Belshaw Adamatic Donut Robot Mark 6 User Manual

®

Donut Robot

Mark VI

Operator’s Manual

and

Technical Supplement

Belshaw Bros., Inc.
814 44th Street NW, Suite 103
Auburn, WA 98001 USA
Tel: [phone]
Fax: [phone]
Toll Free (US): 1-800-578-2547
E-mail: [e-mail]
www.belshaw.com

Donut Robot



Mark VI

Operator’s Manual

Belshaw Bros., Inc.

814 44th Street NW, Suite 103

Auburn, WA 98001 USA

Phone: + -1-206-322-5474  Fax: + -1-206-322-5425

E-mail: [e-mail]  http://www.belshaw.com

If you accept the machine from the shipping
company, you are, in effect, saying that the
machine is in good condition, and you must
pay for the machine. Belshaw cannot pay for

shipping damage, because the freight company
has accepted the machine from Belshaw in good
condition, and is responsible for its safe delivery.
For your protection, inspect the machine to see
that no parts are bent, scratched, or otherwise
damaged. If any damage has occurred in
shipping, file a freight claim with the shipping
company immediately.

IMPORTANT

Keep this manual for reference purposes.

EQUIPMENT RECORD

Please provide the information below when you correspond with us about your machine.
Purchased by _____________________________________________________________________
Installed by ______________________________________________________________________
Date of Installation ________________________________________________________________
Model number ___________________________________________________________________
Serial number

011108

MN-1032EN

Belshaw Bros., Inc.

814 44

th

Street NW, Suite 103

Auburn, WA 98001 USA

Phone: + -1-206-322-5474  Fax: + -1-206-322-5425

E-mail: [e-mail]  http://www.belshaw.com

Contents

1 Operation 1

Making Yeast-Raised Donuts 1
Making Cake Donuts 2

2 Cleaning 5

Daily 5
As Needed 6
Monthly 9

3 Maintenance 11

Lubricating 11
Taking Care of the Plunger, Hopper, and Cylinder 11

4 Donut-Making Helps 13

Tips on Making Quality Cake Donuts 13
Temperature Conversion 14
Ratios of Plunger Sizes to Donut Weights 14
Calculating Correct Water Temperature 14

5 Related Products 15

FT2-DW Feed Table 15
Roto Cooler 17
Icing Finishing Tree and Roto Cooler 22
Filter Flo Siphon 24

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Donut Robot Mark VI OM MN-1032EN iii

Preface

The Donut Robot Mark VI is designed to
automatically cut and fry cake donut products,
and to fry yeast-raised donut products. It is not
designed to cut or fry any other products.

The Mark VI uses electrical elements to heat
shortening in its kettle. In the European
Community, the machine is available with the
following electrical configurations:

 380 volts, 3 phase, 50 hertz
 415 volts, 3 phase, 50 hertz

The Donut Robot Mark VI produces only 71.5
dB(A) of equivalent continuous A-weighted
sound pressure at work stations. This has been
determined during a dry run of the machine,
using a Bruel & Kjaer sound level meter, type

2236.
The Mark VI is meant to be used on a flat,

stationary table or countertop. The operator must
work safely at all times and read this manual and
follow its instructions and warnings.

Study the instructions and warnings in this
manual carefully. A thorough understanding of
how to install, maintain, and safely operate the
Donut Robot Mark VI will prevent production
delays and injuries.

To use the Mark VI safely, heed the following
warnings and all other warnings that appear in
this manual:

 Make sure the machine is secured to the

work surface. Doing so will prevent the
machine from moving or falling, which
could cause serious injury.

 Never let water and hot shortening come

in contact with each other. Moisture
causes hot shortening to spatter, which
may cause serious burns.

 Do not overfill the kettle with

shortening. If shortening overflows the
kettle, it could cause serious burns or
could cause someone to slip on the floor
and be seriously injured.

 Hot shortening can cause serious burns.

Make sure that the system and the
shortening are cool before attempting
any adjustment, repair, disassembly, or
cleaning.

 To avoid electrocution or other injury,

unplug the machine before attempting
any adjustment, repair, disassembly, or
cleaning.

 To avoid damaging the machine, never

use force to assemble, disassemble,
operate, clean, or maintain it.

 Be careful never to get shortening,

water, or other materials on the floor. If
anything does get spilled on the floor,
mop it up immediately. Materials on the
floor can cause people to slip or fall,
resulting in serious injury or loss of life.

 To prevent unintentional startup and

possible fire, unplug the machine if there
is a local power outage. When the
power is restored, it is safe to plug the
machine in again.

 To avoid electrocution, make sure that

all electrical cords are not frayed or
cracked and that they do not pass
through any water or shortening.

 Make sure that all electrical cords are

routed so that no one will trip over them.

 Always turn the thermostat knob below

200F/93C before filtering shortening,

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iv MN-1032EN Donut Robot Mark VI OM

draining the fryer, or cleaning the fryer.
Draining shortening with the heating
element on may cause fire, serious
injury, or even death.

 Before attempting to remove the

conveyor assembly from the fryer,
always allow the shortening to cool and
drain the shortening out of the fryer. If
you do not, shortening may splash on
you and on the floor, creating a safety
hazard. If the shortening is hot, you may
suffer serious burns.

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Donut Robot Mark VI OM MN-1032EN v

1 Operation

Read each step completely before doing what it
tells you to do.

WARNING

Making Yeast-Raised
Donuts

1. Remove the hopper and plunger, the cutter
head, and the swing column, if they are
installed.

2. Pivot the splash guard down. (See Figure
1-1.)

3. When the shortening reaches the correct
frying temperature, it should just cover the
flight bars.

Shortening expands as it increases in
temperature. This means that unless the
shortening is at frying temperature when you
put it in the kettle, you should put it in
gradually. Let the shortening in the kettle
heat up before you add more.

Put shortening in the kettle using one of
these methods:

 Use the optional EZ Melt to melt

shortening and transfer it to the kettle.
See your EZ Melt manual.

 Pre-melt shortening in a pan on the stove

and carefully pour it into the kettle.

Air spaces can cause the shortening to

overheat and catch on fire.

4. Turn the heating element on by turning the
thermostat knob to the desired temperature.
Two pilot lights will come on. The one on
the top of the heater head indicates that the
heating element has been turned on (that the
thermostat is set above 200F/93C). The
one on the front of the heater head indicates
that the shortening has not yet reached the
desired temperature. This light will go out if
the high temperature limit control breaks the
circuit.

Note: If the high temperature limit control
does break the circuit, push the red reset
button on the back of the heater head.

5. Wait for the shortening to reach the desired
temperature. When it does, the light on the
front of the heater head will go out. DO
NOT run the conveyor until all the
shortening has melted.

6. Install your Feed Table and load proof cloths
on it. Refer to Section 5, “Related
Products,” for complete installation and
operation instructions for the Feed Table.

7. Choose the appropriate fry time for your

WARNING

Hot shortening causes severe burns.

 Put solid shortening into the kettle,

packing it tightly around the elements
and bulbs.

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Donut Robot Mark VI OM MN-1032EN 1

product using the fry time control knob on
the heater head.

8. Using the switch on the heater head, select
one cut per pocket. Although the machine
will not be cutting donuts, it needs to be at
this setting when frying yeast-raised
products.

9. Turn on the conveyor drive using the power
switch on the heater head.

Note: If the conveyor becomes jammed, a
warning buzzer will sound about a minute
later and stop when the conveyor is turned
off. The conveyor drive is impedance­protected so it will not burn out due to
jamming.

WARNING

If the conveyor becomes jammed: 1. Turn

off the conveyor drive and the heater. 2.

Allow the system to cool down. HOT

SHORTENING IS DANGEROUS.

3. Determine the cause of the jamming.

4. Clear it. 5. Restart the system.

10. Continue adding shortening to the kettle to
maintain the proper shortening level (see
step 1). There are two ways to do this:

 Use the optional EZ Melt, transfer more

shortening from it. See the EZ Melt
manual.

 Pre-melt some shortening in a pan on the

stove and carefully pour it into the kettle.

11. Continue loading proof cloths onto the Feed
Table as needed.

Making Cake Donuts

1. Pivot the splash guard toward the outfeed
end of the fryer. (See Figure 1-2.)

2. Install the swing column, connect the swing
connecting rod, install the cutter head, and
install the hopper and plunger, if you have
not done so already.

3. When the shortening reaches the correct
frying temperature, it should just cover the
flight bars.

Shortening expands as it increases in
temperature. This means that unless the
shortening is at frying temperature when you
put it in the kettle, you should put it in
gradually. Let the shortening in the kettle
heat up before you add more.

Put shortening in the kettle using one of
these methods:

 Use the optional EZ Melt to melt

shortening and transfer it to the kettle.
See your EZ Melt manual.

 Pre-melt shortening in a pan on the stove

and carefully pour it into the kettle.

WARNING

Hot shortening causes severe burns.

 Put solid shortening into the kettle,

packing it tightly around the elements
and bulbs.

WARNING

Air spaces can cause the shortening to

overheat and catch on fire.

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2 MN-1032EN Donut Robot Mark VI OM

4. Turn the heating element on by turning the
thermostat knob to the desired temperature.
Two pilot lights will come on. The one on
top of the heater head indicates that the
heating element has been turned on (that the
thermostat is set above 200F/93C). The
one on the front of the heater head indicates
that the shortening has not yet reached the
desired temperature. This light will go out if
the high temperature limit control breaks the
circuit.

Note: If the high temperature limit control
does break the circuit, push the red reset
button on the back of the heater head.

