47 Selection snack    

Vending machine
Service Manual 

Models: 

3160/3160A 

INTRODUCTION 

This manual contains service and installation instructions for the Snack Food Vending Machine product line. All 49 Selection Snack Food Vending Machines models are equipped with an electronic control system. All programming of vend functions, pricing and features are done at the controller. Changes can be made without any additional accessories or remote parts. Selections can be priced individually from $.05 to $999.95 in five cent increments (U.S. currency).

Features Include:

-         Multi Drop Bus (MDB) coin handling

-         Self-diagnostics and cash accountability

-         Multi Vend, Free Vend, Bonus Vend and Promo Vend features

-         Motorized delivery electronically controlled.

-         Visual feedback when a product has been vended or when an error condition exists.

-         No change or loss of program/memory because of power failure.

-         Cash accountability records Total Cash transactions and Total Vend cycles performed by the vending machine.  Information for individual selections, complete range (rows) or total machine can be compiled and used for inventory and ordering.

Caution:  This vending machine utilizes DC motors.  Do not attempt to turn augers by hand.  Motor damage could occur.

The vending sequences is "first-in, first-out" for each selection, eliminating the need for stock rotation to maintain fresh products in the vend area.

This manual should be read thoroughly to become familiar with the functions of all components, along with the features that are available. The initial set-up of a vending machine is very important in insuring trouble-free operation of the equipment. Following the instructions at the initial installation of the machine will avoid service problems and minimize set-up time.

UNPACKING 

This vending machine was thoroughly inspected before leaving the factory and the delivering carrier has accepted this vending machine as their responsibility. Any damage or irregularities should be noted at the time & delivery and reported to the carrier. Request a written inspection report from the claims inspector to file any claim for damage. File the claim with the carrier (not the manufacturer) within 15 days after receipt of the vending machine.   Carefully remove the outside packing material in a manner not to damage the finish or exterior of the vending machine. Inspect the vending machine for concealed shipping damage.  Report any damage hidden by the shipping material directly to the delivering carrier on a Hidden Damage Report.   Remove the "Knock-Away" support by sliding a pallet jack under the vending machine, inserting a screwdriver or prying tool into the groove of the Knock-Away and splitting it in two as shown in Figure 1. Turn the leveling screws in as far as possible. 

INSTALLATION 

Consult local, state and country codes and regulations before installing the vending machine.  Please refer also to the Safety Manual & Installation Guidelines (P/N 4206816) supplied with your vending machine.

Caution:  To insure reliability and maintain manufacturer's equipment warranty, vending machine must NOT be placed in and environment where the temperature is greater than 100°F/37.8°C and the relative humidity is 65% greater.

Warning:  DO NOT USE EXTENSION CORDS. Extension cords can cause problems.

1. Position the vending machine in its place of operation no further than 6 feet (2 m) from the power outlet or receptacle.
2. Leave at least 6 inches (15 cm) of space between the back of the vending machine and any wall or obstruction for proper air circulation.
3. Retrieve the keys to the vending machine from the coin return cup.
4. Open the vending machine door and remove all internal packing material.
5. Check that the vending machine door will open fully without interference.
6. Level the vending machine. Make sure all levelers are touching the floor. The vending machine must be level for proper operation and acceptance of coins through the coin changer. When the vending machine is level, the door can be opened to any position and not move by itself. Try the door half closed, straight out and in the wide open position before deciding that the vending machine is level.

GROUNDING (EARTHING) & ELECTRICAL
Please refer to the Safety Manual & Installation Guidelines (PIN 4206816) supplied with your vending machine. Before connecting the vending machine, the integrity of the main electrical supply must be checked for correct polarity, voltage, (earth) ground, and (amperage) circuit protection. It is recommended that these checks be repeated at 6 month intervals alon9 with the routine safety electrical testing of the equipment itself. Consult a qualified electrician to correct negative voltage, amperage, polarity, or ground (earth) checks.  For proper operation of any equipment utilizing electronically controlled components, the
equipment should be placed on an isolated or dedicated noise-free circuit.  A noise suppressor has been installed in this machine to compensate for any signal noise that could interfere with the normal operation of the controller.

