CUDA 2412 User manual

2412
AUTOMATIC PARTS WASHER
For technical assistance or the Kärcher dealer nearest you,
visit our website at www.CudaUSA.com
■ 1.043-356.0 ■ 1.043-379.0 ■ 1.043-357.0
OPERATING INSTRUCTIONS
MAINTENANCE INSTRUCTIONS
TURNTABLE
OIL SKIMMER
ON
89143840-1
9.801-125.0
8.914-384.0

CONTENTS
2
Cuda 2412 • 8.914-384.0 • Rev. 5/12
SECTION 1 Introduction and Safety
General Safety Information 4-5
Component Identification 6-7
SECTION 2 Installation
Before you Begin 8
Step 1: Make Electrical Connections 8
Step 2: Connect a Compressed-Air Line and Accessories 8
Step 3: Connect a Water Line 8-9
Step 4: Fill the Machine with Water and Add Detergent 9
SECTION 3 Operation
Main Operating Components 10-13
Detergents and Additives 13-14
Preparing the Machine for Use 14
Shutting Down the Machine 14
SECTION 4 Troubleshooting
Troubleshooting Guides 15-16
Troubleshooting the Electrical System 17
Testing Individual Components 18
SECTION 5 Maintenance and Repair
Maintaining the Machine 19
Repairing the Machine 20
Heating Element 20
Thermostat 21
Timers and Switches on the Control Panel 21
Torque Limiter 22
Turntable Motor 22-23
Using the Oil Skimmer System 23

3
CONTENTS
Cuda 2412 • 8.914-384.0 • Rev. 5/12
Model Number ______________________________
Serial Number ______________________________
Date of Purchase ____________________________
The model and serial numbers will be found on a decal attached to
the parts washer. You should record both serial number and date
of purchase and keep in a safe place for future reference.
Exploded View and Parts List, 115V Electrical Panel 24-25
Exploded View and Parts List, 230V Electrical Panel 26-27
Exploded View and Parts List, Front View 28-29
Exploded View and Parts List, Rear View 30-31
Exploded View and Parts List, Auto Fill, Detail Brush, Power Brush 32-33
Exploded View and Parts List, Filter Option 8.725-269.0 34
Oil Skimmer 35
WARRANTY

Cuda 2412 • 8.914-384.0 • Rev. 5/12
OPERATOR’S MANUAL AUTOMATIC PARTS WASHER
4
This manual is intended as a guide for safely install-
ing, operating and maintaining your Automatic Parts
Washer.
We reserve the right to make changes at any time
without incurring any obligation.
Owner/User Responsibility:
The owner and/or user must have an understanding
of the manufacturer’s operating instructions and warn-
ings before using this machine. Warning information
should be emphasized and understood. If the operator
is not fluent in English, the manufacturer’s instruc-
tions and warnings shall be read to and discussed
with the operator in the operator’s native language by
the purchaser/owner, making sure that the operator
comprehends its contents.
Owner and/or user must study and maintain for future
reference the manufacturers’ instructions.
This manual should be considered a permanent
part of the machine and should remain with
machine if resold.
When ordering parts, please specify model and
serial number.
GENERAL SAFETY
INFORMATION
CAUTION: To reduce the risk of
injury, read operating instruc-
tions carefully before using.
1. Read the owner’s manual
thoroughly. Failure to follow in-
structions could cause a mal-
function of the parts washer
and result in death, serious
bodily injury and/or property
damage.
2. Improper installation could cause serious injury
to the machine. All installations must comply with
local codes. Contact your electrician, plumber,
utility company or the selling distributor for specific
details.
3. The machine can only operate on the type of electri-
cal power indicated on the electrical specifications
tag. Operating the machine on any other power
supply will permanently damage the motors.
WARNING
READ OPERATOR’S
MANUAL
THOROUGHLY
PRIOR TO USE.
WARNING: Electrical shock
could cause serious injury
or death.
4. Install the machine in compli-
ance with the National Electric
Code, connect it to a properly
sized lockable disconnect and
ground the machine using
the grounding stud inside the
main electrical panel.
5. While operating the machine, keep all electri-
cal panels in place and securely fastened at all
times.
6. Disconnect the machine completely from the
outside power source before servicing.
WARNING: Hot, high pressure
cleaning solution could cause
serious injury.
7. Do not operate the machine
with the lid or door open and
do not override the safety
switch.
8. After the machine stops, wait
10 seconds before opening
the lid or door.
WARNING: Always wear
approved eye protection and
protective clothing while
operating machine.
9. Always wear rubber gloves
when loading and unload-
ing the machine or servicing
components in the processing
chambers or sumps.
WARNING: Slips and falls from wet surfaces could
cause serious injury.
10. Maintain an unobstructed work area around the
machine and keep the floor free of water, oil, grease
or other foreign substances.
This Automatic Parts Washer is designed to oper-
ate safely and efficiently with required maintenance.
Before you begin to install and use the machine, please
familiarize yourself with the major components.
WARNING
HIGH PRESSURE
SPRAY CAN PIERCE
SKIN AND TISSUES.
WARNING
PROTECTIVE
EYEWEAR AND
CLOTHING MUST
BE WORN.
WARNING
KEEP WATER SPRAY
AWAY FROM
ELECTRICAL WIRING.
SECTION 1: INTRODUCTION

