Belshaw Adamatic Donut Robot Mark 2 User Manual

®

Donut Robot

Mark II

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 II & Mark II GP

Operator’s Manual

Belshaw Bros., Inc.

814 44

Phone: [phone]  Fax: [phone]

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

th

Street Northwest, 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. The freight company has

accepted the responsibility for the safe delivery
of our machines. 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.

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-1012EN

Belshaw Bros., Inc.

814 44th Street Northwest, Suite 103

Auburn, WA 98001 USA

Phone: [phone]  Fax: [phone]

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

Contents

1 Operation 1

Making Cake Donuts 1
Making Yeast-Raised Donuts 3

2 Cleaning 5

Cleaning the Hopper and the Plunger 5
Cleaning the Conveyor and the Kettle 6

3 Maintenance 11

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

4 Related Products 12

FT-42 Feed Table 12
Roto Cooler 15
Icing Finishing Tree and Roto Cooler 16
Sugaring Tray and Roto Cooler 17
Filter Flo Siphon 18
Shortening Reserve Tank 21

5 Donut-Making Helps 22

Tips on Making Quality Cake Donuts 22
Calculating Correct Water Temperature 23
Ratios of Plunger Sizes to Donut Weights 23
Temperature Conversion 23

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Donut Robot Mark II OM MN-1012EN iii

Preface

The Donut Robot Mark II 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 II is designed to be used on a flat,
stationary table or countertop, with the operator
standing opposite the heater head of the machine.
The operator must work safely at all times and
read this manual and follow its instructions and
warnings.

The Mark II produces only 71.5 dB(A) of
equivalent A-weighted sound pressure at
workstations. This has been determined during a
dry run of the machine, using a Bruel & Kjaer
sound level meter, type 2236.

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

To use the Mark II 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. Moisture causes hot
shortening to spatter, which may cause
serious burns.

 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,
clean the area 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.

 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.

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iv MN-1012EN Donut Robot Mark II OM

1 Operation

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

Making Cake Donuts

1. If necessary, install the swing column,
connect the swing connecting rod, install the
cutter head, and install the hopper and the
plunger.

2. When the shortening reaches the correct
frying temperature, it should reach the
middle of 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:

 Pre-melt shortening in a pan on the stove

and carefully pour it into the kettle.

 Use the optional EZ Melt to melt

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

WARNING

Hot shortening causes severe burns.

WARNING

Air spaces can cause the shortening to

overheat and catch on fire.

3. Turn the heating element on by turning the
thermostat knob above 200F/93C. 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.

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

5. If you are using the optional Shortening
Reserve Tank, fill it with shortening. Then
position it on the conveyor side panels either
ahead of or behind the turner, but not above
it. The heat of the fryer will melt the
shortening in the tank.

 Put solid shortening into the kettle,

packing it tightly around the elements
and bulbs.

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Donut Robot Mark II OM MN-1012EN 1

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.

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.

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.

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

 Melt some shortening in a pan on the

stove and carefully pour it into the kettle.

 If you are using the optional EZ Melt,

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

 If you are using the optional Shortening

Reserve Tank, push open the supply
valve.

15. Continue adding dough to the hopper as
needed. You can add dough to the hopper
without priming it again as long as it does
not become empty. If the hopper does
become empty, you must prime it again.

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2 MN-1012EN Donut Robot Mark II OM

16. When you fill the hopper for the last time,
you will want to 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.

Making Yeast-Raised
Donuts

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

2. When the shortening reaches the correct
frying temperature, it should reach the
middle of 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:

WARNING

Air spaces can cause the shortening to

overheat and catch on fire.

3. Turn the heating element on by turning the
thermostat knob above 200F/93C. 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.

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

5. If you are using the optional Shortening
Reserve Tank, fill it with shortening. Then
position it on the conveyor side panels either
ahead of or behind the turner, but not above
it. The heat of the fryer will melt the
shortening in the tank.

 Pre-melt shortening in a pan on the stove

and carefully pour it into the kettle.

 Use the optional EZ Melt to melt

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

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

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

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 II OM MN-1012EN 3

8. 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.

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

 Melt some shortening in a pan on the

stove and carefully pour it into the kettle.

