Models 8751/8754
Pump Style
Soft Serve Freezers
Operating Instructions
056485--M
2/01/02
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Table of Contents
Section 1
To the Installer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
1
1
1
Water Connections (Water Cooled Units Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cooled Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 2
To the Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
2
3
Compressor Warranty Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 3
Section 4
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operator Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
4
5
6
7
8
9
Model 8751 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model 8754 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model 8751 Single Spout Door and Beater Assembly . . . . . . . . . . . . . . . . . . . . . .
Model 8754 Three Spout Door and Beater Assembly . . . . . . . . . . . . . . . . . . . . . .
Air/Mix Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 5
Important: To the Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Symbol Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
MIX REF Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
STANDBY Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
WASH Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
AUTO Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Pump Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Air/Mix Pump Reset Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Adjustable Draw Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Feed Tube (Back--up Option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table of Contents
Models 8751/8754
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Table of Contents -- Page 2
Section 6
Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Air/Mix Pump Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Priming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Closing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Draining Product From the Freezing Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Rinsing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Brush Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Section 7
Important: Operator Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
During Cleaning and Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Troubleshooting Bacterial Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Regular Maintenance Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
The Air/Mix Pump Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Winter Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Section 8
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Parts Replacement Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Section 9
Section 10
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Note: Continuing research results in steady improvements; therefore, information
in this manual is subject to change without notice.
Models 8751/8754
Table of Contents
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Section 1
To the Installer
This machine is designed for indoor use only.
Electrical Connections
Each freezer requires one power supply for each data
label. Check the data label(s) on the freezer for fuse,
circuit ampacity and electrical specifications. Refer to
the wiring diagram provided inside of the electrical box,
for proper power connections.
DO NOT install the machine in an area where
a water jet could be used to clean or rinse the machine.
Failure to follow this instruction may result in serious
electrical shock.
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. Compliance therewith and
proper maintenance will result in an installation
essentially free from hazard!
Water Connections
(Water Cooled Units Only)
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
open trap drain.
In all other areas of the world, equipment should be
installed in accordance with the existing local codes.
Please contact your local authorities.
Stationary appliances which are not equipped with a
power cord and a plug or other 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.
CAUTION: THIS EQUIPMENT MUST BE
PROPERLY GROUNDED! FAILURE TO DO SO
CAN RESULT IN SEVERE PERSONAL INJURY
FROM ELECTRICAL SHOCK!
Beater rotation must be clockwise as viewed looking
into the freezing cylinder of any model freezer.
Note: The following procedures should be
performed by a trained service technician.
To correct rotation on a three-phase unit, interchange
any two incoming power supply lines at freezer main
terminal block only.
Air Cooled Units
Air cooled units require a minimum of 3” (76 mm) of
clearance around all sides of the freezer to allow for
adequate air flow across the condenser(s). Failure to
allow adequate clearance can reduce the refrigeration
capacity of the freezer and possibly cause permanent
damage to the compressor.
To correct rotation on a single-phase unit, change the
leads inside the beater motor. (Follow diagram printed
on motor.)
Electrical connections are made directly to the
terminal block provided in the main control box located
behind the service panel.
050415
1
Models 8751/8754
To the Installer
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Section 2
To the Operator
The freezer you have purchased has been carefully
engineered and manufactured to give you dependable
operation. The Taylor Company soft-serve models
covered in this manual consist of the 8751 and 8754.
Compressor Warranty Disclaimer
These units, when properly operated and cared for, will
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.
produce
a
consistent quality product. Like all
mechanical products, they 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.
This Operator’s Manual should be read before
operating or performing any maintenance on your
equipment.
Your Taylor freezer will NOT eventually compensate
for and correct 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, go through these procedures together in
order to be properly trained and to make sure that no
confusion exists.
It should also 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.
In the event you should require technical assistance,
please contact your local authorized Taylor Distributor.
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 Taylor Company will continue to monitor the
industry and test new alternates as they are being
developed. Should a new alternate prove, through our
testing, that it 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 local Taylor Distributor
or the Taylor Factory. Be prepared to provide the
Model/Serial Number of the unit in question.
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.
050818
2
To the Operator
Models 8751/8754
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Section 3
Safety
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 servicetechnician.
As an example, warning labels have been attached to
the freezer to further point out safety precautions to the
operator.
S
S
DO NOT allow untrained personnel to
operate this machine.
DO NOT operate the freezer unless all
service panels and access doors are
restrained with screws.
S
S
DO NOT remove the door, beater and
blades, drive shaft, or air/mix pump unless
all control switches are in the OFF position.
IMPORTANT -- Failure to adhere to the
following safety precautions may result in severe
personal injury. Failure to comply with these
warnings may also damage the machine and its
components. Component damage will result in
part replacement expense and service repair
expense.
DO NOT put objects or fingers in door
spout.
Failure to follow these instructions may result in
contaminated product or severe personal injury to
fingers or hands from hazardous moving parts.
To Operate Safely:
USE EXTREME CAUTION when removing
the beater assembly. The scraper blades are very
sharp and may cause injury.
DO NOT operate the freezer without reading
this operator’s manual. Failure to follow this instruction
may result in equipment damage, poor freezer
performance, health hazards, or personal injury.
This freezer must be placed on a level
surface. Failure to comply may result in personal injury
or equipment damage.
DO NOT obstruct air intake and discharge openings.
The minimum required air space on all sides is 3”
(76 mm). Failure to follow this instruction may cause
poor freezer performance and damage to the
machine.
S
S
DO NOT operate the freezer unless it is
properly grounded.
DO NOT attempt any repairs unless the
main power supply to the freezer has been
disconnected.
S
DO NOT operate the freezer with larger
fuses than specified on the freezer data
label.
This freezer is designed to operate indoors, under
normal ambient temperatures of 70_-- 7 5 _F
(21_-- 2 4 _C). The freezer has successfully performed
in high ambient temperatures of 104_F (40_C) at
reduced capacities.
Failure to follow these instructions may result in
electrocution or damage to the machine. Contact your
local authorized Taylor Distributor for service.
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.
DO NOT use a water jet to clean or rinse the
freezer. Failure to follow this instruction may result in
serious electrical shock.
050415
Safety
3
Models 8751/8754
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Section 4
Operator Parts Identification
Model 8751
ITEM
DESCRIPTION
PART NO.
ITEM
DESCRIPTION
PANEL -SERVICE
PART NO.
