Dixie Narco 90 Series User manual

803,902,620.01
DIXIE-NARCO
SERVICE MANUAL
SERIES 90
TWO/FOUR PRICE
VENDERS
(With Vend/Cam-Hold/By-Pass Switches)
Beginning Serial# 0001-6000CO
April 1997

INDEX
General Information......................................................................................................................Page 3
Installation / Set-Up / General Maintenance ............................................................Pages 4 through 11
Electrical Parts & Functions ...................................................................................Pages 12 through 19
Product Shimming ......................................................................................................................Page 20
Adjustments: Cams/Rear Spacers...........................................................................Pages 21 through 24
Sequence of Operation................................................................................................................Page 25
Troubleshooting ............................................................................................................ Pages 26 and 27
Refrigeration
Parts & Functions..............................................................................................Pages 28 through 31
Refrigeration Cycle...............................................................................................................Page 32
Refrigeration Troubleshooting..........................................................................Pages 33 through 37
Product Hot - Compressor will not run........................................................................Page 33
Product Hot - Compressor starts but will not keep running ........................................Page 34
Product Hot - Miscellaneous........................................................................................Page 34
Product Cold But Not Cold Enough - Compressor runs but won't cool product.........Page 35
Product Too Cold or Frozen - Compressor runs too long or continuously.................Page 36
Noisy Refrigeration Unit .............................................................................................Page 36
Excessive Condensate..................................................................................................Page 37
Electrical Schematics.................................................................................................... Pages 38 and 39
DIXIE-NARCO, INC.
P.O. Drawer 719
Williston, SC 29853
Phone: [phone]
Phone: [phone]
Fax: [phone]
Page 2 of 39

GENERAL INFORMATION
VENDER SAFETY PRECAUTIONS
Please read this manual in its entirety. This service information is intended to be
used by a qualified service technician, who is familiar with proper and safe
procedures to be followed when repairing, replacing or adjusting any Dixie-Narco
vender components. All repairs should be performed by a qualified service
technician who is equipped with the proper tools. Use only genuine Dixie-Narco
Factory replacement components.
Repairs and/or servicing attempted by untrained persons can result in hazards
developing due to improper assembly or adjustments while performing such
repairs. Persons not having the proper background may subject themselves to the
risk of injury or electrical shock which can be serious or even fatal.
PRODUCT IDENTIFICATION
The age of Dixie-Narco products is determined by the date code incorporated in the serial number.
The vender serial number takes the form xxxx-yyyyzz. The first 4 digits (xxxx) identify the specific vender.
The next 4 digits (yyyy) identify the manufacturing run that the vender was built in. The last two alpha
characters (zz) identify the quarter and the year the vender was built. The first alpha character identifies the
quarter:
A = 1st quarter
B = 2nd quarter
C = 3rd quarter
D = 4th quarter
The second alpha-character identifies the year:
O = 1990 U = 1996
P = 1991 V - 1997
Q = 1992 W = 1998
R = 1993 X - 1999
S = 1994 Y = 2000
T = 1995
General Information Page 3 of 39

INSTALLATION / SET-UP /
GENERAL MAINTENANCE
SERIES 90 CAN & BOTTLE VENDER
RECEIVING INSPECTION
Upon receipt, inspect the vender for shipping damage. If there is any damage, have the driver note the
damage on the Bill of Lading and notify Dixie-Narco. Although the terms of the vender sale require that the
consignee originate shipping damage claims, Dixie-Narco will gladly help if you must file a claim.
UNPACKING THE VENDERS
Remove the stretch wrap and top cover from the vender. If flavor cards were shipped with your vender they
will be in an envelope affixed to the back of a vender in the shipment or in the cash box.
Remove the shipping boards from the bottom of the vender. The shipping boards are attached by the
leveling legs. Remove the shipping boards by unscrewing the leveling legs. This will avoid unnecessary
damage to the leveling legs or the base. A 1½ inch "socket type" wrench should be used on the bottom of
the leveling legs. Be sure to replace the legs after removing the shipping boards.
NOTE
DO NOT STORE THE VENDER OUTSIDE WITH THE STRETCH WRAP ON.
THIS COULD CAUSE THE STRETCH WRAP TO BOND TO THE VENDER'S SURFACE,
WHICH COULD DAMAGE THE FINISH.
To open the vender, locate the door lock keys which are secured inside the coin return cup. After unlocking
the door, rotate the "T"-handle counter-clockwise until the door can be opened. Once inside, check the coin
box on the door for any additional parts, pricing labels, or information concerning factory equipped
accessories. Check the "T"-handle for proper alignment and locking functions. Check the lamps for proper
installation.
WARNING! Ensure that power is disconnected from the vender or that the power
interrupt switch (if provided) is not defeated before inspectin
g
or replacin
g
the lamps. Failure to compl
y
with these instructions ma
y
sub
j
ect the user to
the risk of injury or electrical shock, which can be serious or fatal.
Installation/Set-Up/General Maintenance Page 4 of 39