 If you are using the optional EZ Melt,

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

 If you are using the optional Shortening

Reserve Tank, push open the supply
valve.

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

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4 MN-1012EN Donut Robot Mark II 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 the

cutter head assembly.

Cleaning the Hopper and
the Plunger

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.

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.

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.

 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 II OM MN-1012EN 5

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.

CAUTION

To avoid electrocuting yourself or

damaging the machine, never immerse the

cutter head assembly.

Cleaning the Conveyor and
the Kettle

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.

Figure 3-1. Draining the Shortening off of

the Conveyor.

Removing the Shortening

WARNING

To avoid being burned or electrocuted,

disconnect the machine from the power

source before cleaning the fryer.

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 follows:
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.

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 out of

position.

c. Lift up and pull out on the turner cam

assembly. See Figure 3-2.

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 3-1.

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6 MN-1012EN Donut Robot Mark II OM

Figure 3-2. Removing the Turner Cam

Assembly.

d. Lift out the turner assembly. See Figure

3-3.

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.

Figure 3-3. Removing the Turner Assembly.

e. Wash the turner cam assembly and

turner assembly using mild detergent and
warm water.

f. Rinse the turner cam assembly and

turner assembly in clear water.

g. Dry these parts thoroughly.

WARNING

All parts must be dried thoroughly.

Moisture causes hot shortening to spatter,

which may cause serious injury.

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
3-4.) Wipe the drop plate with a damp cloth.

Figure 3-4. Removing the Drop Plate.

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

9. Check again to see that the shortening in the
kettle has cooled to 100F/38C.

10. Remove the shortening from the kettle using
one of these methods:

 Use an optional Filter Flo Siphon to

siphon the shortening into one or more
large metal buckets. (See the
instructions in Appendix A.) Be careful
not to disturb the sediment that has
accumulated in the bottom of the kettle.

 Tilt the heater head assembly back,

raising the heating element out of the

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Donut Robot Mark II OM MN-1012EN 7

kettle. Lift the kettle out of the fryer
case and carefully pour the shortening
into one or more large metal buckets. Be
careful not to disturb the sediment that
has accumulated in the bottom of the
kettle.

 Using a small saucepan or a metal

pitcher, scoop as much of the shortening
as you can into one or more large metal
buckets. Then lift the kettle out of the
fryer case and carefully pour the rest of
the shortening into a metal bucket. Be
careful not to disturb the sediment that
has accumulated in the bottom of the
kettle.

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.

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

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

15. Lift the kettle out of the fryer case. Remove
and dispose of the remaining shortening and
the accumulated sediment. Dry the outside
of the kettle.

16. Put the kettle back in the fryer case.

17. Tilt the heater head assembly down.

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

19. Install the conveyor assembly.

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

WARNING

Thoroughly clean and dry the floor if

shortening is spilled. Shortening on the

floor can cause serious injury or loss of life.

11. Return the kettle to the fryer case, if you
have removed it.

12. Tilt the heater assembly down.

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8 MN-1012EN Donut Robot Mark II OM

machine from the power source. Allow the
cleaning solution to cool to 100F/38C.

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

6. Remove the cleaning solution from the
kettle using one of these methods:

 If you have an optional Filter Flo

Siphon, remove its filter assembly. Then
use the Filter Flo to siphon the cleaning
solution into one or more large metal
buckets. (See the instructions in

Appendix A.) When the cleaning
solution has stopped draining, carefully
carry the buckets to the sink and slowly
pour the solution into the sink.

 Lift the kettle out of the fryer case,

carefully carry it to the sink, and slowly
pour the cleaning solution into the sink.

 Using a small saucepan or a metal

pitcher, scoop as much of the cleaning
solution as you can into one or more
large metal buckets. Then lift the kettle
out of the fryer case and carefully pour
the rest of the cleaning solution into a
metal bucket. Carefully carry the
buckets to the sink and slowly pour the
solution into the sink.

WARNING

Do not use plastic buckets. If the cleaning

solution is not cool enough, the buckets will

melt; possibly causing you to be burned,

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.

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.

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.

