Note: Contin u in g research results in steady improvements; therefore, information
in this manual is subject to change without notice.
Note: Only instructions originating from the factory or its authorized translation
representative(s) are considered to be the o riginal set of instructions.
E February, 1996 Taylor (Original Publication)
(Updated December, 2011)
All rights reserved.
050271-M
The word Taylor and the Crown design
are registered trademarks in the United States
of America and certain other countries.
Model 490Table of Contents
Taylor Company
750 N. Blackhawk Blvd.
Rockton, IL 61072
Section 1To the Installer
The following are general installation instructions.
For complete installation details, please see the
check out card.
Installer Safety
In all areas of the world, equipment should
be installed in accordance with existing local codes.
Please contact your local authorities if you have any
questions.
Care should be taken to ensure that all basic safety
practices are followed during the installation and
servicing activities related to the installation and
service of Taylor equipment.
SOnly authorized Taylor service personnel
should perform installation and repairs on
the equipment.
SAuthorized service personnel should consult
OSHA Standard 29CFRI910.147 or the
applicable code of the local area for the
industry standards on lockout/tagout
procedures before beginning any installation
or repairs.
SAuthorized service personnel must ensure
that the proper PPE is available and worn
when required during installation and
service.
SAuthorized service personnel must remove
all metal jewelry, rings, and watches before
working on electrical equipment.
The main power supply(s) to the freezer
must be disconnected prior to performing any
repairs. Failure to follow this instruction may result in
personal injury or death from electrical shock or
hazardous moving parts as well as poor
performance or damage to the equipment.
Note:Allrepairsmustbeperformedbyan
authorized Taylor Service Technician.
cause severe injuries.
Site Preparation
Review the area where the unit will be installed
before uncrating the unit. Make sure all possible
hazards to the user or equipment have been
addressed.
For Indoor Use Only: This unit is designed to
operate indoors, under normal ambient
temperatures of 70_-75_F(21_-24_C). The freezer
has successfully performed in high ambient
temperatures of 104_(40_C) at reduced capacities.
where a water jet or hose can be used. NEVER use
a water jet or hose to rinse or clean the unit. Failure
to follow this instruction may result in electrocution.
to avoid the hazard of tipping. Extreme care should
be taken in moving this equipment for any reason.
Two or more persons are required to safely move
this unit. Failure to comply may result in personal
injury or equipment damage.
Uncrate the unit and inspect it for damage. Report
any damage to your Taylor Distributor.
This piece of equipment is made in the USA and has
USA sizes of hardware. All metric conversions are
approximate and vary in size.
This unit has many sharp edges that can
This unit must NOT beinstalledinanarea
This unit must be installed on a level surface
081208
Model 490To the Installer
1
Air Cooled Units
DO NOT obstruct air intake and discharge openings:
Air cooled units require a minimum of 6” (152 mm)
of clearance on both sides of the freezer. It is
recommended to place the rear of the unit against
the wall to prevent recirculation of warm air. Failure
to allow adequate clearance can reduce the
refrigeration capacity of the freezer and possibly
cause permanent damage to the compressors.
Water Connections
(Water Cooled Units Only)
Electrical Connections
In the United States, this equipment is intended to
be installed in accordance with the National
Electrical Code (NEC), ANSI/NFPA 70-1987. The
purpose of the NEC code is the practical
safeguarding of persons and property from hazards
arising from the use of electricity. This code contains
provisions considered necessary for safety. In all
other areas of the world, equipment should be
installed in accordance with the existing local codes.
Please contact your local authorities.
FOLLOW YOUR LOCAL ELECTRICAL CODES!
Each unit requires one power supply for each data
label on the unit. Check the data label(s) on the
freezer for branch circuit overcurrent protection or
fuse, circuit ampacity, and other electrical
specifications. Refer to the wiring diagram provided
inside of the electrical box for proper power
connections.
An adequate cold water supply must be provided
with a hand shut-off valve. On the underside rear of
the base pan, two 3/8” I.P.S. (for single-head units)
or two 1/2” I.P.S. (for double-head units) water
connections for inlet and outlet have been provided
for easy hook-up. 1/2” inside diameter water lines
should be connected to the machine. (Flexible lines
are recommended, if local codes permit.) Depending
on local water conditions, it may be advisable to
install a water strainer to prevent foreign substances
from clogging the automatic water valve. There will
be only one water “in” and one water “out”
connection for both single-head and double-head
units. DO NOT install a hand shut-off valve on the
water “out” line! Water should always flow in this
order: first, through the automatic water valve;
second, through the condenser; and third, through
the outlet fitting to an opentrapdrain.