5. Wait for the shortening to reach the desired
temperature. When it does, the pilot on the
front of the heater head will go out. DO
NOT run the conveyor until all the
shortening has melted.

6. Disengage the swing connecting rod from
the swing column throw arm and swing the
hopper away from over the fryer.

7. Adjust the size selector dial on the cutter
head’s crankshaft assembly. This dial
regulates the donut weight. The higher the
setting, the larger the donuts will be. Adjust
the dial setting as follows:

a. Unscrew the dial lock nut 1/2 turn.
b. Turn the dial to the desired position, as

indicated by the marks on the crank
plate.

c. Tighten the dial in place with the lock

nut. Tighten it using your fingers only.

Note: Holding down the prime switch

causes the cutter to run continuously
without the normal delay between cuts.

c. Put the dough in the bowl back in the

hopper.

9. Return the hopper into position over the
fryer and reconnect the swing connecting
rod to the swing column throw arm.

10. Choose the appropriate fry time for your
product using the fry time control knob on
the heater head.

11. Using the switch on the heater head, select
the number of donutsone or twoyou want
to cut during each swing cycle of the hopper.

12. Turn on the cutter using the power switch on
the cutter head.

13. Turn on the conveyor drive using the power
switch on the heater head.

Note: If the conveyor becomes jammed, a
warning buzzer will sound about a minute
later and stop when the conveyor is turned
off. The conveyor drive is impedance­protected so it will not burn out due to
jamming.

WARNING

If the conveyor becomes jammed: 1. Turn

off the conveyor drive and the heater. 2.

Allow the system to cool down. HOT

SHORTENING IS DANGEROUS.

3. Determine the cause of the jamming.

4. Clear it. 5. Restart the system.

8. Put dough into the hopper. Prime the hopper
to expel any air that may be trapped in the
bottom of it. To prime the hopper:

a. Hold a mixing bowl under the cutter.
b. Hold down the prime switch on the

cutter head and run the cutter until it has
dropped two or three donuts into the
bowl.

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Donut Robot Mark VI OM MN-1032EN 3

14. Continue adding shortening to the kettle to
maintain the proper shortening level (see
step 3). There are two ways to do this:

 If you are using the optional EZ Melt,

transfer more shortening from it. See
your EZ Melt manual.

 Melt some shortening in a pan on the

stove and carefully pour it into the kettle.

15. Continue adding dough to the hopper as
needed. Add dough to the hopper without
priming it again as long as it does not
become empty. If the hopper does become
empty, it must be primed again.

16. When filling the hopper for the last time, use
all of the dough in the hopper. To do so,
push the dough to the bottom of the hopper
using a rubber scraper or spatula. Be careful
not to jam the scraper in the donut cutter.

WARNING

To avoid injury, never put your hand in or

under the hopper while the machine is on.

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4 MN-1032EN Donut Robot Mark VI OM

2 Cleaning

WARNING

Thoroughly clean and dry the floor if

shortening, water, or other materials are

spilled. Materials spilled on the floor can

cause serious injury or loss of life.

WARNING

To avoid electrocuting yourself or

damaging the machine, never allow water,

steam, shortening, cleaning solution, or any

other liquid to enter the heater head or

cutter head assemblies.

Daily

You must clean the hopper and the plunger daily,
or after each use. Follow these general
guidelines:

 Use household dishwashing detergent.

Do not use strong alkali cleaners such as
lye, soda ash, or trisodium phosphate, as
these discolor and corrode aluminum.

To clean the hopper and the plunger:

1. Unplug the cutter head power cord.

2. Remove the plunger and the hopper. To do
so, reverse the procedures found in steps 2
and 3 of “Assembling the Cutter” in
Section 1 of the Technical Supplement.

3. Pre-soak the parts, if necessary, to loosen
stubborn or dried-on deposits.

4. Wash the hopper and the plunger separately
in hot water and a detergent recommended
for aluminum. Use a non-scratching plastic
scouring cloth to remove soil and restore
luster.

5. Rinse the hopper and the plunger separately
in clear, hot water (170-190F/77-88C).

6. Dry each part completely.

7. Dip the plunger and the hopper cylinder in
mineral oil or liquid shortening to prevent
rust and sticking.

8. Wipe the cutter head assembly with a soft
cloth dampened with hot water and an
appropriate cleaner. Wipe it with another
damp cloth to remove the cleaner. Wipe it
dry.

 Wash, dry, and lubricate parts

thoroughly to prevent rusting.

 When washing parts by hand, wash each

part separately; do not put any other
utensil or dish in the sink with the part
being washed.

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Donut Robot Mark VI OM MN-1032EN 5

To avoid electrocution or damage to the

machine, never immerse the cutter head.

WARNING

As Needed

Filter the shortening in the fryer daily or weekly,
depending on the level of donut production. The
method used to filter the shortening depends on
whether you are using an optional EZ Melt, an
optional Filter Flo Siphon, or neither.

Filtering with an EZ Melt

If you have an EZ Melt, you should rinse the
conveyor and the kettle when you filter
shortening. To rinse and filter using an EZ Melt,
follow the steps below. Refer to your EZ Melt
manual for complete instructions.

1. Disconnect the machine from the power
source.

2. Unplug the cutter head power cord.

3. Let the shortening cool to 100F/38C.

4. Drain the shortening from the fryer kettle
into the EZ Melt. To do this, reach under
the table and open the drain valve
underneath the Donut Robot. Let the
shortening drain into the EZ Melt. See
Figure 2-1.

WARNING

Thoroughly clean and dry the floor if

shortening is spilled. Shortening on the

floor can cause serious injury or loss of life.

5. Using the rinsing hose of the EZ Melt, rinse
the conveyor assembly and the kettle with
shortening. Allow the shortening to drain
into the EZ Melt.

6. Close the drain valve.

Figure 2-1. Opening the Drain Valve.

Filtering with a Filter Flo
Siphon

To filter shortening using an optional Filter Flo
Siphon, refer to “Filter Flo Siphon” in Appendix
A for instructions.

Filtering without Accessories

If you do not have an EZ Melt or a Filter Flo
Siphon, follow the steps below to filter your
shortening. You could also use this procedure if
you wanted to clean your turner and drop plate.

1. Disconnect the machine from the power
source.

2. Let the shortening cool to 100F/38C.

3. Unplug the cutter head power cord.

4. Lift the cutter head off the swing column.

5. Remove the conveyor assembly as explained
below. Get another person to help you.

a. Obtain two pieces of wood, at least 1” x

1” x 15” (2.5 cm x 2.5 cm x 38 cm).

b. Lift off the swing connecting rod.

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6 MN-1032EN Donut Robot Mark VI OM

c. Lift the conveyor assembly from the

conveyor locating pin and pull it away
from the heater head to disengage the
main drive shaft coupling from the
conveyor drive coupling.

d. Lift the outfeed end of the conveyor.

Slide one piece of wood under the
conveyor and lay it across the top of the
kettle. Lift the other end of the conveyor
and do the same with the other piece of
wood. The conveyor will now be resting
on the two pieces of wood. Let the
shortening drain off of the conveyor and
into the kettle. See Figure 2-2.

Figure 2-3. Removing the Turner Cam

Assembly.

Figure 2-2. Draining the Shortening off of

the Conveyor.

6. If you want to clean the turner assembly,
remove and clean it as follows:

a. Move the flight bars of the conveyor

until the turner is in the middle of a

flight pocket.
b. Swing the turner cam weight up.
c. Lift up and pull out on the turner cam

assembly. See Figure 2-3.
d. Lift out the turner assembly. See Figure

2-4.
e. Wash the turner cam assembly and

turner assembly using mild detergent and

warm water.

Figure 2-4. Removing the Turner Assembly.

f. Rinse the turner cam assembly and

turner assembly in clear water.

g. Dry these parts thoroughly.

WARNING

Dry all parts thoroughly. Moisture causes

hot shortening to spatter, which may cause

serious injury.

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Donut Robot Mark VI OM MN-1032EN 7

7. If you want to clean the drop plate, remove
it by lifting its forward end and sliding it
toward the rear of the conveyor. (See Figure
2-5. The Donut Robot Mark V is shown.)
Wipe the drop plate with a damp cloth.

CAUTION

If the drop plate is scratched, donuts will

stick to it. To prevent this from happening,

always wipe the drop plate in the direction

of the grain in the metal, which runs

parallel to the length of the conveyor, and

never use abrasive cleaners.

c. Slowly open the drain valve and allow

the shortening to drain out. (See Figure
2-1.)

d. If the bucket becomes full, close the

drain valve. Continue draining
shortening into another bucket.

WARNING

Do not use plastic buckets. If the

shortening is not cool enough, the buckets

will melt; possibly causing you to be

burned, and causing shortening to get on

the floor.

WARNING

Do not allow the shortening to overflow the

buckets. Shortening will get on the floor,

and if the shortening is not cool enough,

you may be burned.

Figure 2-5. Removing the Drop Plate.

8. After the shortening has drained off of the
conveyor assembly, set the conveyor
assembly aside.

. Check again to see that the shortening in the

kettle has cooled to 100F/38C.

10. Remove the shortening from the fryer kettle.
Follow these steps:

a. Place a large metal bucket underneath

the drain valve.

b. Attach a filter to the bucket.

WARNING

Thoroughly clean and dry the floor if

shortening is spilled. Shortening on the

floor can cause serious injury or loss of life.

11. Brush off any carbon that has accumulated
on the heating element. Accumulated
carbon can cause corrosion and ineffective
heating.

12. Tilt the heater head assembly back, raising
the heating element out of the kettle.

13. Using a non-abrasive, non-metallic spatula,
scrape the carbon, sediment, and any
remaining shortening into the drain valve.

