American Dryer Corp ADG-60 User Manual
ADG-630 Service Manual
24 VAC Phase 5
Dual Microprocessor Controller (DMC)
Mechanical/Electrical
American Dryer Corporation
88 Currant Road
Fall River, MA 02720-4781
Telephone: (508) 678-9000 / Fax: (508) 678-9447
E-mail: techsupport@amdry.com
101598MFM/cj
ADC Part No. 450162
Retain This Manual In A Safe Place For Future Reference
American Dryer Corporation products embody advanced concepts in engineering, design, and safety. If this product is
properly maintained, it will provide many years of safe, efficient, and trouble-free operation.
ONLY qualified technicians should service this equipment.
OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation/operator's manual
included with the dryer.
The following FOR YOUR SAFETY caution must be posted near the dryer in a prominent location.
FOR YOUR SAFETY
Do not store or use gasoline or
other flammable vapors or liquids
in the vicinity of this or any other
appliance.
We have tried to make this manual as complete as possible and hope you will find it useful. ADC reserves the right to make
changes from time to time, without notice or obligation, in prices, specifications, colors, and material, and to change or
discontinue models.
POUR VOTRE SÉCURITÉ
Ne pas entreposer ni utiliser dessence
ni dautres vapeurs ou liquides
inflammables dans le voisinage de cet
appareil ou de yout autre appareil.
Important
For your convenience, log the following information:
DATE OF P URCHASE MODEL NO.
DISTRI BUTORS NAM E
Serial Number(s)
ADG-630
Replacement parts can be obtained from your distributor or the ADC factory. When ordering replacement parts from the
factory, you can FAX your order to ADC at (508) 678-9447 or telephone your orders directly to the ADC Parts Department at
(508) 678-9000. Please specify the dryer model number and serial number in addition to the description and part number, so
that your order is processed accurately and promptly.
The illustrations on the following pages may not depict your particular dryer exactly. The illustrations are a composite of the
various dryer models. Be sure to check the descriptions of the parts thoroughly before ordering.
IMPORTANT NOTE TO 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.
IMPORTANT
YOU 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.
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE
VAPOR AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER
APPLIANCE.
DO NOT DRY MOP HEADS IN THE DRYER.
DO NOT USE DRYER IN THE PRESENCE OF DRY CLEANING FUMES.
CAUTION
DRYERS SHOULD NEVER BE LEFT UNATTENDED WHILE IN
OPERATION.
WARNING
CHILDREN SHOULD NOT BE ALLOWED TO PLAY ON OR NEAR
THE DRYERS.
CHILDREN SHOULD BE SUPERVISED IF NEAR DRYER(S) IN
OPERATION.
WARNING
The dryer must never be operated with any of the back guards, outer tops,
or service panels removed. PERSONAL INJURY or FIRE COULD
RESULT.
IMPORTANT
PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the
equipment or specified in the installation and operator's manual included with
the dryer.
Dryers must not be installed or stored in an area where it will be exposed to
water or weather.
The wiring diagram for the dryer is located in the front electrical control box area.