A back flow prevention device is
required on the incoming water connection side.
Please refer to the applicable National, State, and
local codes for determining the proper configuration.
CAUTION: THIS EQUIPMENT MUST BE
PROPERLY GROUNDED! FAILURE TO DO SO
CAN RESULT IN SEVERE PERSONAL INJURY
FROM ELECTRICAL SHOCK!
This unit is provided with an equipotential
grounding lug that is to be properly attached to the
rear of the frame by the authorized installer. The
installation location is marked by the equipotential
bonding symbol (5021 of IEC 60417-1) on both the
removable panel and the equipment's frame.
SStationary appliances which are not
equipped with a power cord and a plug or
another device to disconnect the appliance
from the power source must have an all-pole
disconnecting device with a contact gap of
at least 3 mm installed in the external
installation.
110328
2
Model 490To the Installer
SAppliances that are permanently connected
to fixed wiring and for which leakage
currents may exceed 10 mA, particularly
when disconnected or not used for long
periods, or during initial installation, shall
have protective devices such as a GFI, to
protect against the leakage of current,
installed by the authorized personnel to the
local codes.
SSupply cords used with this unit shall be
oil-resistant, sheathed flexible cable not
lighter than ordinary polychloroprene or
other equivalent synthetic
elastomer-sheathed cord (Code designation
60245 IEC 57) installed with the proper cord
anchorage to relieve conductors from strain,
including twisting, at the terminals and
protect the insulation of the conductors from
abrasion.
Beater Rotation
Refrigerant
In consideration of our environment, Taylor
proudly uses only earth friendly HFC refrigerants.
The HFC refrigerant used in this unit is R404A. This
refrigerant is generally considered non-toxic and
non-flammable, with an Ozone Depleting Potential
(ODP) of zero (0).
However, any gas under pressure is potentially
hazardous and must be handled with caution.
NEVER fill any refrigerant cylinder completely with
liquid. Filling the cylinder to approximately 80% will
allow for normal expansion.
Refrigerant liquid sprayed onto the skin may
cause serious damage to tissue. Keep eyes and skin
protected. If refrigerant burns should occur, flush
immediately with cold water. If burns are severe,
apply ice packs and contact a physician
immediately.
Beater rotation must be clockwise as viewed
looking into the freezing cylinder.
Note: The following procedures must be performed
by an authorized Taylor service technician.
To correct the rotation on a three-phase unit,
interchange any two incoming power supply lines at
freezer main terminal block only.
To correct rotation on a single-phase unit, change
the leads inside the beater motor. (Follow the
diagram printed on the motor.)
Electrical connections are made directly to the
terminal block provided in the main control box.
Taylor reminds technicians to be cautious of
government laws regarding refrigerant recovery,
recycling, and reclaiming systems. If you have any
questions regarding these laws, please contact the
factory Service Department.
WARNING: R404A refrigerant used in
conjunction with polyolester oils is extremely
moisture absorbent. When opening a refrigeration
system, the maximum time the system is open must
not exceed 15 minutes. Cap all open tubing to
prevent humid air or water from being absorbed by
the oil.
081121
Model 490To the Installer
3
Section 2To the Operator
The freezer you have purchased has been carefully
engineered and manufactured to give you
dependable operation. The Taylor Model 490, when
properly operated and cared for, will produce a
consistent quality product. Like all mechanical
products, it will require cleaning and maintenance. A
minimum amount of care and attention is necessary
if the operating procedures outlined in this manual
are followed closely.
The Operator's Manual should be read before
operating or performing any maintenance on your
equipment.
The Model 490 will NOT eventually compensate and
correct for any errors during the set-up or filling
operations. Thus, the initial assembly and priming
procedures are of extreme importance. It is strongly
recommended that personnel responsible for the
equipment's operation, both assembly and
disassembly, sit down together and go through
these procedures in order to be properly trained and
to make sure that no misunderstandings exist.
In the event you should require technical assistance,
please contact your local authorized Taylor
Distributor.
Note: Warranty is valid only if the parts are
authorized Taylor parts, purchased from an
authorized Taylor Distributor, and the required
service work is provided by an authorized Taylor
service technician. Taylor reserves the right to deny
warranty claims on equipment or parts if
non-approved parts or refrigerant were installed in
the machine, system modifications were performed
beyond factory recommendations, or it is determined
that the failure was caused by neglect or abuse.
Note: Constant research results in steady
improvements; therefore, information in this
manual is subject to change without notice.
If the crossed out wheeled bin symbol is
affixed to this product, it signifies that this product is
compliant with the EU Directive as well as other
similar legislation in effect after August 13, 2005.