Cuda 2412 • 8.914-384.0 • Rev. 5/12
5
AUTOMATIC PARTS WASHER OPERATOR’S MANUAL
WARNING
RISK OF EXPLOSION:
AVOID FLAMMABLE
LIQUIDS.
WARNING: Flammable liquids
can create fumes which can
ignite causing property damage
or severe injury.
12. Do not locate this machine in
the vicinity of any flammable
vapors, liquids or solids.
13. Before servicing the ma-
chine, refer to all MSDS’s on
the material identified in the waste stream. You
must comply with all warnings and wear all protec-
tive clothing stated on the MSDS.
14. When the machine is working, do not cover or
place in a closed space where ventilation is insuf-
ficient. Avoid installing machines in small confined
areas.
15. In cold climates, this parts washer will freeze if
not in operation and must be located in a heated
enclosure.
16. Running this machine without water will damage
the heating elements and will void the warranty.
WARNING: This is a heated parts cleaner. Use
only nonflammable, noncombustible, water-based
cleaning compounds in this machine. Do not fill or
contaminate with any flammable or combustible
material such as gasoline, alcohol, mineral spirits,
etc. Drain parts to be cleaned of any combustible
or flammable material before placing inside cabi-
net. Failure to observe this warning will create an
extremely hazardous condition.
17. All installations must comply with local codes.
Contact your electrician, plumber, utility company
or the selling distributor for specific details.
18. To protect the operator from electrical shock, the
machine must be electrically grounded. It is the
responsibility of the owner to connect this machine
to a grounded receptacle of proper voltage and
amperage ratings. Do not touch machine with wet
hands or while standing in water. Always discon-
nect the power before servicing.
19. Never make adjustments on machine while it is in
operation except those prescribed in this manual.
SECTION 1: INTRODUCTION & SAFETY
WARNING
EXTREMELY HOT:
USE CAUTION WHEN
OPENING LID.
WARNING: Use extreme
caution when opening the door
of this parts washer. Hot water/
detergent vapors will be emitted.
Stand Back!
20. Do not allow high concen-
trations of flammable flu-
ids, acids, or caustics to be
introduced into this machine.
This automatic parts washer is designed to operate
safely and efficiently. Before you begin to install and
use the machine, please familiarize yourself with the
major components.

Cuda 2412 • 8.914-384.0 • Rev. 5/12
OPERATOR’S MANUAL AUTOMATIC PARTS WASHER
6
89143840-2
9.801-125.0
SECTION 1: COMPONENT IDENTIFICATION - FRONT VIEW
Control Panel
Lid Support
Strut
Power Brush
(Optional)
Sump
Drain
Access
Panel
Lid
Handle
Detail
Brush
(Optional)
Debris Screen
Autofill
(Optional)

Cuda 2412 • 8.914-384.0 • Rev. 5/12
7
AUTOMATIC PARTS WASHER OPERATOR’S MANUAL
DANGER
HIGH VOLTAGE
WARNING
HOUR METER
KEEP
DRY
89143840-16
SECTION 1: COMPONENT IDENTIFICATION - REAR VIEW
Air Flow
Valve & Flow
Regulator
(Optional)
Heating Element
& Thermostat
Pump
Oil
Skimmer
Water
Inlet
(Optional)

