Models 750/751/754/774/794 Soft Serve Freezers Operating Instructions 028754--M 2/01/02
Complete this page for quick reference when service is required: Taylor Distributor: Address: Phone: Service: Parts: Date of Installation: Information found on the data label: Model Number: Serial Number: Electrical Specs: Voltage Cycle Phase Maximum Fuse Size: A Minimum Wire Ampacity: A E February, 2002 Taylor All rights reserved. 028754--M The word Taylor and the Crown design are registered trademarks in the United States of America and certain other countries. Taylor Company 750 N.
Table of Contents Section 1 To the Installer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Water Connections (Water Cooled Units Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Cooled Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents -- Page 2 Section 6 Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Prior to Set-Up (Model 774) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 1 To the Installer Electrical Connections This machine is designed for indoor use only. 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.
Section 2 To the Operator Compressor Warranty Disclaimer 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 following: 750, 751, 754, 774, and 794. 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.
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 service technician. As an example, warning labels have been attached to the freezer to further point out safety precautions to the operator. DO NOT allow untrained personnel to operate this machine.
Section 4 Operator Parts Identification Model 750 Item Description Part No. 1 Cover A.-Hopper X38458 2 Gasket-Hopper Cover 3 Tube A.-Feed 4 Item Description Part No. 10 Panel-Side Left 050741 038375 11 Leg-4” SS w/O-Ring 013458 X29429-2 12 Louver-Side-Left 013631 Panel-Rear 020891 13 Stud-Nose Cone 022822 5 Panel-Upper Side Right 042317 14 Panel A.-Front X50754 6 Pan-Drip 050766 15 O-Ring-.643 OD x .077 W 018572 7 Panel-Right Side 050742 16 O-Ring-3/8 OD x .
Model 751 Item Description Part No. Item Description Part No. 1 Cover A.-Hopper X38458 11 Panel-Service 047170 2 Gasket-Hopper Cover 038375 12 Caster-Swivel 018794 3 Tube A.-Feed X29429-2 13 Stud-Nose Cone 022822 4 Panel-Rear 013637 14 Panel A.-Side-Lower-Louvered X39075 5 Panel-Upper Side Right 028823 15 O-Ring-.643 OD x .077 W 018572 6 Pan-Drip 11-5/8 Long 027503 16 O-Ring-3/8 OD x .070 W 016137 7 Panel A.
Model 754 Item Description Part No. Item Description Part No. 1 Cover A.-Hopper X38458 11 Panel-Upper Side Left 028822 2 Gasket-Hopper Cover 038474 12 Stud-Nose Cone 022822 3 Tube A.-Feed X29429-2 13 Panel A.-Side Lower Left X46447 4 Panel-Rear 053782 14 Louver-Side (Left & Right) 017471 5 Panel-Upper Side Right 028823 15 O-Ring-.643 OD x .077 W 018572 6 Panel A.-Side Lower Right X46448 16 O-Ring-3/8 OD x .
Model 774 Item Description Part No. Item Description Part No. 1 Cover A.-Hopper X38458 14 Pump A.-Syrup-Tan 053794--TAN 2 Gasket-Hopper Cover 038474 15 O-Ring-.643 OD x .077 W 018572 3 Tube A.-Feed X29429-2 16 Panel A.-Side Lower-Left X46447 4 Panel-Upper Rear X42574 17 Jar-Syrup-Plastic 036573 5 Panel-Upper Side Right 028823 18 Jar-Syrup-Stainless-Shallow 036574 6 Panel A.
Model 774 Topping Pump (053794--) ITEM DESCRIPTION PART NO. 1 Knob-Plunger-Tan 032762-TAN 1 Knob-Plunger-Brown 032762-BRN 1 Knob-Plunger-Red 032762-RED 2 O-Ring-9/16 OD x .103 W 016369 3 Nut-Plunger 036577 4 Collar-Gaging 1/2 Ounce 035514 5 Tube-Plunger 032757 6 Insert-Plunger 032758 7 Spring-Plunger 032761 8 Washer-Nylon 032760 9 Plunger 036578 Seal Assembly X33057 10 10a O-Ring-13/16 OD x .
Model 794 Item Description Part No. Item Description Part No. 1 Cover-Hopper 14 Qt. Grey 041682-GRY 10 Caster 018794 2 Pan-Drip 19-1/2 Long 035034 11 Panel A.-Side Lower Left X46447 3 Tube A.-Feed X29429-2 12 Louver-Side (Left & Right) 017471 4 Panel-Rear 041855 13 Stud-Nose Cone 022822 5 Panel-Upper Side (Left & Right) 024426 14 O-Ring-3/8 OD x .070 W 016137 6 Panel A.-Side Lower Right X46448 15 O-Ring-.643 OD x .