14. Tilt the heater head assembly down.

15. Put the drop plate, turner cam assembly, and
turner assembly back on the conveyor
assembly.

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8 MN-1032EN Donut Robot Mark VI OM

16. Install the conveyor assembly.

17. Close the drain valve.

Monthly

To ensure that your Mark V-DW continues to
work well and to make good products, you must
clean the conveyor and the kettle thoroughly
every month. There are four basic steps to
cleaning the conveyor and the fryer kettle:
removing the shortening, washing, rinsing, and
drying. You must perform all four steps and
perform them in the order listed.

Removing the Shortening

1. Disconnect the machine from the power
source.

2. Unplug the cutter head power cord.

3. Let the shortening cool to 100F/38C.

a. Disengage the swing connecting rod

from the swing column.

b. Lift the conveyor assembly from the

conveyor locating pin and pull it away
from the heater head to disengage the
main drive shaft coupling from the
conveyor drive coupling.

c. Remove and set aside the conveyor

assembly.

8. Brush off any carbon that has accumulated
on the heating element. Accumulated
carbon can cause corrosion and ineffective
heating.

9. If you have an EZ Melt, use the rinsing hose
to rinse the kettle with shortening. Allow
the shortening to drain into the EZ Melt.

10. Install the conveyor assembly.

11. Close the drain valve.

4. Remove the shortening from the fryer kettle.
To do this, place an EZ Melt or a large metal
bucket underneath the drain valve. Slowly
open the drain valve and allow the
shortening to drain out. (See Figure 2-1.) If
you are using a bucket and the bucket
becomes full, close the drain valve.
Continue draining into another bucket.

WARNING

Thoroughly clean and dry the floor if

shortening is spilled. Shortening on the

floor can cause serious injury or loss of life.

5. Lift the cutter head off the swing column.

6. If you have an EZ Melt, use the rinsing hose
to rinse the conveyor assembly and the kettle
with shortening. Allow the shortening to
drain into the EZ Melt.

7. When all of the shortening has dripped off of
the conveyor assembly, remove the
conveyor assembly as follows:

Washing

1. Pour hot water into the kettle, up to the
normal level of the shortening. Add about
2 oz/59 ml of trisodium phosphate or other
appropriate cleaner.

2. Connect the machine to the power source.
Heat the solution to 200F/93C. Turn on
the conveyor. Keep the solution at this
temperature for 15-20 minutes.

3. Turn off the conveyor and scrub the soiled
parts while the solution is under heat. Do
not use any abrasive cleaners or scrapers.

4. Turn off the heater and disconnect the
machine from the power source. Allow the
cleaning solution to cool to 100F/38C.

5. Remove the cleaning solution from the fryer
kettle. To do this, place a large metal bucket
underneath the drain valve. Slowly open the
drain valve and allow the cleaning solution
to drain into the bucket. If the bucket
becomes full, close the drain valve and
replace the bucket. Continue draining into
another bucket.

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Donut Robot Mark VI OM MN-1032EN 9

WARNING

Do not use plastic buckets. If the cleaning

solution is not cool enough, the buckets will

melt; possibly causing burns, and causing

cleaning solution to get on the floor.

WARNING

Do not allow the cleaning solution to

overflow the buckets. Cleaning solution

will get on the floor, and if the solution is

not cool enough, you may be burned.

WARNING

Thoroughly clean and dry the floor if

cleaning solution is spilled. Liquid on the

floor can cause serious injury or loss of life.

6. Remove the conveyor and tilt the heater
head back as you did before.

5. Remove the water from the fryer kettle by
placing a large metal bucket underneath the
drain valve. Slowly open the drain valve
and allow the water to drain into the bucket.
If the bucket becomes full, close the drain
valve and replace the bucket. Continue
draining into another bucket.

WARNING

Do not use plastic buckets. If the water is

not cool enough, the buckets will melt;

possibly causing you to be burned, and

causing water to get on the floor.

WARNING

Do not allow the water to overflow the

buckets. Water may spill, and if the water

is not cool enough, you may be burned.

WARNING

7. Lift the kettle out of the fryer case.

8. Rinse the kettle thoroughly and dry it on the
outside.

9. Install the kettle, tilt the heater head
assembly down, and install the conveyor
assembly as before.

10. Close the drain valve.

Rinsing

1. Pour clean water into the kettle, up to the
normal level of the shortening.

2. Connect the machine to the power source.
Heat the water to 200F/93C.

3. Run the conveyor for 5-10 minutes.

4. Turn off the heater and disconnect the
machine from the power source. Allow the
water to cool to 100F/38C.

Thoroughly clean and dry the floor if water

is spilled. Water on the floor can cause

serious injury or loss of life.

Drying

1. With the help of another person, lift the
conveyor assembly out of the fryer case.
Tilt the heater head assembly back.

2. Thoroughly dry all parts, including the
conveyor, the heating elements, and the
inside of the kettle.

WARNING

All parts must be dried thoroughly.

Moisture causes hot shortening to spatter,

which may cause serious injury.

3. Assemble the Donut Robot as before and
close the drain valve.

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10 MN-1032EN Donut Robot Mark VI OM

3 Maintenance

WARNING

To avoid being burned, electrocuted, or

otherwise injured, always unplug the

machine and allow it to cool before

performing any maintenance.

Lubricating

Daily

Before using the machine each day, apply edible­grade mineral oil to the plunger connecting rod.
The oil should penetrate the ball lock and the
spring socket. See Figure 3-1.

Weekly

Apply a few drops of SAE 30 machine oil to the
swing column where it contacts the swing
column bracket.

Taking Care of the Plunger,
Hopper, and Cylinder

The plunger, hopper, and cylinder of your Donut
Robot are precision instruments. If you take
good care of them, they will perform well for
years. Follow these guidelines:

 Clean these parts only in the manner

explained in this manual.

 Handle these parts with care. Avoid

dropping them on hard surfaces.

 Do not force the machine if it becomes

jammed. To avoid damaging the
plunger, disassemble the machine and
remove any obstructions.

Figure 3-1. Lubricating the Connecting Rod

Assembly.

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Donut Robot Mark VI OM MN-1032EN 11

4 Donut-Making Helps

Tips on Making Quality
Cake Donuts

 Use the correct batter temperature.
In general, the correct batter temperature is

75-80 (24-27C). Check the mix
manufacturer’s instructions, as the
recommended temperature range may vary.

If the batter is too warm, the donuts will lack

volume and may “ring out” or be misshapen.
If the batter is too cold, the donuts will stay
under the shortening too long, fry too
slowly, and crack open or ball up. They may
also absorb excess shortening and lose
volume.

 Use the correct floor time.
A floor time of 10 minutes between mixing

and cutting allows the baking powder to
react with the water. This helps the donuts
attain the proper volume and absorb the
proper amount of shortening.

If the floor time exceeds 30 minutes, the mix

will gas off, the donuts will lose volume and
shape and will absorb too much shortening.

If the shortening is too cold, the donuts will

spread too rapidly, will form large rings, will
tend to crack open, will be too light in
appearance, and will absorb too much
shortening.

 Maintain the proper shortening level. We

recommend a distance of 1 1/4” (3.2 cm)
between the cutter and the shortening.

If the shortening is too deep, the donuts may

not turn over when they reach the turner,
causing them to cook unevenly.

If the shortening is too shallow (too far

below the cutter), the donuts may not drop
flat, may turn over while submerging and
surfacing, and may become irregular,
cracked, or rough-crusted.

 Ensure that the donuts absorb the right

amount of shortening.

Donuts should absorb 1-1/2 to 3 oz (42 to

85 g) of shortening per dozen, depending on
their weight. You can achieve proper
absorption by following tips 1-3.

 If the donuts do not absorb enough

shortening, they will not keep well.

 Use the correct frying temperature.
The correct shortening temperature for

frying is 370-380F (188-193C).

If the shortening is too hot, the donuts will

fry too quickly on the outside and will lose
volume. The donuts may also become dense
inside.

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Donut Robot Mark VI OM MN-1032EN 13

If they absorb too much shortening, they

will lose volume and may become
misshapen. If this happens, follow tips 1-3,
mix the batter a little longer than usual, turn
the donuts as soon as they become golden
brown, and turn the donuts only once.

Temperature Conversion

To convert temperatures from Fahrenheit to
Celsius, subtract 32 from F and divide the result
by 1.8. For example, 212F-32/1.8 = 100C.

To convert temperatures from Celsius to
Fahrenheit, multiply C by 1.8 and add 32 to the
result. For example, (100C x 1.8) + 32 = 212F.

F C F C

55 12.8 340 171.1
60 15.6 345 173.9
65 18.3 350 176.7
70 21.2 355 179.4
75 23.9 360 182.2

80 26.7 365 185.0
325 162.8 370 187.8
330 165.6 375 190.6
335 168.3 380 193.3

Ratios of Plunger Sizes to
Donut Weights

The weights given are for donuts without icings
or other toppings. They are provided for
reference only, as weights vary according to the
density of the batter.

Plunger Size Donut Weight per

Dozen

1” 5-8 oz (142-227 g)
1 7/16” 10-17 oz (283-482 g)
1 9/16” 14-21 oz (397-595 g)

1 13/16” 19-23 oz (539-652 g)

Calculating Correct Water
Temperature

The following is an example of how to calculate
the correct water temperature to use. You must
use your own room temperature, dry mix
temperature, desired batter temperature, and, if
you are making yeast-raised donuts, estimated
temperature increase during mixing.