5. Lift the conveyor assembly out of the fryer
case. Tilt the heater head assembly back.

6. Remove the water from the kettle using one
of these methods:

 If you have an optional Filter Flo

Siphon, remove its filter assembly. Then
use the Filter Flo to siphon the cleaning
solution into one or more large metal
buckets. (See the instructions in
Appendix A.) When the cleaning
solution has stopped draining, carefully
carry the buckets to the sink and slowly
pour the solution into the sink.

 Lift the kettle out of the fryer case,

carefully carry it to the sink, and slowly
pour the cleaning solution into the sink.

WARNING

Thoroughly clean and dry the floor if

cleaning solution is spilled. Liquid on the

floor can cause serious injury or loss of life.

7. Lift the kettle out of the fryer case, if you
have not done so already.

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Donut Robot Mark II OM MN-1012EN 9

 Using a small saucepan or a metal

pitcher, scoop as much of the cleaning
solution as you can into one or more
large metal buckets. Then lift the kettle
out of the fryer case and carefully pour
the rest of the cleaning solution into a
metal bucket. Carefully carry the
buckets to the sink and slowly pour the
solution into the sink.

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 will get on the floor, and if

the water is not cool enough, you may be

burned.

WARNING

Thoroughly clean and dry the floor if water

is spilled. Water on the floor can cause

serious injury or loss of life.

Drying

1. Thoroughly dry all parts, including the
conveyor, the heating element(s), and the
inside of the kettle.

WARNING

All parts must be dried thoroughly.

Moisture causes hot shortening to spatter,

which may cause serious injury.

2. Assemble the Donut Robot as before.

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10 MN-1012EN Donut Robot Mark II OM

3 Maintenance

WARNING

To avoid being burned, electrocuted, or

otherwise injured, always unplug the

machine and allow it to cool down before

making adjustments, clearing obstructions,

lubricating, cleaning, or disassembling.

Taking Care of the Plunger,
Hopper, and Cylinder

The plunger, hopper, and cylinder of your Donut
Robot are precision instruments. With proper
care, 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.

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 4-1.

 Do not force the machine if it becomes

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

Figure 4-1. Lubricating the Connecting Rod.

Weekly

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

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Donut Robot Mark II OM MN-1012EN 11

4 Related Products

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

 Feed Table
 Roto Cooler
 Icing Finishing Tree and Roto Cooler
 Sugaring Tray and Roto Cooler
 Filter Flo Siphon
 Shortening Reserve Tank

FT-42 Feed Table

SPECIFICATIONS

Dimensions Shipping

Weight

L = 52”/132 cm

W = 19”/48 cm

H = 11 3/4”/

30 cm

73 lb/33.1 kg 115 V

Electrical Data Construction Standard

Equipment

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.

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12 MN-1012EN Donut Robot Mark II OM

Figure 4-1. FT-42 Feed Table.

The FT-42 Feed Table is designed to supply
proofed yeast-raised donuts to the Donut Robot.
It produces less than 70 dB(A) of equivalent A­weighted sound pressure at work stations. This
has been determined while running the machine,
using a Bruel & Kjaer sound level meter, type

2236. The Feed Table is meant to be used on a
flat, stationary table or countertop, positioned
end-to-end with the Donut Robot. The operator
is expected to read and follow these instructions.

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.

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.

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.

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

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Donut Robot Mark II OM MN-1012EN 13

6. Continue putting proofing cloths on the Feed
Table.

CAUTION

To avoid damaging the machine, never use

force to assemble or operate the Feed Table.

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.

As Needed

If you ever need to adjust the tension of the
conveyor chains, 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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14 MN-1012EN Donut Robot Mark II OM

Roto Cooler

SPECIFICATIONS

Dimensions Shipping

Weight

Dia.=24”/61 cm
H=6-5/8”/17 cm

16 lb/7.3 kg 120 V

Electrical Data Construction Standard

Equipment

1 Phase

50 Hz

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

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 you are finished using the Roto
Cooler, turn it off and unplug it.

Basket and turntable
base with power cord
and motor.

WARNING

Figure 4-2. Roto Cooler.

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

The Roto Cooler produces less than 70 dB(A) of
equivalent A-weighted sound pressure at work
stations. This has been determined while
running the machine, 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.

