Frymaster Sin Bad Service Manual

SERVICE MANUAL

McDonald’s

SinBaD

Series

SINGLE BASKET DISPENSER

This document is to be inserted

into the Non-Fryer Section of

the Equipment Manual.

MANUFACTURED FOR

McDONALD’S®

BY FRYMASTER, L.L.C.

P.O. BOX 51000

SHREVEPORT, LOUISIANA 71135-1000

PHONE [phone]

1 (800) 24 FRYER

FOR YOUR SAFETY

Do not store or use gasoline or other

flammable liquids and vapors in the

vicinity of this or any other appliance.

TABLE OF CONTENTS

WARRANTY STATEMENT .................................................................................................................... Page i

TROUBLESHOOTING.............................................................................................................................Page 1-1

COMPONENT REPLACEMENT .............................................................................................................Page 2-1

PARTS LIST ............................................................................................................................................Page 3-1

APPENDIX A .......................................................................................................................................... Page A-1

Frymaster L.L.C., 8700 Line Avenue 71106, 5489 Campus Drive 71129

TEL [phone] FAX (Parts) 318-219-7140 (Tech Support) 318-219-7135

Printed in the United States

P.O. Box 51000, Shreveport, Louisiana 71135-1000

Service Hotline

1-800-24-FRYER

AUGUST 2004

U.S. $7.00

8195862

xx

DANGER

IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE PROPERTY
DAMAGE, INJURY, OR DEATH. READ THE INSTALLATION, OPERATING, AND MAINTENANCE INSTRUCTIONS
THOROUGHLY BEFORE INSTALLING, OPERATING, OR SERVICING THIS EQUIPMENT.

DANGER

DO NOT ATTEMPT TO REPAIR OR REPLACE ANY COMPONENT OF THIS EQUIPMENT UNLESS ALL POWER TO THE
EQUIPMENT HAS BEEN DISCONNECTED.

DANGER

FOR YOUR SAFETY, DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE
VICINITY OF THIS OR ANY OTHER APPLIANCE.

DANGER

FRYMASTER EQUIPMENT IS MANUFACTURED FOR USE WITH THE TYPE VOLTAGE SPECIFIED ON THE EQUIPMENT
RATING PLATE. FOR PROPER ELECTRICAL INSTALLATION PROCEDURES IN THE UNITED STATES, REFER TO THE
LATEST EDITION OF THE NATIONAL ELECTRIC CODE (ANSI/N.F.P.A. NO 70). IN CANADA, REFER TO THE CANADIAN
ELECTRICAL CODE PART 1 (CSA-22.1.) FOR INSTALLATION IN COUNTRIES OTHER THAN THE UNITED STATES AND
CANADA, REFER TO THE NATIONAL CODE APPROPRIATE FOR THE COUNTRY IN WHICH THE EQUIPMENT IS BEING
INSTALLED.

WARNING

DO NOT OPERATE THIS EQUIPMENT UNLESS ALL SERVICE AND ACCESS PANELS ARE IN PLACE AND PROPERLY
SECURED.

WARNING

COMPUTERS

FCC

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: 1) This device may
not cause harmful interference, and 2) This device must accept any interference received, including interference that may
cause undesired operation. While this device is a verified Class A device, it has been shown to meet the Class B limits.

CANADA

This digital apparatus does not exceed the Class A or B limits for radio noise emissions as set out by the
ICES-003 standard of the Canadian Department of Communications.

Cet appareil numerique n’emet pas de bruits radioelectriques depassany les limites de classe a et b prescrites
dans la norme NMB-003 edictee par le ministre des communications du Canada.

HAZARD COMMUNICATION STANDARD (HCS) – WHEN THE PROCEDURES IN THIS MANUAL INCLUDE
THE USE OF CHEMICAL PRODUCTS, THE PRODUCTS WILL BE PRINTED IN BOLD FACE, FOLLOWED BY
THE ABBREVIATION HCS IN THE TEXT PORTION OF THE PROCEDURE. SEE THE HAZARD
COMMUNICATION STANDARD (HCS) MANUAL FOR THE APPROPRIATE MATERIAL SAFETY DATA SHEET
(MSDS).

xx

McDonald’s SinBaD

SINGLE BASKET DISPENSER

WARRANTY STATEMENT

Frymaster L.L.C. makes the following limited warranties to the original purchaser only for this equipment and
replacement parts:

Warranty Provisions

Frymaster L.L.C. warrants all components against defects in material and workmanship for a period
of one year.

All parts, with the exception of fuses, are warranted for one year after installation date of cabinet.

If any parts, except fuses, become defective during the first year after installation date, Frymaster will
also pay straight-time labor costs to replace the part, plus up to 100 miles/160 km of travel (50
miles/80 km each way).

Parts Return

All defective in-warranty parts must be returned to a Frymaster Factory Authorized Service Center
within 60 days for credit. After 60 days, no credit will be allowed.

Warranty Exclusions

This warranty does not cover equipment that has been damaged due to misuse, abuse, alteration, or
accident such as:

• Improper or unauthorized repair;

• Failure to follow proper installation instructions and/or scheduled maintenance procedures as pre-

• Improper maintenance;

• Damage in shipment;

• Abnormal use;

• Removal, alteration, or obliteration of the rating plate.