1
2
3
4
5
6
7
8
9
COVER A.-HOPPER
GASKET-HOPPER COVER
LOUVER-SIDE
X38458
038375
017471
X33237
022822
024426
X39075
022763
013690
10
11
12
13
14
15
16
17
047170
018794
X18915
048203
X24424
027503
028823
048435
CASTER-SWV
ADAPTOR·A.-CASTER
PANEL- REAR
PANEL·A.-FRONT
STUD-NOSE CONE
PANEL A.-LOWER SIDE
PAN - DRIP 11 5/8 LONG
PANEL-UPPER SIDE RIGHT
PAN-DRIP *PUMP
PANEL-UPPER SIDE
PANEL A.-SIDE-LOWER-LOUV
SHIELD-SPLASH
TRAY- DRIP 14 7/8 X 5 1/8
4
Operator Parts Identification
Models 8751/8754
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Model 8754
ITEM
DESCRIPTION
PART NO.
ITEM
DESCRIPTION
TRAY-DRIP
PART NO.
1
2
3
4
5
6
7
8
COVER A.-HOPPER
GASKET-HOPPER COVER
PAN-DRIP 17-1/4”LONG
PANEL-UPPER SIDE L
STUD-NOSE CONE
X38458
038375
027504
028822
022822
X32956
X46447
022766
9
10
11
12
13
14
15
16
014533
046584
018794
X18915
X46448
028823
017471
053782
PANEL- SERVICE
CASTER-SWV
ADAPTOR A.-CASTER
PANEL A.-SIDE-LOWER R
PANEL-UPPER SIDE RIGHT
LOUVER-SIDE
PANEL A.-FRONT
PANEL A.-SIDE *LOWER L
SHIELD-SPLASH
PANEL- REAR
5
Models 8751/8754
Operator Parts Identification
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Model 8751 Single Spout Door and Beater Assembly
ITEM
DESCRIPTION
PART NO.
ITEM
DESCRIPTION
PART NO.
1
HANDLE A.-DRAW-ADJ.
X55096
028804
9
10
11
12
13
14
15
16
17
18
19
O-RING-3/8 OD X .070W
PIN A.-PIVOT
016137
X22820
1a HANDLE-ADJUSTABLE
1b SCREW-ADJUSTMENT
1c O-RING-1/4 OD X .070W 50
1d NUT-JAM
055092
GASKET-DOOR HT 4”-DOUBLE 048926
BEARING-FRONT-SHOE 050348
SHOE-FRONT HELIX *FRONT* 050347
015872
029639-BLK
021508
2
3
4
5
6
7
8
NUT-STUD
SHOE-FRONT HELIX *REAR*
BEATER A.-3.4QT-1 PIN
050346
X46231
046236
DOOR A.-1 SPOUT *VALOX*
VALVE A.-DRAW
X51531-10
X18303
014402
CLIP-SCRAPER·BLADE*7”
O-RING-7/8 OD X .103W
BLADE-SCRAPER-PLAS. 8-1/8 046235
CAP-DESIGN-1.010”ID-6 POINT 014218
SHAFT-BEATER
032564
032560
O-RING-5/16 OD X .070W
PLUG-PRIME
016272
028805
SEAL-DRIVE SHAFT
6
Operator Parts Identification
Models 8751/8754
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Model 8754 Three Spout Door and Beater Assembly
ITEM
DESCRIPTION
HANDLE A.- DRAW
PART NO.
ITEM
DESCRIPTION
DECAL-DOOR
PART NO.
1
X55096
028804
055092
015872
029639-BLK
034382
034383
X18303
014402
032564
032560
014218
9
10
11
12
13
021521
X51532-12
X20683
016272
048926
050348
050346
050347
X46231
046235
1a DRAW HANDLE
1b SCREW-ADJUST
1c O-RING 1/4OD X .070W
1d NUT-JAM
DOOR A.- 3-SPOUT
ROD A.- PIVOT
O-RING 5/16OD X .070W
GASKET-DOOR HT 4”
2
3
4
5
6
7
8
NUT-STUD FLAT LONG
NUT-STUD FLAT SHORT
VALVE A.- DRAW
14a BEARING-FRONT
14b SHOE-FRONT HELIX *REAR*
14c SHOE-FRONT HELIX *FRONT*
O-RING 7/8OD X .070W
SHAFT-BEATER
15
16
17
BEATER A.-3.4QT-1 PIN
BLADE-SCRAPER-PLASTIC
SEAL-DRIVE SHAFT
CAP-DESIGN
CLIP-SCRAPER·BLADE*7.00·IN 046236
7
Models 8751/8754
Operator Parts Identification
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Air/Mix Pump
ITEM
DESCRIPTION
PART NO.
ITEM
DESCRIPTION
PART NO.
1
2
TUBE A.--MIX INLET--HOPPER
SEAL--AIR INLET FITTING
SPRING--TAPERED 1--7/8
POPPET--RUBBER BLACK
BODY A.--COAX VALVE
X45318
045327
022456
022473
X46860-B
020051
018664
045319-B
X36950
044641
020050
X39084
12a O--RING 1/2 ID X .139 W--206
12b O--RING 1-3/4 OD X .139 W
048632
008904
033215
X44755
3
13
14
15
16
RING--CHECK 1-1/4 OD X 3/8
CYLINDER A.--PUMP HT
4
5
O--RING 11/16 OD X .103 W--RED 016132
PIN--COTTER HAIRPIN 1/8 DIA. 044731
6
O--RING 2-1/8 OD X .139 W
O--RING 1-3/8 OD X .103 W
PISTON--COAX PUMP
7
TUBE A.--FEED--HPR PUMP SS L X44662
(8754)
8
TUBE A.--FEED--HPR PUMP SS R X44664
(8754)
9
PIN A.--COAX PUMP HT SS
CLIP--MIX PUMP RETAINER
RING--CHECK 2” OD X 1/2
SHAFT A.--DRIVE MIX PUMP
17
18
10
11
12
TUBE A.--HT PUMP FEED SS
(8751)
X44666
O--RING 3/4 OD X .103 W
015835
8
Operator Parts Identification
Models 8751/8754
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Accessories
ITEM
DESCRIPTION
PART NO.
ITEM
DESCRIPTION
PART NO.