To use the Roto Cooler:

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

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Donut Robot Mark II OM MN-1012EN 15

To avoid electrocuting yourself or damaging
the machine, never submerge the base of the

Roto Cooler.

5. Clean the Roto Cooler using soap and water
and a non-abrasive cloth or scrubber.

Icing Finishing Tree and Roto Cooler

SPECIFICATIONS

Dimensions Shipping

Weight

Dia.=24”/61 cm

H=32”/81 cm

28 lb/

12.7 kg

Electrical
Data

120 V

1 Phase

50 Hz

Construction Standard Equipment

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

The Icing Finishing Tree 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 metal trays with toppings.

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

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

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

Figure 4-3. Icing Finishing Tree and Roto

Cooler.

The Roto Cooler is designed to catch and cool
donuts as they drop from the outfeed end of the
Donut Robot. It produces less than 70 dB(A) of
equivalent continuous A-weighted sound
pressure at work stations. This has been
determined while running the machine, using a
Bruel & Kjaer sound level meter, type 2236.
The Roto Cooler is meant to be used on a flat,
stationary table or countertop.

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16 MN-1012EN Donut Robot Mark II OM

To avoid electrocuting yourself or damaging
the machine, never submerge 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.

Sugaring Tray and Roto Cooler

SPECIFICATIONS

Dimensions Shipping

Weight

Dia.=17-1/4”/

44 cm

H=6-5/8”/17 cm

16 lb/7.3 kg

Electrical Data Construction Standard

Equipment

120 V

1 Phase

50 Hz

Spun, polished,
heavy-gauge
aluminum.

To use the Sugaring Tray and Roto Cooler base:

1. Put sugar, powdered sugar, or cinnamon­sugar in the tray.

2. Place the Sugaring Tray and Roto Cooler
base near the outfeed end of the Donut
Robot so donuts will fall into the tray.

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

4. Turn on the Roto Cooler base. The Sugaring
Tray will rotate and receive donuts.

Power turntable with
sugar tray.

Figure A-4. Sugaring Tray and Roto Cooler.

The Roto Cooler base makes the Sugaring Tray
rotate. It produces less than 70 dB(A) of
equivalent continuous A-weighted sound
pressure at work stations. This has been
determined while running the machine, using a
Bruel & Kjaer sound level meter, type 2236.
The Roto Cooler base is meant to be used on a
flat, stationary table or countertop.

The Sugaring Tray, which mounts on the Roto
Cooler, is designed to catch donuts as they drop
from the outfeed end of the Donut Robot, and to
hold toppings in which donuts can be dipped.
The operator is expected to read and follow these
instructions.

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Donut Robot Mark II OM MN-1012EN 17

5. Coat the donuts with the topping in the tray.

6. When you are finished using the Sugaring
Tray, turn off and unplug the Roto Cooler
base.

WARNING

To avoid electrocuting yourself or damaging
the machine, never submerge the base of the

Roto Cooler.

7. Clean the Sugaring Tray using soap and
water and a non-abrasive cloth or scrubber.

Filter Flo Siphon

SPECIFICATIONS

Dimensions Shipping Weight Construction Standard Equipment

H=16”/41 cm

Dia.=6-1/4”/16

cm

bulb

mounting bracket

handle

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.

siphon tube

filter mounting
bracket

valve
filter
valve
filter

Figure A-5. 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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18 MN-1012EN Donut Robot Mark II 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 II OM MN-1012EN 19

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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20 MN-1012EN Donut Robot Mark II OM

Shortening Reserve Tank

SPECIFICATIONS

Dimensions Shipping

Weight

L=11”/28 cm

W=5-1/2”/14 cm

D=4”/10 cm

The Shortening Reserve Tank is designed to
supply melted shortening to the kettle of the
Donut Robot. The operator is expected to read
and follow these instructions.

To use the Shortening Reserve Tank:

1. Position the Shortening Reserve Tank on the
conveyor side panels. Make sure that you
do not position it above the donut turner.

4 lb/2 kg 4 lb/2 kg

Capacity Construction Standard

shortening

WARNING

Be careful if you put hot shortening into the

tank. Hot shortening can cause serious burns.

Equipment

Nickel-plated steel
tank and non­corrosive self-closing
valve.