Therefore, it must be collected separately after its
use is completed, and cannot be disposed as
unsorted municipal waste.
The user is responsible for returning the product to
the appropriate collection facility, as specified by
your local code.
For additional information regarding applicable local
laws, please contact the municipal facility and/or
local distributor.
Compressor Warranty Disclaimer
The refrigeration compressor(s) on this machine are
warranted for the term indicated on the warranty
card accompanying this machine. However, due to
the Montreal Protocol and the U.S. Clean Air Act
Amendments of 1990, many new refrigerants are
being tested and developed, thus seeking their way
into the service industry. Some of these new
refrigerants are being advertised as drop-in
replacements for numerous applications. It should
be noted that, in the event of ordinary service to this
machine's refrigeration system, only the refrigerant
specified on the affixed data label should be
used. The unauthorized use of alternate refrigerants
will void your compressor warranty. It will be the
owner's responsibility to make this fact known to any
technician he employs.
It should be noted, that Taylor does not warrant the
refrigerant used in its equipment. For example, if the
refrigerant is lost during the course of ordinary
service to this machine, Taylor has no obligation to
either supply or provide its replacement either at
billable or unbillable terms. Taylor does have the
obligation to recommend a suitable replacement if
the original refrigerant is banned, obsoleted, or no
longer available during the five year warranty of the
compressor.
Taylor will continue to monitor the industry and test
new alternates as they are being developed. Should
a new alternate prove, through our testing, that is
would be accepted as a drop-in replacement, then
the above disclaimer would become null and void.
To find out the current status of an alternate
refrigerant as it relates to your compressor warranty,
call the Taylor Distributor or the Taylor Factory. Be
prepared to provide the Model/Serial Number of the
unit in question.
070112
4
Model 490To the Operator
Section 3Safety
We, at Taylor Company, are concerned about the
safety of the operator when he or she comes in
contact with the freezer and its parts. Taylor has
gone to extreme efforts to design and manufacture
built-in safety features to protect both you and the
service technician. As an example, warning labels
have been attached to the freezer to further point
out safety precautions to the operator.
IMPORTANT - Failure to adhere to the
following safety precautions may result in
severe personal injury or death. Failure to
comply with these warnings may damage the
machine and its components. Component
damage will result in part replacement expense
and service repair expense.
DO NOT operate the freezer without
reading this Operator Manual. Failure to follow this
instruction may result in equipment damage, poor
freezer performance, health hazards, or personal
injury.
Per IEC 60335-1 and its part 2 standards, “This
appliance is to be used only by trained personnel. It
is not intended for use by children or people with
reduced physical, sensory, or mental capabilities, or
lack of experience and knowledge, unless given
supervision or instruction concerning the use of the
appliance by a person responsible for their safety.”
This unit is provided with an equipotential
grounding lug that is to be properly attached to the
rear of the frame by the authorized installer. The
installation location is marked by the equipotential
bonding symbol (5021 of IEC 60417-1) on both the
removable panel and the equipment's frame.
SDO NOT operate the freezer unless it is
properly grounded.
SDO NOT operate the freezer with larger
fuses than specified on the freezer data
label.
SAll repairs must be performed by an
authorized Taylor service technician. The
main power supplies to the machine must
be disconnected prior to performing any
repairs.
SCord Connected Units: Only Taylor
authorized service technicians may install a
plug on this unit.
SStationary appliances which are not
equipped with a power cord and a plug or
another device to disconnect the appliance
from the power source must have an all-pole
disconnecting device with a contact gap of
at least 3 mm installed in the external
installation.
SAppliances that are permanently connected
to fixed wiring and for which leakage
currents may exceed 10 mA, particularly
when disconnected or not used for long
periods, or during initial installation, shall
have protective devices such as a GFI, to
protect against the leakage of current,
installed by the authorized personnel to the
local codes.
SSupply cords used with this unit shall be
oil-resistant, sheathed flexible cable not
lighter than ordinary polychloroprene or
other equivalent synthetic
elastomer-sheathed cord (Code designation
60245 IEC 57) installed with the proper cord
anchorage to relieve conductors from strain,
including twisting, at the terminals and
protect the insulation of the conductors from
abrasion.
DO NOT use a water jet to clean or rinse
the freezer. Failure to follow these instructions may
result in serious electrical shock.
Model 490Safety
Failure to follow these instructions may result in
electrocution. Contact your local authorized Taylor
Distributor for service.
110328
5
SDO NOT allow untrained personnel to
operate this machine.
SDO NOT operate the freezer unless all
service panels and access doors are
restrained with screws.