Table of Contents
SECTION I
Routine Maintenance....................................................................................................................................... 3
A. Cleaning .......................................................................................................................................................... 3
B. Adjustments ..................................................................................................................................................... 4
C. Lubrication ...................................................................................................................................................... 4
SECTION II
Mechanical Section .......................................................................................................................................... 5
A. To Remove Lint Drawer ................................................................................................................................ 5
B. To Remove Control (Middle) or Lint (Lower) Door ....................................................................................... 5
C. To Remove Gas Valve Train Assembly .......................................................................................................... 5
D. To Remove Control Box ................................................................................................................................. 6
E. To Remove Front Panel .................................................................................................................................. 6
F. To Remove and Replace Lint Drawer Switch Assembly ................................................................................ 6
G. To Remove and Replace Sensor Bracket and Components ........................................................................... 7
H. To Remove or Replace Belt ........................................................................................................................... 8
I. To Remove or Replace Motor........................................................................................................................ 10
J. To Remove or Replace Impellor (Fan) .......................................................................................................... 13
K. Belt and Idler Tension Adjustment................................................................................................................ 13
L. Fan Belt and Tension Adjustment.................................................................................................................. 14
M. To Remove Dual Control Microprocessor (DMC) Computer Panel Assembly .......................................... 14
N. To Replace Dual Control Microprocessor (DMC) Computer ...................................................................... 14
O. To Replace Touchpad (Keypad)................................................................................................................... 15
P. To Replace Coin Acceptor ............................................................................................................................ 15
Q. To Replace either Motor Relay .................................................................................................................... 16
R. Basket (Tumbler) Alignment - Vertical ......................................................................................................... 16
S. Basket (Tumbler) Alignment - Lateral .......................................................................................................... 17
T. To Replace Basket (Tumbler) or Basket (Tumbler) Support ........................................................................ 18
U. To Replace Basket (Tumbler) Support Pillow Block Bearing ...................................................................... 20
V. To Replace Basket (Tumbler) Support Flange Bearing ................................................................................ 22
W. To Replace 330º F (burner) Hi-Limit Switch (thermostat)........................................................................... 23
X. To Replace Sail Switch ................................................................................................................................. 24
Y. To Replace Main Door Switch...................................................................................................................... 24
Z. To Replace Direct Spark Ignition (DSI) Module .......................................................................................... 24
AA. To Replace Ignitor and Probe .................................................................................................................... 25
BB. To Replace Gas Valve................................................................................................................................ 25
CC. To Convert Dryer from Natural Gas to Liquid Propane (L.P.) Gas ......................................................... 25
DD. To Replace Coin Vault ............................................................................................................................... 26
EE. To Remove Main Door ............................................................................................................................... 27
FF. To Install New Main Door Glass ................................................................................................................. 27
GG. To Replace Main Door Gasket ................................................................................................................... 27
HH. To Replace Main Door Hinge ................................................................................................................... 27
SECTION III
Troubleshooting .............................................................................................................................................. 28
SECTION IV
Electrical Troubleshooting ............................................................................................................................ 34
SECTION V
Technical Information .................................................................................................................................... 39
A. Data Label .................................................................................................................................................... 39
B. Using Manometer ......................................................................................................................................... 40
C. L.E.D. Display Codes ................................................................................................................................... 41
SECTION VI
Phase 5 (L.E.D. Display) Failure Codes ..................................................................................................... 43
A. Diagnostic (L.E.D. Display) Failure Codes .................................................................................................. 43
B. L.E.D. Display Indicators (DOT) ................................................................................................................. 44
C. Phase 5 DMC (Computer) Relay Output L.E.D. Indicators ........................................................................44
D. Phase 5 DMC (Computer) Input and Output L.E.D. Indicators .................................................................. 45
E. Phase 5 Microprocessor Controller Programming Limits ............................................................................. 46
SECTION I
ROUTINE MAINTENANCE
A. Cleaning
A program or schedule should be established for periodic inspection, cleaning, and removal of lint from various
areas of the dryer, as well as, throughout the duct work system. The frequency of cleaning can best be
determined from experience at each location. Maximum operating efficiency is dependent upon proper air
circulation. The accumulation of lint can restrict this air flow. If the guidelines in this section are met, your new
dryer will provide many years of efficient, trouble-free, and - most importantly - safe operation.
WARNING: LINT FROM MOST FABRICS IS HIGHLY COMBUSTIBLE. THE
ACCUMULATION OF LINT CAN CREATE A POTENTIAL FIRE
HAZARD.
WARNING: KEEP DRYER AREA CLEAR AND FREE FROM COMBUSTIBLE
MATERIALS, GASOLINE, AND FLAMMABLE VAPORS AND LIQUIDS.
NOTE: SUGGESTED TIME INTERVALS SHOWN ARE FOR AVERAGE USAGE WHICH IS
CONSIDERED SIX (6) TO EIGHT (8) OPERATIONAL RUNNING HOURS PER DAY.
DAILY (beginning of each work shift)
Clean lint from basket and tumbler.
Inspect lint screen and drawer for damage and replace it if torn.
