Dixie Narco 90 Series User Manual

SERVICE MANUAL
SERIES 90
SINGLE PRICE / SIID
E-MODEL VENDERS
Beginning Serial #0001-6368DU
October 1996
Operation Manual
Set-Up
Troubleshooting
January 20, 1998
Dixie-Narco Blvd.
P.O. Drawer 719
Williston
,
South Carolina 29853
Ph: (803) 266-5000 Fax: (803) 266-5150
803,902,760.11

Dixie Narco 90 Series Specifications

General

Brand	Dixie Narco
Model	90 Series
Category	Vending machines
Language	English

Summary

General Information

Vender Safety Precautions

Safety precautions for qualified service technicians. Risk of injury or electrical shock.

Product Identification

Serial number format to identify quarter and year of manufacture.

Installation and Setup

Receiving Inspection

Inspect for shipping damage and notify Dixie-Narco.

Unpacking the Vender

Remove wrap, covers, shipping boards, and check parts.

Electric Power Needed

Specifies voltage, frequency, and circuit requirements for operation.

Ground the Vendor

Coin Changers

Information on coin changer installation and compatibility for Series 90.

Single Price Venders

Lists compatible coin changers for single-price venders.

SIID Venders

Lists compatible coin changers for SIID venders.

Installing a Coin Changer

Bill Acceptors

Information on bill acceptor installation and interface harnesses.

Bill Acceptor Interface Harnesses - SIID

Tables listing compatible acceptors for Pepsi-Cola and Coca-Cola venders.

Placing the Vender on Location

Level the Vender

Procedures to ensure the vender is level for proper door operation and stability.

Space the Vender

Guidelines for maintaining adequate airflow around the vender.

Installing Flavor Cards

Methods for inserting flavor cards into select buttons or carriers.

Cleaning the Vender

Sign Face

Proper cleaning techniques for the polycarbonate sign face to prevent damage.

Cabinet

Cleaning and waxing procedures for the vender cabinet.

Refrigeration Condenser

Checking and cleaning the condenser for dirt and lint build-up.

Lubricating the Vender

Temperature Control Adjustments

Adjustment #1 - Temperature Adjustment

How to adjust the temperature pointer for colder or warmer product.

Adjustment #2 - Altitude Adjustment

Instructions for adjusting range screws based on altitude for freeze prevention.

Check It Out

What to Do / What Should Happen

Table outlining actions and expected results for initial testing.

Electrical Parts and Functions

Correct Change Lamp

Description and function of the correct change lamp.

Select Switch

Details on the select switch and its operation in single price and SIID venders.

Sold Out Switches

Single Price Venders

Function of front and vend sold-out switches in single price venders.

SIID Venders

Function of vend sold-out switch in SIID venders.

Sold Out Lamps - (Single Price Venders Only)

Vend Motor

Single Price Vender

How the vend motor operates in single price venders.

SIID Vender

How the vend motor operates in SIID venders.

Vend Motor Switch

Single Price Vender

Function of vend motor and by-pass switches in single price venders.

How the Vend/By-Pass Switches Work

Single Price Venders

Step-by-step operation of switches in single price venders.

SIID Vender

Operation of the vend motor switch in SIID venders.

Vend Relay (Single Price Only)

Sequence Relay

Function of the sequence relay in single price venders.

Vend Motor Wide Column

Vend Motor Narrow Column

E-Model Shimming

Wide Column Shims

Shimming requirements for wide column configurations.

Narrow Column Shims

Shimming requirements for narrow column configurations.

Rear Spacer

Details on rear spacer adjustment holes.

Adjustments – Cams / Rear Spacers

Cams for Vend Motors

Details and diagrams of different vending cams and their applications.

Cam Installation and Removal

To Install a Vending Cam

Steps for installing a vending cam onto the motor shaft.

To Install an Adjustable Cam

Steps for installing an adjustable cam.

To Remove an Adjustable Cam

Steps for removing an adjustable cam.

To Remove the Vending Cam

Steps for removing a vending cam.

Timing

To Set the Timing of a Narrow Column Vend Motor

Step-by-step guide for timing narrow column vend motors.

To Set the Timing of a Wide Column Vend Motor

Step-by-step guide for timing wide column vend motors.

