Alliance Laundry Systems AT120FG, SC120FG, DT120FG, JT120FG, ST120FG Service Manual

...

Download

Page 1

Drying Tumblers

120 Pound Capacity

Refer to Page 5 for Model Numbers

LOAD READY

LOW

AIR FLOW

H I G

L O

M E D

I U M

NON

REV

TEMPERATURE

REV

PUSH

PUSH TO

COOLING

COOLING START

START

DRYING

60 0

0 30

10 20

Service

www.comlaundry.com

T021C

Part No. M412982R1

April 2002

Page 2

Section 1 – Safety Information

Locating An Authorized Service Person .................4

Section 2 – Introduction

Model Identification ................................................5

Customer Service ....................................................6

Serial Plate Location ...............................................6

Safety Warnings and Decals ...................................7

Safety Precautions for Servicing Tumblers ............7

Section 3 – Troubleshooting

1. Motor Does Not Start .......................................9

2. Motor Overload Protector Cycles Repeatedly ... 10

3. Motor Runs But Cylinder Does Not Turn. .....10

4. Motor Does Not Stop .....................................10

5. Gas Burner Does Not Ignite ...........................11

6. Burner Ignites And Goes Out Repeatedly .....12

7. Burner Shuts off Prematurely ........................12

8. Burner Repeatedly Cycles Off On High

Limit Thermostat ............................................13

9. Steam Valve or Burner Does Not Shut-off ...13

10. Clothes Do Not Dry .......................................14

11. Tumbler Overheating .....................................14

12. Burners Not Burning Properly - Gas Models 15

13. Loading Door Opens During Operation ........15

14. Tumbler Runs But No Steam To Coils

- Steam Models ..............................................15

15. Water In Steam Line - Steam Models ............16

16. Tumbler Will Not Start, Time On Drying

Timer, Door Closed ........................................17

17. Motor Runs But Will Not Heat ......................18

18. Cylinder Turns, But Will Not Heat ................19

Section 4 – Grounding

19. Grounding Instructions ..................................21

Section 5 – Service Procedures

20. Access Panel/Control Box .............................23

21. Loading Door Assembly ................................23

22. Loading Door Hinge Brackets .......................23

23. Loading Door Hinges .....................................24

24. Loading Door Handle ....................................24

25. Front Panel .....................................................25

26. Loading Door Switch .....................................26

27. Push-to-start Switch .......................................26

28. Cooling And Drying Run Lights ...................26

29. Relay ..............................................................26

30. Cooling and Drying Timers ...........................27

31. Reversing/Nonreversing Switch ....................28

32. Control Thermostat ........................................28

33. Micro control .................................................29

34. Emergency Stop Button - DC, JC and SC

Models ............................................................31

35. Ignition Reset Switch - DC, JC and SC

Gas Models ....................................................31

36. Fuse Holder ....................................................31

37. Signal Buzzer .................................................31

38. Gas Valve .......................................................33

39. Igniter .............................................................33

40. Ignition Control ..............................................33

41. Burner Tube ...................................................33

42. Stove High Limit Thermostat ........................34

43. Cabinet High Limit Thermostat/ Load Ready

Thermostat .....................................................34

44. Steam Coils ....................................................35

45. Airflow Switch ...............................................35

46. Drive Guard Cover .........................................36

47. Cylinder Belt ..................................................37

48. Drive Belt .......................................................38

49. Step Pulley Assembly ....................................38

50. Cylinder Sheave .............................................38

51. Motor Pulley ..................................................39

52. Jackshaft Assembly ........................................39

53. Cylinder Assembly ........................................39

54. Trunnion Bearings .........................................40

55. Fan Motor And Fan Assembly .......................41

56. Fan .................................................................41

57. Trunnion Shaft Assembly ..............................42

58. Cylinder Drive Motor ....................................43

59. Reversing Timer ............................................44

60. Reversing Contactor ......................................44

61. Fan Motor Contactor ......................................44

62. Transformer ...................................................44

(continued)

the expressed written consent of the publisher.

M412982 1

Page 3

Section 6 – Adjustments

63. Leveling .........................................................47

64. Main Gas Burner Air Inlet Shutters ...............48

65. Airflow Switch ...............................................49

66. Loading Door Switch .....................................49

67. Loading Door Strike ......................................49

68. Drive Belt Tension .........................................50

69. Cylinder Belt ..................................................51

Section 7 – Wiring Schematics .........................55

AT, DT, JT and ST Manual Timer Models

208-230 VAC, 60 Hertz, 3 Phase Gas .............56

380-415 VAC, 50 Hertz, 3 Phase Gas .............57

460 VAC, 60 Hertz, 3 Phase Gas ....................58

208-230 VAC, 60 Hertz, 3 Phase Steam ..........59

380-415 VAC, 50 Hertz, 3 Phase Steam ..........60

460 VAC, 60 Hertz, 3 Phase Steam..................61

DC, JC and SC Manual Timer Models

380-415 VAC, 50 Hertz, 3 Phase Gas .............62

380-415 VAC, 50 Hertz, 3 Phase Steam .........63

Micro Control MM Models

208-240 VAC, 60 Hertz, 3 Phase Gas ..............64

480 VAC, 60 Hertz, 3 Phase Gas .....................65

208-240 VAC, 60 Hertz, 3 Phase Steam ..........66

480 VAC, 60 Hertz, 3 Phase Steam..................67

AT, DT, JT and ST Micro Control OM Models

208-230 VAC, 60 Hertz, 3 Phase Gas ..............68

380-415 VAC, 50 Hertz, 3 Phase Gas .............69

460-480 VAC, 60 Hertz, 3 Phase Gas .............70

208-230 VAC, 60 Hertz, 3 Phase Steam ..........71

380-415 VAC, 50 Hertz, 3 Phase Steam .........72

460-480 VAC, 60 Hertz, 3 Phase Steam .........73

DC, JC and SC Micro Control OM Models

380-415 VAC, 50 Hertz, 3 Phase Gas .............74

380-415 VAC, 50 Hertz, 3 Phase Steam .........75

2 M412982

Page 4

Section 1

Safety Information

Throughout this manual and on machine decals, you will find precautionary statements (i.e. “CAUTION,” “WARNING,” and “DANGER”) followed by specific instructions. These precautions are intended for the personal safety of the operator, user, servicer, and those maintaining the machine.

a DANGER

Danger indicates the presence of a hazard that will cause severe personal injury, death or substantial property damage if the danger is ignored.

a WARNING

Warning indicates the presence of a hazard that can cause severe personal injury, death or substantial property damage if the warning is ignored.

a CAUTION

Caution indicates the presence of a hazard that will or can cause minor personal injury or property damage if the caution is ignored.

Additional precautionary statements (i.e. “IMPORTANT” and “NOTE”) are followed by specific instructions.

IMPORTANT

The word “IMPORTANT” is used to inform the reader of specific procedures where minor machine damage will occur if the procedure is not followed.

NOTE

The word “NOTE” is used to communicate installation, operation, maintenance or servicing information that is important but not hazard related.

In the interest of safety, some general precautions relating to the operation of this machine follow.

WARNING

• Failure to install, maintain and/or operate this product according to the manufacturer’s instructions may result in conditions which can produce serious injury, death and/or property damage.

• Do not repair or replace any part of the product or attempt any servicing unless specifically recommended or published in this Service Manual and that you understand and have the skills to carry out.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the product is properly grounded and to reduce the risk of fire, electric shock, serious injury or death.

W006R1

M412982 3

Page 5

Section 1 Safety Information

IMPORTANT INFORMATION: During the lifetime of your tumbler, it may require service. The information contained in this manual was written and is intended for use by qualified service technicians who are familiar with the safety procedures required in the repair of your tumbler, and who are equipped with the proper tools and testing equipment.

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W240

WARNING

Repairs that are made to your products by unqualified persons can result in hazards due to improper assembly or adjustments subjecting you, or the inexperienced person making such repairs, to the risk of serious injury, electrical shock or death.

W007

CAUTION

If you or an unqualified person perform service on your product, you must assume the responsibility for any personal injury or property damage which may result. The manufacturer will not be responsible for any injury or property damage arising from improper service and/or service procedures.

NOTE: The WARNING and IMPORTANT instructions appearing in this manual are not meant to cover all possible conditions and situations that may occur. It must be understood that common sense, caution and carefulness are factors which CANNOT be built into this tumbler. These factors MUST BE supplied by the person(s) installing, maintaining or operating the tumbler.

Always contact your dealer, distributor, service agent or the manufacturer on any problems or conditions you do not understand.

Locating An Authorized Service Person

Alliance Laundry Systems is not responsible for personal injury or property damage resulting from improper service. Review all service information before beginning repairs.

Warranty service must be performed by an authorized technician, using authorized factory parts. If service is required after the warranty expires, Alliance Laundry Systems also recommends contacting an authorized technician and using authorized factory parts.

W008

4 M412982

Page 6

Section 2

Introduction

Model Identification

Information in this manual is applicable to these models:

Gas Steam/Thermal Oil

AT120FG DC120FG DT120FG

JC120FG

JT120FG SC120FG ST120FG

AT120CSH DC120CSH DT120CSH

JC120CSH JT120CSH

SC120AT

SC120CSH

ST120AT

ST120CSH

M412982 5

Page 7

Section 2 Introduction

Customer Service

If literature or replacement parts are required, contact the source from whom the machine was purchased or contact Alliance Laundry Systems at (920) 748-3950 for the name and address of the nearest authorized parts distributor.