This warranty also does not cover:

• Transportation or travel over 100 miles/160 km (50 miles/80 km each way), or travel time over

• Overtime or holiday charges;

• Consequential damages (the cost of repairing or replacing other property that is damaged), loss of

There are no implied warranties of merchantability or fitness for any particular use or purpose. For
international warranty, the above paragraphs apply, except that the customer is responsible for freight and
duty charges.

scribed in the manual shipped with the unit;

two-hours;

time, profits, use or any other incidental damages of any kind.

i

xx

SinBaD

SinBaD

McDonald’s

SinBaDSinBaD

SINGLE BASKET DISPENSER

CHAPTER 1: TROUBLESHOOTING

1.1 Functional Description

When the unit is plugged into an electrical outlet, line voltage is supplied to the transformer. Placing the
ON/OFF switch in the ON position supplies 24VAC to the motor interface board. The motor interface board
supplies 12VDC to the controller and 24VDC to the dispense motor and drum motor. The drum motor will
activate briefly as the computer in the controller “wakes up,” then motor logic circuits in the controller will
turn it back off. If closed, the dispensing chute door will open and remain open.

When the ON/OFF switch is placed in the ON position, the controller automatically enters the STANDBY
mode. When in the STANDBY mode, the batch weight selector switch circuits are disabled and the CLEAN
and PROGRAM circuits are enabled. No indicator LEDs are illuminated when the unit is in the STANDBY
mode.

Pressing the RUN switch places the controller in the RUN mode and causes the RUN mode indicator above
the switch to illuminate. Every time the unit is placed in the RUN mode, the controller will perform an
initialization process to “zero” the load cell. The dispensing chute door will open and remain open
throughout the process to ensure accuracy. When in the RUN mode, the batch weight selector switch circuits
are enabled and the CLEAN and PROGRAM circuits are disabled.

The load cell is an aluminum bar that acts as a bridge resistor. One end of the load cell is fixed. The load cell
arms, dispensing chute, and dispense motor are attached to the opposite end. Their weight causes a slight
distortion of the bar, which changes the bar’s resistance.

During the zeroing process, circuitry in the controller measures the resistance associated with the weight of
the empty dispensing chute, the dispense motor, and the load cell arms. It compares this to a factory­programmed resistance range and, if within the range, records this as the “zero” value. If the resistance is
outside of tolerance, the unit goes into a zero failure mode, signified by blinking of the RUN mode indicator
and the PROGRAM mode indicator.

During programming of the batch selector switches, the controller measures the difference between the
previously determined “zero” resistance and the resistance associated with the new weight. It records the
differential so that a batch weight always corresponds to the “zero” resistance plus the differential resistance,
not a specific resistance value. This avoids erratic batches caused by fluctuations in the “zero” weight.

When a batch weight selector is pressed, the controller activates the drum motor to transfer fries to the
dispensing chute. When the fries enter the chute, their weight further distorts the load cell, causing a change
in resistance. When the resistance is equal to the “zero” resistance plus the resistance differential associated
with the batch weight selector pressed, the controller signals the drum motor to stop.

A proximity sensor at the rear of the dispensing well senses when a basket has been inserted into the well. It
signals the controller, which in turn activates the dispense motor to dump the fries. When the door reaches
the full open position, a flag on the dispense motor shaft is detected by a Hall effect sensor that signals the
controller. The controller in turn reverses the current to the motor, closing the door. When the door reaches
the closed position, another Hall effect sensor detects the flag on the motor shaft and signals the controller.
The controller reduces power to the dispense motor to approximately 1VDC, causing the motor to hold the
door closed. A built-in 1½-second delay allows the load cell to stabilize before the controller reactivates the

1-1

drum motor to reload the dispensing chute. If a basket has been pre-positioned beneath the dispensing chute,
the unit will dispense the batch as soon as the load cell is satisfied and begin loading another batch. The
second batch will be held until the first batch is removed and a new basket is inserted. The process continues
until the unit is placed in the STANDBY mode or the ON/OFF switch is placed in the OFF position.

1.2 Troubleshooting and Problem Isolation

This section is intended to provide technicians with a general knowledge of the broad problem categories
associated with this equipment, and the probable causes of each.

Problems you are likely to encounter can be grouped into three categories:

a. Failures to “zero”
b. Erratic or inaccurate batch weights
c. Failures to function correctly

A series of troubleshooting guides is also included at the end of the chapter to assist in identifying some of
the more common problems.

1.2.1 Failures to “Zero”

As discussed in Section 1.1, the unit determines batch weights by comparing the load cell resistance to a pre­recorded resistance value equal to the empty or “zero” resistance value plus a resistance differential value
corresponding to a particular batch weight. When the load cell resistance is equal to the “zero” resistance
plus the resistance differential, the load cell is “satisfied” and the drum motor is stopped. Although each load
cell is theoretically identical, in actuality any given cell may have a slightly different resistance from any
other cell. Consequently, the cell must be “zeroed” to determine and record its actual resistance in order to
ensure accurate batch weights. The unit must be “zeroed” with the dispense chute in place, and no part of the
dispense chute may be in contact with the cabinet.

The load cell itself is basically an aluminum bar. When
not under stress, it has a particular resistance. When the
bar is vertically distorted by applying weight to one end,

The Load Cell Assembly

Load Cell

the resistance changes. Also, if the bar contacts any
other component, such as the end of the dispense motor
shaft, its resistance will be changed, forcing it outside
the acceptable range. Circuitry within the controller
measures the load cell resistance and compares this to a
factory-programmed (and very narrow) range. As long
as the load cell resistance falls within this range, the unit

Load Cell Brace

will “zero.”