1
2
3
4
5
BRUSH--MIX PUMP BODY
BRUSH--DOUBLE ENDED
BRUSH--REAR BEARING
BRUSH--DRAW VALVE
023316
013072
013071
013073
047518
6
7
SANITIZER--KAY 5 (125 PKTS)
PAIL--MIX 10 QT.
041082
013163
KIT A.--TUNE UP (MODEL 8751) X49463--9
KIT A.--TUNE UP (MODEL 8754) X49463--19
8
LUBRICANT--TAYLOR 4 OZ.
9
Models 8751/8754
Operator Parts Identification
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Section 5
Important: To the Operator
8751
8754
ITEM
DESCRIPTION
ITEM
DESCRIPTION
1
2
3
4
5
MIX LOW INDICATOR LIGHT
MIX REFRIGERATION KEY
STANDBY KEY
6
7
8
9
PUMP KEY
POWER ON/OFF (TOGGLE)
RESET BUTTON -- BEATER MOTOR
RESET BUTTON -- PUMP
WASH KEY
AUTO KEY
10
Important: To the Operator
Models 8751/8754
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Symbol Definitions
MIX REF Key
To better communicate in the International arena,
symbols have replaced words on many of our operator
switches, function, and fault indicators. Your Taylor
equipment is designed with these International
symbols.
When the MIX REF key is pressed, the light comes on
indicating the mix hopper refrigeration system is
operating. For the Model 8754 the MIX REF is
controlled by the left side of the freezer as viewed from
the operator end. The MIX REF function cannot be
cancelled unless the AUTO or STANDBY modes are
cancelled first.
The following chart identifies the symbol definitions.
= OFF
= ON
STANDBY Key
= MIX
The Separate Hopper Refrigeration System (SHR)
and the Cylinder Temperature Retention System
(CTR) are standard features. The SHR incorporates
the use of a separate small refrigeration system to
maintain the mix in the hopper below 40_(4.4_C) to
assure bacteria control. The CTR works with the SHR
to maintain a good quality product. During long “No
Sale” periods, it is necessary to warm the product in
the freezing cylinder to approximately 35_F to 40_F
(1.7_C to 4.4_C) to prevent overbeating and product
breakdown.
= STANDBY
= WASH
= AUTO
= PUMP
Power Switch
To activate the SHR and CTR, press the STANDBY
key. Remove the air orifice and place the air tube (end
without the hole) into the mix inlet hole.
When placed in the ON position, the power switch
allows SOFTECH control panel operation.
When the STANDBY key is pressed, the light comes
on, indicating the CTR (Cylinder Temperature
Retention System) has been activated. In the
STANDBY mode, the WASH and AUTO functions are
automatically cancelled. The MIX REF function is
automatically locked in to maintain the mix in the
hopper.
Indicator Lights
Located on the front of the machine is a mix level
indicating light. When the light begins to flash, it
indicates that the mix hopper has a low supply of mix
and should be refilled as soon as possible. Always
maintain at least 3” (76 mm) of mix in the hopper. If you
neglect to add mix, a freeze-up may occur. This will
cause eventual damage to the beater, blades, drive
shaft, and freezer door.
To resume normal operation, press the AUTO key.
When the unit cycles off, the product in the freezing
cylinder will be at serving viscosity. At this time, place
the air tube (end with the hole) into the mix inlet hole
and install the air orifice.
11
Models 8751/8754
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If the beater motor is turning properly, press the WASH
key to cancel the cycle. Press the AUTO key to resume
normal operation. If the freezer shuts down again,
contact a service technician. (For the Model 8754
press the AUTO key on both sides of the unit toresume
normal operation.)
WASH Key
When the WASH key is pressed, the light comes on.
This indicates beater motor operation. The STANDBY
or AUTO modes must be cancelled first to activate the
WASH mode.
AUTO Key
Air/Mix Pump Reset Mechanism
When the AUTO key is pressed, the light comes on.
This indicates that the main refrigeration system has
been activated. In the AUTO mode, the WASH or
STANDBY functions are automatically cancelled. The
MIX REF function is automatically locked in to
maintain the mix in the mix hopper.
The reset button for the pump is located in the service
panel. The reset protects the pump from an overload
condition. Should an overload occur, the reset
mechanism will trip. To reset the pump, press the reset
button firmly.
Note: An indicating light and an audible tone will
sound whenever a mode of operation has been
pressed. To cancel any function, press the key again.
The light and mode of operation will shut off.
Adjustable Draw Handle
These units feature an adjustable draw handle to
provide the best portion control. The draw handle
should be adjusted to provide a flow rate of 5 to 7-1/2
oz. (148 to 222 ml) of product per 10 seconds. To
INCREASE the flow rate, turn the screw
Pump Key
When the PUMP key is pressed, the light comes on,
indicating the air/mix pump will operate as required.
COUNTERCLOCKWISE.
Turn
the
screw
CLOCKWISE to DECREASE the flow rate. During
“Sanitizing” and “Rinsing”, the flow rate can be
increased by removing the pivot pin and placing the
restrictive bar on the TOP. When drawing product,
always place the restrictive bar on the bottom.
Reset Button
The reset button is located in the service panel on the
front of the machine. The reset protects the beater
motor from an overload condition. If an overload
occurs, the reset mechanism will trip. To properly reset
the freezer, press the AUTO key to cancel the cycle.
Turn the power switch to the OFF position. Press the
reset button firmly.
Do not use metal objects to press the reset
button. Failure to follow this instruction may
result in electrocution.
Turn the power switch to the ON position. Press the
WASH key and observe the freezer’s performance.
Open the side access panel. Make sure the beater
motor is turning the drive shaft in a clockwise direction
(from the operator end) without binding.
Figure 1
IMPORTANT: Once the draw rate is set, tighten the
lock nut with a wrench.
12
Important: To the Operator
Models 8751/8754
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Feed Tube (Back--up Option)
If the air/mix pump has become inoperable because of
a missing or damaged part, the operator can
temporarily operate the unit using the feed tube. The
product ejection rate will be slower when the feed tube
is used instead of the air/mix pump.
The feed tube serves two purposes. One end of the
tube has a hole and the other end does not.
1. Normal Operation
During normal operation, the end of the feed tube
with the hole is placed into the mix inlet hole.
Every time the draw handle is raised, new mix and
air from the hopper flow into the freezing cylinder.