Cake Donuts Yeast-Raised Donuts

Room temperature 72 22.2 72 22.2

Dry mix temperature +70 +21.1 +70 +21.1

Desired batter temperature 75 23.9 80 26.7

Desired water temp. for cake donuts

Temperature increase during mixing (average: 30F [17C])

Desired water temperature for yeast-raised donuts

Total A

Total B

Total B

-Total A

x3

F

142 43.3 142 43.3

225 71.7 240 80.1

225 71.7 240 80.1

-142 -43.3 -142 -43.3

83F

x3 x3 x3

Figure from above 98 36.8

C

28.4C

98 36.8

F



-30

68F

-17

C



19.8C

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14 MN-1032EN Donut Robot Mark VI OM

5 Related Products

This appendix contains information about the
following products which you might use with
the Donut Robot:

 Feed Table
 Roto Cooler
 Icing Finishing Tree and Roto Cooler
 Filter Flo Siphon

FT2-DW Feed Table

SPECIFICATIONS

Dimensions Shipping

Weight

L = 49”/124.5

cm

W = 19-

1/8”/48.6 cm

H = 11”/28 cm

The FT2-DW Feed Table is designed to supply
proofed yeast-raised donuts to the Mark VI.

The Feed Table produces less than 70 dB(A) of
equivalent continuous A-weighted sound
pressure at work stations. This has been
determined while the machine has been running,
using a Bruel & Kjaer Sound level meter, type

2236.

55 lb./

24.8 kg

Electrical Data Construction Standard

115 V

1 Phase

50 Hz

Equipment

Stainless steel,
nickel-plated mild
steel, and aluminum
alloys.

The Feed Table is meant to be used on a flat,
stationary table or countertop, positioned end-to­end with the Donut Robot. The operator is
expected to read and follow these instructions
and warnings.

Complete conveyor
assembly, including
drive system and
controls. Does not
include proofing
cloths or proofing
boards.

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Donut Robot Mark VI OM MN-1032EN 15

Figure 5-1. FT2-DW Feed Table.

Operation

1. Test to make sure that the automatic timing
for the Feed Table is working. To do this:

a. Turn on the Donut Robot’s conveyor

drive.

b. Turn on the Feed Table’s conveyor

drive.

The Feed Table should receive a signal

from the Donut Robot, move forward the
distance needed to supply one pocket of
donuts, and then stop until it receives the
next signal.

2. Proof your donuts on the proofing cloths
from the Feed Table.

3. Put a proofing board, with a proofing cloth
on it, on the Feed Table.

4. Press the prime switch on the power head
assembly. The hooks on the Feed Table will
grab the proofing cloth off of the proofing
board. Allow the cloth to advance to the
front of the Feed Table.

the donuts go into the fryer, the proofing
cloths are carried underneath the Feed Table
and fall onto the work surface.

6. Continue putting proofing cloths on the Feed
Table.

CAUTION

To avoid damaging the Feed Table, never

use force to assemble or operate it.

Maintenance and Cleaning

After Each Use

Use a soft, damp cloth for cleaning.

WARNING

To avoid electrocuting yourself or

damaging the machine, never allow any

liquid to enter the power head.

5. Release the prime switch and turn on the
main power. Remove the proofing board.

When the Feed Table is on, the Feed Table

automatically advances donuts when the
Donut Robot is ready to accept them. After

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16 MN-1032EN Donut Robot Mark VI OM

Roto Cooler

SPECIFICATIONS

Dimensions Shipping

Weight

Dia.=31”/79 cm
H=6-5/8”/17 cm

Figure 5-2. Roto Cooler.

The Roto Cooler is designed to catch and cool
donuts as they drop from the outfeed end of the
Donut Robot.

17 lb/7.7 kg 120 V

Electrical Data Construction Standard

1 Phase

50 Hz

Equipment

Basket: High-density
polyethylene. Base:
Spun, polished,
heavy-gauge
aluminum.

To use the Roto Cooler:

1. Place the Roto Cooler near the outfeed end
of the Donut Robot so donuts will fall into
it.

2. Connect the Roto Cooler power cord to the
120 V outlet on back of the Donut Robot’s
heater head.

3. Turn on the Roto Cooler. It will rotate and
receive donuts. Remove cooled donuts from
the Roto Cooler as needed.

4. When finished using the Roto Cooler, turn it
off and unplug it.

Basket and turntable
base with power cord
and motor.

WARNING

The Roto Cooler produces less than 70 dB(A) of
equivalent continuous A-weighted sound
pressure at work stations. This has been
determined while the machine has been running,
using a Bruel & Kjaer Sound level meter, type

2236.
The Roto Cooler is meant to be used on a flat,

stationary table or countertop. The operator is
expected to read and follow these instructions.

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Donut Robot Mark VI OM MN-1032EN 17

5. Clean the Roto Cooler using soap and water

To avoid electrocuting yourself or

damaging the machine, never immerse the

base of the Roto Cooler.

and a non-abrasive cloth or scrubber.

Icing Finishing Tree and Roto Cooler

SPECIFICATIONS

Dimensions Shipping

Weight

Dia.=31”/79 cm

H=32”/81 cm

24 lb/11 kg 120 V

Electrical Data Construction Standard

Equipment

1 Phase

50 Hz

Trays: Heavy-gauge
aluminum. Basket:
High-density
polyethylene. Base:
Spun, polished,
heavy-gauge
aluminum.

The Roto Cooler is designed to catch and cool
donuts as they drop from the outfeed end of the
Donut Robot. It is meant to be used on a flat,
stationary table or countertop.

The Roto Cooler produces less than 70 dB(A) of
equivalent continuous A-weighted sound
pressure at work stations. This has been
determined while the machine has been running,
using a Bruel & Kjaer Sound level meter, type

2236.

Power turntable and
four trays, three of
which have dividers.

The Icing Finishing Tree, which mounts on the
Roto Cooler, is designed to hold toppings in
which donuts can be dipped. The operator is
expected to read and follow these instructions.

To use the Roto Cooler and the Icing Finishing
Tree:

1. Attach the Icing Finishing Tree to the Roto
Cooler. Fill the trays with toppings.

Figure 5-3. Icing Finishing Tree and Roto

Cooler.

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22 MN-1032EN Donut Robot Mark VI OM

2. Install and operate the Roto Cooler as
explained in the previous section.

3. Decorate the donuts with the toppings in the
trays.

4. When you are finished using the Roto
Cooler and the Icing Finishing Tree, turn off
the Roto Cooler and unplug it.

WARNING

To avoid electrocuting yourself or

damaging the machine, never immerse the

base of the Roto Cooler.

5. Clean the trays of the Roto Cooler and the
Icing Finishing Tree using soap and water
and a non-abrasive cloth or scrubber.

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Donut Robot Mark VI OM MN-1032EN 23

te

Filter Flo Siphon

SPECIFICATIONS

Dimensions Shipping Weight Construction Standard Equipment

H=16”/41 cm

Dia.=6-1/4”/16

cm

bulb

mounting bracket

3 lb/1.4 kg Siphon tube and valve: nickel-plated

steel. Handle: wood. Filter ring:
powder-coated. Filters: flannel.
Mounting brackets: aluminum alloy.

The Filter Flo Siphon is designed to drain and
filter shortening from the kettle of the Donut
Robot. The operator is expected to read and
follow these instructions.

Installation

1. Let the shortening cool to 100F/38C.

Siphon assembly
including valve, filter,
filter ring, and clamp.

handle

siphon tube

filter mounting
bracket

valve

fil

r

Figure 5-4. Filter Flo Siphon.

WARNING

Hot shortening can cause serious burns.

Never touch hot shortening. Never wear

shorts while using the Filter Flo Siphon.

2. Place the mounting bracket, with the siphon
tube in it, on the lip of the kettle. You may
place it on the infeed end of the kettle, or on
the front side of the kettle. If you place it on
the front side, you must disconnect the
swing connecting rod from the throw arm
and move it out of the way.

3. Position the opening of the siphon tube near
the bottom of the kettle.

4. Tighten the thumb screw in the mounting
bracket.

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24 MN-1032EN Donut Robot Mark VI OM

5. Attach the filter assembly to the lower part
of the siphon tube, as shown in Figure A-5.
To do this:

a. Slide the opening in the filter mounting

bracket around the siphon tube.

b. Adjust the filter mounting bracket

vertically to ensure that the filter does
not touch the valve assembly.

c. Tighten the screw that holds the filter

mounting bracket to the siphon tube.

d. Tighten the screw that holds the filter

retaining ring to the filter mounting
bracket.

WARNING

Make sure that both screw in the filter
assembly are tight. If they are not, the

filter assembly might slide off of the siphon

tube during operation, causing shortening

to splatter.

6. Place a five-gallon metal container under the
filter.

Operation

1. Compress the bulb quickly and release it
quickly. Do this only once. Shortening
should flow into the container.

CAUTION

Do not compress the bulb more than once.

Doing so could allow hot shortening to get

into the bulb, damaging your equipment.

2. Watch the container as the shortening flows
into it. If the shortening rises to within 2”/
5 cm of the top of the container, do the
following:

a. With one hand, hold the siphon by the

handle. With the other hand, loosen the
thumb screw that holds the siphon
assembly to the mounting bracket on the
lip of the kettle.

b. Slowly lift the siphon assembly so its

opening is above the shortening. Do not
remove it from the mounting bracket.

c. Tighten the thumb screw.

WARNING

Do not use a plastic container. Hot

shortening could melt the container,

possibly burning you and getting

shortening on the floor. Shortening on the

floor could cause you to slip or fall,

resulting in injury or even death.

d. When the shortening stops flowing and

the valve closes, move the container out
from under the filter.

e. Place another five-gallon metal container

under the filter.

f. With one hand, hold the siphon by the

handle. With the other hand, loosen the
thumb screw that holds the siphon
assembly to the mounting bracket on the
lip of the kettle.

g. Slowly lower the siphon assembly so its

opening is near the bottom of the kettle.
h. Tighten the thumb screw.
i. Restart the siphon, as explained in

step 1.
j. Continue watching the container and

repeat the above procedure as needed.

