ADC AD-464 Service Manual Download Page 9

5

SECTION  II

ROUTINE MAINTENANCE

A.  CLEANING

A 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, an 

ADC

 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 OTHER FLAMMABLE VAPORS and
LIQUIDS.

NOTE: REMOVE

 

POWER

 

FROM

 

THE

 

MACHINE

 

BEFORE

 

PERFORMING

 

ANY

MAINTENANCE

 

IN

 

THE

 

DRYER.

NOTE

: Suggested time intervals shown are for average usage which is considered six (6) to eight (8)

operational (running) hours per day.

SUGGESTED CLEANING SCHEDULE

EVERY THIRD or FOURTH LOAD

Clean the lint screen.  A clogged lint screen will cause poor dryer performance.  The lint screen is located in
the lint drawer in the base of the dryer.  Pull out the lint drawer, brush the lint off the lint screen, and remove
the lint.  Inspect the lint screen and replace if torn.

NOTE

: The frequency of cleaning the lint screens can best be determined from experience at each

location.

WEEKLY

Open the hinged panels on each side of the tumbler section and remove any lint accumulation from the tumbler
drive motor, drive shafts, gear reducer, drive belts, drive wheels, and drive shaft bearings.

Slide the lint basket all the way out of the dryer and clean any lint accumulation off of the temperature sensor
bracket, which is located above the lint basket.

WARNING: TO AVOID THE HAZARD OF ELECTRICAL SHOCK, DISCONTINUE

ELECTRICAL SUPPLY TO THE DRYER.

Summary of Contents for AD-464

Page 1: ...ADCPartNo 450186 020399DMG abe American Dryer Corporation 88 Currant Road Fall River MA02720 4781 Telephone 508 678 9000 Fax 508 678 9447 e mail techsupport amdry com AD 464 Service Manual...

Page 2: ...ed in a prominentlocationnearthedryer American Dryer Corporation products embody advanced concepts in engineering design and safety If this product is properly maintained it will provide many years of...

Page 3: ...DBESUPERVISEDIFNEARDRYERSINOPERATION DRYERSSHOULDNEVERBELEFTUNATTENDEDWHILEINOPERATION CAUTION FOR YOUR SAFETY DONOTDRYMOPHEADSINTHEDRYER DONOTUSEDRYERINTHEPRESENCEOFDRYCLEANINGFUMES WARNING UNDER NO...

Page 4: ...n the equipment and 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 wi...

Page 5: ...upport and Drive System 14 B MainAirBlower HeatReclaimerSystem 16 C Compressed Air System 18 D Safety Devices 22 E Blower Squirrel Cage Fan Motor Assembly 24 F Blower Squirrel Cage Fan Electrical Comp...

Page 6: ...PRINKLER SYSTEM 81 A SprinklerSystemDescription 81 SECTION IX AIR JET SYSTEM 85 A Air Jet System 85 SECTION X STACK VALVEASSEMBLY 86 A PneumaticValve 86 SECTION XI PENDANTASSEMBLY 91 A PendantAssembly...

Page 7: ...SMELL GAS a DO NOT try to light any appliance b DO NOT touch any electrical switch c DO NOT use any phone in your building d Clear the room building or area of ALL occupants e IMMEDIATELY call your g...

Page 8: ...EST EDITION NOTE Failure to do so willVOIDTHEWARRANTY 9 UNDER NO CIRCUMSTANCES should the dryer door switches lint drawer switch or heat safety circuit ever be disabled WARNING PERSONALINJURYor FIRE C...

Page 9: ...TENANCE IN THE DRYER NOTE Suggested time intervals shown are for average usage which is considered six 6 to eight 8 operational running hoursperday SUGGESTED CLEANING SCHEDULE EVERY THIRD or FOURTH LO...

Page 10: ...tioningsupplyhouse Inspect and remove any lint accumulation in customer furnished exhaust duct work system and from the dryers internal exhaust ducting NOTE THEACCUMULATION OFLINT IN THE EXHAUST DUCTW...

Page 11: ...ll plug and add oil Use petroleum based 10 150 SSU misting oil Replace the fill plug NOTE LUBRICATOR SHOULD BE SETAT 1 DROP PER CYCLE NOTE REGULATOR PRESSURE IS TO BE SETAT 80 PSI Apply high temperatu...