ELECTRIC POWER NEEDED
Refer to the vender serial number plate to determine the proper voltage and frequency the machine requires
(domestically this requirement is 115 Volts, 60 Hertz). Domestic venders will operate properly at +/- 10% of
the specified voltage. For domestic models this is between 103 volts and 127 volts. Single phase,
alternating current is required. The vender must be plugged in its own properly rated circuit with its own
circuit protection (fuse/circuit breaker).
DO NOT USE AN EXTENSION CORD.
GROUND THE VENDER
The vender is equipped with a three wire power supply cord and MUST be plugged in a properly grounded
outlet.
If the outlet will not accept the power cord plug, contact an electrician to install a proper AC outlet.
DO NOT REMOVE THE GROUND PIN OR IN ANY WAY BYPASS THE GROUNDING OF
THE VENDER
COIN CHANGERS AND OTHER ACCESSORIES
WARNING!
Failure to compl
y
with these instructions ma
y
sub
j
ect the user to the
risk of injury or electrical shock, which can be serious or fatal.
The Series 90 vender must have a 115 Volt 2/4 Price Coin Changer installed. Some styles can have a bill
acceptor installed. If the coin changer and other accessories are not factory installed refer to the instructions
received from the manufacturer of the coin changer and other accessories for proper set-up and installation.
INSTALLING A COIN CHANGER
Open the main door. Hang the coin changer on its mounting plate and secure it by tightening the three
securing screws in the vender. Set the vend prices according to the manufacturer's instructions. Plug the
coin changer in the 8-pin Jones socket in the vender. Manually load all the coin changer tubes with at least
ten coins each and "prime" the coin changer by making one correct change transaction.
BILL ACCEPTORS
Note: If a bill acceptor is not factory installed a bill acceptor interface harness may be required. Contact
the bill acceptor manufacturer or Dixie-Narco for interfacing information.
Installation/Set-Up/General Maintenance Page 5 of 39

PLACING THE VENDER ON LOCATION
DO NOT TRANSPORT THE VENDER TO OR FROM THE
LOCATION WHEN IT IS LOADED WITH PRODUCT; DAMAGE TO
THE VENDER MAY RESULT.
CAUTION!
The vender must be located on a solid, flat, and level surface. The vender must be positioned close enough
to an electrical outlet that an extension cord is not required. If securing the vender to the floor or wall is
required, call the Dixie-Narco Factory Service Department or your Dixie-Narco Representative for
suggestions.
LEVEL THE VENDER
Level the vender. When the vender is level the door can be opened to any position and it will not move by
itself. Open the door to several different positions before deciding the vender is level. A carpenter's level
will help verify that the machine is level.
Make sure that all of the leveling legs are in contact with the floor. If you cannot level the vender, select
another location. Do not place any objects under the machine.
SPACE THE VENDER
The vender must be properl
y
located and leveled to minimize the risk
of injury or death from tippin
g
in the event of user misuse or
vandalism.
DANGER!
Do not block the rear of the vender. Keep the vender 4 inches (10 cm) from the wall to insure adequate
airflow to the condenser and compressor. At the front of the vender, make sure that nothing obstructs the air
intake at the bottom of the main door. At the rear of the vender, make sure nothing obstructs the air exhaust
at the bottom of the cabinet.
INITIAL LOADING
Oscillators must be in the extreme left or right position to insure proper loading. When loading wide
columns, the first row of cans should be loaded on the bottom bar of the oscillator. The second row of cans
must be loaded on the top bar of the oscillator. Rotors must be in the "cup" position to receive the first cans.
When loading narrow columns lay the rows in the column until the column is full.
Do not fill the columns to the top of the cabinet. Allow about 3 inches (7.6 cm) at the top of the column
because the can stack will move up and down in the column during the vend cycle. Correct loading will
prevent service calls and insure proper vending.
After loading a vender for the first time, test vend each selection with money until the first can is delivered.
This will ensure that the vender is loaded and working properly.
NOTE: TO INSURE PROPER AIR FLOW THROUGH THE EVAPORATOR, DO NOT PLACE
CANS (OR OTHER FOREIGN OBJECTS) IN THE BOTTOM OF THE TANK.
Installation/Set-Up/General Maintenance Page 6 of 39