Power Switch 

Each vending machine is equipped with a power switch located on the transformer panel along with a 3 amp breaker.  The witch will shut-off the light and controller.  See Figure 2.  The 3 amp breaker is protection for the transformer.

LOADING SNACKS 

1. Lift the front of the tray slightly and pull forward slowly until the tray stops. 2. Lift the front up and pull forward one inch and allow tray to tilt down all the way to loading position.
3. Load products from front to back, making sure all items fit freely between the augers. Do not attempt to force oversize items or packages into the spaces. Do not skip a space.
5. Place the product on the bottom of the compartment on the product augers, with the label facing the front of the machine for easy identification by the customer. See Figure 3.
6. When finished loading the tray, use both hands to lift the front end of the tray so that it is slightly above horizontal and push it back slightly to let the rollers clear the rear ramp detent. Let down to horizontal position.
7. Push it back into the cabinet until it ramps into the front ramp detent and stops. All trays must be pressed to the rear of the cabinet and properly seated in the detent position.
8. Tray is ready for vending. Repeat steps as necessary to other trays.

The size of the item being vended must be larger in diameter of the auger being used.  Undersize items could cause vend problems.  If the product does not fit the auger properly, use a different pitched auger or appropriate product spacer.  See the following table for augers available from your distributor or service entity.

Product Ejectors 

Product ejectors can be added to the end of the augers to help move the product out of the tray area (see Figure 4).

AUGER TIMING
Difficult to vend items can be dispensed more dependably by retiming the augers.  Each auger can be rotated in 200 degree increments, changing the auger position for a different drop off point at the front of the tray.  Most items can be vended successfully when the auger end is positioned at 6 o'clock.  For dual drive augers, the ideal timing is for the auger ends to meet at the center of the tray: left auger at 3 o'clock, right auger at 9 o'clock.  If you have trouble vending odd sized or odd shaped items, auger retiming can be accomplished on a trial and error basis as follows:

1. Disconnect power before servicing.

2. Pull the tray containing the auger to be retimed forward to its stop.

3. Remove products from the tray.

4. Remove the motor cover.

5. Raise the motor slightly and pull forward on the auger until it separates from the motor. See Figure 5.

6. Rotate the auger to the desired position and reinsert the auger coupling into the motor.

7. Position the auger coupling so that it is seated over the vertical rail or retaining rib on the tray.

8. Replace the motor cover and securely tighten.

TRAY CONFIGURATION 

By changing the tray configuration, different product mixes can be accommodated.

CANDY TO SNACK 

1. Order the conversion kit from your local distributor or service entity.
2. Unplug and remove the tray assembly from the vending machine. Place the tray harness in the tray before removal.
3. Remove existing tray divider and store for possible future use.
4. Remove existing auger assemblies and store for possible future use.
5. Remove the existing "even" number motor. This motor will not be needed.
6. Dress terminals removed from the motor around the tray harness and tape in place.
7. Mode the "odd" numbered motor to the center slot of the compartment.
8. Install the auger retainer (furnished as part of the conversion kit).
9. Install auger assembly (furnished as part of the conversion kit), making sure the motor coupling properly engages the motor and is securely snapped over the vertical rail or retaining rib on the tray. See Figure 5.
10. Replace the tray assembly into the vending machine making sure that the tray is properly located and latched and connect the tray harness.
11. Set the selection to the desired vend price and adjust the price scroll to agree.
12. Test vend the converted selections for proper operation and price settings.  

NOTE:  In large item selections, the selection numbers will be the "odd" numbers.  For example: selections C3 and C4 are converted to a single selection C3.