SDO NOT remove any internal operating
parts (example: freezer door, beater,
scraper blades, etc.) unless all control
switches are in the OFF position.
Failure to follow these instructions may result in
severe personal injury from hazardous moving parts.
This unit has many sharp edges that can
cause severe injuries.
SDO NOT put objects or fingers in the door
spout. This may contaminate the product
and cause severe personal injury from blade
contact.
SUSE EXTREME CAUTION when removing
the beater asssembly. The scraper blades
are very sharp.
Cleaning and sanitizing schedules are
governed by your state or local regulatory agencies
and must be followed accordingly. Please refer to
the cleaning section of this manual for the proper
procedure to clean this unit.
DO NOT obstruct air intake and discharge openings:
6” (152 mm) minimum air space is required on both
sides. It is recommended to place the rear of the unit
against the wall to prevent recirculation of warm air.
Failure to follow this instruction may cause poor
freezer performance and damage to the machine.
For Indoor Use Only: This unit is designed to
operate indoors, under normal ambient
temperatures of 70_ -75_F(21_ -24_C). The
freezer has successfully performed in high ambient
temperatures of 104_(40_C) at reduced capacities.
NOISE LEVEL: Airborne noise emission does not
exceed 78 dB(A) when measured at a distance of
1.0 meter from the surface of the machine and at a
height of 1.6 meters from the floor.
This freezer must be placed on a level
surface. Failure to comply may result in personal
injury or equipment damage.
The “Mix Low” light is located on the front of the
machine. When the light is flashing, it indicates that
the mix hopper has a low supply of mix and should
be refilled as soon as possible. The Model 490
utilizes a “Mix Out” light. When flashing, it indicates
there is no mix in the hopper and the compressor
stops running until mix is replenished. This
eliminates possible damage to the beater, blades,
drive shaft and door.
Overload Mechanism
The overload mechanism protects the beater motor
from an overload condition. Should an overload
occur, the overload mechanism will discontinue
machine operation. To properly reset the freezer,
place the control switch in the “OFF” position. Allow
the unit to cool. Place the control switch in the
“WASH” position and observe the freezer's
performance.
Note: If an overload condition occurs while the unit
is operating in the “AUTO” mode, the unit will not
return to the “AUTO” mode once the overload has
reset. The draw handle must be lifted before the unit
will return to AUTO. Likewise, if power is restored to
a unit following a power interruption, it is necessary
to raise the draw handle to resume “AUTO”
operation.
The overload is inherent in the beater motor. There
is no manual reset.
Model 490Important: To the Operator
9
Section 6Operating Procedures
The Model 490 stores 20 quarts (18.9 liters) of mix
in the hopper. The mix flows by gravity through an
air tube down into the freezing cylinder.
Instructions begin when we enter the store in the
morning and find the parts disassembled and laid
out to air dry from the previous night's cleaning.
The following procedures will show you how to
assemble the parts into the freezer, sanitize them,
and prime the freezer with fresh mix in preparation
to serve your first product.
If you are disassembling the machine for the first
time, or need information to get to this starting point
in our instructions, turn to the “Disassembly”
instructions in this manual and start there.
Assembly
Note: When lubricating parts, use an approved food
grade lubricant (Example: Taylor Lube).
Step 1
Install the drive shaft. Slide the o-ring into the first
groove on the drive shaft. Lubricate the groove and
the shaft portion that comes in contact with the
bearing on the beater drive shaft. Slide the seal over
the shaft and groove until it snaps into place. DO
NOT lubricate the hex end of the drive shaft. Fill the
inside portion of the seal with 1/4” more lubricant
and evenly lubricate the flat side of the seal that
comes in contact with the bearing.
Insert the drive shaft through the rear shell bearing
in the freezing cylinder and engage the hex end
firmly into the gear box coupling.
Figure 4
Step 2
Install the beater assembly. First check the
scraper blades for any nicks or signs of wear. If any
nicks are present, replace the blade(s).
Figure 3
Figure 5
Note: To prevent costly damage, the hole on the
scraper blade must fit securely over the pin.
10
Model 490Operating Procedures
If blades are in good condition, install the scraper
blade clips on the scraper blades. Place the rear
scraper blade over the rear holding pin on the beater
(knife edge to the outside). Holding the rear blade on
the beater, slide the assembly into the freezing
cylinder halfway, tail end first. Install the front
scraper blade over the front holding pin. Slide the
beater assembly completely into the freezing
cylinder.
Step 3
Install the draw valve. Slidethe two o-rings into the
grooves on the draw valve and lubricate the bottom
1/2 of the valve.