Other than the load cell or an associated component being in contact with something it shouldn’t, there are
only three probable causes for failing to “zero.” The first is a malfunctioning controller. If the controller
cannot measure load cell resistance or loses the programmed resistance range, it cannot “zero.” The
recommended method of checking the controller is to use a load cell simulator (P/N 826-5658). If the unit
fails to zero with the simulator substituted for the load cell, the controller has probably failed. An alternate
method is to substitute a controller known to be good for the suspect controller. It is not necessary to install a
controller to test it. Simply plug the cabling into the new controller. If the unit “zeroes,” the controller in the
unit has failed and should be replaced with the new one. The next probable cause is a failed load cell.
Failure may be caused by bending of the cell or by damage to the cabling. Because the resistance range is
narrow, it is usually impossible to see the damage, so the appearance of the load cell is not a good indicator

1-2

of load cell failure, although an obviously damaged cell is immediately suspect. The recommended method
for diagnosing a failed load cell is to use the simulator mentioned earlier. If the unit zeroes with a simulator
substituted for the load cell, the load cell has probably failed. If the controller and load cell test OK, the third
(and least likely) probable cause is a failure of the cable between the load cell and the computer. NOTE: If
the unit “zeroes” sometimes but fails at others, check for a loose connection at the controller.

In any of the situations, the only solution is to replace the failed component, but before doing that verify that

a. The load cell brace is not touching the end of the dispense motor shaft. (Do this by trying to insert a

piece of paper between the two. If it can be inserted without drag, it’s okay.)

b. No part of the dispense chute is touching the cabinet.

1.2.2 Erratic or Inaccurate Batch Weights

The probable cause of erratic or inaccurate batch weights is bumping or jarring of the unit while the drum
motor is running.

The unit should be positioned in an area where it is not likely to be bumped or jarred during operation. If
erratic or inaccurate batch weights occur at random intervals, it is likely that the unit is being bumped or
jarred by workers. The only solutions in this case are to move the unit or better educate employees about the
effects of bumping the unit during operation.

If the erratic or inaccurate batch weights occur at specific times, or if the problem comes and goes, there may
be a source of unusual vibration. Two things to consider are facility location (e.g., is the store close to a
railroad track or a highway where trains or heavy trucks pass on a regular schedule) and unit location (e.g., is
it next to a heavy door that slams shut), etc. In the case of facility location not much can be done, although it
may be possible to dampen the vibrations by placing the unit on a rubber pad. In the case of unit location,
consider an alternate location for the unit. Avoid moving the unit long distances without the load cell shim in
place. Excessive jarring of the unit in movement may damage the load cell.

If erratic or inaccurate batch weights occur consistently, it is likely that one or more of the batch weight
selectors may have been improperly programmed. Verify that the selectors have been properly programmed
in accordance with the instructions in Appendix A.

1.2.3 Failures to Function and Improper Functioning

The probable causes of this category of problem are improper connections and failed components. If you
have not already done so, you should read Section 1.1 (the system theory of operation) before continuing
with this section.

The paragraphs that follow identify the general types of failures that may be encountered and the possible
causes of each. Troubleshooting Guides at the end of the chapter provide step-by-step problem-isolation
procedures.

Failure of the unit to initialize when ON/OFF switch is placed in ON position can be caused by failure of a
component in the input power circuit or failure of the controller. When the ON/OFF switch is placed in the
ON position the two error conditions that may be encountered are that the drum motor does not activate at all
or it runs continuously.

Normally when the ON/OFF switch is placed in the ON position, the drum motor briefly activates (approx­imately 2 seconds) then stops. If the drum motor runs continuously as soon as the ON/OFF switch is placed
in the ON position, there are three probable causes. The first is that 12VDC is not getting to the controller

1-3

from the motor interface board. The second is that the controller has failed. The third is that controller
signals are not reaching the motor drive circuits.

If the drum motor does not activate at all, the probable cause is failure of a component in the input power
circuit.

Failures of the dispense chute door to open or close are caused by problems with the Hall effect sensors, the
proximity sensor, the dispense motor, the motor interface board, or the controller. The primary indication of
a problem involving the “closed” Hall effect sensor (J8 on the controller) is the partial closing of the door
following the “zero” routine or the removal and replacement of a basket during normal operation.

A failed “open” Hall effect sensor (J8 on the controller) is indicated by the normal “zeroing” of the unit and
loading of the dispense chute, but failure of the door to open to dispense the fries. A failed proximity sensor
will give the same indication, so care must be taken to differentiate between the two.

If the Hall effect sensors have been ruled out as the cause of the failure to function, the most likely cause is a
motor-related problem.

Failures of the drum motor to start or stop are caused by problems in the controller, load cell, motor inter­face board, or drum motor and the associated wiring. If the motor fails to stop, the problem is not with the
motor. It may be with the controller, the load cell, or the motor interface board.

1.3 Troubleshooting Guides

The Troubleshooting Guides in the following pages provide a systematic method for isolating specific prob­lems and the action(s) to take to correct them. When using the guides to isolate the cause of a particular
problem, begin with the first probable cause and work down. Also, don’t forget the Operator Troubleshoot­ing Guides found in the Operator’s Manual. Most problems likely to be encountered are covered in these
two sets. However, don’t hesitate to call the
24-FRYER (1-800-243-7937) if you need assistance in solving a particular problem.

Frymaster

Technical Services Department at 1-800-

1-4

Problem Probable Causes Corrective Action

NO POWER WITH

UNIT VERIFIED TO BE

PLUGGED IN AND

CIRCUIT BREAKER

VERIFIED TO BE ON.

A. Failed power cord.

Test: Check for line voltage on the
line side of the line filter. If not pres­ent, the power cord has failed.

B. Failed line filter.

Test: Check for line voltage on the
line side of the filter and on the load
side. If line voltage is present on the
line side but not the load side, the fil­ter has failed.