Cuda 2412 • 8.914-384.0 • Rev. 5/12
OPERATOR’S MANUAL AUTOMATIC PARTS WASHER
8
SECTION 2: INSTALLATION
BEFORE YOU BEGIN
To prepare to install the machine, choose an unob-
structed, level site that allows convenient access for
operators and maintenance personnel. Sources for
water and electrical power should be located near the
installation site. If your machine is equipped with
the optional power brush and hand detail brush
you must also run a compressed air line to the
installation site.
If you have any questions regarding the installation,
please contact your distributor and have the machine
identification number available for the distributor to
reference. Your machine identification tag is located
inside the front cover of this manual for detailed machine
specifications.
STEP 1: MAKE ELECTRICAL
CONNECTIONS
NOTE: All electrical installation tasks must be per-
formed by a licensed, professional electrician to ensure
safe and proper operation.The installation must comply
with the National Electric Code and all applicable state
and local codes.
The machine can only operate on the type of electri-
cal power indicated on the machine identification tag.
Read and understand the machine identification tag
to determine the electrical power requirements before
installing the machine.
STEP 2: CONNECT A
COMPRESSED-AIR LINE AND
ACCESSORIES (OPTIONAL)
This step is required for machines equipped with
the optional power brush and hand detail brush.
If your machine does not have these options,
skip the following procedure.
NOTE: To ensure proper operation and to minimize
the possibility of premature component failure, make
sure the compressed air is supplied at 75 to 90 psi.
We also recommend an in-line moisture trap and
an in-line lubricator on the main air supply line.
Refer to the documentation provided with the power
brush for more information.
Step 1:
Remove the power brush from the box, install the wire
brush in the chuck, and connect the air hose.
Step 2:
Familiarize yourself with the three-way air flow valve
(See Figure Below), then install a fitting (if necessary)
to accommodate a connection to your compressed-air
supply.
Step 3:
Connect the shop compressed-air line to the
machine.
Step 4:
Connect the hose from the power brush to the air flow
valve.
Step 5:
Hang the power brush on the bracket mounted along
the right side of the machine.
STEP 3: CONNECT A
WATER LINE
This step is required for machines equipped with the
optional automatic water fill feature. If your machine
does not have this option, skip this step.
The optional automatic water fill feature automatically
maintains the correct water level in the sump. The fea-
ture requires that you connect the machine to a dedi-
cated water supply line.
To connect the machine to a water supply line, attach a
suitable burst-proof hose to the hose connection on the
rear of the machine (See Figure Below), then connect
the hose to a nearby water spigot.
NOTE: The machine is designed for portability, and
some maintenance tasks require that you move the
machine. DO NOT make a permanent connection from
your shop water supply to the machine.
To Power Brush
Connection
Line to
Detail
Brush
Pump
Compressed
Air
Connection
Hose
Connection
(Optional)

Cuda 2412 • 8.914-384.0 • Rev. 5/12
9
AUTOMATIC PARTS WASHER OPERATOR’S MANUAL
SECTION 2: INSTALLATION
STEP 4: FILL THE MACHINE
WITH WATER AND ADD
DETERGENT
Step 1:
Familiarize yourself with the low water shut-off system
on the left side of the machine (See Figures Below).
Step 2:
Fill the sump with water.
If your machine is equipped with the optional automatic
water fill feature, simply turn the water on; the automatic
water fill feature will automatically turn off the water
when the sump is full.
If your machine is not equipped with optional automatic
water fill feature, add water through the wash chamber
until the low water shut-off system indicates that the
sump is full. The sump capacity is 25 gallons.
Step 3:
Close the lid.
Step 4:
Flip the heater switch to the ON position.
The sump water will reach operating temperature
(160°-180°F Excludes 120V Version 1.043-356.0) in
approximately four hours.
To avoid having to wait for the wash solution to heat
up before you use the machine each day, install an
optional 24-hour 7-day heater timer. Refer to 24-hour,
7-day Heater Timer for more information.
IMPORTANT: Allow the sump water to reach operating
temperature before adding detergent and running the
machine. If you add detergent and run the machine
when the sump water is cool, the detergent will foam
excessively and could overflow the machine.
Step 5:
While the sump water is heating, add the appropriate
quantity of factory approved detergent to the wash
chamber. We recommend mixing the detergent with
warm water in a separate bucket/container and then
pouring the dissolved detergent into the sump.
NOTE: Factory approved detergent is the only detergent
approved for use with this automatic parts washer. It
is specially formulated with rust inhibitors and anti-
foaming agents to optimize performance and minimize
maintenance. The use of any other detergent during
the warranty period will void the warranty. In addition,
using factory detergents will extend your 90 day labor
warranty to 1 year.
Step 6:
Turn the wash cycle timer and allow the machine to
complete the cycle to dissolve the detergent into the
water.When the machine stops, it is ready for use. Refer
to Operation for complete operating instructions.
Magnet Aligned
w/Lower Switch
Magnet Aligned
w/Upper Switch