Rear Spacer

Vend Cycle / Sequence of Operation

Vend Cycle

Step-by-step breakdown of the single price vending process.

Sequence of Operation

SIID Controller Style Coin Mech Escrow to Price and No Bill Escrow (PR)

Flowchart of the sequence of operation for PR type SIID coin mechs.

Sequence of Operation

SIID Controller Style Coin Mech Escrow to Select / Last Bill Escrow (E-S1)

Flowchart of the sequence of operation for E-S1 type SIID coin mechs.

Sequence of Operation

SIID Controller Style Coin Mech Escrow to Select / No Bill Escrow (E-S4)

Flowchart of the sequence of operation for E-S4 type SIID coin mechs.

Corrections for Common Single Price Vender Vending Problems

Note

General note about inoperative circuits typically being a single component failure.

Figure 1 Control Panel (Select Button and Select Switch Location)

Diagram of a typical control panel layout.

Accepts Coins, Will Not Vend from One or More Columns

Problem 1: Selections 9, 8, and 7 work. Selections 6, 5, 4, 3, 2, and 1 do not work.

Troubleshooting steps for a specific set of non-functioning selections.

Problem 2: Selections 9, 8, 7, 6, 5, and 4 work. Selections 3, 2, and 1 do not work.

Troubleshooting steps for another set of non-functioning selections.

Accepts Coins But Will Not Vend

Troubleshooting for when the vender accepts coins but does not vend.

Accepts Coins but Will Not Vend from One Column

Problem 1: Accepts coins but will not vend from one column.

Specific example of a single column vend failure.

Rejects All Good Coins

Problem 1: The coin changer will not accept coins.

Steps to troubleshoot a coin changer that does not accept coins.

Drifting Motor and Jack-Potting Problem

Symptom 1: The Vend Motor Drifts

Checks and solutions for a drifting vend motor.

Symptom 2: Two beverages delivered in a cycle and the next cycle is a dry vend.

Troubleshooting for incorrect beverage delivery cycles.

Symptom 3: Two beverages delivered in a given cycle.

Troubleshooting for incorrect beverage delivery counts.

Symptom 4: Pre-Select, i.e. set up credit, push no button and product is vended time after time.

Troubleshooting for unintended continuous vending.

Accepts Coins and Will Vend, Then Rejects Coins But Will Continue to Free-Vend

Problem 1: Set Up Credit / Rejects coins

Steps to diagnose and fix credit handling issues.

Troubleshooting SIID Vending

1. Problem: Free vend on one column.

Troubleshooting for single column free vending.

2. Problem: One motor continues to home...

Troubleshooting for motor homing issues and diagnostic codes.

3. Problem: One column sold out, but still vends.

Troubleshooting for sold-out columns that still vend.

4. Problem: Vender will not sequence (Coca-Cola only).

Troubleshooting for sequence issues in Coca-Cola venders.

5. Problem: Free vend on one or more columns.

Troubleshooting for multiple column free vending.

6. Problem: Column Jackpots.

Troubleshooting for column jackpot issues.

7. Problem: Column will not vend.

Troubleshooting for columns that fail to vend.

8. Problem: Motor stops on high cam.

Troubleshooting for motor stopping issues on high cam.

SIID Coin / Currency

1. Problem: Will not accept coins or bills.

Steps to resolve coin/bill acceptance failures.

2. Problem: Validator sometimes sets up credit and then steals bill.

Troubleshooting for validator credit/bill theft issues.

3. Problem: Accepts coins and displays, but will not vend.

Troubleshooting for coin acceptance without vending.

4. Problem: Incorrect change paid back, use correct change lamp stays on.

Troubleshooting for incorrect change dispensing.

5. Problem: Cannot dump coins when in "Cd" mode or "CPO" mode.

Troubleshooting for coin dumping issues.

6. Problem: BA30 stealing bills.

Troubleshooting for BA30 bill stealing issues.

SIID Sold-Out Message

1. Problem: Sold-out message stays on.

Steps for when the sold-out message remains active.

2. Problem: Sold-out message comes on with product in column.

Troubleshooting for sold-out messages appearing with product present.

3. Problem: Sold-out switches work the incorrect column.

Troubleshooting for misdirected sold-out switch signals.

SIID Select Panel / Display

1. Problem: Plug in vender and displays a blank or "rrrr" appears on the display; vender will not function.

Troubleshooting for blank or error displays on the select panel.