Models 750 & 751 Single Spout Door and Beater Assembly ITEM DESCRIPTION PART NO. ITEM DESCRIPTION PART NO. 1 HANDLE A.- DRAW X55096 7 O-RING 5/16OD X .070W 016272 1a DRAW HANDLE 028804 8 PLUG-PRIME 028805 1b SCREW-ADJUST 055092 9 O-RING-PRIME PLUG 016137 1c O-RING 1/4OD X .070W 015872 10 PIN A.- PIVOT X22820 1d NUT-JAM 029639-BLK 11 GASKET-DOOR HT 4” 048926 2 NUT-STUD FLAT LONG 021508 12 BLADE- SCRAPER 035174 3 DOOR A.- 1-SPOUT X51531-10 13 BEATER A.
Models 754, 774 & 794 Three Spout Door and Beater Assembly Item Description Part No. Item Description Part No. 1 Handle A.-Draw X55096 7 Seal-Drive Shaft 032560 1a Draw Handle 028804 8 Cap-Design 014218 1b Screw-Adjustment 055092 9 Decal-Door 021521 1c O-Ring 1/4 OD x .070 W 015872 10 Door A.-3 Spout X51532-12 1d Nut--Jam 029639--BLK 11 Rod A.-Pivot X20683 2 Nut-Stud Long 034382 12 O-Ring 5/16 OD x .
Section 5 Important: To the Operator 750/751 754/774/794 ITEM 1 2 3 4 5 6 7 Symbol Definitions DESCRIPTION MIX LOW INDICATOR LIGHT MIX REFRIGERATION KEY STANDBY KEY WASH KEY AUTO KEY POWER ON/OFF (TOGGLE) RESET BUTTON Important: To the Operator To better communicate in the International arena, the words on many of our operator switches and keys have been replaced with symbols to indicate their functions. Your Taylor equipment is designed with these International symbols.
STANDBY Key The following chart identifies the symbol definitions. The Separate Hopper Refrigeration System (SHR) and the Cylinder Temperature Retention System (CTR) are standard features on these machines. 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.
Reset Button draw handle is raised, new mix and air from the hopper will flow down into the freezing cylinder. This will keep the freezing cylinder properly loaded and will maintain overrun. On counter models, the reset button is located on the side of the unit. On console models, the reset button is located in the service panel. The reset protects the beater motor from an overload condition. If an overload occurs, the reset mechanism will trip.
Section 6 Operating Procedures The Model 751 has been selected to illustrate the step-by-step operating procedures for all models contained in this manual. These models, for all practical purposes of operation, are the same. Step 3 Prepare a pail of an approved 100 PPM sanitizing solution (example: Kay-5r). USE WARM WATER AND FOLLOW THE MANUFACTURER’S SPECIFICATIONS. Sanitize the topping pumps by placing the entire pump assembly in the pail of sanitizing solution.
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. Figure 6 Slide the beater the remainder of the way into the freezing cylinder and over the end of the drive shaft. The beater should fit snugly, but not so tightly that the beater cannot be turned slightly to engage the drive shaft.
Note: There are two gaskets and two front bearings for the Models 754, 774, and 794 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 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.
Step 5 Install the draw valve(s). Slide the two o-rings into the grooves on the draw valve(s), and lubricate. Step 6 Install the adjustable draw handle(s). Slide the o-ring into the groove on the pivot pin, and lubricate. Figure 14 Slide the fork over the bar in the slot of the draw valve. Secure with pivot pin. Figure 12 Note: Models 754, 774 and 794 have three draw handles. Slide the fork of the draw handle in the slot of the draw valve, starting from the right.
Model 794: Slide the rear drip pan into the hole in the front panel. Step 7 Snap the design cap(s) over the end of the door spout(s). Step 10 Slide two o-rings on one end of the air tube. Slide two o-rings on the other end of the air tube. Figure 16 Step 8 Install the front drip tray and the splash shield under the door spout(s). Figure 19 Slide the small o-ring into the groove of the air orifice. Do not lubricate the o-ring. Figure 17 Step 9 Slide the rear drip pan(s) into the hole in the side panel.
Install the air orifice into the hole in the top of the air tube (in the end without the small hole on the side). Figure 22 Step 3 While the solution is flowing into the freezing cylinder, brush clean the mix hopper. When cleaning the hopper, take particular care in brushing the mix level sensing probe on the rear wall of the hopper, the mix inlet hole, the air tube, and the hopper gasket.
Step 6 Place an empty pail beneath the door spout and raise the prime plug. Figure 25 Step 4 Place the power switch in the ON position. Figure 28 Step 7 When a steady stream of sanitizing solution is flowing from the prime plug opening in the bottom of the freezer door, lower the draw handle. Draw off all the sanitizing solution. Figure 26 Step 5 Press the WASH key. This will cause the sanitizing solution in the freezing cylinder to agitate. Allow it to agitate for five minutes.