WEEKLY
Clean lint accumulation from around microprocessor temperature sensor probes and sensor bracket
assemblies.
90 DAYS
Remove lint from air vents and surrounding area.
IMPORTANT: Lint accumulation will restrict the air flow over the motor, causing overheating
and irreparable motor damage. Motor failure due to lint accumulation will
VOID THE WARRANTY.
Remove lint accumulation from around the openings in the dryer's back panels.
Remove lint from gas valve burner train area with a dusting brush or vacuum cleaner attachment.
3
Remove any lint accumulation from coin acceptor, including the optical switch.
Inspect and remove lint accumulation in customer-furnished exhaust duct work system and from
the dryer's internal exhaust ducting.
WARNING: THE ACCUMULATION OF LINT IN THE EXHAUST DUCT WORK
CAN CREATE A POTENTIAL FIRE HAZARD.
6 MONTHS
In the cleaning of the dryer cabinet, avoid using harsh abrasives. A product for the cleaning of appliances is
recommended.
B. Adjustments
Seven (7) Days After Installation and Every 6 Months Thereafter
Inspect bolts, nuts, screws (bearing set screws), nonpermanent gas connections (unions, shut-off
valves, orifices, etc..), electrical terminations, and grounding connections.
The 12-Rib 95" (J) poly belt arrangement should be examined. A cracked or seriously frayed belt
should be replaced. Tighten loose belts when necessary and check the alignment.
Complete operational check of controls and valves.
Complete operational check of all safety devices (door switches, lint compartment switches, sail
switches, burner and hi-limit thermostats.
C. Lubrication
The motor bearings, idler bearings and tumbler bearings are permanently lubricated. No lubrication
is necessary.
4
SECTION II
MECHANICAL SECTION
A. To Remove Lint Drawer
1. Pull out lint drawer three quarters of the way (approximately twenty inches).
2. Reach up into the back of the lint drawer and pull down the retainer (hinge) that is attached to the top of the
lint drawer.
3. The lint drawer can now be removed.
4. Reverse procedure for reinstalling the lint drawer.
B. To remove control (middle) or lint (lower) door
1. Pull out lint drawer three quarters of the way (approximately twenty (20) inches). Reach into the back of the
lint drawer and push down the retainer (hinge) that is attached to the top of the lint drawer.
2. Pull out the lint drawer.
3. Open the control and lint door (2) 1/4 turn locks, one (1) on each side.
4. Remove the control and lint door.
5. Reverse procedure for reinstalling the control and lint door.
C. To remove gas valve train assembly
1. Discontinue power to the dryer.
2. Close all gas shut-off valves in the gas supply line to the dryer.
3. Remove the lint drawer and the control and lint door from the dryer. Follow lint drawer and control and lint
door removal procedures in section A and B.
4. Close the union shut-off valve at inlet area of the gas valve.
5. Loosen the union shut-off valve collar nut all the way.
6. Pull out gas valve train assembly 1/4 of the way. Disconnect the gas harness power connector at the top of
the assembly.
7. Gently pull and remove the gas valve train assembly.
IMPORTANT: When removing the gas valve train assembly be careful not to snag or damage the gas
valve train wiring disconnected in step 6.
8. Reverse procedure for reinstalling the gas valve train assembly.
NOTE: Be sure to open all gas shut-off valves closed prior to removing the gas valve train assembly.
9. Reestablish power to the dryer.
5
D. To Remove Control Box
1. Discontinue power to the dryer.
2. Remove the lint drawer and the control door from the dryer. Follow lint drawer, and control
and lint door removal procedures in sections A and B.
3. Remove screw located on the bottom right-hand corner of the control panel.
4. Slide out the control box and hang the control box assembly on hinges located on the right side
panel, and disconnect the three (3) wiring harnesses (connectors) at the back of the control
box.
5. The control box may now be taken out of the dryer completely or depending on the service
function to be performed, the box can be attached to the two (2) female hinges on the right side
of the dryer cabinet.
NOTE: If the control box is attached to the dryer cabinet, the three (3) wiring harnesses men-
tioned in step #4 do not need to be disconnected.