2. Problem: Display will not function.

Troubleshooting steps for a non-functional display.

3. Problem: Display shows $1 and then increases in dollar increments with door closed

Troubleshooting for incorrect display increments.

4. Problem: Cannot set price on a given selection.

Troubleshooting for inability to set prices on selections.

5. Problem: Vender changes a set vend price to .10¢ on selections on its own.

Troubleshooting for automatic price changes.

6. Problem: Control board looses its memory when power is shut off to vender.

Troubleshooting for memory loss in the control board.

Select Panel Troubleshooting Chart

Problem: When vender powers up, 1-1 scrolls on the display.

Flowchart for diagnosing "1-1" display scrolling issue.

Select Panel Problems

Problem: Cannot enter menu or diagnostic menu.

Flowchart for diagnosing inability to access menus.

Select Panel Problems

Problem: 1 or more switches not functional.

Flowchart for diagnosing faulty select switches.

Sold-Out Switch Problem

Problem: Vender will not recognize a sold-out column.

Flowchart for diagnosing sold-out switch recognition issues.

Note Acceptor Troubleshooting USA Low Level

Problem: Acceptor will not take notes or does not display them.

Flowchart for diagnosing USA low-level acceptor issues.

Note Acceptor Troubleshooting Mars VFM1 or VFM3 Low Level Acceptor

Problem: Note acceptor will not accept money; or takes note and does not display credit.

Flowchart for diagnosing Mars VFM1/VFM3 acceptor issues.

High Level Note Acceptor Troubleshooting Chart (All Acceptors)

Problem: Note Acceptor will not take note or display credit when it does take note.

Flowchart for diagnosing high-level acceptor issues.

Troubleshooting Chart Multidrop Coin Mech / Note Acceptor

Problem: Note acceptor will not accept notes, and the exact change light is off.

Flowchart for multidrop note acceptor/coin mech problems.

Troubleshooting Chart Multidrop Coin Mech

Problem: Mech will not accept coins

Flowchart for multidrop coin mech coin acceptance issues.

Coin Mech Troubleshooting Flow Chart MC-5000 (Micro Mechs)

All Coin Mechs

General troubleshooting for MC-5000 coin mechs.

Coin Mech Troubleshooting Chart

MC-5000 (Micro Mech) Interface Maka Only

Flowchart for MC-5000 coin mech issues with Maka.

Problem: Mech will not accept coins.

Specific troubleshooting for coin acceptance problems.

Refrigeration Parts and Functions

Mechanical Parts

Detailed explanation of compressor, condenser, fans, etc.

Electrical Parts

Temperature Control

Function of the temperature control switch.

Thermal Overload Assembly

Function of the thermal overload switch.

Starting Relay

Function of the starting relay.

Electrical Operation

When the Vender Temperature Gets Up to the Cut-In Setting

Operation sequence when temperature rises to cut-in point.

When the Compressor Motor Gets Up to Speed

How the compressor motor reaches speed.

When the Vender Temperature Gets Down to the Cut-Out Setting

Operation sequence when temperature drops to cut-out point.

Compressor Motor Run Winding Circuit

Switches in the Wiring / What the Switches Do / What Makes the Switches Work

Details on temperature control, start relay, and thermal overload switches.

Refrigeration Circuit Diagrams

Refrigeration Cycle

What Does It / What Happens

Table detailing the steps and outcomes of the refrigeration cycle.

Symptom: Product Hot

Possible Cause: Compressor Will Not Run.

Step-by-step checks for compressor not running.

Symptom: Product Hot

Possible Cause: Compressor Starts But Will Not Keep Running

Checks for when the compressor starts but stops.

Possible Cause: Miscellaneous

Troubleshooting for other product hot related issues.

Symptom: Product Cold But Not Cold Enough

Possible Cause: Compressor Runs But Will Not Cool Product

Checks for when the compressor runs but cooling fails.

Symptom: Product Too Cold or Frozen

Possible Cause: Compressor Runs Too Long or Continuously

Checks for continuous compressor operation causing freezing.

Symptom: Noisy Refrigeration Unit

Solution

Checks for causes of refrigeration unit noise.

Symptom: Excessive Condensate

Solution

Checks and solutions for excessive condensate issues.