C. Failed ON/OFF switch.

Test: Check for line voltage on the
load side of the line filter and on the
transformer brown and blue wires. If
line voltage is present on the load side
of the filter but not on the transformer
brown and blue wires, the switch has
failed.

D. Failed transformer.

Test: Check for line voltage on the
transformer brown and blue wires
and 24VAC on the black and orange
wires and 12VAC on the black and
yellow wires. If line voltage is pres­ent on the transformer brown and blue
wires, and either of the other two
voltages is incorrect, the transformer
has failed.

E. Failed motor interface board.

A. Replace the power cord.

B. Replace the line filter.

C. Replace the ON/OFF switch.

D. Replace the transformer.

E. Replace the motor interface board.

Test: Check for 12VDC on connector
J3 of the board. If voltage is incor­rect, the board has failed.

F. Failed 12VDC power cable.

Test: Check for 12VDC on connector
J3 of the motor interface board. If
voltage is correct, the 12VDC power
cable has failed.

1-5

F. Replace the 12VDC power cable.

Problem Probable Causes Corrective Action

f

A. Failed controller.

A. Replace the controller.

UNIT WILL NOT

ZERO.

Test 1: If a load cell simulator is
available, disconnect the load cell

from the controller and connect the
simulator. Turn unit off then back on
using the ON/OFF switch. Press the
RUN switch. If the unit does not
zero, the controller has failed.

Test 2: If a load cell simulator is not
available, turn unit off them back on

using the ON/OFF switch. Press the
RUN switch and look for the follow­ing conditions:

1. Drum motor activates briefly,

then stops.

2. Indicators in RUN switch and

PROGRAM switch do not flash.
If both conditions are true, the con­troller is suspect.

B. Failed load cell.

Test 1: If a load cell simulator is
available, disconnect the load cell

from the controller and connect the
simulator. Turn unit off then back on
using the ON/OFF switch. Press the
RUN switch. If the unit zeroes, the
load cell is suspect.

NOTE: Before installing a new
controller, plug the cabling into the
new controller, turn the unit off
then back on using the ON/OFF
switch, and press the RUN switch.
If the unit zeroes, the diagnosis is
confirmed and the replacement
computer can then be installed. If
the unit still does not zero, the
problem is not with the controller.

B. Replace the load cell.

NOTE: Before replacing a load
cell, verify that a piece of paper can
be inserted between the dispense
motor shaft and the load cell brace.
If not, the load cell is out of align­ment. Refer to Section 2.2.2 for
corrective action.

Test 2: If a load cell simulator is not
available, turn unit off then back on

using the ON/OFF switch. Press the
RUN switch and look for the follow­ing conditions:

1. Drum motor activates briefly,

then stops.

2. Indicators in RUN switch and

PROGRAM switch flash.
If both conditions are true, and a
piece of paper can be inserted be­tween the dispense motor shaft and
the load cell brace, the load cell has
failed.

C. Loose or broken load cell cable.

Test: Check connection to verify that
the cable is securely plugged into
connector J3 on the controller.

1-6

C. If the cable is loose, reconnect it. I

the cable is broken, replace the load
cell.

Problem Probable Causes Corrective Action

BATCH WEIGHTS

ARE INCONSISTENT

OR INACCURATE.

A. Unit is located in an area where it is

being bumped or jarred during opera-

tion.

B. Unit is in an area subject to unusual

environmental vibration, such as ad-

jacent to a railroad track or near a

A. Relocate unit to an area where it is

less likely to be bumped or jarred
during operation. Ensure unit is
not in contact with adjacent walls.

B. The effect of environmental vibra-

tions may be lessened by placing
the unit on a thick mat.

major highway.
C. Batch weight selectors are incorrectly

programmed.
A. 12VDC is not getting to the

controller.

C. Reprogram batch weights in accor-

dance with Appendix A.

D. Failed Test 1 – Replace the motor

interface board.

DRUM MOTOR RUNS

CONTINUOUSLY AS

SOON AS THE ON/OFF

SWITCH IS PLACED

IN THE ON POSITION.

DRUM MOTOR DOES

NOT ACTIVATE AT

ALL.

Test 1: Check for 12VDC at motor

interface board connector J3. If

voltage is not present, probable cause

is failure of the motor interface board.

If voltage is present, perform Test 2.

Test 2: Check for 12VDC at the

controller end of the 12VDC cable. If

voltage is present on connector J3 but

not at controller end of the cable, the

cable has failed. If voltage is present

at the controller end of the cable the

controller is suspect. Go to B.
B. Failed controller.

Test: Substitute new controller for

suspect controller. Turn unit off and

back on using the ON/OFF switch.

Press RUN switch. If unit functions

correctly, the controller has failed.
A. Failed drum motor.

Test: With loading chute empty, turn

the unit off then back on using the

ON/OFF switch. Press the RUN–

switch. Check for 24VDC at motor

end of drum motor cable. If voltage is

present, the drum motor has failed.
B. Failed motor interface board.

Failed Test 2 – Replace the 12VDC
power cable.

E. Replace the controller.

A. Replace the drum motor.

B. Replace the motor interface board.

Test: Check for 24VAC at connector

J1 of the motor interface board. If

voltage is present and a motor known

to be good does not activate when

RUN switch is pressed, the motor in-

terface board may have failed.

1-7

NOTE: Before replacing the
motor interface board, check the
continuity of the drum motor cable
to be sure it is not the problem.