SNACK TO CANDY 

1. Order the conversion kit from your local distributor or service entity.
2. Unplug and remove the tray assembly from the vending machine. Place the tray harness in the tray before removal.
3. Remove the existing auger assembly and store for possible future use.
4. Remove the auger retainer and store for possible future use.
5. Move motor from the center slot to the left slot in the compartment.
6. Add the new motor (furnished as part of the conversion kit) in the right hand slot of the compartment.
7. Properly wire the motor and switch. Refer to schematic section for wire colors and locations.
8. Add the divider furnished as part of the conversion kit.
9. Install new auger assemblies (furnished in conversion kit), making sure the motor couplings properly engage with the motor and are securely snapped over the vertical rail or retaining rib on the tray.
10. Replace the tray assembly into the vending machine making sure that the tray is properly located and latched and connect the tray harness.
11. Set the selections to the desired vend price and adjust the price scrolls.
12. Test vend the converted selection for proper operation and price settings.

TRAY SPACING 

By altering tray spacing, taller items can be vended.  The trays can be raised or lowered in 1 inch (2.5 cm) increments to provide additional headroom fro vending taller items.  When increasing the headroom between two trays, a corresponding decrease in headroom of an adjoining tray will result. 

CHANGE VERTICAL TRAY SPACING
1. Select the tray that needs adjusting. Remove any product from the tray.
2. Lift the front of the tray to expose the tray release levers located on the left and right tray rails. Swing the release levers all the way up to unlatch.
3. Lift up on the front of the tray and pull slightly forward approximately 112" inch (1.3 cm) to clear the tray stop.
4. Pull the tray out about halfway. Reach underneath the tray and squeeze the top and bottom of the tray harness plug (release tabs) and pull to disconnect it from the receptacle.

5. Pull the tray out until it tilts down. Lift the mar of the tray and remove it from the vending machine.
6. Relocate both the left and right tray rails from the left and right side walls.
a. Remove the tray rail mounting screws.
b. Pull each rail forward to disengage its rear tab from the hole in the rear wall. See Figure 6.
c. Insert rail to its new location by inserting the rear tab into the hole in the rear wall.
d. Rails must be level front to back and right side to left side.
e. Install the tray rail mounting screws.

7. Replace the tray by placing its rear rollers on the left and right rails.  Connect the tray harness plug to its receptacle on the back of the cabinet by reaching underneath the tray.

8. Test vend the tray in its new position to assure that the tray plug is properly seated.

COIN CHANGER & DOLLAR BILL CHANGER 

Caution:  Do not plug in or unplug the coin changer with the power on!

The controller will monitor the condition of the coin changer at all times.  Any activity (coins inserted) will be recorded and stored in the controller.

REMOVING ACCEPTED BILLS
Accepting bills may be removed by opening the "bill box" lid or by removing the bill box from the validator. (See manual from validator manufacturer). If the bill box is removed, make sure that it is fully latched in place when it is returned to the validator.

CLEARING JAMS & CLEANING
Trapped bills, debris or dirt can result in poor bill acceptance or bill rejection. Remove the bill box and lower housing to clear trapped bills or debris. Clean the bill path plastic parts or belts with a cloth moistened with a mild soap and water solution. Clean the magnetic head and optic sensor using a swab and isopropyl alcohol. See manual from validator manufacturer.

Caution:  Do not use any petroleum based cleaning solvents, scouting pads or stiff brushes for cleaning.

CONTROLLER 

There are two modes of operation: Sales Mode and Service Mode.

SALES MODE
This is the default mode when the machine is turned on. The vending machine accepts deposits, pays out change, and dispenses products to customers. The 10 character scrolling display is used to communicate with the customer.

DISPLAY CREDIT
• When credit is deposited, the amount (up to five digits) is displayed.
• If the payout tubes in the coin mechanism are below the low-level sensors, the message "PLEASE INSERT EXACT MONEY" will scroll on the display.

MAKE SELECTION
• When a selection is made and the accumulated credit is less than the selection price, then the price is displayed for one (1) second followed by the message "PLEASE INSERT MORE MONEY".
• When a selection is made and the accumulated credit is greater than or equal to the price of the selection, then a vend attempt will take place.