For technical assistance, call (920) 748-3121.

Serial Plate Location

When calling or writing about your product, be sure to mention model and serial numbers. Model and serial numbers are located on serial plate as shown.

SERIAL

PLATE

JUNCTION BOX

COVER

TMB1497S

6 M412982

Page 8

Safety Warnings and Decals

SAFETY WARNINGS and decals have been provided in key locations to remind you of important precautions for the safe operation and maintenance of your tumbler. Please take the time to review these warnings before proceeding with service work.

All decals have been designed and applied to withstand washing and cleaning. Decals should be checked periodically to be sure they have not been damaged, removed, or painted. Refer to the Parts Manual for ordering replacement decals.

Safety Precautions for Servicing Tumblers

• Disconnect electrical service.

• Shut off supply gas valve before servicing gas

components.

Section 2 Introduction

• Access panel MUST be reinstalled after inspection or servicing of tumbler is completed.

• Use a non-corrosive leak detecting compound to check all pipe connections for gas leaks. DO NOT USE AN OPEN FLAME TO CHECK FOR GAS LEAKS!

• Belt guard MUST be reinstalled after inspection or servicing of tumbler is completed.

• Contactor box cover MUST be reinstalled after inspection or servicing of electric and/or reversing tumbler is completed.

• Loading door switch MUST be operational before putting tumbler into service.

• Junction box cover MUST be reinstalled after inspection or servicing of tumbler is completed.

M412982 7

Page 9

Section 3

Troubleshooting

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

IMPORTANT: Refer to appropriate wiring diagram for aid in testing tumbler components.

1. MOTOR DOES NOT START

POSSIBLE CAUSE TO CORRECT

Electrical power off, blown control fuse or circuit breaker tripped.

Inoperative transformer. • Replace transformer. Loading door not closed or inoperative door switch. • Close door or test switch and replace if inoperative. Door switch improperly adjusted. • Refer to Adjustment Section in manual for door switch

Trunnion bearings binding. • Replace trunnion bearings. Start circuit not completed. • Press start switch or test switch and replace if inoperative. Idler bearings binding. • Replace bearings. Inoperative motor. • Have motor tested and replace if inoperative. Inoperative relay. • Replace relay. Timer improperly set. • Turn drying timer clockwise to desired setting. Inoperative timer. • Test timer and replace if inoperative. Broken, loose or incorrect wiring. • Refer to wiring diagram located on back of tumbler or in

• Check service to tumbler.

adjustment.

literature packet.

W002

M412982 9

Page 10

Section 3 Troubleshooting

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

2. MOTOR OVERLOAD PROTECTOR CYCLES REPEATEDLY

POSSIBLE CAUSE TO CORRECT

Incorrect voltage. • Refer to Installation Manual (supplied with tumbler) for

electrical requirements.

Clothes load too large. • Remove part of load. Cylinder binding. • Check cylinder for binding. Refer to Adjustment Section

in this manual for cylinder adjustment.

Inadequate wiring. • Check with local power company to ensure that wiring is

adequate.

Inadequate make-up air. • Refer to Installation Manual (supplied with tumbler) for

make-up air requirements. Poor housekeeping. • Clean lint accumulation on and around the motor. Broken, loose or incorrect wiring. • Refer to wiring diagram located on back of tumbler or in

literature packet.

W002

3. MOTOR RUNS BUT CYLINDER DOES NOT TURN.

POSSIBLE CAUSE TO CORRECT

Motor drive pulley loose. • Tighten drive pulley bushing screws. Broken or loose cylinder belts. • Replace or adjust belts. Broken or loose drive belt. • Replace or adjust belt. Cylinder binding. • Check cylinder for binding. Refer to Adjustment Section

in this manual for proper cylinder adjustment.

4. MOTOR DOES NOT STOP

POSSIBLE CAUSE TO CORRECT

Inoperative door switch or switch is out-ofadjustment.

• Test switch and replace if inoperative. Refer to

Adjustment Section in this manual for proper switch

adjustment. Inoperative timer. • Test timer and replace if inoperative. Incorrect wiring. • Refer to wiring diagram located on back of tumbler or in

literature packet. Inoperative motor contactor. • Test motor contactor and replace if inoperative.

10 M412982

Page 11

Section 3 Troubleshooting

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

5. GAS BURNER DOES NOT IGNITE

POSSIBLE CAUSE TO CORRECT

Improper or inadequate exhaust system. • Refer to the Installation Manual (supplied with tumbler)

for exhaust system requirements. Drying timer not selected or inoperative. • Set drying timer or replace if inoperative. Inoperative thermostat. • Test thermostat and replace if inoperative. Insufficient gas supply. • Open partially closed gas shut-off valve, or correct low

gas pressure. Check manifold pressure and adjust to

pressure specified on serial plate. If pressure cannot be

obtained, have gas supplier check main pressure. Incorrect orifices. • Tumbler is equipped for type of gas specified on serial

plate. If orifices are different from that specified on serial

plate, obtain and install proper orifices. Inoperative igniter. • Test igniter and replace if inoperative. Inoperative igniter control. • Test igniter control and replace if inoperative. Inoperative gas valve coils. • Test coils and replace complete gas valve if inoperative. Lint buildup. • Clean lint compartment after every eight-hour shift.

Check back draft damper for lint accumulation. Check

ductwork for lint build-up. Inadequate ductwork and make-up air. • Refer to Installation Manual (supplied with tumbler) to

ensure that ductwork and make-up air openings are sized

properly. Inoperative airflow switch. • Test switch and replace if inoperative. Airflow switch out of adjustment. • Refer to Adjustment Section in this manual for airflow

switch adjustment. Lint door panel not closed properly. • Open lint door panel, place lint door and panel back on

tumbler (ensuring a tight fit). Broken, loose or incorrect wiring. • Refer to wiring diagram located on back of tumbler or in

literature packet. Improper fan rotation. • May be due to improper wiring resulting in low air flow.

Refer to Installation Manual.

W002

M412982 11

Page 12

Section 3 Troubleshooting

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

6. BURNER IGNITES AND GOES OUT REPEATEDLY

POSSIBLE CAUSE TO CORRECT

Insufficient gas pressure. • Check gas supply and pressure. Low flame will not

maintain sensor conductivity. Burner ports plugged. • Check burner tubes for build-up. Improper or inadequate exhaust system or make-up

air Inoperative high limit or cabinet limit thermostat. • Test thermostat and replace if inoperative. Improper orifices. • Tumbler is equipped for type of gas specified on serial

• Refer to Installation Manual (supplied with tumbler) for

exhaust and make-up air requirements.

plate. If orifices are different from that specified on serial

plate, obtain and install proper orifices.

W002

7. BURNER SHUTS OFF PREMATURELY

POSSIBLE CAUSE TO CORRECT

Improper or inadequate exhaust and/or make-up air system.

• Refer to Installation Manual (supplied with tumbler) for

exhaust and make-up air requirements. Insufficient gas supply. • Open partially closed gas shut-off valve or correct low

pressure. Tumbler not properly equipped for type of gas used. • Tumbler is equipped for type of gas specified on serial

plate. If orifices are different from that specified on serial

plate, obtain and install proper orifices. Improperly adjusted burner flame. • Refer to Adjustment Section in this manual for burner

flame adjustment. Cycling off on high limit thermostat. • Refer to Paragraph 8. Broken, loose or incorrect wiring. • Refer to wiring diagram located on back of tumbler or in

literature packet. Improper fan rotation. • May be due to improper wiring resulting in low air flow.

Refer to Installation Manual.

12 M412982

Page 13

Section 3 Troubleshooting

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

8. BURNER REPEATEDLY CYCLES OFF ON HIGH LIMIT THERMOSTAT

POSSIBLE CAUSE TO CORRECT

External exhaust system is longer than recommended or inadequate make-up air.

• Refer to Installation Manual (supplied with tumbler) for

exhaust and make-up air requirements. Clogged lint screen. • Remove screen and clean. Lint screen and compartment

should be cleaned after every eight hour shift. Lint in internal tumbler ductwork. • Disassemble tumbler ductwork and clean. Lint in external exhaust system. • Disassemble exhaust system and clean. High limit thermostat cycling at too low a

• Replace thermostat.

temperature. Lint door panel not closed properly. • Remove lint door panel - place lint door panel back on

tumbler (ensuring a tight fit). Improper fan rotation. • May be due to improper wiring resulting in low air flow.

Refer to Installation Manual.

W002

9. STEAM VALVE OR BURNER DOES NOT SHUT-OFF

POSSIBLE CAUSE TO CORRECT

Impurities on gas or steam valve seat, preventing

• Replace gas valve or disassemble and clean steam valve.

valve from closing. Inoperative drying timer. • Replace timer. Incorrect wiring. • Refer to wiring diagram located on back of tumbler or in

literature packet.

