American Dish ASQ Service Manual

Effective: June, 2008

© 05/08

American Dish Service

ADS MODEL ASQ

GLASSWASHER

SERVICE MANUAL

900 Blake Street

Edwardsville, Kansas 66111

(913)-422-3700

IMPORTANT:

American Dish Service provides this information as a service to our customers.
Keep all instructions for future reference. Although ADS will make every effort to
make sure the information in this service manual is correct and up-to-date, ADS
does not certify that this is the case, and should you decide to utilize this manual,
you do so at your own risk. ADS reserves the right to alter or update this
information at any time without notice. Should you desire to make sure that you
have the most up-to-date information, we would direct you to the appropriate
document on our website: www.AmericanDish.com
guidelines in this owners manual are given with the assumption that the
dishwasher has been installed, operated, and maintained properly and in
accordance with all applicable Codes, Ordinances, and Safety requirements.
Failure to install, operate, and maintain the machine in this manner will void the
ADS Warranty. ADS assumes no liability or control over the installation,
maintenance (service), or operation of the equipment. Product failure due to
improper installation, maintenance, and operation is not covered under the ADS
Warranty.

. The instructions and

WARNING:

During the operation of all dishmachines, chemicals, high voltage electricity, and
normal operational functions can cause harm, bodily injury, or worse if proper
installation, operation, and maintenance are not observed. It is imperative that
the operator(s) are trained in the operation and made aware of the hazards that
can exist. This is the responsibility of the owner of this equipment. When
installing, operating, or maintaining your dishwasher you must follow all
applicable safety requirements, including the wearing of approved personal
protective equipment.

TABLE OF CONTENTS

1.0 GENERAL

2.0 OPERATOR PROCEDURE

3.0 INSTALLATION

4.0 CHEMICALS

5.0 PREVENTIVE MAINTENANCE

6.0 TROUBLESHOOTING

7.0 REPAIR PROCEDURES

8.0 REPLACEMENT PARTS

1.0 GENERAL

The Model ASQ Glass washing machine is intended for under counter insta llation in bars
and restaurants. The unit has a circular rack divided into three compartments. This rack
is indexed manually so that one compartment is at the back of the machine in the wash
zone while the other two compartments are used for loading and unloading. The machine
uses liquid chemicals for sanitizing, rinse-aid and detergent.

During the first part of the cycle detergent is metered and the machine washes glasses.
It then drains and pre-rinses. Fresh water continues to flow into the machine until the
sump is full and the recirculating pump starts for the pumped rinse. Chlorine based
sanitizing chemicals are introduced during the rinse. When the cycle is complete the
rinse water remains in the machine to serve as wash water for the following load.

The rack is manually indexed bringing freshly washed glasses to the front compartment
and taking soiled glassware into the wash compartment. When the cycle start button is
pressed the next cycle begins.

Chemicals are stored in the front compartment accessible through the main door.
Electrical controls are enclosed in a cabinet on this door for accessibility. A small heater
maintains wash temperature when there are long periods between cycles.

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2.0 OPERATOR PROCEDURES

2.1 DAILY START-UP

The following procedure should be
followed at the beginning of each
shift:

1. Inspect spray arm, screen and
sump (1) for cleanliness.

2. Inspect chemical containers to
insure an adequate supply for the
entire shift.

3. Turn on power switch (Green) at
the front of the machine.

4. Depress the fill button on the side
of the control cabinet until the

machine begins its cycle.

5. When the machine has finished
its first cycle check the water
temperature (2). If it has not
reached 120° F. (49°C.) then
press the cycle start button on
the front of the machine (Red).
Repeat this procedure until water
is at the proper temperature.

6. Load the first glasses into the left
hand side of the carousel.
Unlatch and rotate the carousel
1/3 revolution.

7. Press the cycle start button
(Red).

8. Subsequent loads of soiled
glasses may be placed on the
left hand side of the carousel

and clean glasses may be
removed from the right hand
side of the carousel while the
machine is in operation.

2.2 DAILY MAINTENANCE

At the end of his shift the operator should do the following (See Figure 2.2.1):

1. Drain water from the machine using the drain switch inside the door.

2. Remove the hood top (1) by lifting up approximately 1 inch and pulling
forward.

3. Remove the carousel by lifting approximately 1 ½ inches and pulling
forward.

4. Remove the splash shields (2) on either side of the carousel pivot by
pulling up at the center and sliding inward.

5. Remove the spray arm (3) by lifting it off the pivot.

6. Remove the scrap screen (4) and dispose of accumulated debris.

7. Thoroughly clean the inside of the sump and drain pan as well as all
removed parts.

8. Clean the spray arm.

9. Reassemble in reverse order.

10. Refill with water.

3.0 INSTALLATION

Adjust height and level of the machine

(See Section 7.1.3).

Connect the machine (1) to a
separately fused 20 amp circuit using
½ inch Sealtite. All electrical work
shall conform to the current edition of
the National Electric Code or to
applicable local codes, whichever is
most stringent. Check building wiring
for proper polarity and grounding.

Connect the fresh water inlet (2) to a

suitable source of hot water. Source
must be capable of supplying 140° F.
(60° C.) water with a recovery rate of
50 GPH.

Connect tail piece (3) to drain.
Place chemical suction tubes in their

proper containers.

RED – DETERGENT
GREEN – SANITIZER
BLUE – RINSE-AID

3.1 START-UP

Perform the following start-up

procedures. This should be done by a

qualified service representative.

1. Check voltage rating on name
plate (4) and confirm that electrical
supply is correct.

2. Visually inspect machine for
defects, shipping damage or
improper installation.

3. Prime chemical pumps
(See Figure 2.1.2).

4. Adjust chemical pump delivery in accordance with the recommendations of

Section 4.0 and 7.4.3.