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Donut Robot Mark VI OM MN-1032EN 25

WARNING

If you allow shortening to overflow the

container, the shortening could burn you,

and it will get on the floor, possibly causing

slips, falls, injury, or even death. If

shortening does get on the floor, thoroughly

clean and dry the floor right away.

3. When the shortening stops flowing, tilt up
the side of the kettle opposite the siphon.
Place a wedge under the side of the kettle to
hold it up. The remaining shortening will
now flow toward the siphon.

4. Set aside the container of shortening.

5. Remove the filter assembly.

6. Place a different container under the valve
assembly and start the siphon again. Drain
the remaining shortening and discard it; it
will be full of sediment.

Cleaning

1. Remove the siphon from the Donut Robot.

2. Squeeze the bulb several times to expel
shortening from the siphon.

3. Wipe the siphon clean and hang it with the
bulb side up so any remaining shortening
will drain. Place a pan under the siphon to
collect the shortening.

4. Rinse the filter bag and hang it to dry. You
may launder it as needed.

WARNING

After washing, be sure the Filter Flo

Siphon is completely dry before using it

again. Moisture will cause hot shortening

to spatter, which may cause serious injury.

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26 MN-1032EN Donut Robot Mark VI OM

Donut Robot



Mark VI

Technical Supplement

Belshaw Bros., Inc.

814 44

Phone: + -1-206-322-5474  Fax: + -1-206-322-5425

E-mail: [e-mail]  http://www.belshaw.com

th

Street NW, Suite 103

Auburn, WA 98001 USA

If you accept the machine from the shipping
company, you are, in effect, saying that the
machine is in good condition, and you must
pay for the machine. Belshaw cannot pay for

shipping damage, because the freight company
has accepted the machine from Belshaw in good
condition, and is responsible for its safe delivery.
For your protection, inspect the machine to see
that no parts are bent, scratched, or otherwise
damaged. If any damage has occurred in
shipping, file a freight claim with the shipping
company immediately.

IMPORTANT

Keep this manual for reference purposes.

To unpack the Donut Robot Mark VI and
transport it to the work station:

1. Remove the foam and other packing

materials from the two boxes.

2. Carry the hopper, plunger, and column to the

work station.

3. Coil the cutter head power cord and carry
the cutter head to the work station.

4. Carry the conveyor assembly to the work
station.

4. Remove the clevis pins that hold the heater
head in place, and lift the heater head out of
the fryer.

5. Coil the power cord and carry the heater
head to the work station.

6. Move the fryer case and kettle to the work
station.

EQUIPMENT RECORD

Please provide the information below when you correspond with us about your machine.

Purchased by _____________________________________________________________________
Installed by ______________________________________________________________________
Date of Installation ________________________________________________________________
Model number ___________________________________________________________________
Serial number

011108

MN-1033EN

Belshaw Bros., Inc.

th

814 44

Phone: + -1-206-322-5474  Fax: + -1-206-322-5425

Street NW, Suite 103

Auburn, WA 98001 USA

E-mail: [e-mail]  http://www.belshaw.com

Contents

1 Installation 1

Unpacking the Fryer 2
Initial Cleaning 2
Assembling the Fryer 3
Assembling the Cutter 5
Adjusting the Hopper 6
Leveling and Securing the Fryer 7
Moving the Fryer 7
FT2-DW Feed Table 9

2 Maintenance 11

Lubricating 11
Checking the Thermostat 12
Taking Care of the Plunger, Hopper, and Cylinder 13
Feed Table FT2DW 13

3 Troubleshooting 14

Mark VI 14
FT2-DW Feed Table 24

4 Electrical Components 28

Continuity Testing 28

5 Appendix 31

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Donut Robot Mark VI TS MN-1033EN iii

Preface

This technical supplement to the Donut Robot
Mark VI Operator’s Manual contains much
information that users and service persons may
find helpful, including the following:

 Detailed maintenance and trouble-

shooting guides

 Parts lists and assembly drawings of the

Mark VI and related products

 Wiring diagrams of related products
 Instructions on the testing and

calibration of electrical components

 Information to make your donut

production easier

Remember that this is a supplement, not the
official operator’s manual. Use this supplement
at your own risk. While we have made every
effort to inform you of how to behave safely,
Belshaw denies any liability for the use of the
information contained herein.

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iv MN-1033EN Donut Robot Mark VI TS

1 Installation

To help familiarize you with the major parts of
your Donut Robot Mark VI, please study the
photographs below.

FT2-DW Feed heater head
Table (optional) splash guard fryer conveyor

EZ Melt, model EZ6 (optional)

Figure 1-1. Donut Robot Mark VI, Set up for Producing Yeast-Raised Donuts.

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Donut Robot Mark VI TS MN-1033EN 1

bearing strut

cutter head

plunger

hopper

splash guard heater head

conveyor

swing
column

Figure 1-2. Donut Robot Mark VI, Set up for Producing Cake Donuts.

Unpacking the Fryer

To unpack the Donut Robot Mark VI and
transport it to the work station:

1. Remove the foam and other packing

materials from the two boxes.

2. Carry the hopper, plunger, and swing

column to the work station.

3. Coil the cutter head power cord and carry
the cutter head to the work station.

4. Carry the conveyor assembly to the work
station.

5. Remove the clevis pins that hold the heater
head in place, and lift the heater head out of
the fryer.

swing connecting rod fryer

6. Coil the power cord and carry the heater
head to the work station.

7. Move the fryer case and kettle to the work
station.

Initial Cleaning

Thoroughly clean your Donut Robot Mark VI
before using it. Remove all packing materials.
Refer to Section 3, “Cleaning.”

WARNING

To avoid electrocuting yourself or

damaging the machine, never allow any

kind of liquid to enter the cutter head or

heater head assemblies.

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2 MN-1033EN Donut Robot Mark VI TS

WARNING

Never let water and hot shortening come

in contact with each other. Moisture

causes hot shortening to spatter, which

may cause serious injury. Prior to use,
make sure that the kettle and any other

parts you have washed are dry.

After cleaning, assemble the fryer and cutter as
explained below.

Assembling the Fryer

1. Place the fryer case on a flat, stationary
surface.

2. Screw the fryer’s legs in as far as they will
go.

3. Set the kettle into the fryer case. The end of
the kettle that has the locating pin must be
placed at the outfeed end of the fryer case.
The lip of the kettle should fit securely over
the edge of the case.

6. Install the conveyor assembly as follows:
a. Hold the conveyor at the angle shown in

Figure 1-3 and slide the conveyor drive
coupling over the main drive shaft
coupling. The conveyor coupling has a
notch in it. Turn the conveyor coupling
until the head of the socket head screw
in the drive coupling can slide into this
notch. See Figure 1-3.

4. Install the heater head assembly as follows:
a. Align the holes in the heater head end

caps with the holes in the heater head
mounting brackets.

b. Slide the clevis pins through the holes so

that the pin heads are on the outsides.

c. Insert the hairpin clips in the holes in the

clevis pins.

5. Lower the heater head assembly into
position so the thermostat bulb bracket rests
on or very near the bottom of the kettle.

Figure 1-3. Joining the Couplings.

b. Lower the front side of the conveyor

assembly so the hole in the conveyor
flange fits over the locating pin on the
lip of the kettle. See Figure 1-4.

Figure 1-4. Installing the Conveyor.

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Donut Robot Mark VI TS MN-1033EN 3

Read steps 7 and 8 only if you are preparing to
make cake donuts.

7. Insert the swing column into the swing
column mounting bracket. Make sure the
plastic spacer washer is on the swing column
between the lower set collar and the swing
column mounting bracket. See Figure 1-5.

Figure 1-6. Connecting the Swing

Connecting Rod.

Figure 1-5. Inserting the Swing Column.

9. Be sure your power source matches the
specifications on the data plate. Connect the

8. Connect the swing connecting rod to the
throw arm of the swing column. A locating
pin on the swing connecting rod rests in a
hole in the throw arm. See Figure 1-6.

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machine to the power source.

10. Turn on the conveyor only and check to see
that it operates smoothly. The power switch
for the conveyor drive is on the heater head.

4 MN-1033EN Donut Robot Mark VI TS

Assembling the Cutter

Read this section only if you are preparing to
make cake donuts.

1. Set the cutter head assembly onto the swing
column. See Figure 1-7.

Figure 1-8. Mounting the Hopper.

3. Install the plunger as follows:

Figure 1-7. Mounting the Cutter Head

Assembly.

2. Mount the hopper by sliding the two
mounting studs on the hopper arch into the
notches on the bearing strut. Secure the
hopper with the thumb nuts. See Figure 1-8.

a. Lift the plunger connecting rod assembly

up and out of the way.

b. Put the narrow part of the plunger’s

center rod through the slot in the center
of the hopper arch.

c. Lower the plunger until the wider part at

the top of the center rod enters the round
opening in the hopper arch and the
plunger’s piston just enters the hopper
cylinder.

d. Lower the connecting rod assembly and

insert the pin on the rod into the hole
near the top of the center rod. See
Figure 1-9.

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Donut Robot Mark VI TS MN-1033EN 5

Figure 1-9. Installing the Plunger.

4. Plug the power cord from the cutter head
assembly into the outlet on the back of the
heater head.

c. Raise or lower the swing column as

needed.

d. Tighten the set screw. See Figure 1-10.