Figure 8
Figure 6
Make sure the beater assembly is in position over
the drive shaft. Turn the beater slightly to be certain
that the beater is properly seated. When in position,
the beater will not protrude beyond the front of the
freezing cylinder.
Figure 7
Lubricate the inside of the freezer door spout, top
and bottom, and insert the draw valve into the
freezer door from the top. It will be necessary to
rotate the draw valve to the right when assembling
the door to the freezer.
Figure 9
090807
Model 490Operating Procedures
11
Step 4
Install the freezer door. Place the freezer door
gasket into the groove on the back of the freezer
door. Slide the front bearing over the baffle rod so
the flanged edge is against the door. DO NOT
LUBRICATE THE GASKET OR BEARING.
Figure 10
Insert the baffle rod through the beater in the
freezing cylinder. With the door seated on the
freezer studs, install the handscrews. Tighten
equally in a criss-cross pattern to insure the door is
snug.
Rotate the draw valve bracket to the left and center
it into position by raising the draw arm and placing it
into the slotted groove of the draw valve bracket.
Note: The draw valve bracket must be positioned
with the notch to the left.
Figure 12
Step 5
Lay the air tube and hopper gasket in the bottom of
the mix hopper.
090807
Figure 11
12
Figure 13
Model 490Operating Procedures
Step 6
Slide the center drip pan into the hole in the front
panel.
Figure 14
Step 7
Install the front drip tray and splash shield under the
door spout.
Sanitizing
Step 1
Prepare an approved 100 PPM sanitizing solution
(examples: 2-1/2 gal. [9.5 liters] of Kay-5Ror 2
gal. [7.6 liters] of Stera-SheenR). USE WARM WATER AND FOLLOW THE MANUFACTURER'S
SPECIFICATIONS.
Step 2
Pour the sanitizing solution into the hopper, and
allow it to flow into the freezing cylinder.
Figure 15
Figure 16
Step 3
While the solution is flowing into the freezing
cylinder, brush clean the hopper. In cleaning the mix
hopper, take particular care in brushing the mix level
sensing probes, the mix inlet hole and the air tube.
080507
Model 490Operating Procedures
13
Step 4
Place the control switch in the “WASH” position.
This will cause the sanitizing solution in the freezing
cylinder to agitate. Allow the solution to agitate for
five minutes.
Figure 17
Step 5
Place an empty pail beneath the door spout and
raise the draw arm. Draw off all the sanitizing
solution. When the sanitizer stops flowing from the
door spout, lower the draw arm and place the control
switch in the “OFF” position.
Priming
Prime the machine as close to the time of first
product draw as possible.
Step 1
With a mix pail beneath the door spout, raise the
draw arm. Pour two gallons (7.6 liters) of FRESH
mix into the hopper and allow it to flow down into the
freezing cylinder. This will force out any remaining
sanitizing solution. When full strength mix is flowing
from the door spout, lower the draw arm.
Figure 19
Note: You have just sanitized the freezer;
therefore, be sure your hands are sanitized
before going on in these instructions.
Step 6
Assemble the hopper gasket around the top edge of
the mix hopper. Stand the air tube in the corner of
the mix hopper.
Figure 18
Step 2
When the mix has stopped bubbling down into the
freezing cylinder, and the mix out probe is satisfied,
install the air tube in the mix inlet hole.
Figure 20
Step 3
Fill the hopper with mix. As the mix level comes in
contact with the mix level sensing probe on the wall
of the hopper, the “MIX LOW” light will extinguish.
14
Model 490Operating Procedures
Step 4
Place the control switch in the “AUTO” position.
Rotate the draw valve and lift the draw arm to start
the compressor. When the unit cycles off, the
product will be at serving temperature.
Figure 21
Step 5
Place the mix hopper cover in position.
Note: When drawing product, gently raise the draw
arm to the fully opened position.
Draining Product from the Freezing
Cylinder
Step 1
Place the control switch in the “OFF” position.
Step 2
Remove the hopper cover, gasket, and air tube.
Take these items to the sink for cleaning.
Step 3
If local health codes permit the use of rerun,
place a sanitized, NSF approved stainless steel
rerun container beneath the door spout. Place the
control switch in the “WASH” position and raise the
draw arm. When all the product stops flowing from
the door spout, lower the draw arm and place the
control switch in the “OFF” position. Place the
sanitized lid on the rerun container and place it in
the walk-in cooler. See page 18 for instructions
regarding the proper use of rerun.