Problem Probable Causes Corrective Action

A. Failed dispense motor.

A. Replace the dispense motor.

Test: Turn the unit off then back on
using the ON/OFF switch, then press
the RUN switch. Check the DOOR
LED for a bright red glow, and for
24-35VDC at the motor end of the
dispense motor cable. If both condi­tions are true, the dispense motor has
failed.

B. Failed dispense motor cable.

B. Replace the dispense motor cable.

Test: Check for 24-35VDC on con­nector J5 of the motor interface
board. If voltage is not present, the
dispense motor cable has failed.

C. Failed motor interface board.

C. Replace the motor interface board.

Test: Check for 24-35VDC on con­nector J5 of the motor interface
board. If voltage is present, the motor
interface board has failed.

DISPENSE CHUTE

DOOR DOES NOT

OPEN.

D. Failed proximity sensor.

Test: Place a basket into the dis­pensing well and check for illumina-

D. Replace the proximity sensor.

tion of the proximity sensor. If the
sensor is not illuminated, the sensor
has failed.

E. Failed/misaligned upper Hall effect

sensor.

E. Realign or replace the upper Hall

effect sensor as necessary.

Test: If the unit zeroes and loads the
dispense chute normally, remove the
hopper and basket from the unit and
empty the dispense chute. Replace
the basket. If the drum motor does
not start, the upper Hall effect sensor
is out of alignment or has failed.

F. Failed controller.

Test: Disconnect the cables from the
suspect controller and connect them
to a controller known to be good.
Turn the unit off then back on using
the ON/OFF switch, the press the
RUN switch. If the unit operates cor­rectly, the controller has failed.

1-8

F. Replace the controller.

Problem Probable Causes Corrective Action

A. Failed dispense motor.

A. Replace the dispense motor.

Test: Turn the unit off then back on

using the ON/OFF switch, then press

the RUN switch. After the unit ze-

roes, check for 24-35VDC on the

motor end of the dispense motor ca-

ble. If voltage is present, the dispense

motor has failed.
B. Failed motor interface board or

dispense motor cable.

B. Replace the motor interface board

or dispense motor cable as re-

quired.
Test: Turn the unit off then back on
using the ON/OFF switch, then press
the RUN switch. After the unit ze­roes, check for 24-35VDC on J5 of
the motor interface board. If voltage

DISPENSE CHUTE

DOOR DOES NOT

CLOSE.

is not present, the motor interface
board has failed. If voltage is present,
the dispense motor cable has failed.

C. Failed/misaligned lower Hall effect

sensor.

C. Realign or replace the lower Hall

effect sensor as necessary.

Test: If the unit zeroes and the door
partially closes, the lower Hall effect
sensor is out of alignment or has
failed.

D. Failed controller.

Test: Disconnect the cables from the
suspect controller and connect them
to a controller known to be good.
Turn the unit off then back on using
the ON/OFF switch, the press the
RUN switch. If the unit operates cor­rectly, the controller has failed.

D. Replace the controller.

1-9

1.4 Wiring Diagrams

1-10

SENSOR

HALL EFFECT

DOOR CLOSED

12345

COMPUTER

RR/G

NOTE: PROXIMITY SENSOR AND HALL

SWITCHES FOR SIMPLICITY. LOAD CELL

EFFECT SENSORS SHOWN AS FUNCTIONAL

CIRCUITRY NOT ILLUSTRATED FOR SAME REASON.

DISPENSE

1

6

J8

123

24V

LEDS

SENSOR

DOOR OPEN

HALL EFFECT

SENSOR

PROXIMITY

R

J5

RED

DRUM

BOARD

TRACINGS

1

AND

MOTOR

FROM J2

24VDC

SOURCE

2

J4

TO J4

TO J5

MOTOR

2

J5

R/G

FROM J2

24VDC

LOAD CELL

GREEN

WHITE

BLACK

1

234

5

1234

J3

1

234

5

PROCESSING CIRCUITS

AND TRACINGS

12VDC

SIMPLIFIED WIRING DIAGRAM

J2

MOTOR INTERFACE BOARD

311

LINE FILTER

LINE VOLTAGE

24V

J1

12VDC

1

2

J3

FUSE

(CE MODELS ONLY)

J2

J1

1

2

1-11

805-1020A

1-12

SinBaD

SinBaD

McDonald’s

SinBaDSinBaD

SINGLE BASKET DISPENSER

CHAPTER 2: COMPONENT REPLACEMENT

2.1 Accessing Components

The unit’s back panel must be removed to access all electronic components except the drum motor. The
panel is held in place by two hex-head screws located along the bottom edge. A separate access panel must
be removed to gain access to the drum motor. It is held in place with two hex-head screws. In order to ac­cess the ON/OFF switch and controller, the right cabinet top must also be removed. It is secured by two pan­head machine screws and Keps nuts at the left rear corner (as viewed from the rear of the unit) and one hex­head screw at the right rear corner. The front of the panel is held in place by a pair of tabs that fit into slots
cut into the front of the cabinet. When the retaining screws have been removed, lift up on the rear and move
the cabinet top toward the front to disengage the tabs.

2.2 Replacing Components

2.2.1 Replacing the Controller

1. Disconnect the unit from the electrical power source.

2. Disconnect all cables from the jacks on the back of the controller. If the cables are not marked indicating

their jacks, mark the cables before disconnecting them.

3. The controller is held in place by four Keps nuts. Remove the nuts and pull the controller straight rear-

ward off the mounting studs.

4. Reverse steps 1-3 to install new controller.

2.2.2 Replacing the Load Cell and Associated Components

1. Disconnect the unit from the electrical power source.

2. Disconnect the load cell cable from the back of the

controller (see photo below).