6. Reverse procedure for reinstalling the control box assembly.
7. Reestablish power to the dryer.
E. To Remove Front Panel
1. Discontinue power to the dryer.
2. Remove the control box assembly. Follow control box removal procedure in section D.
3. If the bottom front panel is being removed, the lower lint door must also be removed.
4. Disconnect the door switch connector from the lint drawer switch box assembly located under the basket.
NOTE: There are two (2) harnesses that connect to the lint drawer switch box. Locate and
disconnect the one that leads to the front panel.
5. Pull up the two (2) metal fingers where the door switch harness is secured to the frame and
right side panel of the dryer.
6. Remove all nine (9) screws from the front panel. There are four (4) on the left and right sides, and one (1)
at the bottom of the panel behind the control door.
7. Gently remove the front panel assembly from dryer.
8. Reverse procedure for reinstalling front panel assembly.
9. Reestablish power to the dryer.
F. To Remove and Replace Lint Drawer Switch Assembly
1. Discontinue power to the dryer.
2. Remove the lint drawer, and the control and lint door from the dryer. Follow lint drawer, and control and lint
door removal procedures in sections A and B.
3. If top basket (tumbler) is being serviced, remove the control box assembly. Follow control box removal
procedure in section D.
6
4. To remove the lint drawer switch box assembly, remove the two (2) screws inside the lint drawer area that
secure the box to the side of the lint coop.
5. Disassemble lint drawer box assembly from the dryer by disconnecting the two (2) harness connectors from
the box assembly.
6. Remove the two (2) phillips head screws securing the cover to the switch mounting bracket.
7. Disassemble the switch from the box by removing the two (2) slotted head screws securing the switch to the
bracket and disconnect the terminals from the switch.
8. Reverse procedure for reinstalling the lint drawer switch assembly.
9. Reestablish power to the dryer.
G. To Remove and Replace Sensor Bracket and Components
1. Discontinue power to the dryer.
2. Remove the lint drawer, and the control and lint door from the dryer. Follow lint drawer, and control and lint
door removal procedures in sections A and B.
3. Pull the front of the sensor bracket forward to remove it from the "S" clips. Pivot bracket downward and
assembly will separate from the sensor bracket holder.
4. To disassemble bracket assembly from dryer, disconnect the two (2) harness connectors.
5. To remove the temperature sensor and the connecting harness with its connectors:
A. Disassemble microprocessor sensor probe from the bracket by removing the 1/4" push-on
fastener from the outside of the bracket.
B. Remove harness connectors by squeezing sides and pushing towards the center of the
bracket.
C. Disconnect the two (2) wires from the 170º thermostat.
D. Reverse procedure for installing new sensor probe assembly.
6. To replace the 170º thermostat:
A. Remove the two (2) slotted head screws, washers, and nuts securing the 170º thermostat at
the bracket assembly.
B. Reverse procedure for installing new 170º thermostat.
7
7. Reverse procedure for reinstalling power to the dryer.
IMPORTANT: When reinstalling the sensor bracket assembly to the dryer, be sure the internal wires do
not get pinched between the sensor bracket and the holder.
8. Reestablish power to the dryer.
H. To Remove or Replace Belt
1. Discontinue power to the dryer.
2. Remove the lint drawer and the control and lint door from dryer.
3. If top basket (tumbler) is being serviced, remove control box assembly and belt guard from idler arm. Follow
control box remove procedure in sections A and B.
4. Remove panel from basket (tumbler) being serviced. Follow from panel removal procedure in section E.
5. Loosen the tension on the idler arm adjusting spring by loosening the two (2) 9/16" nuts on the spade bolt.
6. Remove the motor pulley from the shaft. This can be done by rolling the fan belt off the pulley. Then loosen
the set screw of the motor pulley and slide the pulley off the shaft.
7. Slide belt off the idler bracket and motor shaft.
8. Push belt up into basket (tumbler) area through the brushes and opening in the wrapper.
9. Remove the belt by maneuvering it back and forth and sliding it forward with your hands up through the lint
drawer area.