Step 2 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. Step 9 Assemble the hopper gasket around the top edge of the mix hopper. Stand the air tube in the corner of the hopper. Figure 32 Figure 30 Step 3 Lubricate the o-rings on the air tube on the end with the small hole on the side. Repeat steps 1 through 9 for the other side of the freezer on Models 754, 774 and 794.
Rinsing Step 7 Place the mix hopper cover in position over the mix hopper. 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 probe. Repeat steps 1 through 7 for the other side of the freezer on Models 754, 774, and 794. Step 2 With a pail beneath the door spout, raise the prime plug and press the WASH key.
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 rings without falling into the open grooves.
Section 7 Important: Operator Checklist During Cleaning and Sanitizing j 7. 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 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.
Winter Storage 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. Failure to follow this instruction may result in electrocution.
Section 8 PROBLEM 1. No product is being dispensed with draw valve open and the machine in the AUTO mode. 2. The product is too stiff. 3. The product is too soft. 4. The mix in the mix hopper is too cold. Models 750, 751, 754, 774, 794 Troubleshooting Guide PROBABLE CAUSE REMEDY PAGE REF. a. Freeze-up in mix inlet hole. a. Call service technician to adjust the mix hopper temperature. b. Beater motor out on reset. b. Reset the freezer. c.
PROBLEM PROBABLE CAUSE REMEDY 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. b. Missing or defective mix hopper gasket. b. Replace/install the gasket around the mix hopper. 22 c. The mix hopper cover is not in position. c. Place the cover in position. 23 d. The MIX REF light is not lit. d. Press the MIX REF key. 13 a. Rounded corners of drive shaft, coupling, or both. a.
PROBLEM PROBABLE CAUSE 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. c. The air tube is installed incorrectly. c. Install the air tube in the mix inlet hole, using the end with the small hole in the side. 22 d. The air orifice is not installed. d. Install the air orifice in the air tube.
Section 9 Parts Replacement Schedule PART DESCRIPTION EVERY 3 MONTHS EVERY 6 MONTHS ANNUALLY White Bristle Brush, 3” x 7” Inspect & Replace if Necessary Minimum White Bristle Brush, 1” x 2” Inspect & Replace if Necessary Minimum Black Bristle Brush, 1” x 2” Inspect & Replace if Necessary Minimum Double-Ended Brush Inspect & Replace if Necessary Minimum Drive Shaft Seal X Scraper Blade X Freezer Door Gasket X Front Bearing X Draw Valve O-Ring X Pivot Pin O-Ring X Prime Plug O-Ri
031324 028992 028991 012864 BEARING-REAR SHELL +GUIDE-DRIP SEAL +NUT-BRASS BEARING +WASHER-BEARING LOCK Models 750, 751, 754, 774, 794 025729 041575 039422 039423 BELT-AX34 BELT-AX31 BLOCK-TERMINAL-2 P BLOCK-TERMINAL-3 P 31 053729 053726 SCREEN-BLOWER WHEEL-BLOWER 051272 013071 013072 013073 FUSE-SLO BLO BRUSH-BLACK (1” X 2”) BRUSH-DOUBLE END BRUSH-WHITE (1” X 2”) X32326-SER 053480-27 MOTOR-BLOWER BOARD-POWER 053727 HOUSING-BLOWER X36641SER1 053730 CLIP-SCREEN BLOWER BOARD-LOGIC
+ Available Separately Parts List 32 Models 750, 751, 754, 774, 794 038145 RELAY-START 036047 RELAY-START 047701-27 036048 CAPACITOR-START COMPRESSOR-AUXILIARY 048132 CAPACITOR-RUN 047519- 031790 CAPACITOR-START COMPRESSOR - TECUMSEH 012906 CAPACITOR-RUN 052401-27 RELAY-START 048259- 031304 CAPACITOR-START COMPRESSOR - BRISTOL 029439 CAPACITOR-RUN 052397- COMPRESSOR- COPELAND 048765 RELAY-START 052397-33 031790 CAPACITOR-START COMPRESSOR- COPELAND 023606 048727- CAPACITOR-
+ Available Separately Models 750, 751, 754, 774, 794 33 Parts List 046585048199X51531-10 DIAGRAM-WIRING DIAGRAM-WIRING DOOR A.-FREEZER 050216 014218 021521 048926 +CAP-DESIGN DECAL-DOOR +GASKET-DOOR X51532-12 +BEARING-FRONT DOOR A.
+ Available Separately Parts List 34 Models 750, 751, 754, 774, 794 X28699 X45691 X26996 GUIDE A.-DRIP PAN GUIDE A.-DRIP PAN HANDLE A.-ADJUSTABLE DRAW 014402 016272 016137 032560 048260-WHT O-RING O-RING O-RING SEAL TOOL-O-RING REMOVAL 050216 014218 048926 018572 BEARING-FRONT CAP-DESIGN GASKET-DOOR O-RING X49463-4 018572 O-RING KIT A.-TUNE-UP 048926 GASKET-DOOR 014218 X49463-11 KIT A.