Load Cell Cable

These components
shown separated from
cabinet to reveal load
cell arms.

Load Cell Arms

Dispense

Chute

3. Remove the dispensing chute by lifting it up from the

load cell arms and carefully sliding it toward you
(see illustration at right).

2-1

4. Remove the two bolts securing the load cell arms to

the load cell (see illustration at right). Carefully
lower the load cell arms/dispense motor assembly to
the bottom of the dispense chamber.

5. Remove the two bolts securing the load cell/load cell

brace assembly to the load cell saddle (see illustra­tion below) and remove the load cell and load cell
brace.

Load cell saddle

Remove

these

bolts

Remove

these

bolts

6. Reattach the replacement load cell and the load cell brace to the load cell saddle and securely tighten the

bolts. Verify that the gap between the load cell and stop screw in the load cell brace is approximately
.015 inch ± .005 inch (.4mm ± .13mm).

7. Reverse steps 1 through 4 to complete the procedure.

2.2.3 Replacing the Dispense Motor

1. Disconnect the unit from the electrical power source and remove the back panel to access wiring.

2. Disconnect the dispense motor wiring harness and Hall effect sensor cable (see photo below).

Hall Effect Sensor Cable

Dispense Motor Wiring Harness

2-2

3. Remove the basket alignment rack from the dispensing

well. Remove the two bolts securing the dispense motor to
the load cell arms (see illustration at right). Be ready to
support the approximate 6-pound/3-kilogram weight of the
dispense motor assembly when the bolts are removed.

4. Carefully pull the dispense motor assembly out through the

opening in the cabinet.

Remove

these

bolts

5. Remove the setscrew securing the dispense door arm to the

motor shaft and slip the arm from the shaft, being careful
not to lose the square key. Remove the four Keps nuts from
the screws securing the motor assembly to the dispense
motor bracket.

Dispense Door Arm

Inner Motor Stop

Mounting Bracket

Tang

Outer Motor Stop

Detail of Hall Effect Sensor Assembly and

Brackets (sensor wiring omitted for clarity)

Bracket with offset

goes on last.

Square Key

Shim

Sensor Flag

Remove

motor through

this opening

Ground Wire

Leave a 1/4-inch (6.25mm) gap between

edge of Dispense Arm and Inner Motor Stop.

6. Loosen the setscrew securing the sensor flag to the motor shaft and slide the flag and shim (spacer) from

the shaft.

7. Slip the Hall effect sensor brackets off the mounting screws and separate the motor and mounting

bracket.

8. Assemble the replacement motor to the bracket then replace the Hall effect sensor brackets, installing the

bracket with offset last (see illustration in step 5). Replace and tighten the four Keps nuts, torquing to
5-10 inches/pound. NOTE: Ensure the ground wire is reattached to the upper right hand mounting
screw.

9. Insert the square key into the groove in the long motor shaft, align the slot in the dispense arm hub with

the square key, and slip the arm onto the shaft with the hub on the outside (see illustration in step 5).
NOTE: The door must be positioned between the motor stops (rotate the shaft, if necessary) and there
must be at least

5

-inch (8 mm) clearance between the door and the motor. Torque the setscrew to 20-25

16

⁄

inches/pound.

2-3

10. Slip the shim (spacer) onto the short motor shaft, followed by the sensor flag (with the hub facing the

shim). Rotate the dispense arm so that the tang is pointed up (see illustration in step 5) and there is a gap
of approximately ¼-inch (6.25 mm) between the edge and the inner motor stop.

11. Remove any slack in the motor shaft by placing the arm end on a work surface and gently pressing down

on the motor. At the same time, rotate the sensor flag so that it is positioned between the faces of the up­per (left) Hall effect sensor. Verify that there is a gap of approximately ¼-inch (6.25 mm) between the
arm and the inner motor stop, then tighten the setscrew, torquing to 12 inches/pound.

12. Reinstall the dispense motor assembly by reversing steps 1 through 4.

2.2.4 Replacing the Drum Motor

1. Disconnect the unit from the electrical power source.

2. Disconnect the drum motor wiring from

the drum motor cable (see illustration at
right). NOTE: The drum motor cable
plugs into the motor interface board and
the motor wiring plugs into it. It is not
necessary to disconnect the drum motor
cable from the motor interface board.

Remove

these

nuts

3. Remove the four Keps nuts (see

illustration at right) that secure the drum
motor to the drum motor bracket and pull
the motor straight back off the mounting
screws.

4. Grasp the motor shaft with a pair of

locking pliers and unscrew the rotator arm
(“bullet”) from the motor shaft and
transfer it to the new motor.

5. Slip the new motor over the four

Disconnect

motor wiring

here

mounting screws, being careful not to
dislodge the screws. Replace and tighten
the Keps nuts.

6. Reverse steps 1 and 2 to complete the procedure.

2.2.5 Replacing the Transformer or Line Filter

1. Disconnect the unit from the electrical power source.

2. Holding the new component next to the component being replaced, disconnect each wire from the old

component and connect it to the new component, one at a time.

3. Remove the screws securing the old component to the mounting bracket, remove the old component, and

install the new component.

4. Reconnect the unit to the electrical power source.

2-4

2.2.6 Replacing the Proximity Sensor

1. Disconnect the unit from the electrical power source.

2. Unplug the proximity sensor from the controller.

3. Unscrew the failed sensor from the block. Thread the stop nut on the replacement sensor back toward the

cord-end until approximately ½ inch (12.5mm) of threads remain. Carefully screw the replacement sen­sor into the Teflon block until it is finger tight. Tighten the stop nut against cabinet.