This keeps the freezing cylinder properly loaded
and maintains overrun.
2. Long “No Sale” Periods
During long “No Sale” periods, the unit can be
placed into the Standby mode. This maintains
product temperatures below 40_F (4.4_C) in both
the hopper and the freezing cylinder, and helps
prevent overbeating and product breakdown.
To place the unit into the Standby mode, press the
STANDBY key. Remove the air orifice. Lubricate
the o--rings located on the end of the feed tube
without the hole. Place that end of the tube into
the mix inlet hole.This will prevent any mix from
entering the freezing cylinder.
Figure 2
ITEM
DESCRIPTION
ORIFICE
O--RING--3/8 OD X .070 W
PART NO.
1
2
3
4
022465--100
016137
Note: The air orifice is used to meter a certain
amount of air into the freezing cylinder. The air
orifice maintains overrun and allows enough mix
to enter the freezing cylinder after a draw.
TUBE A.--FEED--SS 5/32 HOLE X29429--2
O--RING--.643 OD X .077 W 018572
050201
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Section 6
Operating Procedures
The Model 8751 has been selected to illustrate the
step-by-step operating procedures for both models
contained in this manual. These models, for all
practical purposes of operation, are the same.
Fill the inside portion of the seal with 1/4” more
lubricant and lubricate the flat side of the seal that fits
onto the rear shell bearing.
Each unit stores mix in a hopper. The mix is pumped
into the freezing cylinder. They have 3.4 quart (3.2
liter) capacity freezing cylinders and 20 quart (18.9
liter) mix hoppers.
Duplicate the following procedures, where they apply,
for the second freezing cylinder on the Model 8754.
We begin our instructions at the point where we enter
the store in the morning and find the parts
disassembled and laid out to air dry from the previous
night’s cleaning.
These opening procedures will show you how to
assemble these parts into the freezer, sanitize them,
and prime the freezer with fresh mix in preparation to
serve your first portion.
Figure 3
If you are disassembling the machine for the first time
or need information to get to this starting point in our
instructions, turn to page 26, “Disassembly”, and start
there.
Insert the drive shaft into the freezing cylinder, hex end
first, and into the rear shell bearing until the seal fits
securely over the rear shell bearing. Engage the hex
end firmly into the drive coupling. Be sure the drive
shaft fits into the drive coupling without binding.
Assembly
Note: When lubricating parts, use an approved food
grade lubricant (example: Taylor Lube).
MAKE SURE POWER SWITCH IS IN THE
“OFF” POSITION! Failure to follow this instruction
may result in severe personal injury from hazardous
moving parts.
Step 1
Install the drive shaft. Lubricate the groove and 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.
Figure 4
050201
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Step 2
Repeat steps 1 and 2 for the other side of the freezer
on the Model 8754.
Install the beater assembly. First check the scraper
blades for any nicks or signs of wear. If any nicks are
present, or if the blades are worn, replace both blades.
If the 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.
Step 3
Assemble the freezer door. Place the large rubber
gasket(s) into the groove(s) on the back side of the
freezer door.
Note: The hole on the scraper blade must fit securely
over the pin to prevent costly damage.
Slide the white plastic front bearing(s) over the baffle
rod(s) onto the bearing hub(s) making certain that the
flanged end of the bearing is resting against thefreezer
door. DO NOT LUBRICATE THE GASKET(S) OR
THE FRONT BEARING(S).
Figure 5
Holding the rear blade on the beater, slide it halfway
into the freezing cylinder. Install the front scraper blade
over the front holding pin.
Install the beater shoes.
Figure 7
Note: There are two gaskets and two front bearings
for the Model 8754 door, one for each freezingcylinder.
Figure 6
Slide the beater assembly the rest of the way into the
freezing cylinder.
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 8
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Slide the two o-rings into the grooves on the prime
plug(s). Apply an even coat of Taylor Lube to the
o-rings and shaft(s).
Figure 11
Step 5
Install the draw valve(s). Slide the two o-rings into
the grooves on the draw valve(s), and lubricate.
Figure 9
Note: There are two prime plugs for the Model 8754
door, one for each freezing cylinder.
Insert the prime plug(s) into the hole(s) in the top of the
freezer door, and push down.
Figure 12
Note: The Model 8754 has three draw valves.
Lubricate the inside of the freezer door spout(s), top
and bottom, and insert the draw valve(s) from the
bottom until the slot in the draw valve(s) comes into
view.
Figure 10
Step 4
Install the freezer door. Insert the baffle rod(s)
through the opening in the beater(s) and seat the door
flush with the freezing cylinder. With the door seated
on the freezer studs, install the handscrews. Tighten
equally in a crisscross pattern to insure the door is
snug.
Note: On the Model 8754, the short handscrews go
on the bottom and the long handscrews go on the top.
Figure 13
16
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Step 6
Step 7
Install the adjustable draw handle(s). Slide the o-ring
into the groove on the pivot pin, and lubricate.
Snap the design cap(s) over the end of the door
spout(s).
Figure 16
Step 8
Install the front drip tray and the splash shield under
the door spout(s).
Figure 14
Slide the fork over the bar in the slot of the draw valve.
Secure with pivot pin.
Note: The Model 8754 has three draw handles. Slide
the fork of the draw handle in the slot of the draw valve,
starting from the right. Slide the pivot pin through each
draw handle as you insert them into the draw valves.
Figure 17
Step 9
Slide the rear drip pan into the hole in the side panel.
Slide the pump drip pan into the hole in the back panel
(Model 8751 only).
Figure 15
Note: These units feature adjustable draw handles to
provide the best portion control. The draw handles can
be adjusted for different flow rates. See page 12 for
more information on adjusting these handles.
Figure 18
17
Models 8751/8754
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Note: Check bands have two smooth surfaces. A
concave shape indicates an incorrect assembly. Turn
the check band inside out to correctly expose the flat
surface.
Air/Mix Pump Assembly
The purpose of the air/mix pump is to meter a specific
amount of air and mix, and to transfer this combination
to the freezing cylinder.
Refer to the illustration on page 8 for identification of
parts during assembly.
Step 1
Assemble the piston. Slide the o-ring into the groove
on the piston. DO NOT lubricate this o-ring.
Figure 21
Step 3
Put a small amount of lubricant on the inside diameter
of the piston. Insert the narrow end of the liquid valve
body into the open end of the piston.