Page 12: ...NTS 7 DAYS AFTER INSTALLATION and EVERY 6 MONTHS THEREAFTER Inspect bolts nuts screws bearing set screws nonpermanent gas connections i e unions shut off valves orifices and grounding connections Fan...

Page 13: ...LOAD FRONT TILT 15 UNLOADING HEIGHT FROM FLOOR 43 3 4 111 12 cm LOADING HEIGHT FROM FLOOR 65 5 8 166 69 cm DOOR OPENING 53 1 4 x 49 135 26 cm x 124 46 cm BASKET DIAMETER 69 1 8 175 58 cm BASKET DEPTH...

Page 14: ...OM FLOOR 43 3 4 111 12 cm LOADING HEIGHT FROM FLOOR 65 5 8 166 69 cm DOOR OPENING 53 1 4 x 49 135 26 cm x 124 46 cm BASKET DIAMETER 69 1 8 175 58 cm BASKET DEPTH 80 5 16 203 99 cm BASKET VOLUME 175 cu...

Page 15: ...PRINKLER SERVICE Dryer Nameplate 1 2 3 5 5 Contact factory for information not listed Minimum wire size is 16 AWG Stranded Type Wire for individual lengths less than 100 feet ADS 464 STEAM ELECTRICAL...

Page 16: ...hen the dryer is operating it draws in room air heats it passes this air through the basket tumbler and exhausts it out of the building Therefore the room air must be continually replenished from the...

Page 17: ...DITION as well as local codes and ordinances and must be done by a qualified technician NOTE Undersizedgaspipingwillresultinignitionproblemsandslowdryingandcancreateasafety hazard The dryer must be co...

Page 18: ...letely welded assembly so the perforated panels are not removable 2 Tumbler Support System The tumbler sits on four 4 11 inch diameter heavy duty rubber roller wheels which supports and drives the tum...

Page 19: ...the gear reducer turnbuckle support The oil in each gear reducer must be replaced every six 6 months by 1 4 liters of I S O viscosity Grade 460 gear oil 4 Servicing the Drive System a Removing a Driv...

Page 20: ...HEAT RECLAIMER SYSTEM The fan which moves the exhaust air through the dryer is a 22 inch diameter squirrel cage fan that is driven at 1 100 rpm by a 25 HP motor This fan moves a maximum of 13 000 cfm...

Page 21: ...wn of the load HEAT RECLAIMER SETTINGS Z 1 5 8 Y Z X Y HR Inches Reclaimed 1 1 8 1 2 7 46 1 1 4 2 5 8 1 15 67 2 5 8 3 1 8 1 1 2 25 37 4 1 4 3 5 8 2 34 32 5 3 4 4 1 8 2 1 2 43 28 7 1 4 4 5 8 3 50 74 8...

Page 22: ...r assembly and pneumatic control panel 1 Air Pistons The pistons are actuated by solenoid and flow control valves that are under computer control The pneumatic pistons are used to Tilt the dryer for l...

Page 23: ...ving regulator is designed to automatically relieve overpressure in the secondary side of the regulator NOTE THIS SELF RELIEVING FEATURE IS NOT DESIGNED TO BLEED THE DOWN STREAMPRESSURE Dryer must be...

Page 24: ...either be supplied internally tapped off the 80 PSI air supply connected to port no 1 through holes in the body of the solenoid valve or it can be supplied externally through the 1 8 inch F P T conne...

Page 25: ...d 80 PSI of air is supplied to the bottom port of the piston The piston rod will extend and the door will open No voltage is applied to S2 the coil of the valve that controls the air supply to the doo...

Page 26: ...e dryer is equipped with numerous safety devices to ensure that the dryer operates safely The chart on the following page page 23 lists each device with its location function computer display message...

Page 27: ...console Ensures that the heat reclaimer is either opened or closed Input L E D 13 of the PLC is off NONE Heat Console Door Access Door Switch Inside heat console Ensures that access doors are closed...

Page 28: ...motor 2 Blower Squirrel Cage Fan Motor Component Replacement a Blower Motor Replacement 1 Discontinue electrical service to the dryer 2 Remove the belt guard 3 Mark and identify the wires that will b...

Page 29: ...86 PULLEY REMOVAL 15 Tighten secure the set screws into the bushing 16 Insert the bolts into the large holes on the bushing and thread them into the motor pulley 17 Tighten the bolts evenly for motor...

Page 30: ...lts securing the shrouded pillow block bearings from the blower shaft mount 11 Remove the complete blower shaft assembly with the shrouded pillow block bearings from the dryer 12 To remove the shroude...