M412982 13

Page 14

Section 3 Troubleshooting

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

10. CLOTHES DO NOT DRY

POSSIBLE CAUSE TO CORRECT

Heat source inoperative. • Refer to Paragraph 17. Too much water in articles being dried. • Remove excess water. Clothes load too large. • Remove part of load. 120 pounds dry weight (AHAM

cotton load) is maximum load. Improper or inadequate exhaust system. • Refer to Installation Manual (supplied with tumbler) for

exhaust requirements. Heat source shuts off prematurely. • Refer to Paragraph 18. Drying timer improperly set. • Set selector for higher setting. Incorrect voltage. • Refer to Installation Manual (supplied with tumbler) for

electrical requirements. Inadequate make-up air. • Refer to Installation Manual (supplied with tumbler) for

make-up air requirements. Improper fan rotation. • May be due to improper wiring resulting in low air flow.

Refer to Installation Manual.

W002

11. TUMBLER OVERHEATING

POSSIBLE CAUSE TO CORRECT

Gas Models: Incorrect main burner orifices. • Replace orifices. Gas Models: Gas pressure too high. • Adjust gas pressure as specified on serial plate. Steam Models: Steam solenoid valve stuck open. • Clean solenoid valve and replace if necessary. Inadequate make-up air. • Refer to Installation Manual (supplied with tumbler) for

make-up air requirements. Lint accumulation. • Remove lint. Restricted or inadequate exhaust system. • Remove obstruction or lint build-up from exhaust

ductwork. Refer to the Installation Manual (supplied

with tumbler) for exhaust system requirements. Inoperative thermostat. • Replace thermostat.

14 M412982

Page 15

Section 3 Troubleshooting

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

12. BURNERS NOT BURNING PROPERLY - GAS MODELS

POSSIBLE CAUSE TO CORRECT

Burner air shutters incorrectly adjusted. • Refer to Adjustment Section in this manual for proper

flame adjustment. Foreign material in burners. • Disassemble burners and remove obstruction. Gas pressure too high. • Check serial plate on back of tumbler for correct gas

pressure. Incorrect orifices. • Tumbler is equipped for type of gas specified on serial

plate. If orifices are different from that specified on serial

plate, obtain and install proper orifices. Restricted or blocked exhaust duct. • Disassemble and clean exhaust system. Airflow switch not functioning properly. • Check adjustment and replace airflow switch if necessary. Improper fan rotation. • May be due to improper wiring resulting in low air flow.

Refer to Installation Manual.

W002

13. LOADING DOOR OPENS DURING OPERATION

POSSIBLE CAUSE TO CORRECT

Door strike improperly adjusted. • Refer to Adjustment Section in this manual for door strike

adjustment. Tumbler improperly leveled. • Refer to Adjustment Section in this manual for leveling

adjustment.

14. TUMBLER RUNS BUT NO STEAM TO COILS - STEAM MODELS

POSSIBLE CAUSE TO CORRECT

Shut-off valve closed. • Check all valves in supply and return lines make sure they

are open. Blocked steam trap. • Remove trap and clean. Replace if inoperative. Inoperative solenoid valve. • Check operation of solenoid valve. Incorrect installation of check valve. • Check for inlet and outlet markings on check valve and

invert if necessary. Clogged strainer. • Remove strainer and clean.

M412982 15

Page 16

Section 3 Troubleshooting

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

15. WATER IN STEAM LINE - STEAM MODELS

POSSIBLE CAUSE TO CORRECT

Incorrect installation of steam piping. • Refer to Installation Manual (supplied with tumbler) for

steam requirements. Trap functioning improperly. • Check trap for size and capacity. If trap is dirty or

sluggish, clean thoroughly or replace. Check return line

for high back pressure.

W002

16 M412982

Page 17

Section 3 Troubleshooting

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

16. TUMBLER WILL NOT START, TIME ON DRYING TIMER, DOOR CLOSED

W002

CHECK FOR LINE

VOLTAGE INTO

TRANSFORMER

CHECK

ELECTRICAL SERVICE

TO TUMBLER

(Fuses/Circuit Breaker)

CHECK FOR

120 VOLTS OUT OF

DOOR SWITCH

CHECK FOR DOOR

SWITCH ACTUATOR

YES

FUNCTIONING

PROPERLY

NO NO

CHECK FOR CONTROL

(120 VAC) VOLTAGE OUT

OF TRANSFORMER

REPLACE

TRANSFORMER

YES YES YES

CHECK FOR

120 VOLTS AT

TERMINAL 3 OF

CONTROL RELAY

NO NO NO

CHECK FOR BROKEN

WIRE OR POOR

CONNECTION AT

HARNESS PLUG

YES

CHECK FOR

BLOWN CONTROL

CIRCUIT FUSE

YES

REPLACE

FUSE

CHECK FOR

120 VOLTS ACROSS

COIL TERMINALS OF

CONTROL RELAY

CHECK FOR

120 VOLTS ON

TERMINAL B OF

DRYING TIMER

NOYES

CHECK FOR

120 VOLTS INTO

DOOR SWITCH

CHECK FOR BROKEN

WIRE BETWEEN

FUSE AND

DOOR SWITCH

CHECK FOR

120 VOLTS ON

TERMINAL 1 OF

CONTROL RELAY

REPLACE

RELAY

YES

ADJUST

ACTUATOR

YES

REPLACE DOOR

SWITCH

CHECK FOR 120

VOLTS INTO

PUSH-TO-START

SWITCH

CHECK FOR

BROKEN WIRE

FROM CONTROL

RELAY TERMINAL 1

M412982 17

PRESS PUSH-TO-

YES

START SWITCH. CHECK FOR 120

VOLTS OUT OF

PUSH-TO-START

SWITCH.

REPLACE

PUSH-TO-START

SWITCH

120 VOLTS ACROSS

FAN CONTACTOR

CONNECTION AT

HARNESS PLUG

REPLACE

TIMER

CHECK FOR

COIL

CHECK FOR

BROKEN WIRE

OR POOR

YESYES

REPLACE

FAN CONTACTOR

Page 18

Section 3 Troubleshooting

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

17. MOTOR RUNS BUT WILL NOT HEAT

W002

IGNITER

SPARKING

YES

GREEN WIRE

FROM IEI

CONTROL

CONNECTED TO

GROUND

TERMINAL

YES

GAS SHUT-OFF

VALVE TURNED ON

YES

120 VOLTS

PRESENT ON

BLACK WIRE FROM

IEI CONTROL

OPEN AND CLOSE

IN SAFETY

LOCKOUT

YES

DOOR

CONNECT GREEN

WIRE TO GROUND

TERMINAL

TURN ON

GAS SHUT-OFF

VALVE

REPLACE

IEI CONTROL

RESISTANCE OF

HIGH VOLTAGE

LEAD GREATER

THAN 28,000 OHMS

OR LESS THAN

10,500 OHMS

HIGH VOLTAGE

YES

REPLACE

LEAD

IGNITER GAP

IS NOT 5/32 INCH

(.397 CM) OR

CERAMIC CRACKED

YES

REGAP OR

REPLACE

IGNITER

REPLACE

IEI CONTROL

YES

CHECK GAS VALVE

COIL FOR OPEN

CIRCUIT

18 M412982

YES

REPLACE

GAS VALVE

Page 19

Section 3 Troubleshooting

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

18. CYLINDER TURNS, BUT WILL NOT HEAT

W002

AIRFLOW LIGHT

GLOWING

GAS SHUT-OFF

VALVE OPEN

YES

120 VOLTS PRESENT AT OUTPUT

TERMINAL OF MAIN THERMOSTAT

120 VOLTS PRESENT AT INPUT

TERMINAL OF MAIN THERMOSTAT

FAN TURNING COUNTER-

YES

CLOCKWISE AS VIEWED

YES

FROM THE FRONT

REVERSE ANY TWO OF THE

ELECTRICAL SERVICE LEADS AT

THE FAN MOTOR CONTACTOR.

OPEN GAS SHUT-OFF VALVE

YES

CHECK FOR BROKEN OR LOOSE

WIRE TO IGNITION CONTROL

REPLACE MAIN THERMOSTAT

REFER TO INSTALLATION MANUAL

FOR MAKEUP AIR AND EXHAUST DUCT

REQUIREMENTS

120 VOLTS PRESENT AT

TERMINAL 6 OF RELAY

120 VOLTS PRESENT AT

TERMINAL 4 OF RELAY

120 VOLTS PRESENT AT OUTPUT TERMINAL OF STOVE HIGH LIMIT

120 VOLTS PRESENT AT INPUT

TERMINAL OF STOVE HIGH LIMIT

M412982 19

THERMOSTAT

YES

CHECK FOR BROKEN OR LOOSE

WIRE TO MAIN THERMOSTAT

120 VOLTS PRESENT ACROSS COIL

TERMINALS OF RELAY

CHECK FOR BROKEN OR

LOOSE WIRE TO RELAY

REPLACE STOVE HIGH LIMIT

THERMOSTAT

(continued on following page)