5. Fill and operate machine. Insure that water level is correct and all components
work properly. Water level may be checked at the clear plastic tube inside the
front compartment.

6. Wash several loads. Insure that chemicals are metered in the appropriate
quantities and that glasses are clean.

7. Re-check for leakage at plumbing or cabinet.

8. Confer with owner to insure that he understands the operation and is
satisfied with the start-up.

3.2 WARRANTY

Record Model #, Serial #, and other necessary information on Warranty Card

and forward to:

AMERICAN DISH SERVICE

900 BLAKE STREET

EDWARDSVILLE, KS 66111-3820

4.0 CHEMICALS

All ADS machines require detergent and sanitizer for proper operation. A rinse-aid

may be used if desired.
Selection of the proper chemicals and the correct amounts will depend on several

factors. Proper selection is vital if optimum results are to be realized. It may be
necessary to change chemicals or adjust the quantity after the initial selection.

4.1 DETERGENT

Detergent is used to “emulsify” grease and loosen soil. Emulsification is a process
which breaks down grease into very small particles which then mix with water. The
detergent also reduces surface tension of the water to dissolve soluble matter.

The detergent selected must be designed for low-temperature dishwashing. Always
use established brands.

The proper quantity of detergent may vary over a wide range, and depends on the
following factors:

1. Water hardness.

2. Type and amount of grease.

3. Length of time the dishes stand.

4. Iron content of water.

5. Detergent formulation.
For this reason, your chemical distributor should be consulted to determine the amount

which will give good results with lowest detergent usage. Your distributor should u se th e
Hatch Test Kit to test water hardness before making a recommendation. After the
machine has been in use or if conditions change, the setting can be readjusted for
optimum results.

4.2 SANITIZER

Sanitizer should be 6% solution of sodium hypochlorite. Initial setting is 5cc and
this should be checked periodically with a Chlorine Test Kit. Free chlorine in the
final rinse should be 50ppm or more.

4.3 RINSE-AID

Rinse-aid reduces surface tension and causes the rinse water to run off in sheets
rather than collect in droplets. This exposes more water surface to the air which
allows the glasses to dry faster and prevents spot formation.

The optimum amount of rinse-aid varies depending on many of the same factors
that affect detergent usage. Consult your chemical supplier and use
nationally recognized brands.

5.0 PREVENTIVE MAINTENANCE

The machine should be inspected
approximately once a month. The
following steps will prevent many
costly repairs.

1. Check that Operator Procedures
have been followed.

2. Inspect spay arm hub (1) for
tightness and spray arm for free
rotation (See Section 7.2.0).

3. Assemble machine and check for
distortion of sheet metal parts,
ease of assembly and proper
operation of carousel and
latch (2). Check for proper gap
between carousel and splash
guards (See Section 7.1.1).

4. Using manual fill switch (3), check
fill rate and water level.

5. During the machine cycle, check
the following:
a. Leakage at vacuum breaker
or cabinet.
b. Timer for proper operation.
c. Operation and flow of chemical
pumps.
d. Operation of pilot lights and
switches.

6. Remove control box cover (4)
and check the following:
a. Cycle counter and drive tube.
b. Chemical pumps and rotors
(lubricate if required).
c. Squeeze tubes.
d. Chemical intake and
discharge tubes.
e. Timer and switches.
f. Wiring for loose connections.

7. Inspect door hinges and latch.

TROUBLESHOOTING INDEX

DESCRIPTION

6.0 TROUBLESHOOTING

Machine Will Not Operate – Green Light Off
Machine Will Not Operate – Green Light On
Cycle Will Not Resume After Wash
Machine Repeats Cycle
Pump Motor Will Not Operate
Pump Will Not Stop - Timer Is In Neutral
Motor Stops After Short Time
Recirculating Pump Leaks
Noisy Recirculating Pump
Low or Unsteady Pump Pressure
Detergent Pump Will Not Operate
Detergent Pump Will Not Stop
Sanitizer Pump Will Not Operate
Sanitizer Pump Will Not Stop
Rinse-Aid Pump Will Not Operate
Rinse-Aid Pump Will Not Stop
Chemical Does Not Flow
Heater Will Not Shut Off
Heater Will Not Operate
Fill Water Will Not Stop
Machine Does Not Fill
Water Leaks From Vacuum Breaker
Spray Arm Does Not Spin Properly
Glasses Not Clean – But Machine Operates
Excessive Foaming

DIAGRAMS

Electrical Component Identification
Interconnection Diagram with Chemical Alert
Ladder Diagram with Chemical Alert
Interconnection Diagram without Chemical Alert
Ladder Diagram without Chemical Alert

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91-0001
91-0002
91-0003
91-9004

6.0 TROUBLESHOOTING

Scope – This section should be used to isolate problems if the machine malfunctio ns.
When a diagnosis has been made and confirmed, refer to Section 7.0 for repair
procedures.

ALWAYS turn off Power Switch when removing or replacing electrical covers.
ALWAYS use extreme care when checking voltages.
ALWAYS turn off Power Switch and disconnect circuit breaker or fuses before

making electrical repairs.

To use the troubleshooting charts, find the chart which describes the problem best
in the upper left hand corner. A series of questions is asked and should be answered
“YES” or “NO”. This answer leads to the next question until the problem is isolated and
a repair is described. When the electrical control system is involved, a portion of the
circuit diagram is included on the chart to assist in understanding.

Unless otherwise stated, voltage measurements should be taken from the
neutral buss.

CAUTION