4. Plug the sensor cable into jack J5 on the controller and reconnect the unit to the electrical power source.

2.2.7 Replacing the Motor Interface Board

1. Disconnect the unit from the electrical power source.

2. Holding the new interface board next to the one being replaced, disconnect each cable from the failed

interface board and connect it to the new board, one at a time.

3. Remove the four Keps nuts securing the old board to its mounting and slip it off the mounting studs, be-

ing careful not to dislodge the spacers behind the board. Slip the new board onto the mounting studs and
replace the Keps nuts.

4. Reconnect the unit to the electrical power source.

2-5

xx

McDonald’s

ACCESSORIES

NOTES:

Item 13 may be
attached to either side of
Item 14.

SinBaD

SinBaD

SinBaDSinBaD

SINGLE BASKET DISPENSERS

CHAPTER 3: PARTS LIST

11

18

6

Item 16 may be mounted
on either side of cabinet to
correspond to location of
Item 13.

14

4

8

13

1

57

10

16

2

17

15

3

ITEM PART # COMPONENT

1 900-2949 Shim, Caster
2 803-0276 Rack, Wire Basket Positioning
3 810-2220 Leg
4 809-0132 Screw, ¼-20 x ¾-inch Slotted Pan Head
5 826-1368 Nut, ¼-20 Serrated Flange (Pkg. of 10)
6 809-0747 Thumbscrew, ¼-30 x ⅜-inch
7 810-0378 Caster, 5-inch Wheel Rigid
8 810-2231 Block, Threaded

9 812-1496SP Hopper
10 816-0378 Drum
11 816-0491 Lid, Hopper
12 816-0568 Glass, Sight
13 823-3683 Arm, Basket Rack
14 823-3685 Rack, Basket
15 824-0893 Pan, Crumb
16 824-1022 Receiver, SinBaD Bracket
17 824-1023 Tray, Basket Rack
18 910-7920 Handle, Hopper Lid
19 910-8688 Deflector

3-1

19

12

9

CABINETRY

4

1

28

5

14

21

2

13 22

19

121518

17

3

911

148

25

7

27

30

16 11

13

23

14

9

29

9

24

20

266

10

3-2

ITEM PART # COMPONENT

1 106-0643 Cover Assembly, SinBaD Drum Motor

2 106-0777 Side, Left Cabinet

3 106-1438 Side, Right Cabinet

4 806-9228 Cover, Right Cabinet Top

5 806-9235 Cover, Left Cabinet Top

6 806-9782 Base Assembly

7 807-1083 Bushing, Nylon (fits 2-inch hole)

8 826-1680 Clamp, Plastic Wire (Pkg. of 8)

9 826-1389 Screw, ¼-20 x ¾-inch Hex Head (Pkg. of 10)
10 809-0189 Washer, ¼-inch SAE Flat
11 809-0191 Washer, ¼-inch Lock
12 809-0194 Washer, 5⁄16-inch SAE Flat
13 809-0250 Nut, 6-32 Keps Hex
14 809-0434 Screw, #10 x ⅜-inch Hex Washer Head
15 809-0783 Nut, 5⁄16-18 Hex Nylon Lock
16 810-0356 Caster w/o Brake, 5-inch (for 3-inch caster, use 810-2508)
17 810-0357 Caster w/Brake, 5-inch (for 3-inch caster, use 810-2509)
18 810-1644 Guide, Basket
19 823-2761 Panel, Cabinet Front
20 823-3191 Liner, Cabinet Bottom
21 823-3383 Liner, Cabinet Inner
22 824-0752 Cover, Dispense Motor
23 824-0771 Cover, SinBaD Load Cell
24 900-8208 Cover, Back
25 900-8211 Brace, Upper Back
26 900-8223 Brace, Lower Back Right
27 900-8224 Brace, Load Cell Vertical
28 900-8324 Panel, Motor Access
29 900-8352 Brace, Lower Back Left
30 900-9440 Support, Base

3-3

DISPENSE SYSTEM COMPONENTS

2

12

17

10

23

28

27

15

5

29

3

18

8

4

21

6

11

33

20

13

9

32

19

6

31

14

16

22

30

1

24

26

7

25

3-4

ITEM PART # COMPONENT

1 210-0810 Stop, Door Open Position

2 806-8969SP Switch Assembly, Position (Hall Effect Sensor)

3 806-9258 Load Cell Assembly

4 806-9271 Load Cell Arm Assembly

5 807-3004 Motor, 24VDC Dispense

6 826-1389 Screw, ¼-20 x ¾-inch Hex Head (Pkg. of 10)

7 809-0171 Thumbscrew, ¼-20 x 1⅜-inch

8 809-0191 Washer, ¼-inch Lock

9 809-0193 Washer, ¼-inch Nylon Flat
10 826-1366 Nut, 4-40 Keps Hex (Pkg. of 25)
11 809-0247 Nut, 8-32 Keps Hex
12 809-0434 Screw, #10 x ⅜-inch Hex Washer Head
13 809-0480 Setscrew, ¼-28 x 5⁄8-inch
14 809-0613 Screw, 8-32 x 2-inch Fillister Head
15 809-0649 Bolt, ¼-20 x 1½-inch
16 809-0674 Setscrew, 8-32 x ⅜-inch Cup Point Square Head
17 809-0675 Screw, 4-40 x ½-inch Slotted Pan Head
18 809-0737 Screw, ¼-20 x ¼-inch Slotted Round Head Cap
19 810-1391 Key, ⅛-inch x ¾-inch
20 810-1770 Brace, Load Cell
21 810-1771 Rod, ¼-inch x ⅜-inch Aluminum
22 816-0400 Door, Dispense Chute
23 823-2607 Flag, Door Position (Hall Effect Sensor Flag)
24 823-2670 Arm, Dispense Door
25 823-2717 Chute, Dispense
26 823-3412 Top, Dispense Chute
27 900-8169 Shim, Motor Shaft
28 900-8211 Brace, Upper Back
29 900-8233 Saddle, Load Cell
30 910-5855 Bracket, Dispense Motor
31 910-7950 Stop, Door Closed Position
32 910-8164 Bracket, Lower Position Switch (Lower Hall Effect Sensor Bracket)
33 910-8165 Bracket, Upper Position Switch (Upper Hall Effect Sensor Bracket)