VEND CYCLE
Selections A thru C have been assigned at the factory to be monitored for iVend optical sensing.
They will have an associated vend operation that differs from the normal vend operation.
For 5 milliseconds (5 msec.) at the start of a vend, the iVend optical sensor will be checked for blockage. If blocked - the normal home-switch-vend cycle will be used and the optical sensors will be ignored. Both the vend motor and a 9 second vend timeout timer are started.
• The selection motor rotates to the home-switch position.
• If there is a home-switch signal, then the vend is considered successful.
• If after 9 seconds and there is no home-switch signal, then the vend failed. The vend motor is shut down and the message MAKE ALTERNATE SELECTION" is displayed. The customer can press the selection buttons to activate this or another motor or press the coin return button.

NOTE: Force vend is overridden under this vend cycle.

If not blocked - the iVend™ Sensor System is used. The vend motor and a nine second (9 sec)
vend timeout timer are started.
• The selection motor rotates to the home-switch position.
• If a product is detected during this time period, then the vend is considered successful.
• If after reaching the home-switch position and a product is not detected, then the vend motor will pause for I second while the controller continues to monitor the optical sensor for product delivery.
• If a product is detected during this pause, then the vend is considered successful.
• If a product is not detected, then the controller initiates a second vend cycle and a 9 second timer while continuing to monitor the optical sensor.
• If a product is detected during this second cycle, then the motor will be stopped immediately. The vend is considered successful. The 2ND VEND counter is increased by one.
• If a product is not detected and the motor reaches the home-switch position or if a 9 second timer runs out, then the vend has failed or the selection is sold out. Such a state will trigger the display of the "MAKE ALTERNATE SELECTION" message. The amount of credit is displayed. The customer can press selection buttons to activate this or another motor, or press the coin return button.

All motors are reinstated to operative mode. The exception is when the OPTICS mode is enabled and AUTOREINST is inactive for the particular selection and no product is detected by the optical sensors. The controller will prevent further attempts to vend the particular selection until the selection's sold out error status is cleared by running a test vend of that selection. See the TEST VEND section of this manual.

CREDIT & COUNTERS
After a successful vend:
• The amount of remaining credit will be displayed until all coinage is paid back.
• The HIST COUNT (total vends count) will be incremented by one (1) and the HIST CASH (total cash count) will be incremented by the price of the vended selection. The counter rollovers occur at 79,999,920 and $99, 9999.95 respectively.
• If a product is detected during the second vend cycle, then the 2ND VEND record counter is increased by one.
• The RES COUNT (re-settable vend count) will be incremented by one (1). The RES SALE (re-settable total cash value) counter will be incremented by the price of the selected vended. The counter rollovers occur at 79,999,920 and $99,999.95 respectively if never reset. The counters are viewable in the accounting menu as well as through a DEXIUCS download. Refer to the 120 Select Programming Manual (P/N 4212619) for additional information on DEXIUCS fields.

NOTE: Test vends are not included in the counter totals.

SERVICE MODE 

The service mode is used by the operator to change program settings and service the machine.  The display is used to communicate with operator.  To enter the service mode, push the service mode button once.  The service mode button is located on the control cover.  See Figure 7.  If credit exists when entering the Service Mode, it will be restored when the machine is returned to the Sales Mode.

NOTE:  If credit exists when entering the Service Mode, then it will be restored when the machine is returned to Sales mode.  While in Service Mode, the controller will automatically exit back to Sales Mode if no key is pressed approximately 25 minutes.

Read and follow the basic programming instructions listed below to set prices, view and reset accounting records, display working motors, test selection motors, and dispense coins from the coin changer.  To access the controller's other menu features, please refer to the 120 Select Programming Manual (P/N 4212619) for additional instructions.

DEX/UCS
DEX/UCS or DEX stands for Data Exchange/Uniform Communications Standard. Within the vending industry, it defines the transfer of information/data between a Hand Held Computer (HHC) or data collector and the electronic vending machine. Please refer to DEXIUCS section of the 120 Select Controller Programming Manual (PIN 4212619) for the list of DEXIUCS field codes, descriptions and explanations.