INSTALLING FLAVOR CARDS
The flavor cards may be inserted one of two ways: 1) in the select buttons, or 2) in the flavor card carrier.
1.) Swing the coin changer mounting plate away from the outer door, exposing the back of the
select buttons. The flavor cards are inserted in the back of the select buttons from either side.
Ensure the flavor cards are placed in the select buttons that correspond to the column in
which the product is loaded.
2.) Swing the coin changer mounting plate away from the outer door, exposing the back of the
select panel. Remove the flavor card carrier. Ensure the flavor cards are placed in the select
button flavor card carrier position that corresponds to the column in which the product is
loaded. Install the flavor card carrier back into position.
Installation/Set-Up/General Maintenance Page 7 of 39

CLEANING THE VENDER
WHAT TO CLEAN
DO NOT USE A WATER JET OR NOZZLE TO CLEAN THE VENDER.
SIGN FACE
The polycarbonate sign face requires proper cleaning to prolong the service life of this item. It is
recommended that you periodically clean the sign face as follows:
1. Rinse the sign with a soft cloth or sponge soaked in warm water.
2. If necessary, use a mild soap to loosen any dirt or grime. To prevent damage, DO NOT SCRUB
or use a brush or squeegee, as some signs have a clear ultraviolet resistant coating to prevent
yellowing.
3. Repeat the above steps as necessary, then dry using a soft cloth to prevent spotting.
CABINET
1. Wash the cabinet with a good detergent or soap mixed in warm water.
2. Wax the vender often with a good grade of automobile wax.
3. Any corrosion inside the vender should be removed with fine steel wool and the area should be
painted with aluminum paint.
4. Repair any scratches on painted surfaces to prevent corrosion.
REFRIGERATION CONDENSER
THE COMPRESSOR ELECTRICAL CIRCUIT IS ALWAYS LIVE
WHEN THE PLUG IS CONNECTED TO AN ELECTRICAL
OUTLET.
WARNING!
1. Check the condenser periodically for dirt or lint build up.
2. Remove the build up with a brush or vacuum, or blow the dirt out of the condenser with
compressed air and approved safety nozzle.
3. Ensure nothing obstructs air intake at the bottom of the main door.
4. Ensure nothing obstructs air exhaust at the rear of the cabinet.
COIN ACCEPTOR
Follow the Coin Acceptor Manufacturer's instructions.
Installation/Set-Up/General Maintenance Page 8 of 39

LUBRICATING THE VENDER
The vender refrigeration system does not require any field lubrication. The hermetic refrigeration system
and fan motors are manufactured with lifetime lubrication.
TIME COMPONENT LUBRICANT EXAMPLE
Every 6 Months
(or as needed)
Main Door
1. Lock Bolt & Nut Retainer
2. Hinge Pivot Points
Inner Door
1. Hinge Pivot Points
Mechanics Friend
Mechanics Friend
Every Year
(or as needed)
Inner Door
1. Door Gasket Petroleum Jelly
Installation/Set-Up/General Maintenance Page 9 of 39

TEMPERATURE CONTROL ADJUSTMENTS
Adjustment #1 - Temperature Adjustment
Turn the adjustment clockwise for colder product and counter-clockwise for warmer product. This
will change the cut-out temperature only, the cut-in temperature remains constant.
Adjustment #2 - Altitude Adjustment
WARNING
DISCONNECT POWER TO THE VENDING MACHINE BEFORE PROCEEDING
WITH THIS ADJUSTMENT.
The control is factory set for an altitude of 152 M (500 ft.). For higher altitudes, adjust the inside range
screws to prevent freeze-up of the product. Adjust the inside range screws as follows.
ALTITUDE CUTLER-HAMMER 9531N272
Meters Feet Turn both screws counter clockwise
610 2,000 1/8 Turn
1219 4,000 1/4 Turn
1829 6,000 1/2 Turn
2438 8,000 5/8 Turn
Installation/Set-Up/General Maintenance Page 10 of 39