2. Place shortening in the tank.

3. Turn on the Donut Robot. The heat of the
fryer will melt the shortening in the tank.

4. To supply shortening to the fryer, open the
valve by pushing down on the valve
assembly.

5. When you are done making donuts, drain the
remaining shortening into the fryer.

6. When the shortening and equipment have
cooled completely, remove the Shortening
Reserve Tank and wash it.

Shortening reserve
tank and valve
assembly.

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Donut Robot Mark II OM MN-1012EN 21

5 Donut-Making Helps

Tips on Making Quality
Cake Donuts

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

75-80F/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” 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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22 MN-1012EN Donut Robot Mark II OM

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.

Calculating Correct Water
Temperature

The following is an example of how to calculate
the correct water temperature to use. You must

Room temperature 72 22.2 72 22.2

Dry mix temperature +70 +21.1 +70 +21.1

Total A

Desired batter temperature 75 23.9 80 26.7

Total B

Total B

-Total A

Desired water temp. for cake donuts

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

Desired water temperature for yeast-raised donuts

Cake Donuts

142 43.3 142 43.3

x3

225 71.7 240 80.1

225 71.7 240 80.1

-142

83F

use your own room temperature, dry mix
temperature, desired batter temperature, and, if
you are making yeast-raised donuts, estimated
temperature increase during mixing.

Yeast-Raised Donuts

F

x3 x3 x3

-43.3 -142 -43.3

Figure from above 98 36.8

C

28.4C

98 36.8

F



-30 -17

68F

19.8C

C



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

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

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Donut Robot Mark II OM MN-1012EN 23

Donut Robot



Mark II & Mark II GP

Technical Supplement

Belshaw Bros., Inc.

814 44

Phone: [phone]  Fax: [phone]

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

th

Street Northwest, 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. The freight company has

accepted the responsibility for the safe delivery
of our machines. 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.

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

0205

MN-1013EN

Belshaw Bros., Inc.

th

814 44

Street Northwest, Suite 103

Auburn, WA 98001 USA

Phone: [phone]  Fax: [phone]

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

Contents

1 Installation 1

Unpacking the Fryer 2
Initial Cleaning 2
Assembling the Fryer 2
Assembling the Cutter 4
Adjusting the Hopper 5
Leveling and Securing the Fryer 6
Moving the Fryer 6

2 Maintenance 8

Lubricating 8
Checking the Thermostat 9
Taking Care of the Plunger, Hopper, and Cylinder 10

3 Troubleshooting 11

Mark II 11
FT-42 Feed Table 21

4 Electrical Components 25

Continuity Testing 25
Robert Shaw Thermostat 28

5 Appendix 30

Parts List Drawing Insert Page Insert

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Donut Robot Mark II TS MN-1013EN iii

Preface

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

 Detailed maintenance procedures for the

Mark II

 Detailed troubleshooting guides for the

Mark II and the FT-42 Feed Table

 Parts lists and assembly drawings of the

Mark II, the FT-42 Feed Table, the Roto
Cooler, and the Icing Finishing Tree

 Wiring diagrams of the FT-42 Feed

Table and the Roto Cooler

 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. You 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-1013EN Donut Robot Mark II TS

1 Installation

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

cutter head
plunger
hopper

Swing
column

heater head

fryer swing connecting rod conveyor

Figure 1-1. Donut Robot Mark II.

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Donut Robot Mark II TS MN-1013EN 1

Unpacking the Fryer

To unpack the Donut Robot Mark II. First
transport the Mark II to the workstation:

1. Remove the foam and other packing

materials from the two boxes.

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

workstation.

3. Coil the cutter head power cord and carry
the cutter head to the workstation.

4. Carry the conveyor assembly to the
workstation.

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

6. Coil the power cord and carry the heater
head to the workstation.

7. Move the fryer case and kettle to the
workstation.

Initial Cleaning

Thoroughly clean your Donut Robot Mark II
before using it. Remove all packing materials.
Use household dishwashing detergent. Do not

use strong alkali cleaners such as lye, soda
ash, or trisodium phosphate. Thoroughly dry

and lubricate parts to prevent rusting.

