BKI BLF-75F Service Manual
Automatic Lift Fryer
MODELS BLF-75F, & BLF-75FC
Service Manual
Warranty Information
LIMITED ONE YEAR WARRANTY
BKI (The “Company”) warrants to the original purchaser/user, that at time of shipment from the Company
factory, this equipment will be free from defect in materials and workmanship. Written notice of a claim
under this Warranty must be given within ONE YEAR AND THREE MONTHS from date of shipment from
the factory. Defective conditions caused by abnormal use or misuse, lack of maintenance, damage by
third parties, alterations by unauthorized personnel, acts of God, failure to follow installation instructions
or any other events beyond the control of the company will NOT be covered under Warranty. The
obligation of the Company under this Warranty shall be limited to repairing or replacing (at the option of
the company) any part which is defective in reasonable opinion of the Company. The user will have the
responsibility and expense of removing and returning the defective part to the Company as well as the
cost of reinstalling the replacement or repaired part.
IN NO EVENT SHALL THE COMPANY BE LIABLE FOR LOSS OF USE, LOSS OF REVENUE OR
LOSS OF PRODUCT OR PROFIT OR FOR INDIRECT OR CONSEQUENTIAL DAM AGES INCLUDING
BUT NOT LIMITED TO, FOOD SPOILAGE OR PRODUCT LOSS. WARRANTY DOES NOT COVER
GLASS BREAKAGE. THE ABOVE WARRANTY IS EXCLUSIVE AND ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED, ARE EXCLUDED INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THIS WARRANTY SHALL
APPLY ONLY WITHIN THE CONTINENTAL UNITED STATES, ITS TERRITORIES, AND
POSSESSIONS AND IN CANADA.
LIMITED NINETY DAY LABOR WARRANTY
All labor necessary to repair or replace factory defective parts will be performed, without charge, to the
end user, by service personnel of a BKI Authorized Distributor during the first ninety days after the date of
installation of the new equipment.
Replacement parts: Any appliance replacement part, except lamps and fuses, which proves to be
defective in material or workmanship within 90 days from date of original installation will be repaired or
replaced without charge F.O.B. Factory, Simpsonville, S.C. or F.O.B. authorized distributor.
Automatic Lift Fryer Table of Contents
Table of Contents
Table of Contents........................................................................................................................................1
Introduction .................................................................................................................................................2
Safety Precautions....................................................................................................................................2
Safety Signs and Messages.................................................................................................................2
Safe Work Practices.............................................................................................................................3
Safety Labels........................................................................................................................................7
Installation ...................................................................................................................................................8
Unpacking and Handling...........................................................................................................................8
Assembly and Mounting ...........................................................................................................................8
Wiring........................................................................................................................................................8
Initial Test and Adjustment .......................................................................................................................9
Maintenance ..............................................................................................................................................10
Scheduled Maintenance.........................................................................................................................10
Filtering Procedure.............................................................................................................................11
Boil-Out Procedure.............................................................................................................................12
Filter Pad Replacement......................................................................................................................13
Troubleshooting......................................................................................................................................14
Replacement Parts....................................................................................................................................15
Assemblies..............................................................................................................................................15
Accessories.............................................................................................................................................27
Components............................................................................................................................................29
Wiring Diagrams........................................................................................................................................31
Notes ..........................................................................................................................................................48
1
Automatic Lift Fryer Introduction
Introduction
The BLF-75 Fryer is compact, attractive and functional in design. It is constructed of a stainless steel fryer
pot for cleaning ease. Exclusive BKI patented features and safety devices offer flexibility, efficiency and
reliability plus PERFECTION IN FRYING!
The BKI name and trademark on this unit assures you of the finest in design and engineering -- that it has
been built with care and dedication -- using the best materials available. Attention to the operating
instructions regarding proper installation, operation, and maintenance will result in long lasting
dependability to insure the highest profitable return on your investment.
PLEASE READ THIS ENTIRE MANUAL BEFORE OPERATING THE UNIT. If
you have any questions, please contact your BKI Distributor. If they are unable to
answer your questions, contact the BKI Technical Service Department, toll free:
1-800-927-6887. Outside the U.S., call 1-864-963-3471.
Safety Precautions
Always follow recommended safety precautions listed in this manual. Below is the safety alert symbol.