Page 31: ...es and tighten evenly for correct pulley installation 17 Reposition the blower motor to its original position a Tighten hand tight only the bolts into the motor and the motor base b Slide the blower m...

Page 32: ...se a Ease off on the tension bolt 4 Slide the blower motor forward 5 Remove and replace V belts NOTE For proper belt replacement the V belts should be replaced in matched sets both belts 6 Tighten sec...

Page 33: ...he initial high current draw by the motor will not trip the overload On the face of the overload there are two 2 push buttons a START Black or Tan 1 and a STOP Red 0 The overload must be in the START...

Page 34: ...w and the other style has a clip In both styles disassembly and assembly is recommended with the thermal magnetic starter TMS in the STOP position a To remove the style that has the screw from the TMS...

Page 35: ...ALL four 4 sets of drive wheels work together to rotate spin the tumbler basket Each motor is connected to the tumbler basket drive shaft by two 2 A type V belts driving a shaft mounted 5 6 to 1 rati...

Page 36: ...sconnect this plug and route through the hole located on the right side of the front panel The rear panel controls disconnect plug is located behind the rear panel controls Disconnect this plug and fe...

Page 37: ...Remove the taper lock bushing and motor pulley a Remove the bolts securing the taper bushing b Insert the bolts into the threaded holes and tighten the bolts evenly for pulley removal c Loosen the se...

Page 38: ...replaced in matched sets both belts 4 Tighten the turnbuckle IMPORTANT DO NOT OVERTIGHTEN V BELTS 5 Reestablish electrical service to the dryer d Taper Lock Bushing and Drive Motor Pulley Replacement...

Page 39: ...r 2 Follow Step 2 thru Step 17 of the Tumbler Basket Drive Wheel Replacement instructions on page 32 and page 33 3 Carefully file the score marks on the drive shaft from the set screws and lightly san...

Page 40: ...ghten evenly to remove the taper lock bushing from the gear speed reducer 6 Repeat Step 5 to remove the other taper lock bushing 7 Slide the drive shaft through the hole in the frame of the tumbler se...

Page 41: ...ng for security of parts and proper alignment 21 Reestablish electrical service to the dryer g Retaining Wheel Replacement 1 Discontinue electrical service to the dryer 2 Remove the front or the rear...

Page 42: ...roper adjustment has been achieved 3 Discontinue electrical service from the dryer 4 Replace the front or the rear loading door panels 5 Reestablish electrical service to the dryer i Drive Shaft Repla...

Page 43: ...AC when the dryer is active When the rotational sensor is off the is an approximate 120 VAC voltage drop WARNING UNDER NO CIRCUMSTANCES SHOULD THE OUTPUT OF THE ROTATIONAL SENSOR BE GROUNDED DAMAGE WI...

Page 44: ...nt Jog basket tumbler for 10 seconds Time the rotational sensor the time is measured from the last time the target tapered rib goes by the rotational sensor and the indicator light on the sensor goes...

Page 45: ...RTD probes are located under the top cover a Intake Temperature Probe Sprinkler Temperature Probe Replacement 1 Discontinue electrical service to the dryer 2 Remove the ten 10 1 4 20 x 1 2 TEK screws...

Page 46: ...igh current draw by the motor will not trip the overload On the face of the overload there are two 2 push buttons a START Black or Tan 1 and a STOP Red 0 The overload must be in the START mode for the...

Page 47: ...s a screw and the other style has a clip In both styles disassembly and assembly is recommended with the thermal magnetic starter TMS in the STOP position a To remove the style that has the screw from...

Page 48: ...e tripped due to excessively high temperature in the dryer If the high limit trips the XBT unit will display HI TEMP FAULT Input 0 4 monitors the gas pressure If a high gas pressure or a low gas press...

Page 49: ...mity switch used to sense that the exhaust probe access door is closed If the door is open the dryer will shut down and a DOOR OPEN message will be displayed via the TSX17 Programmable Logic Controlle...

Page 50: ...ut 6 and Output 7 are used to control the Main Load Door Output 6 controls the load door opens solenoid S1 and Output 7 controls the load door close solenoid S2 Output 8 and Output 9 are used to contr...

Page 51: ...ent in the loop is equal to 022222 mA F 32 4 mA measurement in celsius centigrade is 04 mA C 4 mA Example 200 F 32 168 x 022222 3 73 mA 4 mA 7 73 mA 93 C x 04 mA 3 72 4 mA 7 72 mA The power source for...