WARNING

Never let water and hot shortening come in

contact. Moisture causes hot shortening to

spatter, which may cause serious injury.

Prior to use, make sure any 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.

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 pinheads are on the outsides.

Refer to the Cleaning section in the Operator's
Manual for detailed cleaning instructions.

WARNING

To avoid electrocution or damaging the

machine, never allow water, steam,

cleaning solution, or other liquid to enter

the cutter head or heater head assemblies.

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2 MN-1013EN Donut Robot Mark II TS

c. Insert the hairpin clips into 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.

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

Figure 1-2 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 1-2.)

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.

Figure 1-2. Joining the Couplings.

plastic spacer washer is on the swing column
between the set collar and the swing
column-mounting bracket. (See Figure 1-3.)

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 1-4.)

Figure 1-4. Connecting the Swing

Connecting Rod.

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

10. Turn on the conveyor only and check to see
that it operates smoothly. The power switch

Figure 1-3. Inserting the Swing Column.

for the conveyor drive is on the heater head.

If you are preparing to make yeast-raised donuts,
skip steps 7 and 8 and proceed to step 9.

7. Insert the swing column into the swing
column-mounting bracket. Make sure the

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Donut Robot Mark II TS MN-1013EN 3

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 1-5.)

Figure 1-6. Mounting the Hopper.

3. Install the plunger as follows:
a. Pull the plunger connecting rod up and

out of the way.

Figure 1-5. 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 thumbnuts. (See Figure 1-

6.)

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 and insert the

pin into the hole near the top of the
plunger center rod. (See Figure 1-7.)

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4 MN-1013EN Donut Robot Mark II TS

Figure 1-7. 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 setscrew. (See Figure 1-8.)

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 disconnect the

machine from the power source 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.

Figure 1-8. 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 setscrews in the upper set

collar.
c. Swivel the bearing strut as needed.
d. Tighten the setscrews. See Figure 1-9.

b. Loosen the setscrew in the lower set

collar on the swing column.

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Donut Robot Mark II TS MN-1013EN 5

Moving the Fryer

If you ever want to move the fryer to a different
workstation, 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 1-9. Adjusting the Swing of the

Hopper.

e. Double-check the swing of the hopper

by turning on the conveyor. Then turn
off the conveyor.

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.

4. Disconnect the swing connecting rod.

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 the 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.

3. Insert bolts through the holes.

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

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6 MN-1013EN Donut Robot Mark II TS

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

10. Move the fryer to its new location.

11. Install the heater head.

12. Move and install the conveyor.
13 Move and install the swing column.

Connect the swing connecting rod.

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

15. Move and install the hopper and the plunger.

16. Level and secure the fryer.

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Donut Robot Mark II TS MN-1013EN 7

2 Maintenance

WARNING

To avoid being burned, electrocuted, or

otherwise injured, always unplug the

machine and allow it to cool down before

making adjustments, clearing obstructions,

lubricating, cleaning, or disassembling.

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

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

2. 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.

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8 MN-1013EN Donut Robot Mark II TS

Yearly

Lubricate the conveyor drive motor as explained
below. To help you better understand where to
lubricate, refer to the Parts Drawings.

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 the

assembly out of the heater head and

putting it back in the heater head..

Damaging the parts could stop production.

5. Apply 4 to 6 drops of SAE 30 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.

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

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 the “Electrical Components”
section.

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

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Donut Robot Mark II TS MN-1013EN 9

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.

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10 MN-1013EN Donut Robot Mark II TS

3 Troubleshooting

This section is designed as an aid in
troubleshooting with the Donut Robot Mark II
and with the FT-42 Feed Table. It is not a
substitute for a qualified technician. You may
encounter a problem with your machine that is
not covered in this section, or you may try the
remedies suggested here and find that they do not
solve the problem. If this happens, call your
dealer or another qualified technician. Also, call
your dealer if you need a replacement part.

If your dealer cannot help you, please call
Belshaw Bros. When you call, please specify the
following:

 The model name of the machine.
 The serial number of the machine.
 The voltage, phase, and cycle of the

machine.