Cuda 2412 • 8.914-384.0 • Rev. 5/12
OPERATOR’S MANUAL AUTOMATIC PARTS WASHER
10
SECTION 3: OPERATION
MAIN OPERATING
COMPONENTS
Familiarize yourself with the main operating compo-
nents before operating the machine.
Control Panel
The control panel is located on the front center of the
lid. It contains the heater, wash cycle, turntable controls,
and low water indicator (See Figure Below).
Low Water Indicator
The low water indicator light illuminates if the wash
solution in the sump is low. For more information refer
to Low Water Shut-off System.
Turntable Switch
The turntable switch is an illuminated rocker switch that
enables you to disconnect power to the turntable motor.
Set to ON, the turntable rotates during the wash cycle.
Set to OFF, the turntable does not rotate during the
wash cycle.The switch is useful for washing large parts
that would otherwise impede turntable rotation.
Heater Control
The heater control is an illuminated rocker switch. It
controls the heating element in the sump chamber.
The heater control illuminates when the heating sys-
tem is on. The heating system is thermostatically set
at the factory to reach a high temperature of 180 °F
(Excludes 120VVersion 1.043-356.0).The temperature is
adjustable using the thermostat (See Thermostat).
NOTE: The machines contain an internal power relay
that automatically disconnects power to the heater
when the pump turns on; the heater and pump cannot
run simultaneously (120V only). After long wash cycles
it may be necessary to let the machine sit idle for a
period of time to allow the wash solution to reheat to
operating temperature.
Wash Cycle Control
The wash cycle control is a timer switch. When set, the
timer automatically shuts off the pump and turntable
when the wash cycle is complete.
Thermostat
The thermostat is located inside pump enclosure. The
thermostat is factory-set to heat the wash solution to
a maximum temperature of 180°F (Excludes 120V
Version 1.043-356.0).
Adjusting the Thermostat
To adjust the thermostat, rotate the adjustment screw
or knob clockwise to increase the temperature, or
counterclockwise to decrease the temperature (See
Figure Below).
24-hour, 7-day Heater Timer
A 24-hour, 7-day heater timer is available as an option
on these machines. The timer plugs directly into a 15-
amp outlet and automatically cycles the heating system
on and off each day. To configure the timer, refer to the
instructions printed on the back of the timer housing.
To order a 24-hour, 7-day heater timer, contact your
distributor or call customer service.
Lid Safety Switch
The lid safety switch is located behind the front left
lip of the lid, just below the control panel (See Figure
Below). The safety switch disconnects power to the
water pump and the turntable motor if the lid is raised
during operation.
89143840-3
Low Water
Indicator
Oil Skimmer
Timer w/Knob
Wash Cycle
Timer w/Knob
Turntable
Switch
Heater Switch
Adjustment
Screw
Decrease
Temperature
Increase
Temperature
89143840-3
Lid Safety
Switch (Located
Behind Lip)

Cuda 2412 • 8.914-384.0 • Rev. 5/12
11
AUTOMATIC PARTS WASHER OPERATOR’S MANUAL
SECTION 3: OPERATION
Turntable Assembly
The turntable assembly uses a torque arm mounted
on the underside of the lid to rotate the turntable (See
Figure Below).The torque arm includes a torque limiter
which prevents the turntable motor from burning out in
case a part falls off the turntable and obstructs rotation.
For information on adjusting the torque limiter, refer
to Torque Limiter. For information on replacing the
turntable motor, refer to Turntable Motor.
Removing the Turntable
To remove the turntable, grasp it evenly on opposite
sides and lift it free of the spindle.
Important: The turntable rotates on a thrust bearing
inside of the hub. As you lift the turntable free of the
spindle, take care not to jar the thrust bearing loose.
If the thrust bearing drops out of the hub, inspect it for
wear then either replace it or re-install it (See Previous
Figure).
Debris Screen
The debris screen is located below the turntable inside
of the wash chamber (See Figure Below). The debris
screen continuously filters debris particles from the
cleaning solution to ensure blockage free spray nozzle
operation, and also provides a safeguard against small
parts that might accidentally be washed through from
the wash chamber.
The frequency at which you must clean the debris
screen depends on machine usage. In general, you
should clean the screen before operating the machine
each day. To access and remove the screen you must
remove the turntable (see Removing the Turntable).
NOTE: Never operate the machine without the debris
screen in place. The screen is specially sized to filter
particles that could clog the spray nozzles or damage
the water pump. Operating the machine without the
debris screen in place could cause spray nozzle
clogging or water pump failure.
Air Flow Valve (Optional)
The air flow valve is located on the right rear corner of
the machine. It is a three-way ball valve that controls
the flow of compressed air to the power brush and the
hand detail brush (See Figure Below).
Power Brush (Optional)
The power brush is located on the right front corner of
the machine (See Figure Below). Refer to Connect a
Compressed-Air Line and Accessories for detailed
installation information.
NOTE: The power brush is available as an option on
this machine. For ordering information, contact your
distributor or call customer service.
Throttle
Lever Lock
Throttle
Lever
Holding
Bracket
Position #2 For
Power Brush
Position #1 For
Detail Brush
Compressed
Air In
89143840-4
Thrust
Bearing
Turntable
Turntable Drive
Bar
Torque Limiter