YES

REPLACE

RELAY

Page 20

Section 3 Troubleshooting

18. CYLINDER TURNS, BUT WILL NOT HEAT (continued)

120 VOLTS PRESENT AT OUTPUT

TERMINAL OF AIRFLOW SWITCH

120 VOLTS PRESENT AT INPUT

TERMINAL OF AIRFLOW SWITCH

120 VOLTS PRESENT AT OUTPUT

TERMINAL OF EXHAUST HIGH LIMIT

THERMOSTAT

120 VOLTS PRESENT AT INPUT

TERMINAL OF EXHAUST HIGH LIMIT

THERMOSTAT

120 VOLTS PRESENT ON

RED WIRE OF FAN MOTOR

120 VOLTS PRESENT ON

BROWN WIRE OF FAN MOTOR

YES

CHECK FOR BROKEN OR LOOSE WIRE

TO STOVE HIGH LIMIT THERMOSTAT

REPLACE AIRFLOW SWITCH

CHECK FOR BROKEN OR LOOSE WIRE

TO AIRFLOW SWITCH

REPLACE EXHAUST HIGH LIMIT

THERMOSTAT

CHECK FOR BROKEN OR LOOSE WIRE

TO EXHAUST HIGH LIMIT THERMOSTAT

REPLACE FAN MOTOR

120 VOLTS PRESENT ON OUTPUT

TERMINAL OF FAN CONTACTOR AUX

CONTACT

120 VOLTS PRESENT ON INPUT

TERMINAL OF FAN CONTACTOR AUX

CONTACT

CHECK FOR BROKEN OR

LOOSE JUMPER WIRE TO CONTACTOR

CONTACTS

YES

CHECK FOR BROKEN OR LOOSE WIRE

TO FAN MOTOR

REPLACE FAN CONTACTOR

20 M412982

Page 21

Section 4

Grounding

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

WARNING

To reduce the risk of fire and electric shock, check with a qualified serviceperson for proper grounding procedures. Improper connection of the equipment grounding conductor may result in a risk of electric shock.

W002

W068R1

WARNING

To reduce the risk of fire and electric shock if electrical supply is coming from a three phase service:

• If there is a “High Leg” or “Stinger Leg” it should be connected to L3.

19. GROUNDING INSTRUCTIONS

This tumbler must be grounded. In the event of malfunction or breakdown, grounding will reduce the risk of electric shock by providing the path of least resistance for electric current. This tumbler must be connected to a grounded metal, permanent wiring system or an equipment grounding conductor must be run with the circuit conductors and connected to the appropriate ground location.

NOTE: To ensure protection against shock, this tumbler MUST be electrically grounded in accordance with local codes, or, in the absence of local codes, with the latest edition of the National Electrical Code ANSI/NFPA No. 70. In Canada the electrical connections are to be made in accordance with CSA C22.1 or the latest edition of the Canadian Electrical Code, Part I and/or local codes. Electrical work should be done by a qualified electrician.

WARNING

All electrical connections should be made by a qualified electrician.

To reduce the risk of electrical shock, deenergize the electrical circuit being connected to the tumbler before making any electrical connections. Never attempt to connect a live circuit.

W070

W446

M412982 21

Page 22

Section 5

Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

20. ACCESS PANEL/CONTROL BOX

a. Remove four screws holding access panel to

cabinet. Refer to Figure 1.

b. Lift access panel off top edge of front panel and

pull panel forward. Refer to Figure 1.

c. Remove control box cover. Refer to Figure 2.

21. LOADING DOOR ASSEMBLY

Refer to Figure 3. a. Open loading door. b. While supporting door, remove upper and

lower hinge pins holding door to hinge brackets.

c. Remove door from hinge brackets.

NOTE: Nylon washer must be in place above lower hinge bracket when reinstalling loading door.

ACCESS PANEL

ATTACHING

SCREWS

22. LOADING DOOR HINGE BRACKETS

Refer to Figure 3. a. Open loading door. b. While supporting door, remove upper and

lower hinge pins holding door to hinge brackets.

c. Remove door from hinge brackets.

d. Remove screws holding brackets to front panel.

NOTE: If both the upper and lower door hinge brackets are removed at the same time, the door switch bracket will fall inside the tumbler. The front panel will have to be removed to retrieve the door switch bracket. In order to avoid this problem, change door hinge brackets one at a time.

ACCESS

PANEL

THERMOSTAT

PANEL

TMB1498S

Figure 1

M412982 23

TIMER BOX

COVER

TIMER PANEL

Page 23

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

23. LOADING DOOR HINGES

Refer to Figure 3. a. Open loading door. b. While supporting door, remove upper and

lower hinge pins that hold door to hinge brackets.

c. Remove door from hinge brackets. d. Remove screws holding hinges to door. e. Remove door switch actuator from upper hinge.

REAR

NOTE: CONTROL BOX COVER REMOVED.

NOTE: Door switch actuator must be reinstalled in upper hinge when door is reassembled.

24. LOADING DOOR HANDLE

Refer to Figure 3. a. Open loading door. b. Remove screws holding door handle to door

frame.

TOP VIEW OF TUMBLER

IGNITION

CONTROL

FUSE

HOLDER

NUT

CONTROL BOX

COVER

SIGNAL

BUZZER

FRONT

T217SE3B

Figure 2

24 M412982

Page 24

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

25. FRONT PANEL

a. Remove four screws holding access panel to

cabinet. Refer to Figure 1.

b. Lift access panel off top edge of front panel and

pull panel forward. Refer to Figure 1. c. Remove control box cover. Refer to Figure 2. d. Remove four screws from timer graphic panel.

Disconnect timers and door switch wires at

molex plugs. Set aside timer graphic panel to

prevent damage. Refer to Figure 5. e. Loosen set screw on temperature knob, and

remove knob from temperature graphic panel.

f. Remove two screws holding thermostat to

temperature graphic panel. g. Remove four screws from temperature graphic

panel, then disconnect reversing/non-reversing

switch, load ready light, and low airflow light.

Set aside temperature graphic panel to prevent

damage.

DOOR

ASSEMBLY

h. Open and remove lint panel. Set aside to

prevent damage.

i. Open loading door, support door and remove

both hinge pins holding door to hinge brackets. Refer to Figure 3.

NOTE: Nylon washer must be in place above lower hinge bracket when reinstalling door.

j. Remove door from hinges.

k. Support front panel and remove screws holding

front panel to tumbler cabinet. Refer to Figure 3.

l. Remove front panel while carefully feeding

door switch wires through hole in cabinet.

NOTE: Refer to wiring diagram when rewiring lights and switch.3

FRONT PANEL

ATTACHING

SCREWS

(6)

DOOR

HANDLE

ACTUATOR

DOOR

HINGES

T248PZ3C

DOOR

HINGES

WASHER

HINGE

DOOR

HINGE

BRACKETS

TMB1496S

Figure 3

M412982 25

Page 25

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

26. LOADING DOOR SWITCH

a. Remove front panel. b. Disconnect wires from door switch. c. Remove two switch attaching screws and

remove switch. Refer to Figure 4.

NOTE: Refer to wiring diagram when rewiring door switch.

WARNING

To reduce the risk of serious injury or death, loading door switch MUST be reinstalled after service is completed.

W328

SWITCH

ATTACHING

SCREWS

DOOR

SWITCH

27. PUSH-TO-START SWITCH (Manual Timer Models)

a. Remove four screws holding access panel to

cabinet. Refer to Figure 1.

b. Lift access panel off top edge of front panel and

pull panel forward. Refer to Figure 1. c. Remove timer box cover. Refer to Figure 1. d. Remove two screws holding switch to front

panel. Refer to Figure 5. e. Disconnect wires from switch terminals and

remove switch.

NOTE: Refer to wiring diagram when rewiring switch.

28. COOLING AND DRYING RUN LIGHTS (Manual Timer Models)

a. Remove four screws holding access panel to

cabinet. Refer to Figure 1.

b. Lift access panel off top edge of front panel and

pull panel forward. Refer to Figure 1. c. Remove timer box cover. Refer to Figure 1. d. Disconnect light wire leads. Refer to Figure 5. e. Compress locking tabs on sides of light and

push light through front panel.

29. RELAY

a. Remove four screws holding access panel to

cabinet. Refer to Figure 1. b. Lift access panel off top edge of front panel and

ACTUATOR

pull panel forward. Refer to Figure 1. c. Remove timer box cover. Refer to Figure 1. d. Disconnect wires from relay.

T315PE1A

e. Remove two screws holding relay to bracket.

Refer to Figure 5.

Figure 4

NOTE: Refer to wiring diagram when rewiring relay.

26 M412982

Page 26

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

30. COOLING AND DRYING TIMERS (Manual Timer Models)

a. Remove four screws holding access panel to

cabinet. Refer to Figure 1.

b. Lift access panel off top edge of front panel and

pull panel forward. Refer to Figure 1.

c. Remove timer box cover. Refer to Figure 1.

PUSH-TO-START

SWITCH

WIRE

LEADS

COOLING

LIGHT

d. Pull timer knob off timer shaft. Refer to

Figure 5.

e. Remove wires from timer terminals.

f. Remove three screws holding timer to graphic

panel.

NOTE: Refer to wiring diagram when rewiring timer.