Figure 19
Step 2
Assemble the liquid valve body. Slide the three check
bands and three o-rings into the grooves on the liquid
valve body. DO NOT lubricate the check bands or
o-rings.
Figure 20
Figure 22
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Step 4
Step 5
Apply a small amount of lubricant to the LOWER inside
diameter of the pump cylinder to a depth equivalent to
the length of your index finger. Once applied, the
amount of lubricant should be equal to a paper-thin
film.
Assemble the mix inlet tube assembly. Slide the o-ring
and the seal into the grooves on the fittings, and
thoroughly lubricate these parts.
Figure 25
Step 6
Figure 23
Put the rubber poppet into the small end of the spring.
Attach the spring and poppet to the end of the pressure
relief fitting. The spring and poppet must be securely
fastened and must not be allowed to float freely.
Insert the assembled piston and liquid valve body into
the pump cylinder and push upwards. Align the steel
button at the base of the valve body with the cut-out
groove at the bottom of the pump cylinder.
Figure 26
Figure 24
Note: The rubber poppet and spring act as a pressure
relief valve to prevent a pressure build up in the
freezing cylinder.
Note: The hole in the piston must be visible through
the drive hole in the pump cylinder.
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Insert the assembled mix inlet tube into the hole in the
base of the liquid valve body.
Step 7
Install one o-ring on each end of the mix feed tube.
Thoroughly lubricate.
Figure 27
Figure 29
Secure the pump parts in position by sliding the
retaining pin through the cross holes located at the
bottom of the pump cylinder.
Step 8
Slide the large o-ring and two small o-rings into the
grooves on the drive shaft. Thoroughly lubricate the
o-rings, and the shaft. DO NOT lubricate the hex end
of the shaft.
Figure 28
Note: When the pump is correctly installed, the head
of the retaining pin should be facing up.
Figure 30
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Install the hex end of the drive shaft into the drive hub
at the rear wall of the mix hopper.
Sanitizing
Step 1
Prepare two gallons (7.6 liters) of an approved 100
PPM sanitizing solution (example: Kay-5r). USE
WARM WATER AND FOLLOW THE MANUFACTUR-
ER’S SPECIFICATIONS.
Step 2
Pour the two gallons (7.6 liters) of sanitizing solution
over all the parts in the bottom of the mix hopper and
allow it to flow into the freezing cylinder.
Figure 31
Note: For ease in installing the pump, position the ball
crank of the drive shaft in the 3 o’clock position.
Step 9
Lay the pump assembly, pump clip, mix feed tube,
locking clip, and gasket in the bottom of the mix hopper
for sanitizing.
Figure 33
Note: You have just sanitized the mix hopper and
parts; therefore, be sure your hands are clean and
sanitized before going on in these instructions.
Step 3
While the solution is flowing into the freezing cylinder,
take particular care to brush-clean the mix level
sensing probe on the front wall and the bottom of the
hopper, the mix hopper, the mix hopper gasket, the mix
inlet hole, the air/mix pump, the pump clip, the mix feed
tube, and the locking clip.
Figure 32
Repeat Steps 1 through 9 for the other side of the
freezer on the Model 8754.
21
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Step 4
Step 6
Install the pump assembly. To position the pump on the
drive hub at the rear of the mix hopper, align the drive
hole in the piston with the drive crank of the drive shaft.
Secure the pump in place by slipping the pump clip
over the collar of the pump, making sure the clip fits
into the grooves in the collar.
Place the power switch in the ON position.
Step 7
Press the WASH key. This will cause the sanitizing
solution in the freezing cylinder to agitate. Allow it to
agitate for five minutes.
Figure 34
Figure 36
Step 5
Push one end of the vinyl sanitizing tube onto the air
inlet tube for the pump. Be sure the free end is
submerged in the sanitizing solution in the hopper.
Step 8
With an empty pail beneath the door spout(s), raise the
prime plug and press the PUMP key.
Figure 35
Repeat steps 1 through 5 for the other side of the
freezer on the Model 8754.
Figure 37
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Step 9
Step 12
When a steady stream of sanitizing solution is flowing
from the prime plug opening in the bottom of the
freezer door, pull the draw handle down. Draw off all of
the sanitizing solution. (Note: On the Model 8754,
momentarily pull the center draw handle down to
sanitize the center door spout.)
Lubricate the mix feed tube o--rings located on the end
of the tube with the small hole on the side. Stand the
mix feed tube in the corner of the mix hopper. Place the
locking clip in position in the outlet fitting of the pump.
Figure 40
Figure 38
Step 10
Repeat Steps 6 through 12 for the other side of the
freezer on the Model 8754.
Once the sanitizer stops flowing from the door
spout(s), raise the draw handle(s). Press the WASH
and PUMP keys, cancelling the beater motor and
pump operation.
Step 13
Assemble the hopper gasket around the top edge of
the mix hopper.
Priming
Step 1
Place an empty pail beneath the door spout and lower
the draw handle. Be sure the prime plug is still in the
UP position. Pour two gallons (7.6 liters) of fresh mix
into the hopper and allow it to flow into the freezing
cylinder. This will force out any remaining sanitizing
solution. When full strength mix is flowing from the
door spout, raise the draw handle.
Figure 39
Note: Be sure your hands are clean and sanitized
before continuing these instructions.
Step 11
Remove the vinyl sanitizing tube from the air inlet tube
on the air/mix pump.
Note: Use only fresh mix when priming the
freezer.
050201
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Step 2
Step 4
Once a steady stream of mix starts to flow from the
prime plug opening in the bottom of the freezer door,
push down the prime plug.
Press the AUTO key. When the unit cycles off, the
product will be at serving viscosity.
Figure 43
Step 5
Figure 41
Fill the hopper with fresh mix. As the mix level comes
in contact with the mix level sensing probe on the front
wall of the hopper, the MIX LOW light will shut off.
Step 3
When the mix stops bubbling down into the freezing
cylinder, insert the mix feed tube. Remove the locking
clip from the outlet fitting of the mix pump. Insert the
outlet end of the mix feed tube into the mix inlet hole
in the mix hopper. Place the inlet end of the mix feed
tube into the outlet fitting of the mix pump. Secure with
locking clip.
Note: The MIX REF light will come on, indicating the
mix refrigeration system is maintaining mix in the mix
hopper.