Closing Procedures
To disassemble the Model 490, the following items
will be needed:
STwo cleaning pails
SSanitized stainless steel rerun can with lid
SNecessary brushes (provided with freezer)
SCleaner
SSingle service towels
Note: IflocalhealthcodesDO NOTpermittheuse
ofrerun,the productmustbediscarded. Follow the
instructions in the previous step, except drain the
product into a mix pail and properly discard the mix.
ALWAYS FOLLOW LOCAL HEALTH CODES.
090807
Model 490Operating Procedures
15
Rinsing
Disassembly
Step 1
Pour two gallons (7.6 liters) of cool, clean water into
the mix hopper. With the brushes provided, scrub
the mix hopper, mix inlet hole, and mix level sensing
probes.
Step 2
With a mix pail beneath the door spout, place the
control switch in the “WASH” position and raise the
draw arm. Drain all the rinse water from the freezing
cylinder. When the rinse water stops flowing from
the door spout, lower the draw arm and place the
control switch in the “OFF” position.
Repeat this procedure until the rinse water being
drawn from the freezing cylinder is clear.
Cleaning
Step 1
Prepare an approved 100 PPM cleaning solution
(examples: 2-1/2 gal. [9.5 liters] of Kay-5Ror 2
gal. [7.6 liters] of Stera-SheenR). USE WARM WATER AND FOLLOW THE MANUFACTURER'S
SPECIFICATIONS.
Note: Failure to remove, brush clean and air dry
these items, will result in damage to the related
components.
Step 1
BE SURE THE CONTROL SWITCH IS PLACED IN
THE “OFF” POSITION.
Step 2
Remove the handscrews, freezer door, gasket, front
bearing, beater, scraper blades, and drive shaft from
the freezing cylinder. Take these items to the sink
for cleaning.
Step 3
Remove the drip pan from the machine.
Note: If the drip pan is filled with an excessive
amount of mix, this indicates that the drive shaft seal
and o-ring should be replaced or was improperly
lubricated.
Step 4
Remove the front drip tray and splash shield.
Brush Cleaning
Step 2
Pour the cleaning solution into the hopper and allow
it to flow into the freezing cylinder.
Step 3
While the solution is flowing into the freezing
cylinder, brush clean the mix hopper, mix inlet hole
and mix level sensing probes.
Step 4
Place the control switch in the “WASH” position.
This will cause the cleaning solution in the freezing
cylinder to agitate.
Step 5
Place an empty mix pail beneath the door spout and
raise the draw arm. Draw off all the cleaning
solution. When the solution stops flowing from the
door spout, lower the draw arm and place the control
switch in the “OFF” position.
Step 1
Prepare a sink with an approved 100 PPM cleaning
solution (examples: Kay-5Ror Stera-SheenR).
USE WARM WATER AND FOLLOW THE
MANUFACTURER'S SPECIFICATIONS.
If an approved cleaner other than Kay-5R or SteraSheenRis used, dilute according to label instructions. IMPORTANT: Follow label directions. Too
STRONG of a solution can cause parts damage,
while too MILD of a solution will not provide adequate cleaning. Make sure all brushes provided with
the freezer are available for brush cleaning.
Step 2
Remove the seal and o-ring from the drive shaft.
Step 3
Remove the scraper blade clips from the scraper
blades.
080507
16
Model 490Operating Procedures
Step 4
Remove the draw valve from the freezer door.
Remove the two o-rings from the draw valve.
Note: To remove o-rings, use a single service towel
to grasp the o-ring. Apply pressure in an upward
direction until the o-ring pops out of its groove. With
the other hand, push the top of the o-ring forward,
and it will roll out of the groove and can be easily
removed. If there is more than one o-ring to be
removed, always remove the rear o-ring first. This
will allow the o-ring to slide over the forward o-rings
without falling into the open grooves.
Step 5
Thoroughly brush clean all disassembled parts in the
cleaning solution, making sure all lubricant and mix
film is removed. Take particular care to brush clean
the draw valve core in the freezer door. Place all the
cleaned parts on a clean dry surface to air dry
overnight.
Step 6
Return to the freezer with a small amount of
cleaning solution. With the black bristle brush, brush
clean the rear shell bearing at the back of the
freezing cylinder.
Figure 22
Step 7
Using single service towels, wipe clean all exterior
surfaces of the freezer.
Model 490Operating Procedures
17
Section 7Important: Operator Checklist
During Cleaning and Sanitizing
ALWAYS FOLLOW LOCAL HEALTH CODES.
Cleaning and sanitizing schedules are governed
by federal, state, or local regulatory agencies,
and must be followed accordingly. If the unit
has a “Standby mode”, it must not be used in
lieu of proper cleaning and sanitizing
procedures and frequencies set forth by the
ruling health authority. The following check
points should be stressed during the cleaning
and sanitizing operations.
