Alliance Laundry Systems HC18 Manuale utente

Part No. F238000R0

September 1999

B003C

Preliminary Service

Washer-Extractor

Cabinet Hardmount

HC18 SC18 UC18

HC25 SC25 UC25

HC35 SC27 UC27

HC50 SC35 UC35

SC50 UC50

F238000 1

the expressed written consent of the publisher.

Table of Contents

Section 1 – Safety Information

Locating an Authorized Servicer: ............................4

Section 2 – Introduction

Customer Service .....................................................5

Nameplate Location .................................................5

Model Identification.................................................6

Model Familiarization..............................................7

How Your Washer-Extractor Works .......................8

Section 3 – Troubleshooting

1. Machine won’t start ...........................................9

2. Machine does not operate at wash speed...........9

3. Motor runs, but cylinder rotates slowly,

or not at all .........................................................9

4. Wash motor runs continuously

in one direction ................................................10

5. Motor does not operate at spin speed ..............10

6. Motor momentarily starts on and off in spin ...10

7. Machine will not fill with water ......................10

8. Machine will not drain.....................................11

9. Machine will not hold water ............................11

10. Door won’t open ..............................................11

11. Water level too high.........................................11

12. Water level too low..........................................11

13. Door leaks........................................................11

14. Excessive vibration and/or noise during spin ..12

15. Excessive cycle time........................................12

Section 4 – Service Procedures

16. Cabinet Top .....................................................13

17. Control Module Box Cover .............................13

18. Coin Drop ........................................................13

19. Indicator Lights................................................14

20. Graphic Panel Overlay.....................................15

21. Timer and Selector Switch Bracket .................15

22. Pressure Switch................................................16

23. Door Lock PC Board / Capacitor.....................17

24. Timer Delay Relay...........................................18

25. Flange Relay ....................................................18

26. Contactors........................................................19

27. Overload Protector...........................................20

28. Control Transformer ........................................20

29. Mechanical Interlock .......................................21

30. Solid State/Start Switch ...................................21

31. Water Valves ...................................................22

32. Siphon Break ...................................................23

33. Dispenser .........................................................24

34. Belt...................................................................25

35. Motor ...............................................................25

36. Motor Capacitors .............................................26

37. Outer Front Panel.............................................26

38. Loading Door...................................................27

39. Door Lock Assembly.......................................28

40. Cylinder Assembly ..........................................29

41. Trunnion Assembly .........................................29

42. Bearings and Seals...........................................30

F238000 3

Section 1

Safety Information

Throughout this manual and on machine decals, you will find precautionary statements (“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.

aDANGER

Danger indicates the presence of a hazard that will cause severe personal injury, death, or substantial property

damage if the danger is ignored.

aWARNING

Warning indicates the presence of a hazard that can cause severe personal injury, death, or substantial property

damage if the warning is ignored.

aCAUTION

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 (“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.

• 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

WARNING

(continued)

4F238000

Section 1 Safety Information

NOTE: The WARNINGS and IMPORTANT INSTRUCTIONS appearing in this manual are not meant to

cover all possible conditions and situations that may occur. Common sense, caution and care must be

exercised when installing, maintaining or operating the washer-extractor.

Always contact your dealer, distributor, service agent or the manufacturer about any problems or conditions you do

not understand.

Locating an Authorized Servicer:

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.

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

•Disconnect electric power to the washer-extractor before servicing.

•Never start the washer-extractor with any guards/panels removed.

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

reconnected to ensure that the washer-extractor is properly grounded.

W171

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

WARNING

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.

W008

WARNING

F238000 5

Section 2

Introduction

Customer Service

Alliance Laundry Systems is not responsible for

personal injury or property damage resulting from

improper service. Review all service information

before beginning repairs.

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 of the nearest

authorized parts distributor.

For technical assistance, call any of the following

numbers:

(850) 718-1035

(850) 718-1026

Marianna, Florida

(920) 748-3121

Ripon, Wisconsin

Nameplate Location

When calling or writing about your product, be

sure to mention model and serial numbers. Model

and serial numbers are located on nameplate(s) as

shown.

UNIMAC

Model No.

HC80PC3AU10002

1195072314

208-240 14

60 4 3

80 36

0797

560501

530

Serial No.

VoltageAmps

Required Circuit Breaker Amps.

HzWire Phase

Max. LoadKGMax. Speed RPM

Elec. Heating

Product No. Date Code

KWSteam Press PSIBAR

UNIMAC

Model No.

HC80PC3AU10002

1195072314

208-240 14

60 4 3

80 36

0797560501

530

Serial No.

Voltage Amps

Required Circuit Breaker Amps.