Step 6
Place the mix hopper cover in position.
Repeat steps 1 through 6 for the other side of the
freezer on the Model 8754.
Closing Procedure
To disassemble your unit, the following items will be
needed:
S
S
S
S
S
Two cleaning pails
Sanitized stainless steel rerun can with lid
Necessary brushes (provided with freezer)
Cleaner
Single service towels
Figure 42
24
Operating Procedures
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Draining Product From the
Freezing Cylinder
Rinsing
Step 1
Pour two gallons (7.6 liters) of cool clean water intothe
mix hopper. With the brushes provided, scrub the mix
hopper, the mix inlet hole and the mix level sensing
probe.
Step 1
Step 2
Press the AUTO key, cancelling compressor and
beater motor operation.
With a pail beneath the door spout, raise the primeplug
and press the WASH key.
Step 3
Press the MIX REF key, cancelling the mix hopper
refrigeration system.
When a steady stream of rinse water is flowing from
the prime plug opening in the bottom of the freezer
door, lower the draw handle. Drain all the rinse water
from the freezing cylinder. When the water stops
flowing from the door spout, raise the draw handle and
press the WASH key cancelling the WASH mode.
Step 2
Remove the hopper cover and gasket. Take these
parts to the sink for cleaning.
Repeat this procedure until the rinse water being
drawn from the freezing cylinder is clear.
Step 3
Repeat steps 1 through 3 for the other side of the
freezer on the Model 8754.
With a sanitized pail beneath the door spout, press the
WASH and PUMP keys. Lower the draw handle and
drain the remaining product from the freezing cylinder
and mix hopper.
Cleaning
Step 1
Prepare two gallons (7.6 liters) of an approved 100
PPM cleaning solution (example: Kay-5r). USE
WARM WATER AND FOLLOW THE MANUFACTUR-
ER’S SPECIFICATIONS.
Step 4
When the flow of product stops, press the WASH and
PUMP keys and close the draw valve.
Step 2
Step 5
Push down the prime plug. Pour the two gallons (7.6
liters) of cleaning solution into the mix hopper.
If local health codes permit, empty the rerun into a
sanitized stainless steel can. Cover the container and
place it in the walk-in cooler.
Step 3
While the solution is flowing into the freezing cylinder,
brush clean the mix hopper, mix level sensing probes
and the mix inlet hole.
Step 6
Step 4
Remove the assembled air/mix pump and take to the
sink for further disassembly and cleaning.
Press the WASH key. This will cause the cleaning
solution in the freezing cylinder to be agitated.
Step 5
Repeat steps 1 through 6 for the other side of the
Place an empty pail beneath the door spout and raise
the prime plug.
freezer on the Model 8754.
Step 6
When a steady stream of cleaning solution is flowing
from the prime plug opening in the bottom of the
freezer door, lower the draw handle. Draw off all of the
solution.
ALWAYS FOLLOW LOCAL HEALTH CODES.
25
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Step 7
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 rings without falling into the open
grooves.
Once the cleaning solution stops flowing from the door
spout, raise the draw handle and press the WASH key,
cancelling the WASH mode.
Repeat steps 1 through 7 for the other side of the
freezer on the Model 8754.
Step 4
Remove the retaining pin(s), liquid valve body(ies),
piston(s), mix inlet tube(s), spring(s) and poppet(s).
Remove all o-rings, seal(s), and check bands.
Disassembly
Step 1
Be sure the power switch is in the OFF position.
Make sure no lights are lit on the control panel.
Step 5
Return to the freezer with a small amount of cleaning
solution. With the black bristle brush, brush clean the
rear shell bearing(s) at the back of the freezing
cylinder(s). Brush clean the drive hub opening(s) in the
rear wall of the mix hopper(s).
Step 2
Remove the handscrews, freezer door(s), beater(s),
beater shoes, scraper blades, and drive shaft(s) from
the freezing cylinder(s). Take these parts to the sink for
cleaning.
Step 3
Remove the drive shaft(s) from the drive hub(s) in the
rear wall of the mix hopper(s).
Step 4
Remove the front drip tray and the splash shield.
Brush Cleaning
Step 1
Prepare a sink with an approved cleaning solution (ex-
ample: Kay-5r). USE WARM WATER AND FOLLOW
THE MANUFACTURER’S SPECIFICATIONS. If
another approved cleaner is used, dilute according to
label instructions.
Figure 44
Step 6
Remove the rear drip pan(s) from the side panel and
take it to the sink for cleaning.
IMPORTANT:
Follow label directions, as 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.
Note: If the drip pan is filled with an excessive amount
of mix, refer to the Troubleshooting Guide.
Step 2
Step 7
Remove the seal(s) from the drive shaft(s).
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(s) in the freezer door. Place all
cleaned parts on a clean, dry surface to air dry
overnight.
Step 3
From the freezer door(s) remove the gasket(s), front
bearing(s), pivot pin, adjustable draw handle(s), draw
valve(s), prime plug(s), and design cap(s). Remove all
o-rings.
Note: To remove the o-rings, use a single service
towel to grasp the o-ring. Apply pressure in an upward
Step 8
Wipe clean all exterior surfaces of the freezer.
26
Operating Procedures
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Section 7
Important: Operator Checklist
j 7. Properly prepare the cleaning and sanitizing
During Cleaning and Sanitizing
solutions. Read and follow label directions
carefully. Too strong of a solution may damage
the parts and too weak of a solution will not do
an adequate job of cleaning or sanitizing.
Cleaning and sanitizing schedules are governed by
your State or local regulatory agencies and must be
followed accordingly. The following check points
should be stressed during the cleaning and sanitizing
operations.
j 8. The temperature of the mix in the mix hopper
and walk-in cooler should be below 40_F.
(4.4_C.).
WE RECOMMEND DAILY CLEANING AND
SANITIZING.
Regular Maintenance Checks
ALWAYS FOLLOW LOCAL HEALTH CODES.
j 1. Replace scraper blades that are nicked or
damaged. Before installing the beater
assembly, be certain that scraper blades are
properly attached to the helix.