CLEANING AND SANITIZING MUST BE
PERFORMED DAILY.
Troubleshooting Bacterial Count
j 1. Thoroughly clean and sanitize the machine
regularly, including complete disassembly and
brush cleaning.
j 2. Use all brushes supplied for thorough
cleaning. The brushes are specially designed
to reach all mix passageways.
j 3. Use the white bristle brush to clean the mix
feed tube which extends from the hopper up
to the rear of the freezing cylinder.
j 6. Properly prepare the cleaning and sanitizing
solutions. Read and follow label directions
carefully. Too strong of a solution may
damage the parts and too weak of solution
may not do an adequate job of cleaning or
sanitizing.
j 7. The temperature of the mix in the mix hopper
and walk-in cooler should be below 40_F.
(4.4_C.).
Regular Maintenance Checks
j 1. Rotate the scraper blades to allow both sides
of the knife edge to wear evenly. This will
contribute to self-sharpening and help
maintain fast, efficient freezing.
j 2. Replace scraper blades that are bent,
damaged, or worn down.
j 3. Before installing the beater, be certain that the
scraper blades are properly attached over the
beater pins, and into the blade clip.
j 4. Use the black bristle brush to thoroughly
clean the rear shell bearing located at the rear
of the freezing cylinder. Be sure to have a
generous amount of cleaning solution on the
brush.
j 5. IF LOCAL HEALTH CODES PERMIT THE
USE OF RERUN, make sure the mix rerun is
stored in a sanitized, covered stainless steel
container and used the following day. DO
NOT prime the machine with rerun. When
using rerun, skim off the foam and discard,
then mix the rerun with fresh mix in a ratio of
50/50 during the day's operation.
081121
j 4. Dispose of o-rings and seals that are worn,
torn, or fit too loosely, and replace with new
ones.
j 5. Check the rear shell bearing for signs of wear
(excessive mix leakage in rear drip pan) and
be certain it is properly cleaned.
j 6. Using a screwdriver and cloth towel, keep the
female drive socket and the rear shell bearing
free of lubricant and mix deposits.
18
Model 490Important: Operator Checklist
j 7. Follow all lubricating procedures as outlined in
“Assembly”.
j 8. On air-cooled units, check the condenser for
an accumulation of dirt and lint. Dirty
condensers will reduce the efficiency and
capacity of the machine. The condensers
should be cleaned monthly. Remove the side
panels to gain access to the condensers. Use
a soft brush to clean between the fins of the
condenser. Never use screwdrivers or other
metal probes to clean between the fins.
Note: For machines equipped with an air
filter, it will be necessary to vacuum clean the
filters on a monthly schedule.
j 9. On water-cooled units, check the water lines
for kinks or leaks. Kinks can occur when the
machine is moved back and forth for cleaning
or maintenance purposes. Deteriorated or
cracked water lines should be replaced only
by an authorized Taylor mechanic.
Winter Storage
To protect the freezer during the winter months
when the place of business is closed, it is important
that certain precautions be followed; particularly if
the building is to be left unheated and subject to
freezing conditions.
Disconnect the freezer from the main power source
to prevent possible electrical damage.
On water-cooled units, disconnect the water supply.
Use air pressure to blow out any remaining water in
the condensers. This is extremely important.
Failure to follow this procedure can cause severe
and costly damage to the refrigeration system.
Your local Taylor Distributor can perform this service
for you.
Wrap detachable parts of the freezer such as the
beater assembly and freezer door and place them in
a protected, dry place. Rubber trim parts and
gaskets can be protected by wrapping them with
moisture proof paper. All parts should be thoroughly
cleaned of dried mix or lubrication accumulations
which attract mice and other vermin.
051207
Model 490Important: Operator Checklist
19
Section 8Troubleshooting Guide
PROBLEMPROBABLE CAUSEREMEDYPAGE
REF.
1. No product being
dispensed (draw valve
a. Freeze-up in the mix inlet
hole.
open and machine in
“AUTO” mode).
b. Beater motor out on reset.b. Allow the motor to cool.
c. Beater rotating
counter-clockwise from
operator end.
d. Circuit breaker off or
blown fuse.
e. Inadequate mix in the mix
hopper.
2. Product too stiff.a. EVC control set
incorrectly.
b. Inadequate mix in hopper.b. Fill hopper with mix.
3. Product too soft.a. EVC control set
incorrectly.
b. Not enough air space
around unit.
c. Worn scraper blades.c. Replace regularly.
d. Dirty condenser.d. Clean monthly.
e. Out-of-date mix.e. Use only fresh mix.