Cuda 2412 • 8.914-384.0 • Rev. 5/12
OPERATOR’S MANUAL AUTOMATIC PARTS WASHER
12
Using the Power Brush
WARNING: Particles dislodged by the power brush
could cause serious injury to your eyes. Always
wear approved eye protection when using the
power brush.
With stiff stainless steel bristles turning at 1800 RPM,
the power brush easily removes carbon deposits, old
gasket material, or other tightly-adhered materials from
parts before washing.
To turn on the power brush, position the air flow select
valve appropriately, then push the power brush lever
lock forward with your thumb and squeeze the throttle
lever to control the speed of the brush.
Detail Brush and Flow Regulator
(Optional)
The detail brush is located on the front inside wall of the
wash chamber.The flow regulator is located on the right
rear corner of the machine (See Following Figure).The
detail brush uses a continuous flow of hot cleaning solu-
tion through its nylon bristles to help you clean delicate
or lightly soiled parts. The flow regulator controls the
flow of cleaning solution through the detail brush.
WARNING: Hot, high-pressured cleaning solution
could cause serious injury. Always wear rubber
gloves and approved eye protection when handling
hot cleaning solution.
Adjusting the Flow of Cleaning Solution
The flow of cleaning solution through the detail brush is
pre-set at the factory. If you need to adjust the flow, pull
out the flow regulator knob, then rotate it clockwise to
decrease the flow or counter-clockwise to increase the
flow. After adjusting, push the knob back in to lock it.
SECTION 3: OPERATION
NOTE: The detail brush is available as an option on
this machine. For ordering information, contact your
distributor or call customer service.
Automatic Oil Skimmer System
The automatic oil skimmer system consists of a
skimmer assembly that includes an electric motor
that rotates a disk in the sump water. The oil
adheres to the disk and is wiped off by wiper blades
and deposited in a container. The gear motor is
controlled by a timer switch on the control panel. See
information in Section 5 for detailed operation.
Skimmer
Disc
Skimmer
Motor
Skimmer
Collection
Container
Tank Wall
Flow
Regulator
Detail
Brush

Cuda 2412 • 8.914-384.0 • Rev. 5/12
13
AUTOMATIC PARTS WASHER OPERATOR’S MANUAL
SECTION 3: OPERATION
Low Water Shut-off System
The low water shut-off system shuts down the ma-
chine if the wash solution in the sump chamber drops
below a safe level. The system uses two reed switches
and a float rod mounted on the right outer wall of the
sump chamber to control the water level (See Figure
Below).
If the wash solution drops below the lower reed switch,
the low water indicator light on the control panel turns
on and the system disconnects power to the heating
element, the pump, and the turntable motor. To reset
the system, add water to the sump until the low water
indicator light turns off.
WATER LEVEL OK:
Both switches OPEN, Automatic
Water Fill Valve (if installed)
CLOSED, Heating Element ON.
LOW WATER LEVEL:
Top switch CLOSED, Bottom Switch
CLOSED, Automatic Water Fill Valve (if
installed) OPEN, Heating Element OFF.
SUMP FILLING:
Top switch CLOSED, Bottom Switch
OPEN, Automatic Water Fill Valve (if
installed) OPEN, Heating Element OFF.
Automatic Water Fill (Optional)
The automatic water fill system automatically maintains
a proper water level in the sump. It is available as on
option on these machines.
The automatic water fill system uses the low water shut-
off reed switches to open and close a water solenoid
valve, which automatically maintains a proper water
level in the sump.The figure above describes the opera-
tion of the automatic water fill system.
DETERGENTS AND
ADDITIVES
Detergents
Manufacturer's detergents are the only detergents
approved for use with our Automatic Parts washers.
They are specially formulated with rust inhibitors and
anti-foaming agents to optimize performance and
minimize maintenance. The use of any other detergent
during the warranty period will void the warranty.
To monitor the relative concentration of the detergent
in the wash solution, periodically examine the wash
solution in the sump chamber for the following
indicators:
• Rust inside the machine: not enough
detergent
• Excessive foaming: not enough detergent
• Thick, white residue on parts after
washing: too much detergent
To maintain proper detergent concentration under
typical operating conditions, add detergent each month
Magnet Aligned
w/Lower Switch
Magnet Aligned
w/Upper Switch