Troubleshooting Bacterial Count
j 2. Check the rear shell bearing for signs of wear
(excessive mix leakage in rear drip pan) and be
certain it is properly cleaned.
j 1. Thoroughly clean and sanitize machine
regularly, including complete disassembly and
brush cleaning.
j 3. Using a screwdriver and cloth towel, keep the
rear shell bearing and the female hex drive
socket clean and free of lubricant and mix
deposits.
j 2. Use all brushes supplied for thorough cleaning.
The brushes are specially designed to reach all
mix passageways.
j 4. Dispose of o-rings and seals if they are worn,
torn, or fit too loosely, and replace with new
ones.
j 3. Use the white bristle brush to clean the mix inlet
hole which extends from the mix hopper down
to the rear of the freezing cylinder.
j 5. Follow all lubricating procedures as outlined in
“Assembly”.
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 6. If your machine is air cooled, check the
condensers for accumulation of dirt and lint.
Dirty condensers will reduce the efficiency and
capacity of the machine. Condensers should be
cleaned monthly with a soft brush. Never use
screwdrivers or other metal probes to clean
between the fins.
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. Mix the
rerun with fresh mix in a ratio of 50/50 during the
days operation.
Note: For machines equipped with an air filter,
it will be necessary to vacuum clean the filters
on a monthly schedule.
j 6. On a designated day of the week, run the mix as
low as feasible and discard it after closing. This
will break the rerun cycle and reduce the
possibility of high bacteria and coliform counts.
Caution: Always disconnect
electrical power prior to cleaning the
condenser. Failure to follow this instruction
may result in electrocution.
051215
27
Models 8751/8754
Important: Operator Checklist
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j 7. If your machine is equipped with an auxiliary
refrigeration system, check the auxiliary
condenser for accumulation of dirt and lint. Dirty
condensers will reduce the refrigeration
capacity of the mix hopper. Condensers must
be cleaned monthly with a soft brush. Never
use screwdrivers or other metal probes to clean
between the fins.
Winter Storage
If the place of business is to be closed during the winter
months, it is important to protect the freezer by
following certain precautions, particularly if the
building is subject to freezing conditions.
Caution:
Always
disconnect
Disconnect the freezer from the main power source to
prevent possible electrical damage.
electrical power prior to cleaning the
condenser. Failure to follow this instruction
may result in electrocution.
j 8. If your machine is water cooled, check the water
lines for kinks or leaks. Kinks can occur when
the machine is moved back and forth for
On water cooled freezers, disconnect the water
supply. Relieve pressure on the spring in the water
valve. Use air pressure on the outlet side to blow out
any water remaining in the condenser, and then add a
liberal amount of permanent type auto anti-freeze.
This is extremely important. Failure to follow this
procedure may cause severe and costly damage tothe
refrigeration system.
cleaning
or
maintenance
purposes.
Deteriorated or cracked water lines should be
replaced only by an authorized Taylor
distributor.
The Air/Mix Pump Checklist
j 1. Dispose of o-rings and check bands if they are
worn, torn or fit too loosely. Replace them with
new ones.
Your local Taylor Distributor can perform this winter
storage service for you.
j 2. Follow lubricating procedures carefully. Do not
Wrap detachable parts of the freezer such as beater,
blades, drive shaft, 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 which attract mice
and other vermin.
lubricate check bands.
j 3. Handle plastic pump parts with care to avoid
nicks and cracks.
j 4. Be sure the air/mix pump is properly attached to
the drive hub, or severe and costly damage may
occur.
28
Important: Operator Checklist
Models 8751/8754
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Section 8
Troubleshooting Guide
PROBLEM
PROBABLE CAUSE
REMEDY
PAGE
REF.
-- -- --
1. No product is being
dispensed with draw valve
open and the machine in
the AUTO mode.
a. Freeze-up in mix inlet
hole.
a. Call service technician to
adjust the mix hopper
temperature.
12
b. Beater motor out on reset.
b. Reset the freezer.
-- -- --
c. The beater is rotating
counterclockwise from the
operator end.
c. Contact service technician
to correct rotation to
clockwise from operator
end.
-- -- --
24
d. The circuit breaker is off
or the fuse is blown.
d. Turn the breaker on, or
replace the fuse.
e. There is inadequate mix in e. Fill the mix hopper with
mix.
the mix hopper.
-- -- --
-- -- --
1
2. The product is too stiff.
3. The product is too soft.
a. The viscosity needs
adjustment.
a. Contact service
technician.
a. Viscosity needs
adjustment.
a. Contact service
technician.
b. Not enough air space
around unit. (Air cooled
units)
b. Allow for adequate air flow
across the condenser.
33
27
c. Worn scraper blades.
d. Dirty condenser (A/C)
e. Mix is out of date.
c. Replace regularly.
d. Clean monthly.
-- -- --
28
e. Use only fresh mix.
f. Loss of water. (W/C)
f. Locate cause of water
loss and correct.
-- -- --
4. The mix in the mix hopper
is too cold.
a. The temperature is out of
adjustment.
a. Call service technician to
adjust the mix hopper
temperature.
29
Models 8751/8754
Troubleshooting Guide
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PROBLEM
PROBABLE CAUSE
REMEDY
PAGE
REF.
-- -- --
5. The mix in the mix hopper
is too warm.
a. The temperature is out of
adjustment.
a. Call service technician to
adjust the mix hopper
temperature.
23
24
b. Missing or defective mix
hopper gasket.
b. Replace/install the gasket
around the mix hopper.
c. The mix hopper cover is
not in position.
c. Place the cover in
position.
11
d. The MIX REF light is not
lit.
d. Press the MIX REF key.
-- -- --
6. The drive shaft is stuck in
the drive coupling.
a. Rounded corners of drive
shaft, coupling, or both.
a. Call service technician to
correct cause, and to
replace the necessary
components. Do not
lubricate the hex end of
the drive shaft.
26
b. Mix and lubricant collected b. Brush clean the rear shell
bearing area regularly.
in the drive coupling.
-- -- --
7. The freezing cylinder walls a. The beater assembly is
a. Call service technician to
repair or replace the
are scored.
bent.
beater and to correct the
cause of insufficient mix
in the freezing cylinder.
15
b. The front bearing is
missing or worn on the
freezer door.
b. Install or replace the front
bearing.
14 / 33
-- -- --
8. Excessive mix leakage
into the rear drip pan.
a. Missing or worn drive
shaft seal on drive shaft.
a. Install or replace regularly.
b. The rear shell bearing is
worn.
b. Call service technician to
replace rear shell bearing.