Hz Wire Phase

Max. Load KG Max. Speed RPMLB

Elec. Heating

Product No. Date Code

KW Steam Press PSI BAR

B155P

6F238000

Section 2 Introduction

Model Identification

Information in this manual is applicable to these washer-extractors:

HC18MC2

HC18MD2

HC18MH2

HC18MN2

HC18MV2

HC18PC2

HC18SN2

HC25MC2

HC25MD2

HC25MH2

HC25MN2

HC25MV2

HC25PC2

HC25SN2

HC27MC2

HC27MD2

HC27MH2

HC27MN2

HC27MV2

HC35MC2

HC35MD2

HC35MH2

HC35MN2

HC35MV2

HC35PC2

HC35SN2

HC50MC2

HC50MD2

HC50MH2

HC50MN2

HC50MV2

HC50PC2

HC50SN2

SC18MC2

SC18MC3

SC18MD2

SC18MD3

SC18MH2

SC18MH3

SC18MN2

SC18MN3

SC18MV2

SC18MV3

SC18SN2

SC18SN3

SC18VNV

SC25MC2

SC25MD2

SC25MH2

SC25MN2

SC25MV2

SC25SN2

SC27MC2

SC27MD2

SC27MH2

SC27MN2

SC27MV2

SC27SN2

SC27VNV

SC35MC2

SC35MC3

SC35MD2

SC35MD3

SC35MH2

SC35MH3

SC35MN2

SC35MN3

SC35MV2

SC35MV3

SC35SN2

SC35SN3

SC35VNV

SC50MC2

SC50MC3

SC50MD2

SC50MD3

SC50MH2

SC50MH3

SC50MN2

SC50MN3

SC50MV2

SC50MV3

SC50SN2

SC50VNV

UC18MC2

UC18MC3

UC18MD2

UC18MD3

UC18MH2

UC18MH3

UC18MN2

UC18MN3

UC18MV2

UC18MV3

UC18PC2

UC18PC3

UC18PN2

UC18PN3

UC18VNV

UC25MC2

UC25MD2

UC25MH2

UC25MN2

UC25MV2

UC25PC2

UC25PN2

UC27MC2

UC27MD2

UC27MH2

UC27MN2

UC27MV2

UC27PC2

UC27PN2

UC27VNV

UC35MC2

UC35MC3

UC35MD2

UC35MD3

UC35MH2

UC35MH3

UC35MN2

UC35MN3

UC35MV2

UC35MV3

UC35PC2

UC35PC3

UC35PN2

UC35PN3

UC35VNV

UC50MC2

UC50MC3

UC50MD2

UC50MD3

UC50MH2

UC50MH3

UC50MN2

UC50MN3

UC50MV2

UC50MV3

UC50PC2

UC50PC3

UC50PN2

UC50PN3

UC50VNV

F238000 7

Section 2 Introduction

Model Familiarization

Model Number Familiarization Guide

Sample Model Number: SC35MN2CU20001

SC Machine Type C = Cabinet

35 Machine Capacity (pounds dry weight)

(E)

(P)

(S)

(V)

Type of Electrical Control M = Mechanical Timer

E = WX/EDC Microcomputer

P = P-Series Microcomputer†

S = S-Series Microcomputer

V = V-Series Microcomputer

(C)

(D)

(H)

(V)

Coin Meter Option N = No Coin Meter

C = W2000 (Computer-controlled models only)‡

D = Digital (Mechanical Timer models only)

H = Horizontal Slide (Mechanical Timer models only)

V = Vertical Drop (Mechanical Timer models only)

(3)

(V)

Speed 2 = 2-Speed

3=3-Speed

V = Variable-Speed

CElectrical Characteristics See Voltage Designation Chart in this section.

U2 Design Series

0001 Option Identification (varies from machine to machine)

†Models designated “PN”use the S-Series Microcomputer.

‡Models designated “MC”are prepared for use with an aftermarket coin meter.

B024S

SC35MN2CU20001

380 - 415 5

00000000000

50 43

35 16 470

500000

8F238000

Section 2 Introduction

How Your Washer-Extractor Works

The design of the machine emphasizes performance reliability and long service life.

In washer-extractor sizes up through the 50-pound models, the cylinder is supported with two sealed

bearings mounted in a machined cast iron trunnion. Bearing housings are bolted to a heavy gamma frame

for all models.

The 2-speed machines use one dual-speed motor to drive the cylinder using a V-belt drive in wash and

extract speeds.

The 3-speed 18-pound models use one triple-speed motor to drive the cylinder at wash, medium extract

and high extract speeds. The 3-speed 35-pound and 50-pound models use one single-speed and one dual-

speed motor to drive the cylinder at wash, medium extract and high extract speeds.