RELAY

MOUNTING

SCREW

COOLING

TIMER

IGNITION

RESET

SWITCH

GRAPHIC

PANEL

START

SWITCH

MOUNTING

SCREW

TIMER

KNOBS

TIMER

MOUNTING

SCREW

DRYING

TIMER

WIRE

LEADS

RUN

LIGHT

TMB1337P

Figure 5

M412982 27

Page 27

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

INSTANT

ELECTRONIC

IGNITION

CONTROL

THERMOSTAT

W002

LIGHTS

TEMPERATURE

GRAPHIC

PANEL

THERMOSTAT

ATTACHING

SCREW

THERMOSTAT

KNOB

REVERSING/NONREVERSING

SWITCH

31. REVERSING/NONREVERSING SWITCH (Manual Timer Models)

a. Remove four screws holding access panel to

cabinet. Refer to Figure 1.

b. Lift access panel off top edge of front panel and

pull panel forward. c. Remove control box cover. Refer to Figure 2. d. Disconnect the wires from the back of the

switch. Refer to Figure 6. e. Depress tabs and pull switch out.

(OPL Micro Control MM Models)

Refer to Figure 7 a. Remove micro control face plate.

CONTACT

BLOCK

PROBE

TUBE

TMB1336P

EMERGENCY STOP

BUTTON

Figure 6

b. Remove two micro control mounting plate

screws, and rotate mounting plate downward. c. Disconnect wires from back of switch. d. Depress tabs and pull switch out.

32. CONTROL THERMOSTAT (Manual Timer Models)

a. Remove four screws holding access panel to

cabinet. Refer to Figure 1.

b. Lift access panel off top edge of front panel and

pull panel forward. c. Remove control box cover. Refer to Figure 2. d. Pull knob off thermostat. Refer to Figure 6. e. Disconnect wires from thermostat.

28 M412982

Page 28

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

f. Remove two screws holding thermostat to front

panel.

g. Support drive guard cover and remove screws

holding guard to rear of tumbler. Refer to Figure 13.

h. Remove screws, wire clips and/or retaining

straps securing thermostat sensing probe to tumbler.

NOTE: Micro Control Models have a thermistor rather than a sensing probe. Refer to Figure 9.

IMPORTANT: When reinstalling thermostat, be sure to install all screws and wire clips and replace all retaining straps.

i. Unlock and remove lint panel. j. Spread locking tabs on sensing probe bracket

and disengage probe from bracket. Refer to Figure 9.

IMPORTANT: When reinstalling thermostat, be sure to secure sensing probe with locking tabs on bracket.

k. Carefully remove thermostat, tube and probe.

Handle micro control circuit board by the sides only. Do not contact circuit boards with hands or metal objects. Place micro control in a clean, dry area away from work area to avoid damage. Do not attempt field repair of the micro control. Attempted repair or tampering with the micro control will void its warranty.

d. Remove four nuts and micro control from

mounting plate.

FACE PLATE

MOUNTING

PLATE

MICRO CONTROL

IMPORTANT: Do not kink sensing tube when installing thermostat.

NOTE: Refer to wiring diagram when rewiring thermostat.

33. MICRO CONTROL

REVERSING/NONREVERSING

SWITCH

MICRO CONTROL MM MODELS

Refer to Figure 7 or Figure 8. a. Remove micro-control face plate.

Figure 7

b. Remove two micro control mounting plate

screws and rotate mounting plate downward.

c. Disconnect wires/harnesses.

IMPORTANT: Due to sensitivity of micro control, careful handling is required. As a precautionary measure, we recommend using a grounded wrist strap when handling micro control. Wrist strap, cord and alligator clip are designed to carry away any electrostatic charge from your body and to direct charge to an available ground.

M412982 29

Page 29

Section 5 Service Procedures

IGNITION RESET

SWITCH

CONTACT

BLOCK

EMERGENCY STOP

BUTTON

MOUNTING

PLATE

MICRO

CONTROL

FACE PLATE

/ S

START

DISPLAY

E V

E R

L D

TEM

AUTO

I N

SPECIAL

CYCLE

TIME

AUTO

TEMP

SPECIAL

TIME

COOL DOWN

+--

CONDITION

LESS

SAVE CUSTOM

PROG

TMB1326P

MICRO CONTROL OM MODELS

Figure 8

30 M412982

Page 30

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

34. EMERGENCY STOP BUTTON - DC, JC AND SC MODELS

a. Remove four screws holding access panel to

cabinet. Refer to Figure 1.

b. Lift access panel off top edge of front panel and

pull panel forward. Refer to Figure 1. c. Remove control box cover. Refer to Figure 2. d. Remove emergency stop button from contact

block. Refer to Figure 6 or Figure 8.

35. IGNITION RESET SWITCH - DC, JC AND SC GAS MODELS

a. Remove four screws holding access panel to

cabinet. Refer to Figure 1.

b. Lift access panel off top edge of front panel and

pull panel forward. Refer to Figure 1. c. Remove control box cover. Refer to Figure 2. d. Disconnect wires from ignition reset switch. e. Remove ignition reset switch. Refer to Figure 5

or Figure 8.

36. FUSE HOLDER

a. Remove four screws holding access panel to

cabinet. Refer to Figure 1.

b. Lift access panel off top edge of front panel and

pull panel forward. c. Remove timer graphic panel. d. Remove left control box cover. Refer to

Figure 2. e. Disconnect fuse holder wires.

f. Unscrew fuse holder cap from side of control

housing. Refer to Figure 2. g. Pull fuse holder out of control housing.

37. SIGNAL BUZZER

a. Remove four screws holding access panel to

cabinet. b. Lift access panel off top edge of front panel and

pull panel forward. c. Remove control box cover. Refer to Figure 2. d. Disconnect buzzer wires. Refer to Figure 2. e. Remove screws holding buzzer to housing.

M412982 31

Page 31

Section 5 Service Procedures

SENSING

PROBE

LINT

SCREEN

THERMISTOR

LINT

SCREEN

TMB1746S

Figure 9

32 M412982

Page 32

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

38. GAS VALVE

a. Remove four screws holding access panel to

cabinet.

b. Lift access panel off top edge of front panel and

pull panel forward. c. Close gas shut-off valve. Refer to Figure 10. d. Disconnect all wires from gas valve terminals

and disconnect gas valve pipe unions. e. Remove screws holding gas valve and bracket

to stove assembly.

f. Remove gas valve from mounting bracket.

IMPORTANT: When reinstalling gas valve, purge air and sediment from the gas service line before connecting it loosely to the tumbler. Purge remaining air until odor of gas is detected, then tighten connection. Use pipe compound resistant to action of Liquid Petroleum Gas (L.P.) gas on all pipe threads.

WARNING

To reduce risk of fire or explosion, check pipe connections for gas leaks with a noncorrosive leak detection fluid. Do not use an open flame to check for gas leaks!

W310

NOTE: Refer to wiring diagram when rewiring gas valve.

b. Lift access panel off top edge of front panel and

pull panel forward. c. Remove control box cover. Refer to Figure 2. d. Disconnect wire harness. e. Remove high voltage lead.

IMPORTANT: Remove circuit board and plastic back as a unit. Handle ignition control unit by sides of board only. Do not contact circuit boards with hands or metal objects. Place unit in clean, dry area away from work area to avoid damage. Do not attempt field repair of the ignition control unit. Attempted repair or tampering with the ignition control unit will void its warranty.

f. Remove two screws attaching ignition control

unit to control box. Refer to Figure 6. g. Remove ignition control unit.

41. BURNER TUBE

a. Remove four screws holding access panel to

cabinet. b. Lift access panel off top edge of front panel and

pull panel forward. c. Close gas shut-off valve. Refer to Figure 10. d. Disconnect union nut attaching nipple to

spudholder and remove spudholder. Refer to

Figure 10. e. Remove screws holding burner tubes to stove

front and remove burner tubes.

39. IGNITER

Refer to Figure 10. a. Remove four screws holding access panel to

cabinet.

b. Lift access panel off top edge of front panel and

pull panel forward. c. Disconnect high voltage lead from igniter. d. Remove two screws attaching igniter bracket to

center burner tube.

40. IGNITION CONTROL

When reinstalling spudholder, use noncorrosive leak detection fluid to check all pipe connections for gas leaks. DO NOT USE AN OPEN FLAME TO CHECK FOR GAS LEAKS! Make sure that spudholder and orifices are positioned such that gas will be injected directly down the center of the burner.

WARNING

W269R1

a. Remove four screws holding access panel to

cabinet.

M412982 33

Page 33

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

SHUT-OFF

VALVE

GAS

VALVE

UNION

NUT

GAS VALVE

BRACKET

STOVE

HIGH LIMIT

THERMOSTAT

ATTACHING

SCREWS

SPUDHOLDER

IGNITER

TMB1737P

Figure 10

42. STOVE HIGH LIMIT THERMOSTAT

g. Remove thermostat.

(Gas Models)

a. Remove four screws holding access panel to

cabinet. b. Lift access panel off top edge of front panel and

pull panel forward. c. Remove screws holding thermostat cover to

stove. Refer to Figure 10. d. Remove thermostat cover. Refer to Figure 10. e. Disconnect wires to thermostat.

f. Remove the two thermostat attaching screws.

43. CABINET HIGH LIMIT THERMOSTAT/ LOAD READY THERMOSTAT

(Located on rear of tumbler near fan.) a. Support drive guard cover and remove screws

holding guard to rear of tumbler. Refer to

Figure 13. b. Disconnect wires from thermostat. c. Remove two screws holding thermostat to rear

of tumbler. Refer to Figure 14.