10. The belt will come out from the front of the dryer between the basket (tumbler) and the wrapper.
11. Reverse procedure for installing new belt.
IMPORTANT: Be sure to set proper belt tension at idler adjustment. Follow belt and idler tension adjust-
ment procedure in section K.
12. Reestablish power to the dryer.
8
LOCTITE
LOCTITE® is being used on ALL small dryers (AD-15 through 81 including stack dryers) that are manufactured
by ADC. LOCTITE® is being applied to ALL bearing set screws, used on ALL basket (tumbler) shafts, ALL
idler shafts, ALL impeller (fan and blower) shafts, and ALL drive shaft bearings.
IMPORTANT
LOCTITE® ADHESIVE HAS BEEN USED
TO SECURE SET SCREWS AND BEARINGS
IN PLACE, ONCE SET SCREWS HAVE BEEN
REMOVED, A GEAR PULLER MA Y BE NECESSAR Y
TO REMOVE BEARING T O AVOID DAMAGE.
®
P/N 112801
One (1) of these labels is attached to each Basket (tumbler) Bearing Assembly (pillow block bearing box). On
the ADG-630 dryer this label is affixed near the small Impeller (fan) Shaft Bearing.
Should readjustments or removal of set screws become necessary in the field and the process becomes difficult,
apply heat to the set screw with a soldering gun (450º F) for a few minutes.
IMPORTANT: Readjustment and removal of the Impellor (fan) Shaft bearings using
Green LOCTITE® (#609) require that the bearing itself be heated.
In lieu of heating, ADC recommends the replacement of these assemblies
in order to provide a true fit and avoid any warpage upon reinstallation.
NOTE: The application of LOCTITE® during the dryer manufacturing process
does not preclude the recommended six (6) month interval that ADC
advises for periodically checking ALL set screws within the dryer.
9
I. To Remove or Replace Motor
1. Discontinue power to the dryer.
2. Remove the lint drawer and the control door from the dryer. Follow control and lint door removal procedures
in sections A and B.
3. If top basket (tumbler) is being serviced, remove the control box from the dryer. Follow control box removal
procedure in section D.
4. Remove the two (2) 9/16" (O.D.) nuts that are on the idler tension spade bolt.
5. Remove the motor pulley from the shaft. This can be done by rolling the fan belt off the pulley. Then loosen
the set screw of the motor pulley and slide the pulley off the shaft.
6. Remove drive belt from motor shaft.
7. Remove the two (2) bolts, lock washers, and washers in front of the motor mount.
8. Remove the lower 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.
9. Remove the four (4) 7/16" (O.D.) nuts which secure the impellor (fan) cover to the blower housing.
10. Remove the two (2) 7/16" (O.D.) nuts and lock washers which secure the impellor (fan) and shaft bearing
to the impellor (fan) housing cover.
11. Loosen the two (2) set screws on the impellor (fan) and shaft bearing.
12. Remove the impellor (fan) and shaft bearing from the shaft. To do so, wedge a slotted screwdriver blade
between the bearing and impellor (fan) cover and walk bearing back off shaft. The impellor (fan) cover
will now separate from the blower (impellor and fan) housing.
13. Remove impellor (fan) lock nut (left hand) and lock washer securing impellor (fan) to fan shaft. This
can be done by turning the lock nut to the left with an adjustable wrench, or more advisable, with a 1-1/8"
deep socket ratchet wrench in an effort to avoid damaging the lock nut.
14. Align impellor (fan) to the center of the blower housing hole and remove impellor (fan) by grasping fan with
both hands and pulling outward. The key will also come off the motor shaft in this procedure.
15. Return to the front of the dryer and disconnect the wiring harness from the motor.
16. Remove the motor through the front of the dryer take motor mount off motor (4 nuts, washers, lock wash-
ers).
NOTE: When replacing the motor use P/N 881599. This will come with a keyed motor shaft and a new
pulley to accommodate the keyed shaft.