* 826-1746 Tester, Load Cell

* Not illustrated.

3-5

DRUM MOTOR COMPONENTS

3

5

1

4

2

ITEM PART # COMPONENT

1 200-0953 Bracket, Drum Motor Mounting
2 807-3436 Motor, 24VDC Drum
3 809-0247 Nut, 8-32 Keps Hex
4 809-0613 Screw, 8-32 x 2-inch Fillister Head
5 810-1571 Arm, Drum Rotator (Bullet)

3-6

ELECTRONICS

7

1

16 17 19

21

8

189

1812

15

4

10

11

13

18

20

5

14

ITEM PART # COMPONENT

1 106-0242 Interface Board

2 106-0503 Cable Assembly, Proximity Sensor

3 806-8889 Cord, Power

4 806-8956 Cable, Transformer to Interface Board

5 806-8957 Cable, Computer/Interface Board 12VDC Power

6 106-1480 Computer Assembly

7 807-1083 Bushing, Nylon (fits 2-inch hole)

8 807-2734 Switch, ON/OFF 120V Rocker

9 807-2818 Filter, 120/250VAC Line
10 807-2912 Cable, Dispense Motor to Computer Terminal J5
11 807-2915 Cable, Drum Motor to Computer Terminal J4
12 807-2943 Transformer, 115-230VAC/24VAC
13 807-3056 Cable, Position Switch to Interface Board Terminal J8
14 807-3058 Cable, Computer/Interface Board Signal
15 807-3240 Strain Relief, Power Cord
16 809-0097 Screw, 6-32 x 1-inch Slotted Truss Head
17 809-0250 Nut, 6-32 Keps Hex
18 826-1371 Screw, #8 x ½-inch Hex Head Drill Point (Pkg. of 25)
19 810-0383 Spacer, Nylon
20 816-0566 Block, Proximity Sensor
21 900-8938 Bracket, Electronic Components Mounting

2

6

3

3-7

McDonald’s

Appendix A: Batch Weight Programming

SinBaD

SinBaD

SinBaDSinBaD

SINGLE BASKET DISPENSER

The Batch Weight Selectors in the McDonald’s
weights: 0.5 lb./.23 kg, 1.0 lb./.45 kg, and 1.5 lb./.68 kg. If necessary, they can be reprogrammed in the field
using the following procedure. NOTE: ONLY the previously listed weights should be programmed.
Programming other weights contravenes McDonald’s policy.

Programming the unit for weights less than .38 lb./.17 kg will result in erratic batch weights.

The PROGRAMMING mode can only be entered when the unit is in STANDBY mode. To enter the
STANDBY mode, press the RUN Switch
press the RUN Switch again.

1. Remove the hopper assembly from the unit. NOTE: If the hopper is not empty, refer to Section 3.1 of

the Operator’s Manual for instructions on emptying the hopper.

2. Press the PROGRAM Switch
switch will blink. Press BATCH WEIGHT Selector 1 four times. The indicator lights in each of the
selectors will light in sequence until all are lit, at which time the indicator in the PROGRAM Switch will
stop blinking and the indicator in the CLEAN Switch will blink.

NOTE: If you do not begin pressing Selector 1 within 5 seconds after entering the PROGRAMMING
mode, the unit will automatically return to the STANDBY mode. If you press a BATCH WEIGHT
selector other than 1, the unit will return to the STANDBY mode immediately after the selector is
pressed.

once to enter the PROGRAMMING mode. The indicator light in the

SinBaD

CAUTION

once. Verify that the indicator light in the Switch is out. If not,

are factory programmed with three standard batch

3. Press the CLEAN Switch
numbered selectors will blink, indicating that the system is “zeroing” itself and performing its self­calibration routine. This process takes about 20 seconds. When the process is complete, the dispensing
chute door will close and the indicator lights will go out.

4. Carefully place an object weighing ¼-pound (.11 kg) less than the desired batch weight on the dispensing
chute door and wait at least 5 seconds for the load cell to stabilize. For example, to program a batch
weight of 1 lb/.45 kg, use an object weighing ¾ lb/.34 kg.

5. Press one of the numbered switches to program the weight associated with that switch. The switch’s
indicator will light momentarily then go out, showing that the weight for that switch has been
successfully recorded.

6. Repeat steps 4 and 5 for each of the remaining numbered switches.

7. Press the PROGRAM Switch

8. Press the RUN Switch
dispensing chute door will open and remain open for about 20 seconds as the unit re-zeros itself.
Additionally, the lights in the batch weight selectors will sequentially flash during the self-zeroing
routine. When the door closes, replace and reload the hopper to return the unit to operation.

once. The dispensing chute door will open and the lights above the

once to exit the PROGRAMMING mode.

once to return to the RUN mode. The light in the switch will illuminate and the

A-1