16 / 33
16
9. Excessive mix leakage
from door spout.
a. Missing or worn draw
valve o-rings.
a. Install or replace regularly.
b. Inadequate lubrication of
draw valve o-rings.
b. Lubricate properly.
14
c. Wrong type of lubricant is
being used (example:
c. Use the proper lubricant
(example: Taylor Lube).
petroleum base lubricant).
-- -- --
-- -- --
12
10. No freezer operation after
pressing the AUTO key.
a. Unit is unplugged.
a. Plug into wall receptacle.
b. The circuit breaker is off
or the fuse is blown.
b. Turn the breaker on, or
replace the fuse.
c. The beater motor is out on c. Reset the freezer.
reset.
30
Troubleshooting Guide
Models 8751/8754
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PROBLEM
PROBABLE CAUSE
REMEDY
PAGE
REF.
24
11. Product is not feeding into
the freezing cylinder.
a. Inadequate level of mix in
the mix hopper.
a. Fill the mix hopper with
mix.
-- -- --
b. The mix inlet hole is
frozen up.
b. The mix hopper
temperature needs
adjustment. Call service
technician.
-- -- --
12. The air/mix pump will not
operate when the PUMP
key is pressed.
a. The circuit breaker is off.
a. Check the breaker.
-- -- --
12
b. The power cord is
unplugged.
b. Plug in the power cord.
c. Reset the freezer.
c. The freezer is out on
reset.
-- -- --
d. The pump motor is out on
reset.
d. Press the PUMP key to
cancel pump operation.
Press the reset button on
the side of the pump
motor reducer. Press the
PUMP key to continue
pump operation.
-- -- --
-- -- --
13. The air/mix pump will not
operate when the draw
a. The pump motor is out on
reset.
a. Press the AUTO key to
cancel the pump
operation. Press the reset
button on the side of the
pump motor reducer.
Press the AUTO key to
continue automatic
operation.
valve is opened and the
unit is in the AUTO mode.
b. The relay is
malfunctioning.
b. Contact service
technician.
31
Models 8751/8754
Troubleshooting Guide
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PROBLEM
PROBABLE CAUSE
REMEDY
PAGE
REF.
-- -- --
14. The piston travels back
and forth, but product is
not being pumped.
a. Inspect the check bands.
a. Check bands must be
installed correctly, fit
tightly, and not have any
holes or lubrication. Make
sure check bands are not
inside-out.
27
18
b. Inspect the o-rings.
b. O-rings must not be worn,
torn, or fit too loosely.
c. Check the pump cylinder.
c. The piston and liquid valve
body must be assembled
correctly and fit snugly in
the pump cylinder.
19
19
d. Missing or defective
spring or poppet.
d. Replace.
15. Excessive pump cylinder
wear.
a. Inadequate or incorrect
lubrication of pump
cylinder.
a. Follow lubrication
procedures carefully.
-- -- --
26
b. Incorrect ball crank
rotation.
b. Contact service
technician.
16. Pitting occurring inside the a. Cleaner was left inside the a. After brush cleaning the
pump cylinder, allow it to
air dry. Follow
pump cylinder.
pump cylinder.
disassembly procedures
carefully.
-- -- --
-- -- --
17. The ball crank of the
motor reducer is broken.
a. Incorrect rotation of pump
motor.
a. Contact service
technician.
18. Too much pressure in the
freezing cylinder.
a. Plugged relief hole in
liquid valve body below
poppet.
a. Clean.
-- -- --
-- -- --
19
19. Not enough pressure in
the freezing cylinder.
a. Weak or bent spring in
liquid valve body.
a. Replace.
b. Malfunctioning draw
switch.
b. Contact service
technician.
c. Missing poppet.
c. Install the poppet.
32
Troubleshooting Guide
Models 8751/8754
Download from Www.Somanuals.com. All Manuals Search And Download.
Section 9
Parts Replacement Schedule
PART DESCRIPTION
EVERY
3 MONTHS
EVERY
6 MONTHS
ANNUALLY
Drive Shaft Seal
Scraper Blade
X
X
X
X
X
X
X
X
X
X
Freezer Door Gasket
Front Bearing
Beater Shoes
Draw Valve O-Ring
Pivot Pin O-Ring
Prime Plug O-Ring
Air Tube O-Ring
Air Orifice O-Ring
White Bristle Brush, 3” x 7”
Inspect & Replace
if Necessary
Minimum
Minimum
Minimum
Minimum
White Bristle Brush, 1” x 2”
Black Bristle Brush, 1” x 2”
Double-Ended Brush
Inspect & Replace
if Necessary
Inspect & Replace
if Necessary
Inspect & Replace
if Necessary
Refer to Parts List on the next page when ordering the above parts.
33
Models 8751/8754
Parts Replacement Schedule
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Section 10
Parts List
+ Available Separately
34
Parts List
Models 8751/8754
Download from Www.Somanuals.com. All Manuals Search And Download.
+ Available Separately
Models 8751/8754
Parts List
35
Download from Www.Somanuals.com. All Manuals Search And Download.
+ Available Separately
36
Parts List
Models 8751/8754
Download from Www.Somanuals.com. All Manuals Search And Download.
+ Available Separately
Models 8751/8754
Parts List
37
Download from Www.Somanuals.com. All Manuals Search And Download.
+ Available Separately
38
Parts List
Models 8751/8754
Download from Www.Somanuals.com. All Manuals Search And Download.
+ Available Separately
Models 8751/8754
Parts List
39
Download from Www.Somanuals.com. All Manuals Search And Download.
+ Available Separately
40
Parts List
Models 8751/8754
Download from Www.Somanuals.com. All Manuals Search And Download.
+ Available Separately
Models 8751/8754
Parts List
41
Download from Www.Somanuals.com. All Manuals Search And Download.
+ Available Separately
42
Parts List
Models 8751/8754
Download from Www.Somanuals.com. All Manuals Search And Download.
+ Available Separately
Models 8751/8754
Parts List
43
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Model 8751
052613-27
Rev. 11/02
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Model 8751
052613-33
Rev. 11/02
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Model 8751
052613-40
Rev. 11/02
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Model 8751
052613-58
Rev. 11/02
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Model 8754
046585--27
Rev. 11/02
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Model 8754
046585--33
Rev. 11/02
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