5. Test the cutter head to ensure that it is
operating properly. Turn it on using the
prime switch on the cutter head. The cutter
should run continuously. Turn off the cutter.

Adjusting the Hopper

Read this section only if you are preparing to
make cake donuts.

WARNING

To avoid injury, always unplug the

machine before making adjustments.

1. The bottom of the hopper should be 1”/ 2.5
cm above the flight bars. To set the height
of the hopper:

a. Hold the cutter and the hopper from

below.

b. Loosen the set screw in the lower set

collar on the swing column.

Figure 1-10. Adjusting the Height of the

Hopper.

2. As the hopper swings back and forth over
the kettle, the hopper cylinder should stop
the same distance away from either side of
the kettle at each end of the swing.

To check the swing of the hopper, turn on
the conveyor. If you need to center the
swing of the hopper, follow these steps:

a. Turn off the conveyor.
b. Loosen the set screws in the upper set

collar.
c. Swivel the bearing strut as needed.
d. Tighten the set screws. (See Figure

1-11.)
e. Double-check the swing of the hopper

by turning on the conveyor. Then turn

off the conveyor.

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6 MN-1033EN Donut Robot Mark VI TS

Moving the Fryer

If you ever need to move the fryer to a different
work station, follow this procedure:

1. Turn off the machine and disconnect it from
the power source. Unplug the cutter head
power cord.

2. Allow the machine and the shortening to
cool.

WARNING

Do not touch hot shortening. It can cause

serious burns.

3. Remove and set aside the plunger, the
hopper, and the cutter head, in that order.

Figure 1-11. Adjusting the Swing of the

Hopper.

Leveling and Securing the
Fryer

Check to see if the fryer is level. If it is not,
adjust the heights of the legs. Be sure that all six
legs rest on the work surface when the fryer is
level.

Bolt the fryer to the work surface as follows:

1. There are brackets on the ends of the fryer
case. Each has a hole in it. Mark the
locations of the holes on the work surface.

2. Drill holes through the work surface.

3. Insert bolts through the holes.

4. Tighten nuts onto the bolts to ensure that the
Donut Robot will not move.

4. Disconnect the swing connecting rod.
Remove and set aside the swing column.

5. Remove the shortening from the fryer as
explained in “Removing the Shortening” in
Section 3.

6. To avoid dropping the machine or getting
shortening on the floor, wipe excess
shortening off of the fryer and conveyor.

WARNING

Thoroughly clean and dry the floor if

shortening is spilled. Materials on the

floor can cause people to slip or fall,

resulting in serious injury or loss of life.

7. Set aside the conveyor.

8. Remove the clevis pins that hold the heater
head in place. Remove the heater head from
the fryer.

9. To prevent tripping, coil the power cord.
Move the heater head to the new work
station.

10. Remove the bolts that secure the fryer to the
work surface.

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Donut Robot Mark VI TS MN-1033EN 7

11. Move the fryer to its new location.

12. Install the heater head.

13. Move and install the conveyor

14. Move and install the swing column.
Connect the swing connecting rod.

15. To prevent tripping, coil the cutter head
power cord. Move and install the cutter
head.

16. Move and install the hopper and the plunger.

17. Level and secure the fryer.

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8 MN-1033EN Donut Robot Mark VI TS

FT2-DW Feed Table

SPECIFICATIONS

Dimensions Shipping

Weight

L = 49”/124.5

cm

W = 19-

1/8”/48.6 cm

H = 11”/28 cm

55 lb./

24.8 kg

Electrical Data Construction Standard

Equipment

115 V

1 Phase

50 Hz

Stainless steel,
nickel-plated mild
steel, and aluminum
alloys.

Complete conveyor
assembly, including
drive system and
controls. Does not
include proofing
cloths or proofing
boards.

Figure 1-12. FT2-DW Feed Table.

The FT2-DW Feed Table is designed to supply
proofed yeast-raised donuts to the Mark VI.

The Feed Table produces less than 70 dB(A) of
equivalent continuous A-weighted sound
pressure at work stations. This has been
determined while the machine has been running,
using a Bruel & Kjaer Sound level meter, type

2236.

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Donut Robot Mark VI TS MN-1033EN 9

The Feed Table is meant to be used on a flat,
stationary table or countertop, positioned end-to­end with the Donut Robot. The operator is
expected to read and follow these instructions
and warnings.

Installation

1. Unplug the cutter head power cord of your
Donut Robot.

2. Release the plunger from the cutter head.

3. Unscrew and lift off the hopper assembly.

4. Lift off the cutter head and swing column
assemblies.

5. Lift the outfeed end of the Feed Table and
set the brace under the trip shelf over the
edge of the kettle.

WARNING

To avoid injury, make sure that the Feed

Table is turned off before proceeding.

6. Plug the Feed Table power cord into the
outlet on the end of the heater head.

7. Set the Donut Robot to cut one cut per
pocket.

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10 MN-1032EN Donut Robot Mark VI TS

2 Maintenance

WARNING

To avoid being burned, electrocuted, or

otherwise injured, always unplug the

machine and allow it to cool before

performing any maintenance.

Lubricating

Daily

Before using the machine each day, apply edible­grade mineral oil to the plunger connecting rod.
The oil should penetrate the ball lock and the
spring socket. See Figure 2-1.

Weekly

* Apply a few drops of SAE 30-weight

machine oil to the swing column where
it contacts the swing column bracket.

* Remove the heater head cover and lightly

coat the gear teeth with multi-purpose
grease. Replace the cover. See Figure
2-2.

Figure 2-2. Lubricating the Drive Gears.

Figure 2-1. Lubricating the Connecting Rod

Assembly.

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Donut Robot Mark VI TS MN-1033EN 11

Yearly

Lubricate the conveyor drive motor as explained
below.

1. Disconnect the machine from the power
source.

2. Remove the back cover of the heater head.

3. Unscrew the two bolts that connect the
conveyor drive assembly to the bottom of
the heater head.

CAUTION

Be gentle with all parts of the conveyor

drive assembly, especially when pulling it

out of the heater head and putting it back

in the heater head.. Damaging the parts

could stop production.

4. Carefully pull the motor out of the heater
head. See Figure 2-3.

5. Apply 4 to 6 drops of SAE 30-weight
machine oil through the lubricating hole in
the bearing cap until the felt pad is saturated.
See Figure 2-4.

Figure 2-4. Lubricating the Conveyor Drive

Motor.

6. Carefully put the motor back in the heater
head, bolt the motor to the heater head, and
replace the back cover of the heater head.

Figure 2-3. Removing the Conveyor Drive

Motor.

Checking the Thermostat

If the quality of your product decreases, check
the accuracy of the thermostat. Heat some
shortening in the fryer, measure the temperature
of the shortening using a thermometer you know
to be accurate, and compare this reading to the
thermostat setting. It is important that you put the
thermometer in the top 1” (2.5 cm) or so of
shortening, because this is where the donuts are
fried, and this is where the temperature should be
consistent. If you need to calibrate the
thermostat, consult Section 5, “Electrical
Components.”

If you ever want to test the continuity of the
thermostat or any of the switches on your Donut
Robot, refer to Section 5, “Electrical
Components.”

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12 MN-1032EN Donut Robot Mark VI TS

Taking Care of the Plunger,
Hopper, and Cylinder

The plunger, hopper, and cylinder of your Donut
Robot are precision instruments. If you take good
care of them, they will perform well for years.
Follow these guidelines:

* Clean these parts only in the manner

explained in this manual.

* Handle these parts with care. Avoid

dropping them on hard surfaces.

* Do not force the machine if it becomes

jammed. To avoid damaging the plunger,
disassemble the machine and remove
any obstructions.

Feed Table FT2DW

After Each Use

Use a soft, damp cloth for cleaning.

WARNING

To avoid electrocuting yourself or

damaging the machine, never allow any

liquid to enter the power head.

Adjust conveyor chain tension

If the tension of the conveyor chains needs
adjusting, follow these steps:

1. Loosen the hex head bolts that hold the
roller shaft at the outfeed end of the
conveyor.

2. Pull the shaft until the chains reach the
correct tension. The tension is correct when
you can lift the chains about 1”/2,5 cm
above the surface of the Feed Table. Each
chain should have the same tension.

3. Tighten the hex head bolts that hold the
roller shaft.

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Donut Robot Mark VI TS MN-1033EN 13

3 Troubleshooting

This section is designed as an aid in trouble­shooting with the Donut Robot Mark VI and
with the FT2-DW Feed Table. It is not a
substitute for a qualified technician. If you
encounter a problem that is not covered in this
section, or if you try the remedies suggested here
and find that they do not correct the problem, call
Belshaw Bros. One of our customer support
representatives will be happy to help you.

To call Belshaw, first dial the appropriate
international access code, then 1-206-322-5474
(United States).

CAUTION

If you perform repairs yourself or have

them performed by anyone other than
Belshaw Bros. or a service technician

authorized by Belshaw Bros., you do so at

your own risk.

If your Donut Robot becomes badly worn or
seriously out of adjustment, send it to our factory
for complete rebuild and repair service. Return
your machine, freight prepaid, with your
instructions for service, your phone number, and
the name of the person for us to contact when we
have made a cost estimate. In most cases, the
machine can be shipped back, freight collect,
within five days.

Ship machines in need of servicing to:
Belshaw Bros., Inc.

814 44th Street NW, Suite 103.
Auburn, WA 98001 USA

If you need a replacement part, use the parts lists
in Section 3 to determine the part number and
description. When you order the part, please
specify the following:

* The model name of the machine.
* The serial number of the machine.
* The voltage, phase, and hertz of the

machine.