If your machine needs to be repaired, consult
your dealer or another local, qualified technician.
If they cannot repair your machine, Belshaw can
provide factory service. First call Belshaw for a
return goods authorization. Then send your
machine to the Belshaw factory, freight prepaid,
with instructions for service, your phone number,
and the name of the person to contact when a
cost estimate is calculated. In most cases, the
machine can be shipped back, freight collect,
within five days. Ship the machine to:

To avoid down time, call to see whether a loaner
machine is available while your machine is being
serviced.

CAUTION

If you perform repairs yourself or have

them performed by anyone other than a

service technician authorized by Belshaw

Bros., you do so at your own risk.

Mark II

Following is a troubleshooting chart to help
identify and solve problems with the Mark II.
See also “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.

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

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Donut Robot Mark II TS MN-1013EN 11

THE DONUTS BALL OR BLISTER.

Possible Causes What To Do

The dough is too cold. See “Donut-Making Helps” section.

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 or otherwise injured, 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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12 MN-1013EN Donut Robot Mark II TS

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 “Donut-Making Helps.”

The dough has not had enough floor time. See “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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Donut Robot Mark II TS MN-1013EN 13

Lubricate the upper and lower legs of the bracket
with SAE 30 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
particles.

The cam weight is sticking due to the
accumulation of varnish.

The fryer is not level. Level the fryer.

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

Straighten and/or clean the turner.

Clean to remove the cooked-on varnish.

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
head.)

Something is interfering with the nylon brake
dog in the cutter head.

The brake spring in the cutter head is weak or
broken.

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14 MN-1013EN Donut Robot Mark II TS

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

Clear away the cause of the interference.

Replace the spring.

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

To avoid injury, turn off the machine.

Hopper” in the “Installation” section.

WARNING

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.

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

WARNING

Clean to remove the sediment. (Clean the Donut

Robot regularly and thoroughly.)

The thermostat has been calibrated incorrectly. Recalibrate the thermostat.

The thermostat is defective.

Replace the thermostat.

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

WARNING

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Donut Robot Mark II TS MN-1013EN 15

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 being burned or otherwise injured,
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.

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16 MN-1013EN Donut Robot Mark II TS

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.

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, electrocuted, or otherwise
injured, 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

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.

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.

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.

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Donut Robot Mark II TS MN-1013EN 17

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.

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.)

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

Connect the cutter head power cord to the correct
outlet.

WARNING

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 circuit breaker on the back of the heater
head is defective.

The cutter head assembly wiring harness is not
connected.

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

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18 MN-1013EN Donut Robot Mark II TS

Replace the circuit breaker.

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 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
has no power.

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.

Connect the machine to a good power source.

WARNING

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.

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.

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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Donut Robot Mark II TS MN-1013EN 19

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

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.

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

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

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

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

The brake motor is defective. Replace the brake motor.

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.

has been tripped” above.)

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.

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

WARNING

An internal wire is interfering with the nylon
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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20 MN-1013EN Donut Robot Mark II TS

Move the wire.

FT-42 Feed Table

Following is a troubleshooting chart to help
identify and solve problems with the FT-42
Feed Table.

WARNING

To avoid being burned, electrocuted, or

otherwise injured, unplug the machine and

allow it to cool before disassembling,

repairing, or wiring.

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.

WARNING

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.

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Donut Robot Mark II TS MN-1013EN 21

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

WARNING

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

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22 MN-1013EN Donut Robot Mark II 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 II TS MN-1013EN 23

4 Electrical Components

This section explains how to test the continuity
of electrical components in the Donut Robot
Mark II. 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 II.
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 4-1.)

4. Connect the wires of the continuity tester to
the switch terminals, as shown in Figure C­1, 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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Donut Robot Mark II TS MN-1013EN 25

available, make a continuity tester using a
battery and a bulb. (See Figure 4-2.)

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 4-2. 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 4-3. 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 5-2. Microswitch Continuity Test.

4. Connect the continuity tester across the A
terminals. 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.

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26 MN-1013EN Donut Robot Mark II TS

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.

“B” terminals

“A” terminals

Figure 5-3. Thermostat Terminals.

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

Donut Robot Mark II TS MN-1013EN 27

5 Appendix

See Parts List Drawing Insert Page.

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

30 MN-1013EN Donut Robot Mark II TS