Variable speed washer-extractors use one motor to drive the cylinder. In all models, the motor is driven

using a flat belt drive.

A door-lock system prevents opening of the stainless steel door when a cycle is in progress. It also

prevents operation of the machine when the door is open.

An electrically operated drain valve is used to retain the water and wash solution in the machine during

the wash and rinse steps. The drain valve closes when power is applied and opens when power is

removed, allowing the machine to drain in the event of a power failure.

The cylinder is designed with lifters or ribs that lift the garments from the wash solution when the

cylinder rotates at slow speed and allow the garments to tumble back into the solution. The cylinder is

perforated, allowing the water to pass through and drain from within during the wash and extract cycles.

Electrical controls for the machine are housed in a separate enclosure located underneath the top cover of

the machine.

The polypropylene supply dispenser is located under a flexible cover on the left side of the machine,

viewed from the front. The compartments are numbered 1–3, starting from the left side of the machine. A

nozzle flushes dry supplies from the compartment with water at the appropriate time in the cycle.

Liquid supplies can be injected directly into the dispenser compartments by a customer-supplied external

chemical supply system. Hose barbs on the rear of the machine facilitate connection to an external

chemical supply system. A terminal strip in the input power junction box provides control signals.

F238000 9

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

•Disconnect electric power to the washer-extractor before servicing.

•Never start the washer-extractor with any guards/panels removed.

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

reconnected to ensure that the washer-extractor is properly grounded.

W171

WARNING

Section 3

Troubleshooting

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

1. MACHINE WON’T START

2. MACHINE DOES NOT OPERATE AT WASH SPEED

3. MOTOR RUNS, BUT CYLINDER ROTATES SLOWLY, OR NOT AT ALL

POSSIBLE CAUSE TO CORRECT

No current to machine. •Check main fuse or circuit breaker on power supply

•Check control circuit fuse on the control module.

•Check for broken or disconnected electrical wires.

Door handle switch defective. •Check door handle switch operation. Make sure that the

door handle switch lever arm has completely depressed

the switch. Adjust or replace as required.

POSSIBLE CAUSE TO CORRECT

No current to motor through wash contactor. •Check and replace wash contactor as required.

Motor thermal protector tripped. •Automatically resets after 15-30 minutes. Check reason

for overheating.

Motor defective. •Check motor leads and ensure that motor receives power.

If power is correct replace motor if necessary.

Loose or worn drive belts. •Replace belts and/or check tension.

Cylinder jammed by foreign objects. •Check for free rotation by hand. Remove foreign object

(may require disassembly of machine).

POSSIBLE CAUSE TO CORRECT

Loose or worn drive belts. •Replace belts and/or check tension spring.

Motor pulley loose or off motor shaft. •Check pulley –tighten set screw or bushing. If necessary,

replace with new key.

Drive belt broken. •Check and replace drive belt.

10 F238000

Section 3 Troubleshooting

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

•Disconnect electric power to the washer-extractor before servicing.

•Never start the washer-extractor with any guards/panels removed.

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

reconnected to ensure that the washer-extractor is properly grounded.

W171

WARNING

4. WASH MOTOR RUNS CONTINUOUSLY IN ONE DIRECTION

5. MOTOR DOES NOT OPERATE AT SPIN SPEED

6. MOTOR MOMENTARILY STARTS ON AND OFF IN SPIN

7. MACHINE WILL NOT FILL WITH WATER

POSSIBLE CAUSE TO CORRECT

Drain valve stays open. •Check drain valve.

Level will not build up in machine. •Check level switch function and drain valves.

Level switch not satisfied or activated. •Check level switch function.

Water overflows through overflow. •Check level switch function.

POSSIBLE CAUSE TO CORRECT

Spin contactor defective. •Check coils and contactor functions. Replace contactor as

required.

Thermal overload protector in motor tripped. •Automatically resets after 15-30 minutes. If not, replace

motor. Investigate reason for overheating.

Water level switch has not reset. •Check level switch, replace as necessary. Check air

chamber and hoses to switch.

Drain will not open. •Check drain valve —might be stuck in closed position.

POSSIBLE CAUSE TO CORRECT

Machine is not draining fast enough. •Check drain valve and drain system of the machine and

facility.

POSSIBLE CAUSE TO CORRECT

No water from service lines. •Check shut-off valves on main supply.

Clogged inlet valve strainers. •Remove supply hoses and check strainers in valves —

clean if clogged.

Defective inlet valves. •Check solenoids for proper function.

•Check diaphragm and plunger —replace with kit if

necessary.

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