* The part number.
* The part description, including the size, if

applicable.

* The quantity desired.

Mark VI

Following is a troubleshooting chart to help you
identify and solve problems with your Mark VI.
See also Section 6, “Donut-Making Helps.”

WARNING

To avoid being burned, electrocuted, or

otherwise injured, unplug the machine and

allow it to cool before disassembling,

repairing, or wiring.

To avoid down time, call us to see whether we
have a machine we can loan to you while your
machine is being serviced.

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14 MN-1032EN Donut Robot Mark VI TS

THE DONUTS BALL OR BLISTER.

Possible Causes What To Do

The dough is too cold. See Section 6, “Donut-Making Helps.”

The shortening is too hot. Decrease the temperature setting.

The dough is overmixed. Review the mixing procedure.

The donuts are too large. Adjust the dial on the cutter head to produce smaller

donuts.

The shortening is old or contaminated.

Replace the bad shortening with fresh shortening.

To avoid being burned, turn off the machine and
allow the shortening to cool.

WARNING

THE DONUTS ARE SHAPED IMPERFECTLY.

Possible Causes What To Do

The shortening level is too low. Add shortening to reach the proper level.

The drop plate is out of position.

Reposition the drop plate.

The tip of the cylinder is dirty.

To avoid being burned, turn off the machine and
allow the shortening to cool.

WARNING

WARNING

Clean the cylinder.

The tip of the cylinder is nicked. Replace the hopper.

The size-selection dial is not tightened. Tighten the thumb nut.

The dough is overmixed. Review the mixing procedure.

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Donut Robot Mark VI TS MN-1033EN 15

To avoid injury, turn off the machine and remove
the hopper.

THE DONUTS ARE UNDERCOOKED.

Possible Causes What To Do

The shortening is not hot enough. Increase the temperature setting.

The conveyor is moving too quickly. Decrease the speed of the conveyor, using the knob

labeled “Fry Time in Seconds.”

The dough is too cold. See Section 6, “Donut-Making Helps.”

The dough has not had enough floor time. See Section 6, “Donut-Making Helps.”

The thermostat reads inaccurately. Calibrate the thermostat.

THE DONUTS ARE OVERCOOKED.

Possible Causes What To Do

The shortening is too hot. Decrease the temperature setting. The temperature

setting should never exceed 375F (191C).

The conveyor is moving too slowly. Increase the speed of the conveyor, using the knob

labeled “Fry Time in Seconds.”

The thermostat reads inaccurately. Calibrate the thermostat.

THE CUTTER SWING COLUMN CHATTERS.

Possible Causes What To Do

The nylon thrust washer is missing. Install the nylon thrust washer between the swing

To avoid injury, before doing either of the
following, turn off the machine.

column bracket and the set collar.

WARNING

There is not enough lubrication between the
swing column and the swing column mounting
bracket.

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16 MN-1032EN Donut Robot Mark VI TS

Lubricate the upper and lower legs of the bracket
with SAE 30-weight machine oil.

THE CONVEYOR BITES THE DONUTS.

Possible Causes What To Do

The donuts are not cooking enough. See “The donuts are undercooked” below.

The shortening level is too low. Add shortening to reach the proper level.

The turner is bent or packed with cooked food

Before doing any of the following, turn off the
machine and allow the shortening to cool.

Straighten and/or clean the turner.

particles.

The cam weight is sticking due to the

Clean to remove the cooked-on varnish.

accumulation of varnish.

The fryer is not level. Level the fryer.

THE CUTTER OPERATES CONTINUOUSLY.

Possible Causes What To Do

To avoid being burned, electrocuted, or
otherwise injured, before doing any of the
following, turn off the machine, allow the
shortening to cool, and disconnect the machine
from the power source.

WARNING

WARNING

One of the microswitches is defective. (There
are three microswitches in the conveyor drive
assembly and one microswitch in the cutter

For help in testing the microswitches, refer to
Section 5, “Electrical Components.” Replace any
defective microswitches.

head.)

Something is interfering with the nylon brake

Clear away the cause of the interference.

dog in the cutter head.

The brake spring in the cutter head is weak or

Replace the spring.

broken.

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Donut Robot Mark VI TS MN-1033EN 17

THE HEATING ELEMENT FAILS TO MAINTAIN THE PROPER
TEMPERATURE.

Possible Causes What To Do

The input voltage is incorrect. Supply the correct power as specified on the data

plate.

Sediment has accumulated around the
thermostat bulb.

Clean to remove the sediment. (You should clean the

The thermostat has been calibrated incorrectly. Recalibrate the thermostat.

The thermostat is defective.

Replace the thermostat.

To avoid being burned, turn off the machine and
allow the shortening to cool.

Donut Robot regularly and thoroughly.)

To avoid being burned or electrocuted, turn off
the machine, allow the shortening to cool, and
disconnect the machine from the power source.

WARNING

WARNING

THE DONUTS DROP AT THE WRONG TIME.

Possible Cause What To Do

The hopper swing is adjusted incorrectly.

Adjust the hopper swing. See “Adjusting the

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18 MN-1032EN Donut Robot Mark VI TS

To avoid injury, turn off the machine.

Hopper” in Section 1, “Installation,” of the
operator’s manual.

WARNING

THE CONVEYOR IS JAMMED.

Possible Causes What To Do

Cooked food particles are wedged between a
chain opening and a sprocket tooth.

The turner slot is packed with cooked food
particles.

The drop plate is out of position and is
interfering with the conveyor.

Something is interfering with the free movement
of the turner cam and cam weight.

The heating element is bent and is interfering
with the turner.

The turner is out of position and is catching on a
flight bar below.

WARNING

To avoid injury, before doing any of the
following, turn off the machine and allow the
shortening to cool.

Clean to remove the food particles. Clean the Donut
Robot regularly and thoroughly.

Clean to remove the food particles.

Reposition the drop plate.

Remove the obstruction.

Straighten the heating element.

Lift and move the outfeed end of the conveyor to
disengage the conveyor coupling from the conveyor
drive shaft. Turn the conveyor back 2-3 pockets. The
turner will return to the correct position.

The conveyor drive shaft and the drive motor
shaft are out of alignment.

Remove the cover of the drive assembly. Loosen the
four mounting spacers so the drive assembly can be
moved. Align the motor shaft with the conveyor
shaft. When they are aligned, tighten the mounting
spacers. Replace the cover.

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Donut Robot Mark VI TS MN-1033EN 19

THE MOTOR OVERHEATS.

Possible Causes What To Do

The power requirements of the machine do not
match the power source.

The motor is binding. Repair or replace the motor.

The motor is defective. Repair or replace the motor.

Supply the correct power as specified on the data
plate.

WARNING

To avoid being burned or electrocuted, before
doing the following, turn off the machine, allow
the shortening to cool, and disconnect the
machine from the power source.

THE CUTTER CUTS DOUBLE WHEN YOU HAVE SELECTED ONE CUT PER
POCKET.

Possible Causes What To Do

To avoid being burned or electrocuted, before
doing any of the following, turn off the machine,
allow the shortening to cool, and disconnect the
machine from the power source.

WARNING

The nylon brake dog is binding on the cutter
brake motor.

An internal wire is interfering with the nylon
brake dog.

The arm on the cutter head microswitch is bent. Bend the arm back into position or replace the

The wires on the cutter head microswitch are
reversed.

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20 MN-1032EN Donut Robot Mark VI TS

Loosen the brake dog. If the spring is missing or
weak, replace it. If the brake dog is worn, replace it.

Move the wire.

microswitch.

Make the correct connections.

THE CUTTER WILL NOT OPERATE, BUT THE CONVEYOR RUNS.

Possible Causes What To Do

The cutter head power cord is not plugged in to
the outlet on the back of the heater head.

Connect the cutter head power cord to the correct
outlet.

WARNING

The set screws in the cutter head cam are loose. Tighten the set screws.

The cutter head power cord is broken. Repair or replace the cutter head power cord.

The cutter motor is defective. Replace the cutter motor.

One of the microswitches is defective. (There
are three microswitches in the conveyor drive
assembly and one microswitch in the cutter
head.)

To avoid being burned, electrocuted, or
otherwise injured, before doing any of the
following, turn off the machine, allow the
shortening to cool, and disconnect the machine
from the power source.

For help in testing the microswitches, refer to
Section 5, “Electrical Components.” Replace any
defective microswitches.

The cutter head power switch is defective. Replace the cutter head power switch.

The circuit breaker on the back of the heater

Replace the circuit breaker.

head is defective.

The cutter head assembly wiring harness is not
connected.

Check the connection between the pin housing in the
conveyor drive assembly and the socket housing in
the heater head. Also, make sure that the pins are
securely seated in the pin housing.

The cuts-per-pocket switch is defective. Replace the cuts-per-pocket switch.

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Donut Robot Mark VI TS MN-1033EN 21

THE ELEMENT WILL NOT HEAT, AND THE CONVEYOR WILL NOT RUN.

Possible Causes What To Do

The power cord is not plugged in, or the outlet

Connect the machine to a good power source.

has no power.

To avoid being burned or electrocuted, before
doing any of the following, turn off the machine,
allow the shortening to cool, and disconnect the
machine from the power source.

WARNING

The power cord is defective. Replace the power cord.

The transformer is defective. Replace the transformer.

The connections to the transformer are bad. Rewire the connections to the transformer.

THE ELEMENT WILL NOT HEAT, BUT THE CONVEYOR RUNS.

Possible Causes What To Do

The high temperature limit control switch has
been tripped.

Push the red reset button on the back panel of the
heater head.

The thermostat has been calibrated incorrectly. Recalibrate the thermostat.

