly from dryer (follow Gas Valve Train Removal Procedure inSection C).

4.With the gas valve train assembly removed from the dryer, remove the two (2) sets of nuts securing the manifold bracket to the gas valve train slide.

5.Pull manifold/valve assembly back slightly, so that the burner orifice is exposed.

6.Unscrew burner orifice and replace with L.P. orifice.

IMPORTANT: Use extreme care when removing and replacing orifice. THIS ORIFICE IS MADE OF BRASS, WHICH IS EASILY DAMAGED.

NOTE: Consult factory when replacing orifice for elevations over 2,000 feet (609.6 meters).

7.Reinstall the valve/manifold assembly by reversing Step #4 through Step #6.

8.Locate valve regulator adjustment cover. Remove cover with slotted screwdriver, install the L.P. valve stem/spring kit, then reinstall cover.

9.Reinstall the gas valve train assembly removed in Step #3.

NOTE: Be sure the union shutoff valve at the inlet area of the gas valve is in the “On” (open) position.

10.Reinstall the control/lint door and the lint drawer removed in Step #3.

11.Convert opposite basket (tumbler) by following Step #2 through Step #11.

12.Once the conversion of both baskets (tumblers) is complete, open ALL gas shutoff valves closed inStep #2.

IMPORTANT: The gas valve pressure regulators are now blocked open. Gas pressuremust now be regulated at the source (L.P. tank) or a regulatormust be added in the gas supply line of each dryer. A consistent water column (W.C.) pressure of 10.5 to 11.0 inches (26.1 to 27.4 mb)must be provided.

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13. Reestablish power to the dryer.

CC. TO REPLACE COIN VAULT

1.Discontinue power to the dryer.

2.Remove both the upper and lower lint drawers and the control/lint doors from the dryer (follow Lint Drawer and Control/Lint Door Removal Procedures inSection A andSection B).

3.Remove the control box and the lower front panel from the dryer (follow Front Panel Removal Procedure inSection E).

4.Remove the coin box.

5.From inside of coin vault, loosen and remove the four (4) nuts securing the coin vault to dryer inner top. Then, remove the coin vault from the dryer.

6.Install the new coin vault by reversing Step #5.DO NOT tighten the four (4) nuts, theymust be left loose at this time for the coin vault adjustment.

7.Reinstall the front panel removed in Step #3.

8.Tighten the four (4) coin vault hex nuts left loose in Step #6.

9.Reinstall the coin box removed in Step #4.

10.Reinstall the control box removed in Step #3.

11.Reinstall control/lint doors and lint drawers removed in Step #2.

12.Reestablish power to the dryer.

DD. TO REMOVE MAIN DOOR

1.Open main door completely.

2.While holding the door in place, remove the four (4) Phillips head screws securing main door to the front panel hinge.

3.Reinstall the main door by reversing procedure.

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EE. TO INSTALL NEW MAIN DOOR GLASS

1.Remove the main door assembly from the dryer (follow Main Door Removal Procedure inSection DD).

2.Lay main door on flat surface with front of door face down.

3.Apply a narrow bead of silicone (ADC P/N: 170730)ALL around the main door area where the glass will rest.

IMPORTANT: This areamust be completely cleaned for correct bonding.

4. Install the glass onto the door glass adhesive and slightly press glass in place.

IMPORTANT: DO NOT press hard or silicone thickness between the glass and the doorwill be reduced resulting in poor bonding.

5.The door assembly should now be put in an area where itwill not be disturbed for at least 24 hours. Depending on the conditions, the curing time of this adhesive is 24 to 36 hours.

6.After the 24 to 36 hour curing period, reinstall main door onto the dryer.

FF. TO REPLACE MAIN DOOR GASKET

1.Open the main door completely.

2.Remove ALL existing main door gasket material with a putty knife or similar device. Make sure the door surface is as clean as possible.

3.Apply a small bead of adhesive (ADC P/N: 170730)ALL around the main door gasket cavity area.

4.Gently push the gasket in place starting at the left side of the door (near the main door switch).

5.Dryer should be left out of operation for at least 8 hours.

GG. TO REPLACE MAIN DOOR HINGE

1. Discontinue power to the dryer.

2Remove the lint drawer, the control/lint door, the control box, and the front panel from the dryer (follow

Control Box Removal Procedure in Section D).

NOTE: Before removing the front panel from the dryer, remove the main door assembly (followMain Door Removal Procedure inSection DD).

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