Page 52: ...uss terminator from the TSX17 PLC 7 Insert a standard flat head screwdriver into the red or orange tab and push down At the same time lift upward on the TSX17 PLC This will remove the PLC from the rai...

Page 53: ...located directly above the buss terminator on the TSX17 PLC Programmable Logic Controller by sliding the cover in an upward direction NOTE Thelithiumbatteryisattachedtothecoverandpluggedintothemodule...

Page 54: ...dryer NOTE For steam models that do not have the sprinkler option skip Step 4 a Under Voltage Disconnect Replacement 1 Discontinue electrical service to the dryer 2 Mark and remove wires from L1 L2 an...

Page 55: ...annel 3 is used to monitor intake temperature for Gas Models Only The remaining channels are spares that can be used for future expansion a Hi Limit Controller Replacement 1 Discontinue electrical ser...

Page 56: ...that the burner fan air switch has closed The pilot gas flame is then established the flame rod which sits in this pilot flame comes in contact with the flame and signals the BCM The main motorized ga...

Page 57: ...cycle after a burner fan air switch or main flame failure but only if the failure occurs more than 35 seconds after ignition If this switch is OFF the burner will lock out at once Switch 2 Intermitte...

Page 58: ...Inductance is detected on sensor wires Wiring fault on terminals 3 4 and 5 An internal controller failure Air switch closed before start up 5 Flame Signal L E D is lit when The flame rod is in contact...

Page 59: ...plug is energized when the pilot solenoid slave opens igniting the pilot flame The flame rod sits in the pilot flame and sends a 3 volt DC to 11 volt DC signal to the burner controller module when it...

Page 60: ...water column W C because of slight variances in spring tension characteristics range settings and markings are nominal 2 Burner Fan and Motor The combustion air is produced by a 6 1 4 squirrel cage fa...

Page 61: ...ise CW for more gas and counterclockwise CCW for less gas 2 Adjustable Pilot Gas Cock Remove the cap and turn the slotted adjustment screw clockwise WC for less gas and counterclockwise CCW for more g...

Page 62: ...wise CW for less gas and counterclockwise CCW for more gas Retighten the pan head screw when correct gas flow is achieved There is a switch located on the back of the top gas valve that verifies valve...

Page 63: ...from the BCM terminal S1 The flame lets the current flow from the flame rod to ground which is then converted to 3 to 11 volts DC by the BCM The flame signal L E D on the BCM lights up The spark plug...

Page 64: ...ot line shut off open Push in the test and reset button on the cover of the burner controller module BCM This will freeze the ignition sequence when the pilot flame ignites This allows time to examine...

Page 65: ...r Switch The dryer uses a burner air switch on its burner components The differential air pressure is measured by this air switch which is located next to the burner fan motor If the combustion air is...

Page 66: ...ness from the motor 8 Remove the four 4 3 8 16 x 3 4 hex head bolts securing the motor to the combustion air blower housing 9 To install new burner fan motor reverse Step 8 thru Step 2 10 Reestablish...

Page 67: ...to the dryer b Mark L1 L2 L3 and T1 T2 T3 on the wires to the TMS for correct replacements c Set the amp amphere rating on the TMS according to the electrical schematic supplied with the dryer d To re...

Page 68: ...istor Metal Oxide Varistor MOV Replacement 1 Discontinue electrical service to the dryer 2 Loosen the screws marked A1 and A2 on the contactor 3 Verify that no additional wires were inadvertently remo...

Page 69: ...goes through the steam coils heating the air During cool down or if the dryer has reached its set point temperature the damper closes eliminating air from going through the steam coils The heat reclai...

Page 70: ...66...

Page 71: ...laimer base pin 12 Remove the heat reclaimer base pin from the heat reclaimer piston 13 Remove the heat reclaimer piston from the eye bracket 14 To install new heat reclaimer piston reverse Step 13 th...

Page 72: ...be drawn across the steam coils On the cool down cycle the inlet air damper closes and the cool down damper opens This draws fresh air into the tumbler basket section exhausting ALL of the 13 000 cfm...

Page 73: ...to the doors The cable wire rope is attached to the doors with four 4 cable clamp plates The cable clamp plate is secured to the clamp plate with a 5 16 18 x 3 4 bolt and 5 16 lock washer a Door Pisto...