Cuda 2412 • 8.914-384.0 • Rev. 5/12
OPERATOR’S MANUAL AUTOMATIC PARTS WASHER
14
after cleaning the sump chamber. Follow recommended
detergent quantities. Use pH kit to determine the proper
amount of detergent to use. If you need help interpreting
test results, contact customer service.
Rust Inhibitor Additive
Factory detergents protect the entire inside of your
machine against the degenerative effects of water
evaporation. A rust inhibitor additive actually evapo-
rates with the water and continously coats and protects
metal surfaces, even while your machine is sitting idle.
For more information, contact your distributor or call
customer service.
PREPARING THE MACHINE
FOR USE
Before you begin to wash parts, it is important that you
properly prepare the machine. Before you begin to use
the machine each day:
•  checkthewaterlevelandaddwatertothesump
tank if necessary;
•  heatthewatertooperatingtemperature
•  adddetergentifnecessary(seeDetergents and
Additives);
• verifythatnoneofthespraynozzlesareclogged;
and
•  cleanthedebrisscreen.
WASHING PARTS
The following procedure assumes that the heater is on
and the sump water is at operating temperature.
To wash parts, perform the following procedure.
WARNING: Hot, high-pressured cleaning solution
could cause serious injury. Always wear rubber
gloves and approved eye protection when loading
and unloading the machine.
Step 1:
Load large, heavy parts directly onto the turntable. Load
small, light parts in the optional small parts basket, if
available. Make sure none of the parts extend beyond
the edge of the turntable and make sure large, light
parts (valve covers, for example) are secured to the
turntable.
SECTION 3: OPERATION
NOTE: For optimum cleaning performance, provide a
slight clearance between parts to allow adequate flow
of cleaning solution around and between them.
Step 2:
Close the lid.
NOTE: If you are washing large parts that might impede
turntable rotation, flip the turntable switch OFF.
Step 3:
Set the wash cycle timer.
Step 4:
When the machine stops, lift the lid and wait a few mo-
ments to allow the parts to cool and dry before removing
them. Most parts flash-dry in seconds.
SHUTTING DOWN THE
MACHINE
To shut down the machine at the end of the day:
•  setthewashcyclecontroltoOFF;
•  shut off the compressed air at the supply line
(if installed).
WARNING
• For periods of extended shut-down (weekends
and holidays, for example), disconnect power
to the machine.
• If your machine is equipped with an optional
programmable heater timer, periodically verify
the settings to prevent inadvertent unattended
operation.

Cuda 2412 • 8.914-384.0 • Rev. 5/12
15
AUTOMATIC PARTS WASHER Troubleshooting Guide
SECTION 4: TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
POOR
CLEANING
PERFORMANCE
Turntable switch is OFF Verify that the turntable switch is ON
(See Turntable Switch).
Parts are obstructing each other Check the position of parts on turntable;
position parts to allow flow of cleaning
solution around and between them.
Low water level in sump Check sump water level; add water if necessary.
Clogged or improperly aligned
spray nozzles
Check spray nozzles for obstructions and
alignment; clean and align if necessary
(See Cleaning and Aligning the Spray Nozzles).
Low detergent concentration
10-11 pH
Add 1-2 scoops of detergent and observe
cleaning performance; add 1-2 scoops
more if necessary. Measure pH.
Wash solution is not properly
heated
See wash solution is not heating
Pump is not operating properly See pump does not operate properly.
WASH
SOLUTION
NOT HEATING
Blown fuse Refer to Troubleshooting the Electrical System.
Low waterlevel in sump Check the water level in the sump; add water
if necessary (See Low Water Shut-Off).
Thermostat is incorrectly set Check thermostat setting; set to 180°
(See Adjusting the Thermostat).
Excess debris is built up around
heating element
Check for debris buildup around heating
element; clean out if necessary
(See Cleaning out the Sump).
Line voltage is too low Contact a licensed electrician to verify that the
incoming line voltage meets requirements.
Failed heater timer Test the heater timer; replace if necessary
(See Wash Cycle and Heater Timers).
Failed thermostat Test the thermostat; replace if necessary
(See Single Phase Thermostat, or
contact dealer to test a three-phase thermostat).
Failed heating element Test the heating element; replace if necessary
(See Single Heating Element, or contact
dealer to test a three-phase heating element).
FOAMING Machine operating with cold
water
Bring water up to correct temperature
Grease, high detergent motor
oils, transmission oil, gear lubes
Do not place oil pan or transmission
pan into machine without pouring oil out of it.
Not enough detergent Add more detergent, check pH level. Use defoamer.
WHITE
POWDER
ON PARTS
Solution is old Change sump water and recharge with
fresh detergent and vapor corrosion inhibitor.
Water hardness and TDS
(totally dissolved solids)
Use a water softener and/or change your sump
water more frequently.
Large parts can dry before
solutions runs off, leaving
powdery residue
Turn heat down to approximately 140°.