17. Reconnect the wiring harness disconnected from the motor in step 15
18. Insert key into the motor shaft removed in step 14, line up keyway in impellor (fan) with key in the shaft
and slide impellor (fan) all the way onto shaft.
.
19. Reinstall the lock washer and lock nut (right hand) removed in step 13 and tighten securely.
20. Reassemble the impellor and shaft bearing to the impellor (fan) cover and secure (hand tighten only) with
the two (2) nuts removed in step 10. Install the housing cover and bearing assembly onto the shaft and
housing. Secure the two (2) set screws on the impellor (fan) and shaft bearing. Be sure that these set
screws are securely in place.
10
20. Reassemble the impellor and shaft bearing to the impellor (fan) cover and secure (hand tighten only) with
the two (2) nuts removed in step 10. Install the housing cover and bearing assembly onto the shaft and
housing secure with four (4) nuts removed in step 9. Secure the two (2) set screws on the impellor (fan)
and shaft bearing be sure that these set screws are securely in place.
20. Reassemble the impellor and shaft bearing to the impellor (fan) cover and secure (hand tighten only) with
the two (2) nuts removed in step 10. Install the housing cover and bearing assembly onto the shaft and
housing secure with the four (4) nuts removed in step 9. Secure the two (2) set screws on the impellor (fan)
and shaft bearing be sure that these set screws are securely in place.
21. The impellor (fan) must now be adjusted or centered in the blower housing align the center of the motor
shaft (at impellor [fan] or shaft bearing) so that the center of the motor shaft is exactly eight (8) inches from
the left side panel.
A. Once the impellor (fan) is properly centered tighten the two (2) nuts of the impellor and shaft
bearing that were hand tightened in step 20.
IMPORTANT: Failure to have the impellor (fan) properly aligned can resulted in the impellor (fan) being
damaged.
22. Reinstall the lower half of the rear split back guard panel removed in step 8.
23. Replace the two (2) bolts, lock washers, and washers removed in step 7. Tighten bolts.
24. Assemble the two (2) 9/16" (O.D.) nuts onto idler tension spade bolt removed in step 4. Do not tighten
these two (2) 9/16" nuts at this time.
25. Reconnect drive belt and motor pulley with fan belt and then make necessary belt tension adjustments.
Follow belt and idler tension adjustment procedure in section K.
26. Make necessary impellor belt adjustments by tightening or loosening the 5/16" HEX head machine bolt on
the side of the impellor bearing mount. Before making this adjustment the two (2) bolts in step 23 must be
loose. Retighten these bolts after proper alignment and tension adjustment is made for the belt impellor.
27. Reverse steps 1 through 3.
11
LOCTITE
LOCTITE® is being used on ALL small dryers (AD-15 through AD-81 including stack dryers) that are manufactured by ADC. LOCTITE® is being applied to ALL bearing set screws, used on ALL basket (tumbler)
shafts, ALL idler shafts, ALL impellor (fan and blower) shafts, and ALL drive shaft bearings.
IMPORTANT
LOCTITE® ADHESIVE HAS BEEN USED
TO SECURE SET SCREWS AND BEARINGS
IN PLACE, ONCE SET SCREWS HAVE BEEN
REMOVED, A GEAR PULLER MA Y BE NECESSAR Y
TO REMOVE BEARING T O AVOID DAMAGE.
P/N 112801
One (1) of these labels is attached to each Basket (tumbler) Bearing Assembly (pillow block bearing box). On
the ADG-630 dryer this label is affixed near the small Impellor (fan) Shaft Bearing.
®
Should readjustments or removal of set screws become necessary in the field and the process
becomes difficult, apply heat to the set screw with a soldering gun (450º F) for a few minutes.
IMPORTANT: Readjustment and removal of the Impellor (fan) Shaft bearings using
Green LOCTITE® (#609) require that the bearing itself be heated.
In lieu of heating, ADC recommends the replacement of these assemblies
in order to provide a true fit and avoid any warpage upon reinstallation.
NOTE: The application of LOCTITE® during the dryer manufacturing process
does not preclude the recommended six (6) month interval that ADC
advises for periodically checking
ALL set screws within the dryer.
12
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