To avoid being burned or electrocuted, before
doing any of the following, turn off the machine,
allow the shortening to cool, and disconnect the
machine from the power source.

WARNING

The high temperature limit control is defective. Replace the high temperature limit control.

The thermostat is defective. Replace the thermostat.

The contactor for the transistor is defective. Replace the contactor.

The connections to the contactor are bad. Rewire the connections to the contactor.

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22 MN-1032EN Donut Robot Mark VI TS

THE ELEMENT HEATS, BUT THE CONVEYOR WILL NOT RUN.

Possible Causes What To Do

The input voltage is incorrect. Supply the correct power as specified on the data

plate.

The circuit breaker has been tripped. Reset it by moving the white switch on the back of

the heater head to “off” and then to “on.” If the
conveyor still will not run, see that the power source
agrees with the specifications on the data plate. If
the problem persists, see below.

To avoid being burned, electrocuted, or
otherwise injured, before doing any of the
following, turn off the machine, allow the
shortening to cool, and disconnect the machine
from the power source.

WARNING

There is a short circuit. Find it and repair it. (First, see “The circuit breaker

has been tripped” above.)

The wiring harness in the conveyor drive
assembly is not connected.

Check the connection of the pin connector from the
conveyor drive assembly to the socket connector in
the heater head enclosure. Make sure the pins in the
pin housing are securely seated in the housing.

The conveyor drive power switch is defective. Replace the switch.

The nylon brake dog is binding on the conveyor
brake motor.

If the brake dog is worn, replace it. If it is too tight,
loosen it. If the spring is weak or missing, replace it.

The brake motor is defective. Replace the brake motor.

An internal wire is interfering with the nylon

Move the wire.

brake dog.

A fan blade is caught on a wire. Move the wire.

The conveyor is jammed. Clear the obstruction.

The couplings are not engaged. Engage the couplings.

The conveyor drive coupling is slipping. Tighten the two set screws.

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Donut Robot Mark VI TS MN-1033EN 23

FT2-DW Feed Table

Troubleshooting

Feel free to call Belshaw Bros. One of our
customer support representatives will be happy
to help you. When calling, please specify the
following:

* The model name of the machine.
* The serial number of the machine.
* The voltage, phase, and hertz of the

machine.

To call, first dial the appropriate international
access code, then 1-206-322-5474 (United
States).

CAUTION

If you perform repairs yourself or have

them performed by anyone other than
Belshaw Bros. or a service technician

authorized by Belshaw Bros., you do so at

your own risk.

For factory service, return your machine, freight
prepaid, with your instructions for service, your
phone number, and the name of the person for us
to contact when we have made a cost estimate.

Ship machines in need of servicing to:
Belshaw Bros., Inc.

th

814 44

Street NW, Suite 103.

Auburn, WA 98001 USA
Following is a troubleshooting chart to help you

identify and solve problems with your FT2-DW
Feed Table.

WARNING

To avoid being burned, electrocuted, or

otherwise injured, unplug the machine and

allow it to cool before disassembling,

repairing, or wiring.

Belshaw Bros., Inc.  www.belshaw.com  Phone [phone]  Fax [phone]

24 MN-1032EN Donut Robot Mark VI TS

THE CONVEYOR CHAINS DO NOT ADVANCE WHEN THE MAIN POWER IS
ON OR WHEN THE PRIME SWITCH IS PRESSED, AND THE PILOT LIGHT
DOES NOT COME ON.

Possible Causes What To Do

The power cord is not connected. Plug in the power cord.

The circuit breaker for the gear box outlet on the
Donut Robot’s heater head is tripped.

The black or white wire in the power cord is
broken or poorly connected.

The fuse on the Feed Table is blown. Replace the fuse.

The fuse for the Donut Robot’s conveyor is
blown.

Push the white reset button near the outlet.

To avoid electric shock or other injury, before
doing any of the following, unplug the machine.

Repair the cord and/or make the proper connection.

Replace the fuse.

WARNING

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Donut Robot Mark VI TS MN-1033EN 25

THE CONVEYOR CHAINS DO NOT ADVANCE WHEN THE MAIN POWER IS
ON, BUT THEY DO ADVANCE WHEN THE PRIME SWITCH IS PRESSED.

Possible Causes What To Do

The red wire in the power cord is broken or
poorly connected.

The microswitch in the power head is defective. Replace the microswitch.

The microswitch in the Donut Robot’s signal
circuit is defective.

To avoid electric shock or other injury, before
doing any of the following, unplug the machine.

Repair the cord and/or make the proper connection.

Replace the microswitch.

WARNING

THE CONVEYOR CHAINS DO NOT ADVANCE AT ALL, DO NOT ADVANCE
FAR ENOUGH, OR DO NOT ADVANCE THE SAME DISTANCE DURING
EACH CYCLE, BUT THE PILOT LIGHT DOES COME ON.

Possible Cause What To Do

The cam in the power head is loose.

WARNING

Tighten the cam set screw.

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26 MN-1032EN Donut Robot Mark VI TS

To avoid electric shock or other injury, before
doing the following, unplug the machine.

THE CONVEYOR CHAINS ADVANCE CONTINUOUSLY WHEN THE MAIN
POWER IS ON.

Possible Causes What To Do

The brake is defective. Repair or replace the brake.

The cam in the power head is loose. Tighten the cam set screw.

The microswitch in the power head is defective. Replace the microswitch.

The microswitch in the Donut Robot’s signal
circuit is defective.

To avoid electric shock or other injury, before
doing any of the following, unplug the machine.

Replace the microswitch.

WARNING

TWO ROWS OF DONUTS ARE ADVANCED DURING EACH CYCLE.

Possible Causes What To Do

To avoid electric shock or other injury, before
doing either of the following, unplug the
machine.

WARNING

The brake is defective. Repair or replace the brake.

The cam in the power head is loose. Tighten the cam set screw.

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Donut Robot Mark VI TS MN-1033EN 27

4 Electrical Components

This section explains how to test the continuity
of electrical components in the Donut Robot
Mark VI. These include the toggle switches, the
microswitches, and the thermostat.

The section also contains a document by the
Robertshaw Controls Company, the maker of the
thermostat we use in the Donut Robot Mark VI.
It explains how to check, adjust, and recalibrate
the thermostat.

switch
terminals

toggle switch

Continuity Testing

To test the continuity of a toggle switch:

WARNING

To avoid the possibility of electric shock,

disconnect the machine from the power

source before testing.

1. Disconnect the machine from the power
source.

2. Disconnect the terminal wires from the
switch.

3. Obtain a continuity tester or a volt-ohm
meter. If neither of these instruments is
available, make a continuity tester using a
battery and a bulb. (See Figure 5-1.)

4. Connect the wires of the continuity tester to
the switch terminals, as shown in Figure 5-1,
and test the switch in the ON and OFF
positions. The switch should show
continuity only when in the ON position.

+

battery
_

Figure 4-1. Toggle Switch Continuity Test.

To test the continuity of a microswitch:

WARNING

To avoid the possibility of electric shock,

disconnect the machine from the power

source before testing.

1. Disconnect the machine from the power
supply.

2. Disconnect the terminal wires from the
switch.

3. Obtain a continuity tester or a volt-ohm
meter. If neither of these instruments is

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28 MN-1032EN Donut Robot Mark VI TS

available, make a continuity tester using a
battery and a bulb. (See Figure 5-2.)

4. Connect one wire of the continuity tester to
the microswitch’s common (COM) terminal
and the other wire to the normally open
(NO) terminal, as shown in Figure 5-2. The
switch should show continuity only when
the microswitch actuator arm is depressed.

5. To test the normally closed (NC) terminal,
move the wire from the normally open (NO)
terminal to the normally closed terminal.
Now the switch should show continuity only
when the actuator arm is not depressed.

switch
terminals

NC NO

COM

microswitch

To test the continuity of the thermostat:

WARNING

To avoid the possibility of electric shock,

disconnect the machine from the power

source before testing.

1. Disconnect the machine from the power
supply.

2. Disconnect the terminal wires from the
thermostat.

3. Connect the continuity tester across the B
terminals indicated in Figure 5-3. This set of
contacts should be closed whenever the
thermostat is on. To test, start with the
thermostat in the OFF position. Then turn
the thermostat up until you hear a distinct
click (at about the 175F [79C] setting). At
this time, there should be continuity across
the B terminals.

+

battery



Figure 4-2. Microswitch Continuity Test.

“B” terminals

“A” terminals

Figure 4-3. Thermostat Terminals.

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Donut Robot Mark VI TS MN-1033EN 29

4. Connect the continuity tester across the A
terminals indicated in Figure 5-3. Start with
the thermostat in the OFF position and turn
the thermostat up until you hear a distinct
click. If there is no continuity (the indicator
or light does not come on), proceed to
step 5.

5. With the continuity tester still connected,
turn the thermostat knob to OFF and remove
the knob. There is an adjusting screw in the
center of the knob stem. Turn it counter­clockwise until there is continuity. If there is
no continuity (the indicator or light does not
come on), then the thermostat is defective. If
there is continuity, proceed to step 6.

6. Immerse the thermostat sensing bulb in a
pan of boiling water and set the thermostat
at about 212F (100C). The continuity
tester’s indicator or light should go off. If
the indicator or light does not go off,
increase the temperature setting of the
thermostat until it does. Then recalibrate the
thermostat according to the manufacturer’s
instructions. If the indicator or light will not
go off at any setting or recalibration, then
the thermostat is defective.

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30 MN-1032EN Donut Robot Mark VI TS

5 Appendix

See Parts List Drawing Insert Page.

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Donut Robot Mark VI TS MN-1033EN 31