Cuda 2412 • 8.914-384.0 • Rev. 5/12
AUTOMATIC PARTS WASHER Troubleshooting Guide
16
PROBLEM POSSIBLE CAUSE SOLUTION
MACHINE FAILS
TO START WHEN
"WASHING PARTS"
PROCEDURE IS
FOLLOWED
Main power disconnect is off Verify that no service is being performed on the
machine, then turn the main power disconnect on.
Door is not closing properly Check the door latch and door safety switch; ad-
just if necessay (See Adjusting the Safety Switch).
Failed door safety switch Test the door closure safety switch; replace if
necessary (See Door Safety Switch).
Failed washer cycle timer Test the wash cycle timer; replace if necessary
(See Wash Cycle, Heater and Skimmer Timers).
Pump is not operating
properly
See pump does not operate properly section.
TURNTABLE DOES
NOT OPERATE
PROPERLY
Turntable switch is OFF Ensure that the turntable switch is in the on
position (See Turntable Switch).
Parts are obstructing
turntable rotation
Check for parts obstructing rotation of the
turntable; rearrange if necessary.
Worn thrust bearing Inspect the thrust bearing; replace if necessary
Torque limiter improperly set Verify the setting on the torque limiter; adjust if
necessary
Failed wash cycle timer Test the wash cycle timer; replace if necessary
(See Wash Cycle, Heater, and Skimmer Timers).
Failed start capacitor Test the start capacitor; replace if necessary
(See Start Capacitor).
Failed turntable motor Contact a licensed electrician to test the motor;
replace if necessary (SeeTurntable Motor).
PUMP DOES
NOT OPERATE
PROPERLY
Low water level in sump Check the water level in the sump; add water
if necessary (See Low Water Shut-Off System).
Pump intake is plugged Check pump intake for obstructions; clean out if
necessary.
Pump overload relay is tripped Reset the motor overload relay.
Blown fuse Check electrical panel for a blown fuse; replace if
necessary.
Line voltage is too low Contact a licensed electrician to verify that
the incoming line voltage meets requirements
as specified on the machine ID tag.
Pump is failed Contact a licensed electrician to test the pump;
replace if necessary.
MACHINE RUSTING
INTERIOR
Steam condensing on inside
of a lid
Leave lid open during idle periods.
Check soap concentration.
SECTION 4: TROUBLESHOOTING

Cuda 2412 • 8.914-384.0 • Rev. 5/12
17
AUTOMATIC PARTS WASHER Troubleshooting Guide
SECTION 4: TROUBLESHOOTING
TROUBLESHOOTING THE
ELECTRICAL SYSTEM
To troubleshoot the electrical sys-
tem use the following diagrams to
eliminate the possibility of a blown
fuse or a bad connection, then refer
to Testing Individual Components
to determine which component is
causing the problem.
WARNING: Electrical shock
could cause serious injury or
death.
• Electricaltroubleshootingshouldbeperformed
by qualified personnel only.
• Avoidcontactwithpowerleads,terminals,and
fuses when power is connected.
• Disconnectpowertomachinebeforeremoving
fuses or other electrical components.
WARNING
KEEP WATER SPRAY
AWAY FROM
ELECTRICAL WIRING.
Troubleshooting the Electrical Panel
None
▲ ▲ ▲▲
▲
▲
▲
▲
Power
ON
Power
OFF
Power
OFF
Power
OFF
Measure Voltage Across
L1 and N Terminals on
Junction Box
Electrical Panel is OK,
Check Main Power
Disconnect
Visibly Inspect Heater
Relay
Heater Relay is Blown;
Replace the Relay
Visibly Inspect Pump
Relay
Pump Relay is Blown;
Replace the Relay
Check the Blue and
Grey Terminal Blocks for
Loose Connections
Tighten Loose
Connections
Electrical Panel is
OK, Refer to Testing
Individual Components
110 to 120V
OK
OK
OK
Black or
Deformed
Black or
Deformed
Loose
89143840-5

Cuda 2412 • 8.914-384.0 • Rev. 5/12
AUTOMATIC PARTS WASHER Troubleshooting Guide
18
SECTION 4: TROUBLESHOOTING
TESTING INDIVIDUAL
COMPONENTS
NOTE: The following troubleshooting procedures re-
quire the use of a volt/ohm meter. If you are not familiar
with using a volt/ohm meter do not attempt to perform
the following troubleshooting procedures. If you need
assistance please contact your distributor.
Wash Cycle Timers
Step 1:
Disconnect power to the machine.
Step 2:
Disconnect all wires and remove the timer from the
control panel and (See Timers and Switches on the
Control Panel).
Step 3:
With the timer in the OFF position, test for continuity
using an ohm meter.
If there is continuity the timer is no longer functional;
replace the timer.
Step 4:
With the timer in the ON position, test for continuity
using an ohm meter.
If there is not continuity the timer is no longer functional;
replace the timer.
Heating Element
Step 1:
Disconnect power to the machine.
Step 2:
Remove the rear panel from the machine (four screws;
use a 5/16” wrench or socket – See Figure Below).
Step 3:
Detach the power leads from the heating element.
Step 4:
Use an ohm meter to measure the resistance of the
heating element. The resistance should be approxi-
mately 10 Ohms if not, replace the heating element
(See Heating Element).
Thermostat
Step 1:
Disconnect power to the machine.
Step 2:
Remove the rear panel from the machine (ten screws;
use a 5/16” wrench or socket ).
Step 3:
Detach the power leads from the thermostat.
Step 4:
Using a large flat-head screwdriver, pry the thermostat
out of the mounting bracket, then remove it from the
machine (See Figure Below).
Step 5:
Set the thermostat to 120°F, warm it to just above
120°F, then test for continuity.
If there is continuity the thermostat is no longer
functional; replace the thermostat.
Step 6:
Allow the thermostat to cool to room temperature, then
test for continuity.
If there is not continuity the thermostat is no longer
functional; replace the thermostat.
Screwdriver
Mounting
Bracket
Heating
Element
Power
Leads