Refer to Figure 10.

34 M412982

Page 34

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

45. AIRFLOW SWITCH

AIR

FILTER

STEAM

HEATING UNIT

COVER

(Located on upper rear center of tumbler.) Refer to Figure 12. a. Support drive guard cover and remove screws

that hold guard to rear of tumbler. Refer to

Figure 13. b. Remove screws holding airflow switch cover to

back of tumbler. c. Disconnect wires from switch.

NOTE: Refer to wiring diagram when rewiring airflow switch.

W002

STEAM

COILS

Figure 11

44. STEAM COILS (Steam Models)

Refer to Figure 11. a. Shut off inlet and outlet valves and disconnect

flex hoses from steam coils

b. Remove screws holding cover to top of steam

heating unit and remove cover. c. Remove air filters. d. Remove screws holding steam coils to coil

frame. e. Remove screws from damper.

f. Remove steam coils by lifting straight up and

out of tumbler.

DAMPER

T244PE1A

d. Remove screw(s) that hold switch and

mounting bracket to tumbler.

e. Remove two screws that hold switch to

mounting bracket.

NOTE: After reinstalling airflow switch and mounting bracket into switch box, adjust switch.

BRACKET

MOUNTING

BRACKET

SWITCH

ATTACHING

SCREWS

ATTACHING

SCREWS

COTTER

VANE

NOTE: When removing or replacing steam coils, be careful not to damage fins on steam coils.

TMB1740P

Figure 12

M412982 35

Page 35

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

46. DRIVE GUARD COVER

a. Support drive guard cover and remove screws

that hold guard to rear of tumbler. Refer to

Figure 13. b. Reinstall drive guard.

W002

Figure 13

DRIVE

GUARD ATTACHING

SCREWS

DRIVE GUARD COVER

T245PE3B

36 M412982

Page 36

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

47. CYLINDER BELT

Refer to Figure 15. a. Support drive guard cover and remove screws

that hold guard to rear of tumbler. Refer to Figure 13.

b. Loosen the four jackshaft assembly attaching

screws. Refer to Figure 14.

JACKSHAFT

EYE BOLT

ADJUSTING

NUTS

c. Rotate the adjusting nuts counterclockwise

(approximately three turns). Refer to Figure 14.

d. Slide jackshaft assembly upwards to loosen the

cylinder belt.

e. Remove cylinder belt.

NOTE: After reinstalling belt, adjust drive belt and cylinder belt. Install new belts as a set of 3.

ATTACHING

BOLTS

JACKSHAFT

EYE BOLT

JACKSHAFT

ASSEMBLY

CABINET

HIGH LIMIT

THERMOSTAT

LOAD

READY

THERMOSTAT

T316PE3A

Figure 14

M412982 37

Page 37

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

48. DRIVE BELT

Refer to Figure 15. a. Support drive guard cover and remove screws

holding guard to rear of tumbler. Refer to Figure 13.

b. Loosen the four jackshaft assembly attaching

screws. Refer to Figure 14.

c. Rotate the adjusting nuts counterclockwise

(approximately three turns).

d. Slide jackshaft assembly upwards to loosen the

cylinder belts.

e. Remove cylinder belts.

f. Remove drive belt.

NOTE: After reinstalling drive belt, adjust cylinder belts then drive belt.

49. STEP PULLEY ASSEMBLY

Refer to Figure 15. a. Support drive guard cover and remove screws

holding guard to rear of tumbler. Refer to

Figure 13. b. Remove cylinder and drive belts. c. Remove snap ring and pull step pulley off of

jackshaft.

e. Remove cylinder belts.

f. Remove bushing setscrew. Refer to Figure 15. g. Remove screws from tapered bushing. h. Remove tapered bushing by putting the screws

removed in step “g” into the threaded holes in the bushing. Turning the screws inward will force the bushing out of the cylinder sheave.

i. Remove cylinder sheave.

CYLINDER

SHEAVE

SETSCREW

TAPERED

BUSHING

BELT

DRIVE

BELT

BOLT

50. CYLINDER SHEAVE

Refer to Figure 15. a. Support drive guard cover and remove screws

holding guard to rear of tumbler. Refer to Figure 13.

b. Loosen the four jackshaft assembly attaching

SNAP

RING

STEP

PULLEY

JACKSHAFT

ASSEMBLY

T317PE1A

screws. Refer to Figure 14.

c. Rotate the adjusting nuts counterclockwise

Figure 15

(approximately three turns).

d. Slide jackshaft assembly upwards to loosen the

cylinder belts.

38 M412982

Page 38

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

51. MOTOR PULLEY

Refer to Figure 16. a. Remove drive belt. Refer to Figure 15. b. Loosen setscrews and remove screws from

tapered bushing.

c. Remove tapered bushing by putting the screws

removed in step “b” into the threaded holes in the bushing. Turn the screws inward to force the bushing out of the motor pulley.

d. Remove motor pulley.

NOTE: Realign motor pulley directly over sheave by loosening the tapered bushing and repositioning the motor pulley on the cylinder motor shaft.

52. JACKSHAFT ASSEMBLY

Refer to Figure 15. a. Support drive guard cover and remove screws

that hold guard to rear of tumbler. Refer to

Figure 13. b. Remove cylinder and drive belts. c. Remove snap ring and pull step pulley off of

jackshaft. d. Remove four bolts that attach jackshaft to rear

of tumbler.

NOTE: After installing sheave, adjust belts.

53. CYLINDER ASSEMBLY

a. Remove front panel assembly. b. Support drive guard cover and remove screws

holding guard to rear of tumbler. Refer to Figure 13.

c. Loosen the four jackshaft assembly attaching

screws. Refer to Figure 14.

d. Rotate the adjusting nuts counterclockwise

(approximately three turns).

e. Slide jackshaft assembly upwards to loosen the

cylinder belts.

f. Remove cylinder belts. g. Remove drive belt. Refer to Figure 15. h. Remove screws from tapered bushing. Refer to

Figure 15.

i. Remove tapered bushing by putting the screws

removed in step “h” into the threaded holes in the bushing. Turning the screws inward will force the bushing out of the cylinder sheave.

j. Remove cylinder sheave. k. Loosen setscrews on trunnion bearings. Refer

to Figure 17.

l. Pull cylinder through front of cabinet.

NOTE: When removing cylinder out through front of cabinet, spread cabinet slightly so cylinder will clear cabinet sides.

NOTE: After reinstalling drive and cylinder belts,

SETSCREW

TAPERED

SCREWS

M412982 39

BUSHING

Figure 16

MOTOR

PULLEY

T371PE1A

adjust belts.

Page 39

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

54. TRUNNION BEARINGS

Refer to Figure 17. a. Remove front panel assembly. b. Place blocks under cylinder so that cylinder

will stay level while trunnion bearings are

being replaced. c. Remove cylinder sheave. d. Loosen the front and rear adjusting screws. e. Loosen setscrews holding bearings to shaft.

REAR

ADJUSTING

SCREW

MOUNTING

BRACKET

BEARING

MOUNTING

SCREW

BEARING

MOUNTING

NUT

f. Remove bearing mounting screws. g. Remove rear bearing. h. Remove screws that hold mounting bracket to

tumbler. i. Remove mounting bracket. j. Remove front bearing mounting nuts.

k. Loosen setscrews holding bearing to shaft.

l. Remove front bearing.

SETSCREWS

MOUNTING BRACKET

ATTACHING

SCREW

SETSCREWS

REAR

BEARING

ASSEMBLY

FRONT

BEARING

ASSEMBLY

FRONT

ADJUSTING

SCREW

T533P

Figure 17

40 M412982

Page 40

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

55. FAN MOTOR AND FAN ASSEMBLY

a. Disconnect wires from fan motor.

NOTE: Refer to wiring diagram when rewiring motor.

b. Remove attaching nuts and screws. Refer to

Figure 18.

c. Pull fan motor and fan assembly out of tumbler.

56. FAN

a. Disconnect wires from fan motor.

NOTE: Refer to wiring diagram when rewiring motor.

b. Remove attaching nuts and screws. Refer to

Figure 18. c. Pull motor and fan assembly out of tumbler. d. Remove screws that hold tapered bushing to fan

and remove tapered bushing. e. Remove tapered bushing by putting the screws

removed in step “d” into the threaded holes in

the bushing. Turning the screws inward will

force the bushing off of the fan.

f. Remove fan from motor shaft.

FAN

MOTOR

ATTACHING

SCREW

ATTACHING

NUT

Figure 18

W002

BUSHING

FAN

T319PE1A

M412982 41

Page 41

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

57. TRUNNION SHAFT ASSEMBLY

Refer to Figure 19. a. Remove cylinder assembly. b. Remove the eight washers and nuts holding

trunnion shaft assembly to rear of cylinder.

TAPE

MEASURE

IMPORTANT: When installing trunnion assembly on cylinder, the cylinder and shaft must be aligned. Refer to Figure 19. Measure the distance between the center of the trunnion shaft and the outer rim of the cylinder at the four points shown. If any measurement is less than the largest, place spacer(s) between trunnion arm and cylinder back until all measurements are equal.

