Related Manuals for ADC ML-122
Summary of Contents for ADC ML-122
- Page 1 ML-96 / ML-122 Service Manual American Dryer Corporation 88 Currant Road Fall River MA 02720-4781 USA Telephone: +1 (508) 678-9000 / Fax: +1 (508) 678-9447 e-mail: techsupport@amdry.com www.amdry.com ADC Part No. 450412-4...
- Page 2 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.
-
Page 3: Table Of Contents
Table of Contents _______ IMPORTANT You must disconnect and lockout the electric Important Information ..........4 supply and the gas supply or the steam supply Safety Precautions ..........4 before any covers or guards are removed from the machine to allow access for cleaning, Routine Maintenance .......... -
Page 4: Important Information
If the guidelines in this section Do not use heat for drying articles that contain plastic, are met, an ADC dryer will provide many years of efficient, foam, sponge rubber, or similarly textured rubber trouble free, and –... -
Page 5: Adjustments
Lubrication NOTE: Frequency can best be determined at each location. The drive shaft bearings and idler shaft bearings should be lubricated every 3 months. Use a #3 grease or Daily equivalent. Lubrication is necessary. (Beginning) of each work shift. The motor bearings and under normal/most conditions Clean lint from the drawer and screen. -
Page 6: Electrical And Gas Requirements
CAUTION: Improperly sized or installed Make a complete operational check of all the operating exhaust ductwork can create a potential fire controls to assure that the timing is correct, temperature hazard. selection switches are functioning, etc. Make a complete operational check of all safety-halted Electrical and Gas Requirements circuits: door switches, hi-limit thermostat, sail switch, cycling thermostats, etc. -
Page 7: Gas Burner Assembly
Reversing Relay Panel Lifting the control door will reveal the reversing relay box. Located on the back of the relay box is the reversing relay panel. Included on this panel is a 4-position terminal block, blower overload, blower contactor, reversing contactor, 24 VAC transformer, fuse or circuit breaker, ground lug, and possibly an arc suppressor board. -
Page 8: Drive Shaft Assembly
Drive Shaft Assembly Main Door Switch (Viewing from the front of the dryer) The main door switch is mounted to the front panel behind the main door. When the main door opens, the switch will Behind front panel on the right side of the dryer, you can also open, preventing the dryer from operating. -
Page 9: Servicing
Servicing _____________________________ Temperature Sensor Bracket Introduction This is located inside the dryer in the lint compartment above the lint screen. This bracket consists of 2 devices. All electrical and mechanical service or repairs should be One is a temperature sensor probe and the other is a high made with the electrical power to the dryer disconnected limit thermostat, which is set at 225º... - Page 10 Connect keypad ribbon to the computer. The flame-probe, ignitor probe, and ground rod are all on the same line of axis. Reestablish electrical power to the dryer. There should be a 1/8” gap (+/- 1/32) between the ignitor probe and ground rod. Microprocessor Temperature Do not wrap the red high voltage wire and flame-probe Sensor Probe Replacement...
- Page 11 WARNING: Test all connections for leaks by Ignition Module Replacement brushing on a soapy water solution. Discontinue electrical power to the dryer. NEVER TEST FOR LEAKS WITH A FLAME!!! Remove the wires connected to the terminal strip at the bottom of the module. (Mark correct location of each wire to aid in replacement on new module).
- Page 12 Tumbler Hi-Limit Thermostat Sail Switch Adjustment (225º F [107º C]) Replacement With the dryer operating at a high temperature setting, pull Disconnect electrical power to the dryer. the sail switch away from the burner. The sail switch should open and extinguish the burner. Let the sail switch damper Open lint door.
- Page 13 Steam Coil Replacement WARNING: The 1/2” plug must be closed before Discontinue electrical service to the dryer. attempting to apply any steam pressure. Disconnect compressed air supply from the dryer. Slowly open the return line then slowly open the supply Shut off all steam supply lines and steam return valves line.
- Page 14 Main Door Assembly Replacement IMPORTANT: When pulling the front panel off, the door switch harness in the upper right hand corner must be Open main door. unplugged. Holding the door upward remove the 2 screws from the top hinge block. NOTE: The main door assembly can be removed to make the panel removal easier.
- Page 15 Tumbler Wheel Replacement on Drive Assembly Discontinue electrical power to the dryer. Remove front panel from dryer. (Follow front panel replacement directions on page 14.) Remove the 10 1/4-20 x 1/4” socket button head screws from the perforated basket side. Remove wrapper assembly.
- Page 16 Check the basket drive belt for proper tension. Adjust if necessary. Replace the wrapper panels. Replace the perforated tumbler panel. 1-15/16 (5 cm) Flange Bearing Replacement Disconnect electrical power to the dryer. Remove the 4 bolts securing the bearing cap located in the rear of the dryer.
- Page 17 Refer to basket assembly section page 15 for shaft and basket alignment. V-Belt Adjustment (Motor to Drive Axle) Discontinue electrical power to the dryer. Remove the belt guard cover from the rear of the dryer. Loosen the 4 bolts holding the drive motor mount to the side of the dryer.
-
Page 18: Troubleshooting
Lint Door Switch Replacement No L.E.D. display on microprocessor controller (computer)... Discontinue electrical power to the dryer. Open circuit breaker switch or blown fuse. Remove the lint door panel. (For the ML-122.) Tripped blower motor overload. Remove the front panel. (For the ML-96.) Faulty wiring connection. -
Page 19: Phase 6 Opl System Diagnostics
Phase 6 OPL System Diagnostics ___ Overload for impellor (fan) motor is tripping... IMPORTANT: You must disconnect and lockout the Either an exceptionally low or high voltage supply. electric supply and the gas supply or the steam supply before any covers or guards are removed from the Motor bearing failure. -
Page 20: L.e.d. Display Indicators
bURNER CONTROL FAIL – This routine monitors the ignition ROTATE SENSOR FAIL – Indicates a rotational sensor circuit control’s gas valve output response. If the valve output failure meaning that there is a fault somewhere in the signal is not present from the ignition control within the tumbler rotating circuit, or the Phase 6 OPL microprocessor valve time limits the Phase 6 microprocessor controller controller (computer) program related to this circuit... -
Page 21: Phase 6 Opl Microprocessor Controller (Computer) Relay Output L.e.d. Indicators
L.E.D. Display Indicator Number 4 If the motor is not operating. The fan indicator dot and output L.E.D. are also on, then the problem (fault) is On Indicator: This indicator dot is on whenever a cycle is in elsewhere (i.e., external of the Phase 6 OPL progress. -
Page 22: Phase 7 Opl System Diagnostics
If the dryer is active (running) and the lint door is opened “POWER SUPPLY” Input L.E.D. Indicator the “LINT” L.E.D. indicator will go out and the display will Should be on at all times (even if the dryer is not running). read “LINT dOOR.”... -
Page 23: Input/Output Board L.e.d. Indicators
Information on the Data Label FUSE – (RED L.E.D.): This L.E.D. will indicate the status of Model Number – The model number is an ADC number, the control voltage. which describes the size of the dryer and the type of heat (gas or steam). - Page 24 How to Use a Manometer With dryer in nonoperating mode, remove plug on the gas Notes ________________________________________ valve pressure tap. Attach plastic tubing to pressure tap. Fitting is supplied ______________________________________________ with manometer (refer to illustration). Attach manometer to dryer using magnet. ______________________________________________ NOTE: Place manometer in a position so that readings ______________________________________________...
- Page 25 Notes _____________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ 450412 - 4 www.amdry.com...
- Page 26 ADC Part No. 450412 4 - 01/02/08 - 0...