2412 • 8.914-384.0 • Rev. 5/12
19
AUTOMATIC PARTS WASHER Maintenance Guide
SECTION 5: MAINTENANCE AND REPAIR
MAINTAINING THE MACHINE
To ensure optimum performance and trouble-free op-
eration, observe the following maintenance schedule
consistently.
Daily Maintenance
 •Checkthewaterlevel;addwaterifnecessary.
 •Cleanthedebrisscreen.
Weekly Maintenance
 • Detergent Concentration Level: Check detergent
level weekly to maintain concentration level, which
decreases when water is added.The pH level of this
detergent must be in accordance with the detergent
manufacturer's recommendation.
 •Removeoilandgreasefromthewashsolutionby
using the oil skimmer.
 • Foroilyorextremelysoiledparts,itisrecommended
the oil skimmer be operated on a more frequent
basis.
 •Examinespraynozzles;cleanandalignifneces-
sary (See Cleaning and Aligning the Spray
Nozzles).
 •Wipedowntheexteriorofthemachineusingspray
degreaser and a soft, damp cloth. TO PREVENT
ELECTRICAL COMPONENT FAILURE, DO NOT
SPRAY THE MACHINE WITH WATER.
NOTE: Degreaser spray and a damp cloth will usu-
ally remove all dirt and grime from the machine. For
particularly stubborn soap deposits, use a soft cloth
dampened with warm solution from the wash chamber.
Monthly Maintenance
 •Drain and clean out the sump chamber
(See Cleaning out the Sump).
Cleaning and Aligning the Spray Nozzles
To ensure optimum cleaning performance, it is important
that you examine the spray nozzles periodically and
clean and align them if necessary.
To clean a plugged nozzle, remove it from the spray pipe
and use a small wire brush to free the nozzle of any
obstructions.When you replace the nozzle on the spray
pipe, make sure you align it according to figure on the
following page to maintain a proper spray pattern.
NOTE: The spray nozzles are sized and positioned to
optimize the distribution of cleaning solution in the wash
chamber. If you remove the nozzles make sure you
replace them in the correct position on the appropriate
pipe. Spray nozzle specifications are stamped on the
face of each nozzle, as shown.
Align The Notch In
Each Spray Nozzle
With The Center Of
The Turntable
TOP & BOTTOM NOZZLES SIDE NOZZLES
Rotate Each Nozzle
Approximately 3°
From The Center Line
Of The Pipe
3°
Turntable C
L

Cuda 2412 • 8.914-384.0 • Rev. 5/12
AUTOMATIC PARTS WASHER Maintenance Guide
20
Cleaning out the Sump
Step 1:
Remove oil from the cleaning solution using the oil
skimmer.
Step 2:
Remove the debris screen.
Step 3:
Drain the wash solution from the sump chamber.
To drain the solution either use the sump drain
or a small submersible pump.
Step 4:
Remove sand and other debris from the bottom of the
sump chamber. To remove the debris either flush it
out through the sump drain, or vacuum it out using a
wet/dry vac. Dispose of the debris in accordance with
applicable local, state, and federal regulations.
NOTE: Take special care to ensure that the heating
element and the low-water float are free of debris.
A build up of debris around the heating element will
decrease heating performance and may cause the ele-
ment to overheat and fail. A build up of debris around
the float may cause the low water shut-off system to
malfunction (See Low Water Shutoff System)
Step 5:
Replace the debris screen.
Step 6:
Heat the wash water to operating temperature, then
add appropriate amount of factory detergent.
Step 7:
Run the machine through a 15-minute wash cycle.
REPAIRING THE MACHINE
The following procedures outline the steps necessary
to replace specific items on the machine that could
wear out or otherwise fail.
Heating Element
Required Tools and Equipment
  •5/16"wrenchorsocket
  •1-1/2"socketandbreakerbar
  •sealingtapeorcompound
  •mediumphillips-headscrewdriver
Replacement Procedure
Step 1:
Disconnect power to the machine.
Step 2:
Drain the wash solution from the sump.
SECTION 5: MAINTENANCE AND REPAIR
Step 3:
Remove the rear panel from the machine (four screws;
use a 5/16” wrench or socket – See Figure Below).
Step 4:
Detach the power leads from the heating element
(See Figure Below).
Step 5:
Using a 1-1/2" socket and breaker bar, unscrew the
heating element from the machine.
NOTE:Since the heating element is in continuous con-
tact with the cleaning solution the threads may corrode
slightly. The element may be difficult to remove. When
you install a new heating element, use sealing tape or
compound on the threads to deter corrosion, and be
sure to install the rubber gasket to prevent leakage.
Step 6:
Install the new heating element. Installation is the
reverse of removal.
Heating
Element
Power
Leads