Page 74: ...position prior to disassembly of any parts IMPORTANT FAILURE TO BLOCK THE BOTTOM LOAD DOOR SECURELYIN THE CLOSED POSITION MAYRESULT IN PERSONALINJURY 4 Loosen the turnbuckle so that the cable becomes...

Page 75: ...e cable wire rope around the wire rope thimble G Feed the end of the cable wire rope through the wire rope clamp and tighten H Adjust the turnbuckle to the proper cable wire rope tension 8 To install...

Page 76: ...Loosen and remove the cord grip cap 8 Remove the cord grip 9 To install the new load door closed switch reverse Step 8 thru Step 2 10 Mount the coil spring lever arm in the 1 o clock position NOTE Ve...

Page 77: ...t 1 Discontinue electrical service to the dryer 2 Mark and identify the wires that will be removed for proper reinstallation 3 Remove the wires 4 To remove a contact block loosen and remove the mounti...

Page 78: ...the lens 5 Twist out lens and remove bulb light 6 To install new bulb reverse Step 5 thru Step 2 7 Reestablish electrical service to the dryer i Tilt Switch Replacement 1 Discontinue electrical servic...

Page 79: ...ment 1 Discontinue electrical service to the dryer 2 Remove the base panel from the left hand side of the dryer CAUTION DO NOT PLACE HANDS BETWEEN THE DRYER BASEAND THE TUMBLER Basket SECTION SERIOUS...

Page 80: ...to close proximity of a magnetic field If either of the proximity switches are opened the entire circuit will be open The switch can be checked for failure using an ohm continuity meter power down th...

Page 81: ...ventive maintenance and lint screen cleaning procedures 2 Set correct air pressure setting 3 For a quick check of the air pressure switch wiring perform the following Run a drying cycle Does the air p...

Page 82: ...connector 3 Remove the 5 16 18 x 3 4 tap bolt as well as the 5 16 lock washer 4 Mark and identify the wires that will be removed for proper reinstallation 5 Remove the cord grip from the lint chamber...

Page 83: ...he dryer is equipped with the optional sprinkler system The RTD probe operates as a resister that increases in resistance as temperature increases At 32 F 0 C the RTD probe reads 100 ohms 100 with the...

Page 84: ...80 2 RTD Resistive Temperature Device Locations EXHAUST TEMPERATURE EXHAUST HI LIMIT INTAKE HI LIMIT SPRINKLER MAN4146 OVER BURNER HI LIMIT...

Page 85: ...Thesprinkleraswellasthealarmwillremainonuntilthe amber coloredsprinkler resetbutton is pressed and the temperature in the tumbler basket falls below 700 F 371 11 C 1 Description Of Components a Resist...

Page 86: ...e sprinkler digital temperature controller is a programmable microprocessor computer It is used to monitor temperature via a Resistive Temperature Device RTD NOTE Operating parameters are preset at th...

Page 87: ...for proper reinstallation 6 Remove wire s from terminal block 7 Loosen compression fitting s and remove defective probe s 8 To install new probe s reverse Step 7 thru Step 3 9 Reestablish electrical...

Page 88: ...84...

Page 89: ...er 2 Discontinue electrical service to the dryer 3 Remove the poly flow tubing from the brass tee and the brass cross 4 Remove the stainless steel air jet tubing from the pneumatic solenoid air jet va...

Page 90: ...is used one 1 of the ports may be plugged with a plug port The 28 mm profile bar with 1 8 cylinder ports Blank Station is used as the mounting medium for the solenoid valves Two 2 ports are drilled t...

Page 91: ...the plug 5 Carefully remove the coil mounting screw IMPORTANT TAKE NOTICE small components 6 Note the sequence of the plunger components i e return spring plunger etc 7 Install new coil making sure t...

Page 92: ...Reestablish electrical service to the dryer 10 Reestablish air supply to the dryer 3 Tubing a Tubing Replacement 1 Discontinue air supply to the dryer 2 Discontinue electrical service to the dryer 3...

Page 93: ...89 MAN4223...

Page 94: ...revent both sets of tilting pistons from extending their rods at the same time When the front tilting piston rods are extended 80 PSI air is connected to the bottom piston ports while the top piston p...

Page 95: ...is disabled due to the mechanical interlock with the pendant assembly This feature is used as a safety device to prevent both drive motors from being energized in opposite directions The EMERGENCY ST...

Page 96: ...ADC450186 1 05 27 99 25 2 01 14 00 15...

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