TO INITIATE DATA EXCHANGE:
The vending machine controller must be in SALES MODE. Use a connecting cable and plug in an HHC or data collector to the DEX port. The DEX port is located just below the instructional decal on the control board cover. See Figure 10. The exchange of information will begin automatically. All re-settable counters are automatically cleared (set to zero).  

iVEND™ SENSORS 

CARE & CLEANING 

Caution:  Always disconnect power source BEFORE cleaning or servicing.

CABINET EXTERIOR
• Wash with warm water and a mild detergent rinse thoroughly and dry with a non-abrasive lint free cloth.
• Wash occasionally with a quality grade liquid or paste auto wax.
• Minor scratches can be smooth with rubbing compound, but deep scratches should be touched up with paint to prevent rust.
• Plastic parts should be cleaned with non-abrasive plastic cleaner Jeweler's "rouge" can sometimes be used to polish out scratches in plastic.

Warning: Do not get the cleaning solution on electrical components.

CABINET INTERIOR
• Remove power from machine. Wash with warm water and a mild detergent. Rinse thoroughly and dry with a non-abrasive lint free cloth.
• Offensive odors may be eliminated by adding baking soda or ammonia to the cleaning solution.
• Paint brushes may be used to clean hard to reach areas such as cabinet and delivery box corners. A damp sponge will pick up loose particles from the delivery box.
• The vend motors and augers in the Snack Food Vending Machine require no lubrication. Spray cleaners, lubricants or silicone may damage these moving parts.
• The nylon tray rollers need no lubrication but do require occasional cleaning for smooth operation.
• The vend door and anti-cheat moving parts also require cleaning without lubrication.
• The main door hinges should require no lubrication provided the cabinet is installed level. Occasional lubrication of the main door lock screw and lock nut with a quality lubricant such as lithium grease will allow the locking mechanism to function more smoothly.
• The electronic coin changer is designed to operate without lubrication and minimal cleaning. Occasionally open the door acceptor portion and wipe the exposed surfaces with a damp cloth.

PARTS ORDERING PROCEDURE 

When ordering parts, include the following:

1. The model and serial numbers of the machine for which the parts are needed.

2. Shipping address.

3. Address where the invoice should be sent.

4. The number of parts required.

5. Always refer to the pertinent parts and/or parts manual for the correct part number and description of a specific part. When RIGHT or LEFT is used with the name of a part, it means the person is facing the machine with the door closed,

6. Any special shipping instructions.

7. Carrier desired: air or air special, truck, parcel post or rail.

8. Signature and date.

9. If a purchase order number is used, then be sure it is visible and legible.

Mail your order to:

VendNet

165 North 10th Street

Waukee, IA 50263
USA  

BEFORE CALLING FOR SERVICE 

Please check the following:
• Does your machine have at least 6 inches (15.2 cm) of clear air space behind it?
• If the power is turned on at the fuse box, is the machine the only thing that does not work?
• Is the machine plugged directly into the outlet?

WARNING:
DO NOT USE EXTENSION CORDS. Extension cords can cause problems.

• Is the evaporator coil free of dust and dirt?
• Is the condenser coil free of dust and dirt?
• Is the compressor free of dust? A blanket of dust can prevent the compressor from cooling in between workouts.
• Is the circuit breaker at the fuse box reset?
• Are evaporator fans running? To check if fans are running take a small piece of paper in front of the evaporator coil and see if the evaporator fans will blow the paper away.
• Is the condenser fan running? Fold a sheet of 8-1/2" x 11" paper in half. Place the paper in from of the condenser coils and see if it draws paper to it.
• Is the shelf in front of the evaporator coil clear? No tools, product, or other air restricting items.
• Is the cold control set as specified? Setting the temperature colder does not accelerate cooling of product but may and may cause the product to freeze.  

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to model or improve the designs or specifications of such products at any time without notice.