TRUNNION

SHAFT

MEASURE AT

FOUR POINTS

TRUNNION

ARM

CYLINDER

T089SE1A

Figure 19

42 M412982

Page 42

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

58. CYLINDER DRIVE MOTOR

Refer to Figure 20. a. Support drive guard cover and remove screws

that hold guard to rear of tumbler. Refer to

Figure 13. b. Remove drive belt. Refer to Figure 15. c. Mark location of motor on the motor mounting

bracket and remove screws and nuts holding

motor to mounting bracket. Refer to Figure 20.

MOTOR

PULLEY

d. Disconnect wire harness from motor. e. Remove motor pulley.

NOTE: Refer to wiring diagram when rewiring the motor.

f. After installing motor, adjust drive belt tension.

ATTACHING

SCREW

MOTOR

MOUNTING

BRACKET

ATTACHING

NUT

T237PE3E

Figure 20

M412982 43

Page 43

Section 5 Service Procedures

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

59. REVERSING TIMER

Refer to Figure 21.

NOTE: All reversing electrical components except the reversing/nonreversing switch are located in the contactor box on the rear of the tumbler. The reversing/nonreversing switch is mounted on the thermostat panel.

a. Remove two attaching screws and cover from

contactor box. b. Disconnect wires from reversing timer.

NOTE: Refer to wiring diagram when rewiring timer motor and switches.

c. Remove two screws holding reversing timer to

back wall of contactor box. d. Remove reversing timer.

60. REVERSING CONTACTOR

Refer to Figure 21. a. Remove two attaching screws and cover from

contactor box. b. Disconnect wires from contactor coil terminals.

61. FAN MOTOR CONTACTOR

Refer to Figure 21. a. Remove two attaching screws and cover from

contactor box.

b. Disconnect wires from contactor terminals.

NOTE: Refer to wiring diagram when rewiring fan motor contactor.

c. Remove two screws holding din rail to back

wall of junction box.

d. Slide contactor off of din rail.

62. TRANSFORMER

Refer to Figure 21. a. Remove two attaching screws and cover from

contactor box.

b. Disconnect leads from transformer terminals.

NOTE: Refer to wiring diagram when rewiring transformer.

c. Remove four screws holding transformer to

back wall of contactor box.

d. Remove transformer.

NOTE: Refer to wiring diagram when rewiring reversing contactor.

c. Remove screws holding reversing contactor to

back wall of contactor box. d. Remove reversing contactor.

44 M412982

Page 44

REVERSING

CONTACTOR

FAN MOTOR

CONTACTOR

DIN

RAIL

Contactor Box

TRANSFORMER

Section 5 Service Procedures

REVERSING

TIMER

TERMINAL

BLOCK

TERMINAL

STRIP

T341PE3B

Figure 21

M412982 45

Page 45

Section 6

Adjustments

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

63. LEVELING

NOTE: It is recommended that the front of the tumbler be kept slightly higher than the rear (approximately 1/8 inch, 3.0 mm). This will prevent the clothes, while tumbling, from wearing on the door glass gasket.

a. Check the front to rear level by rotating the

clothes cylinder until one of the cylinder ribs is

at the bottom. Place a level on the rib. b. Check the side to side level by placing a level

on access panel top and rear frame top angle.

W002

M412982 47

Page 46

Section 6 Adjustments

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

64. MAIN GAS BURNER AIR INLET SHUTTERS (All Gas Models)

Refer to Figure 22.

CAUTION

The air inlet shutters on the burner must be adjusted so sufficient primary air is metered into the system for proper combustion and maximum efficiency. Before adjusting the inlet shutter be sure that all lint is removed from lint compartment and lint screen.

Air inlet shutter adjustments will vary from location to location and will depend on the vent system, number of units installed, make-up air and line gas pressure. Opening the shutter increases the amount of primary air supplied to the burner while closing the shutter decreases the air supply. Adjust the air shutter as follows:

W281

a. Remove access panel. b. Start tumbler and check the flame pattern.

Correct air and gas mixture is indicated if the flame pattern is primarily blue, with small yellow tips, and bends to the left of the heater section. Too little air is indicated if the flame is yellow, lazy and smokey.

c. To adjust the air inlet shutter, loosen locking

screw.

d. Slide shutter in or out as necessary to obtain

desired flame intensity.

e. After shutter is adjusted, tighten locking screw

securely.

f. If the flame pattern is straight up, insufficient

air is flowing through the tumbler. A flame pattern that flares to the right and left indicates that no air is flowing through the tumbler.

INSUFFICIENT AIRFLOW

AIR SHUTTER

ADJUSTING SCREW

T197SE3C

PROPER AIRFLOW

AIR SHUTTER

ADJUSTING SCREW

T196SE3C

NO AIRFLOW

AIR SHUTTER

ADJUSTING SCREW

T195SE3C

Figure 22

48 M412982

Page 47

Section 6 Adjustments

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

65. AIRFLOW SWITCH

The airflow switch is set at the factory for proper operation. No adjustment necessary. Refer to Figure 23.

IMPORTANT: Airflow switch vane must remain closed during operation. If it opens and closes during the drying cycle, this indicates insufficient airflow through the tumbler. If switch remains open, or pops open and closed during the cycle, the heating system will shut off. The cylinder and fan will continue to operate even though the airflow switch is indicating insufficient airflow.

AIR FLOW

SWITCH

b. Slowly close loading door. When door is .5

inches (13 mm) minimum from being fully closed, the actuator on the door should contact the switch lever and depress it enough to close the switch with an audible “click”.

c. If actuator does not depress the switch lever

enough to operate the switch, adjust actuator by rotating counterclockwise and repeat steps “a” and “b”.

67. LOADING DOOR STRIKE

Refer to Figure 24. The door strike must be adjusted so it has sufficient tension to hold loading door closed against the force of a tumbling load. The door strike is properly adjusted when 8-15 lbs. (17.6-33 kg) of pull is required to open door.

To adjust, open door, loosen nut and turn door strike screw in or out as required. Tighten nut. Refer to Figure 24.

ATTACHING

SCREWS

DOOR STRIKE

T283i

Figure 23

66. LOADING DOOR SWITCH

Refer to Figure 4.

DOOR

HANDLE

The door switch should be adjusted so the cylinder stops when door is opened 2.75 inches (70 mm) maximum. This switch is a normally open switch and is closed when the door is closed. (Switch actuator is located on upper door hinge.)

a. Close door and start tumbler, then slowly open

loading door. Cylinder and heat system should

NUT

T189SE1A

Figure 24

shut off when door is open 2.75 inches (70 mm) maximum.

M412982 49

Page 48

Section 6 Adjustments

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

68. DRIVE BELT TENSION

NOTE: To find the proper tension, apply light thumb pressure midway between the sheave and motor pulley, and adjust until the belt can be depressed approximately 1/2 inch (13 mm).

a. Support drive guard cover and remove screws

holding guard to rear of tumbler. Refer to Figure 13.

SIDE

BRACKET

b. Loosen the two motor bracket pivot screws.

Refer to Figure 25.

c. Turn the adjusting nuts clockwise until proper

tension is reached. Refer to Figure 25.

d. Retighten all nuts and screws.

MOTOR

BRACKET

PIVOT

SCREW

MOTOR

MOUNTING

BRACKET

ADJUSTING

NUTS

ADJUSTING

TUBE

T237PE3F

Figure 25

50 M412982

Page 49

Section 6 Adjustments

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

69. CYLINDER BELT

NOTE: To find the proper tension, apply light thumb pressure midway between cylinder sheave and step pulley and adjust until the belt can be depressed approximately 1/2 inch (13 mm).

a. Support drive guard cover and remove screws

that hold guard to rear of tumbler. Refer to Figure 13.

b. Loosen the four jackshaft assembly attaching

screws. Refer to Figure 26.

c. Loosen adjusting nuts on outer eyebolt and

rotate bottom nut clockwise until proper

tension is reached. Refer to Figure 14. d. Retighten all nuts and screws. e. Readjust drive belt.

IMPORTANT: Adjusting the cylinder belt tension WILL AFFECT the drive belt tension. You MUST check and readjust the drive belt tension after adjusting the cylinder belt tension.

JACKSHAFT

ASSEMBLY

ATTACHING

SCREWS

JACKSHAFT

ASSEMBLY

T317PE1B

Figure 26

CYLINDER CLEARANCE

The clearance between the cylinder rim and front panel must be adjusted so the cylinder is centered within the front panel opening when the cylinder is fully loaded and is turning. However, the adjustment should be made when the cylinder is empty.

NOTE: If the cylinder is not properly adjusted, the cylinder rim will rub against the front panel.

a. Open loading door. b. Check the gap between the center of the front

panel top flange and the cylinder rim. Proper adjustment is when the gap is 8/32 inch ± 3/32 inch. Refer to Figure 27. Perform steps d through i to adjust the cylinder rim/front panel flange clearance.

c. Check the cylinder fore/aft clearance between

the inside front of the cylinder and the edge of the front panel flange. Proper adjustment is when the gap is 9/32 inch ± 1/32 inch. Refer to Figure 27. Perform steps j through n to adjust the cylinder fore/aft clearance.