4. Mix in mix hopper too
cold.
a. Temperature out of
adjustment.
a. Call service technician to
adjust mix hopper
temperature.
c. Contact service technician
to correct rotation to
clockwise from operator
end.
d. Turn breaker on or
replace fuse.
e. Fill mix hopper with mix.
a. Contact service
technician.
a. Contact service
technician.
b. Allow for adequate air flow
across the condenser.
a. Call service technician.
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9
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14
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14
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2
18
19
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5. Mix in mix hopper too
warm.
a. Temperature out of
adjustment.
b. Warm mix placed in
hopper.
c. Mix hopper cover or
gasket not in position.
20
a. Call service technician.
b. Mix should be below
40_F. (4.4_C.) when
placed in hopper.
c. Place cover and gasket in
position.
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18
15
Model 490Troubleshooting Guide
PROBLEMPROBABLE CAUSEREMEDYPAGE
REF.
6. Drive shaft stuck in the
drive coupling.
7. Freezing cylinder walls
scored.
8. Excessive mix leakage
into drive shaft drip pan.
a. Rounded corners of drive
shaft, coupling or both.
a. Call service technician to
correct cause and replace
the necessary
components. Do not
lubricate hex end of drive
shaft.
b. Mix and lubricant collected
in drive coupling.
c. Misalignment of rear
bearing plate.
b. Brush clean rear shell
bearing area regularly.
c. Contact service
technician.
a. Beater assembly bent.a. Call service technician to
repair or replace beater
and to correct cause of
insuffi- cient mix in
freezing cylinder.
b. Missing or worn front
bearing on freezer door.
a. Missing or worn drive
b. Install or replace front
bearing.
a. Install or replace regularly.
shaft seal on drive shaft.
b. Drive shaft seal installed
b. Install seal properly.
inside out.
c. Missing or worn drive
c. Install or replace regularly.
shaft o-ring.
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17
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23
23
10
10
9. Excessive mix leakage
from door spout.
10. No freezer operation after
placing the unit in “AUTO”.
d. Worn rear shell bearing.d. Call service technician to
replace rear shell bearing.
a. Missing or worn draw
a. Install or replace regularly.
valve o-rings.
b. Inadequate lubrication of
b. Lubricate properly.
draw valve o-rings.
c. Wrong type lubricant
being used (Example:
c. Use proper lubricant
(Example: Taylor Lube).
petroleum base lubricant).
a. Unit unplugged.a. Plug into wall receptacle.
b. Circuit breaker off or
blown fuse.
b. Turn breaker on or
replace fuse.
c. Beater motor out on reset.c. Allow the motor to cool.
d. The draw arm is not
activated.
d. After placing the freezer in
the AUTO mode, the draw
arm must be raised to
activate the AUTO cycle.
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23
11
10
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9
15
Model 490Troubleshooting Guide
21
PROBLEMPROBABLE CAUSEREMEDYPAGE
REF.
11. Product not feeding into
freezing cylinder.
a. Inadequate level of mix in
the mix hopper.
b. Mix inlet hole frozen.b. Mix hopper temperature
a. Fill the mix hopper with
mix.
needs adjustment. Call
service technician.
14
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22
Model 490Troubleshooting Guide
Section 9Parts Replacement Schedule
PART
DESCRIPTION
Scraper BladeX
Drive Shaft SealX
Drive Shaft O-RingX
Freezer Door GasketX
Front BearingX
Draw Valve O-RingX
White Bristle Brush, 3” x 7”Inspect & Replace
White Bristle Brush, 1-1/2”x2”Inspect & Replace
Black BristleBrush,1”x 2”Inspect & Replace
Double-Ended BrushInspect & Replace
EVERY
3MONTHS
EVERY
6MONTHS
if Necessary
if Necessary
if Necessary
if Necessary
ANNUALLY
Minimum
Minimum
Minimum
Minimum
070925
Model 490Parts Replacement Schedule
23
Section 10Parts List
UPDATE
REMARKSPARTS
WARR.
CLASS
NUMBER
DESCRIPTIONPART
+GUIDE-DRIP SEAL028992000
+NUT-BRASS BEARING028991000
+O-RING 1-1/16OD X .070 WALL018432000
BEARING-FRONT013116000
+WASHER-BEARING LOCK012864000
BEARING-REAR SHELL *PLASTIC*032511000
+BLADE-SCRAPER-PLASTIC 9-13/16L046237000
+CLIP-SCRAPER BLADE046238103
BEARING-UNIT-REAR 1 PULLEYSEEKIT A.-REAR BEARING UNIT