+ Available Separately Models 750, 751, 754, 774, 794 35 Parts List 013458 036575 013631 017471 047518 028754-M LEG (4” w/O-RING) LID-W/LADLE LOUVER-SIDE (LEFT) LOUVER-SIDE LUBRICANT-TAYLOR 4 OZ.
+ Available Separately Parts List 36 Models 750, 751, 754, 774, 794 023953-5 016369 049993 049992 O-RING THERMOSTAT-ADJUSTABLE THERMOSTAT-HI LIMIT X42539 PANEL A.-FRONT PLUG-DRAIN X32956 PANEL A.-FRONT 030994 X33237 PANEL A.-FRONT LABEL-TEMPERATURE ADJUSTMENT X50754 PANEL A.-FRONT 023953-4 X46448-SER PANEL A.-LOWER SIDE-RIGHT HEATER-STRIP X46447-SER 042317 PANEL-UPPER RIGHT SIDE PANEL A.
+ Available Separately Models 750, 751, 754, 774, 794 37 Parts List X30922 PROBE A.-MIX 048149 048148 035514 051065 032758 032762016369 036822 036577 036821 036578 X33057 019330 032761 O-RING-1” OD COLLAR-GAGING-1/202 CYLINDER-SYRUP PUMP INSERT-PLUNGER KNOB-PLUNGER (w/O-RING) +O-RING LID-PUMP NUT-PLUNGER NUT-SPOUT PLUNGER SEAL ASSEMBLY (w/O-RING) +O-RING SPRING-PLUNGER 053794-TAN PUMP A.
+ Available Separately Parts List 38 Models 750, 751, 754, 774, 794 041950047150- STARTER-BEATER LINE 024295 037394 051974 SWITCH-TOGGLE (POWER SWITCH) SWITCH-TOGGLE (POWER SWITCH) SWITCH-TOGGLE (HEATER SWITCH) X33326 X43722 049178 015478 041660 041661 028889 BRACKET A.-SWITCH E-RING PIN-PIVOT SPRING-LEFT RETURN SPRING-RIGHT RETURN SWITCH-MICRO X33322-SER SWITCH A.-DRAW ARM A.
+ Available Separately Models 750, 751, 754, 774, 794 39 Parts List 038484 038254 038922 038923 038924 X39269 PIN-PIVOT ROD-SPRING RETAINER SPRING-EXTENSION SPRING-LEFT RETURN SPRING-RIGHT RETURN SWITCH A.-DRAW 050900 +BOOT-EXPANSION VALVE 022665 046365 VALVE-AUTOMATIC EXPANSION VALVE-E.P.R. 029406 044404 VALVE-ACCESS 043232 X29429-2 TUBE A.
+ Available Separately Parts List 40 Models 750, 751, 754, 774, 794 015184- MOTOR-FAN 048231 046686 SWITCH-PRESSURE VALVE-WATER 028315 026659 051958- CAPACITOR-START (BEATER MOTOR) CAPACITOR-START (BEATER MOTOR) COMPRESSOR-COPELAND 027087 031790 048766 CAPACITOR-START (230-50-1) RELAY-START (230-50-1) 048727- CAPACITOR-RUN (230-50-1) COMPRESSOR (MAIN - HP62) -BRISTOL 051957-40 023739 CAPACITOR-RUN (BEATER MOTOR) RELAY-START COMPRESSOR 023606 CAPACITOR-RUN (BEATER MOTOR) 051960 0394
+ Available Separately Models 750, 751, 754, 774, 794 41 Parts List 038146 RELAY-START 036048 036047 CAPACITOR-START RELAY-START 1 047279 011545 BLADE-FAN (12” PUSH) PULLEY (BEATER MOTOR) 1 1 047178-34 MOTOR-FAN 029439 CAPACITOR-RUN 047519- 031790 CAPACITOR-START COMPRESSOR-MAIN (HP62)-TECUMSEH 023739 CAPACITOR-RUN 1 1 1 1 1 1 048259- 052401-27 COMPRESSOR (MAIN - HP62) BRISTOL RELAY-START COMPRESSOR 1 052399 1 052400 1 750 751 QTY. QTY.
Models 750 & 751 052613-27 Rev.
Models 750 & 751 052613-33 Rev.
Models 750 & 751 052613-40 Rev.
Models 750 & 751 052613-58 Rev.
Models 754 & 774 046585--27 Rev.
Models 754 & 774 046585--33 Rev.
Model 794 048199--27 Rev.
Model 794 048199--33 Rev.
Model 794 048199--62 Rev.