CYLINDER RIM/FRONT PANEL FLANGE CLEARANCE ADJUSTMENT

a. Support corner drive guard and remove screws

holding corner guard to rear of tumbler.

b. Support drive guard cover and remove screws

holding guard to rear of tumbler.

c. Loosen rear bearing mounting screws. Refer to

Figure 28

d. Loosen the locknuts on rear adjustment screws.

Refer to Figure 28.

e. Turn the adjusting screws in or out as necessary

to obtain proper clearance between cylinder rim and front panel.

NOTE: Turning the adjusting screws clockwise will raise the cylinder and turning them counterclockwise will lower the cylinder. Turn both screws evenly to adjust top and bottom clearance. Turn one or the other adjusting screw in or out to adjust side clearance.

M412982 51

Page 50

Section 6 Adjustments

WARNING

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

f. After the cylinder is properly adjusted, tighten

the adjusting screw locknuts and the rear

bearing mounting screws. g. Install drive guard cover. Refer to

Paragraph 46.

NOTE: If adjusting the trunnion housing fails to correct the clearance, the problem is probably due to a worn trunnion shaft or defective bearings.

CYLINDER FORE/AFT CLEARANCE ADJUSTMENT

h. Support corner drive guard and remove screws

holding corner guard to rear of tumbler.

CYLINDER

RIM

i. Support drive guard cover and remove screws

holding guard to rear of tumbler.

j. Loosen setscrews in the front bearing assembly

collar and rear bearing assembly collar. Refer to Figure 28.

k. Move cylinder assembly in or out as necessary

to obtain proper clearance between the cylinder and the front panel.

l. After the cylinder is properly adjusted, tighten

setscrews in the front and rear bearing assembly collars.

m. Install drive guard cover. Refer to

Paragraph 46.

INSIDE

FRONT OF

CYLINDER

8/32" ± 3/32"

9/32" ± 1/32"

FRONT

PANEL FLANGE

(Top Shown)

FORE / AFT

CLEARANCE

CYLINDER RIM /

FRONT PANEL

FLANGE

CLEARANCE

T218SE3A

Figure 27

52 M412982

Page 51

REAR

ADJUSTING

SCREW

Section 6 Adjustments

ADJUSTING

SCREW

LOCKNUT

BEARING MOUNTING

REAR

SCREW

BEARING ASSEMBLY

REAR

COLLAR

BEARING ASSEMBLY

Figure 28

FRONT

COLLAR

TMB1500S

FRONT

ADJUSTING

SCREW

M412982 53

Page 52

Section 7

Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

WIRING DIAGRAMS AND SCHEMATICS

FOUND ON THE FOLLOWING PAGES

ARE FOR MODELS COVERED IN THIS MANUAL.

W030

M412982 55

Page 53

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

AT, DT, JT AND ST MANUAL TIMER MODELS

208-230 VAC, 60 HERTZ, 3 PHASE GAS TUMBLER

56 M412982

Page 54

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

AT, DT, JT AND ST MANUAL TIMER MODELS

380-415 VAC, 50 HERTZ, 3 PHASE GAS TUMBLER

M412982 57

Page 55

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

AT, DT, JT AND ST MANUAL TIMER MODELS

460 VAC, 60 HERTZ, 3 PHASE GAS TUMBLER

58 M412982

Page 56

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

AT, DT, JT AND ST MANUAL TIMER MODELS

208-230 VAC, 60 HERTZ, 3 PHASE STEAM TUMBLER

M412982 59

Page 57

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

AT, DT, JT AND ST MANUAL TIMER MODELS

380-415 VAC, 50 HERTZ, 3 PHASE STEAM TUMBLER

60 M412982

Page 58

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

AT, DT, JT AND ST MANUAL TIMER MODELS

460 VAC, 60 HERTZ, 3 PHASE STEAM TUMBLER

M412982 61

Page 59

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

DC, JC AND SC MANUAL TIMER MODELS

380-415 VAC, 50 HERTZ, 3 PHASE GAS TUMBLER

62 M412982

Page 60

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

DC, JC AND SC MANUAL TIMER MODELS

380-415 VAC, 50 HERTZ, 3 PHASE STEAM TUMBLER

M412982 63

Page 61

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

MICRO CONTROL MM MODELS

208-240 VAC, 60 HERTZ, 3 PHASE GAS TUMBLER

64 M412982

Page 62

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

MICRO CONTROL MM MODELS

480 VAC, 60 HERTZ, 3 PHASE GAS TUMBLER

M412982 65

Page 63

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

MICRO CONTROL MM MODELS

208-240 VAC, 60 HERTZ, 3 PHASE STEAM TUMBLER

66 M412982

Page 64

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

MICRO CONTROL MM MODELS

480 VAC, 60 HERTZ, 3 PHASE STEAM TUMBLER

M412982 67

Page 65

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

AT, DT, JT AND ST MICRO CONTROL OM MODELS

208-230 VAC, 60 HERTZ, 3 PHASE GAS TUMBLER

68 M412982

Page 66

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

AT, DT, JT AND ST MICRO CONTROL OM MODELS

380-415 VAC, 50 HERTZ, 3 PHASE GAS TUMBLER

M412982 69

Page 67

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

AT, DT, JT AND ST MICRO CONTROL OM MODELS

460-480 VAC, 60 HERTZ, 3 PHASE GAS TUMBLER

70 M412982

Page 68

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

AT, DT, JT AND ST MICRO CONTROL OM MODELS

208-230 VAC, 60 HERTZ, 3 PHASE STEAM TUMBLER

M412982 71

Page 69

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

AT, DT, JT AND ST MICRO CONTROL OM MODELS

380-415 VAC, 50 HERTZ, 3 PHASE STEAM TUMBLER

72 M412982

Page 70

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

AT, DT, JT AND ST MICRO CONTROL OM MODELS

460-480 VAC, 60 HERTZ, 3 PHASE STEAM TUMBLER

M412982 73

Page 71

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

DC, JC AND SC MICRO CONTROL OM MODELS

380-415 VAC, 50 HERTZ, 3 PHASE GAS TUMBLER

74 M412982

Page 72

Section 7 Wiring Schematics

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

DC, JC AND SC MICRO CONTROL OM MODELS

380-415 VAC, 50 HERTZ, 3 PHASE STEAM TUMBLER

M412982 75

Alliance Laundry Systems AT120FG, SC120FG, DT120FG, JT120FG, ST120FG Service Manual

Table of Contents

Locating An Authorized Service Person

Model Identification

Customer Service

Serial Plate Location

Safety Warnings and Decals

Safety Precautions for Servicing Tumblers

16. TUMBLER WILL NOT START, TIME ON DRYING TIMER, DOOR CLOSED

17. MOTOR RUNS BUT WILL NOT HEAT

18. CYLINDER TURNS, BUT WILL NOT HEAT

19. GROUNDING INSTRUCTIONS

20. ACCESS PANEL/CONTROL BOX

21. LOADING DOOR ASSEMBLY

22. LOADING DOOR HINGE BRACKETS

23. LOADING DOOR HINGES

24. LOADING DOOR HANDLE

25. FRONT PANEL

26. LOADING DOOR SWITCH

27. PUSH-TO-START SWITCH (Manual Timer Models)

28. COOLING AND DRYING RUN LIGHTS (Manual Timer Models)

29. RELAY

30. COOLING AND DRYING TIMERS (Manual Timer Models)

31. REVERSING/NONREVERSING SWITCH (Manual Timer Models)

32. CONTROL THERMOSTAT (Manual Timer Models)

33. MICRO CONTROL

34. EMERGENCY STOP BUTTON - DC, JC AND SC MODELS

35. IGNITION RESET SWITCH - DC, JC AND SC GAS MODELS

36. FUSE HOLDER

37. SIGNAL BUZZER

38. GAS VALVE

41. BURNER TUBE

39. IGNITER

40. IGNITION CONTROL

42. STOVE HIGH LIMIT THERMOSTAT

43. CABINET HIGH LIMIT THERMOSTAT/ LOAD READY THERMOSTAT

45. AIRFLOW SWITCH

44. STEAM COILS (Steam Models)

46. DRIVE GUARD COVER

47. CYLINDER BELT

48. DRIVE BELT

49. STEP PULLEY ASSEMBLY

50. CYLINDER SHEAVE

51. MOTOR PULLEY

52. JACKSHAFT ASSEMBLY

53. CYLINDER ASSEMBLY

54. TRUNNION BEARINGS

55. FAN MOTOR AND FAN ASSEMBLY

56. FAN

57. TRUNNION SHAFT ASSEMBLY

58. CYLINDER DRIVE MOTOR

59. REVERSING TIMER

60. REVERSING CONTACTOR

61. FAN MOTOR CONTACTOR

62. TRANSFORMER

63. LEVELING

65. AIRFLOW SWITCH

67. LOADING DOOR STRIKE

66. LOADING DOOR SWITCH

68. DRIVE BELT TENSION

69. CYLINDER BELT

AT, DT, JT AND ST MANUAL TIMER MODELS

DC, JC AND SC MANUAL TIMER MODELS

MICRO CONTROL MM MODELS

AT, DT, JT AND ST MICRO CONTROL OM MODELS

DC, JC AND SC MICRO CONTROL OM MODELS