When you see this symbol on your equipment, be alert to the potential for personal injury or property
damage.
Safety Signs and Messages
The following Safety signs and messages are placed in this manual to provide instructions and identify
specific areas where potential hazards exist and special precautions should be taken. Know a nd
understand the meaning of these instructions, signs, and messages . Damage to the equipment, death or
serious injury to you or other persons may result if these messages are not followed.
This message indicates an imminently hazardous situation which, if not avoided,
will result in death or serious injury.
This message indicates a potentially hazardous situation, which, if not avoided,
could result in death or serious injury.
This message indicates a potentially hazardous situation, which, if not avoided,
may result in minor or moderate injury. It may also be used to alert against
unsafe practices.
This message is used when special information, instructions or identification are
required relating to procedures, equipment, tools, capacities and other spe cial
data.
2
Automatic Lift Fryer Introduction
Safe Work Practices
Keep The Casters Locked
To avoid spilling shortening, keep the casters locked. If any
shortening spills near your fryer, clean it up immediately.
Noncombustible Floors Only
Make sure your floor is noncombustible. Do not operate your fryer
on floors that are wood, carpeted or have rubber mats.
• Placing your fryer on a combustible floor could cause a fire.
Serious injury could result.
• Examples of noncombustible floors where you can safely
place your fryer are concrete, tile, and ceramic.
Keep The Area Around Your Fryer
Uncluttered
Make sure to keep the area around your fryer clear of any
obstacles.
Serious injury can occur if you trip or fall near the fryer. You could
be burned by hot shortening that splashes out of the fryer or by
falling against the hot metal of the fryer.
Keep The Floor Around Your Fryer Clean Of
Shortening
Make sure to keep the floor around your fryer clean of shortening
and other liquids.
Serious injury can occur if you slip near your fryer. You could be
burned by hot shortening that splashes out of the fryer or by falling
against the hot metal of the fryer.
3
Automatic Lift Fryer Introduction
Do Not Overfill The Fryer With Shortening
Hot shortening and steam may escape and burn you if you put too
much shortening in the fryer. Fill the fryer to approximately one inch
below the fill marks that are inside the fryer pot. Heat the
shortening. If needed, carefully add more shortening to bring the
level to the fill marks.
Do Not Let Any Water Get Into The Fryer
Always remove excess moisture from food before placing it into the
fryer basket. Water will cause the hot shortening to spatter. You
could be burned.
Do Not Overload The Basket With Food
Hot shortening and steam may escape and burn you if you place
too much food in the basket.
Wear Safe Clothing Appropriate To Your Job
Always wear your insulated mitts when handling the fryer basket or
touch any hot metal surfaces. You received a pair of insulated mitts
with your fryer. If you lose or damage your mitts, you can buy new
ones at your local restaurant equipment supply store or from your
local BKI Distributor.
Always wear non-skid shoes when working around the fryer or any
other equipment that uses shortening. Never wear loose clothing
such as neckties or scarves while operating your fryer. Keep loose
hair tied back or in a hair net while operating your fryer.
Always wear appropriate personal protection equipment during the
filtering process to guard against possible injury from hot oil.
Always wear appropriate personal protection equipment during the
boil-out process to guard against possible injury from hot cleaning
solution.
4
Automatic Lift Fryer Introduction
Keep this manual with the Equipment
This manual is an important part of your equipment. Always keep it
near for easy access.
If you need to replace this manual, contact:
BKI
Technical Services Department
P.O. Box 80400
Simpsonville, S.C. 29680-0400
Or call toll free: 1-800-927-6887
Outside the U.S., call 864-963-3471
Protect Children
Keep children away from this equipment. Children may not
understand that this equipment is dangerous for them and others.
NEVER allow children to play near or operate your equipment.
Keep Safety Labels Clean and in Good
Condition
Do not remove or cover any safety labels on your equipment. Keep
all safety labels clean and in good condition. Replace any damaged
or missing safety labels. Refer to the Safety Labels section for
illustration and location of safety labels on this unit.
If you need a new safety label, obtain the number of the specific
label illustrated on page 7, then contact:
BKI
Technical Services Department
P.O. Box 80400
Simpsonville, S.C. 29680-0400
Or call toll free: 1-800-927-6887
Outside the U.S., call 864-963-3471
5
Automatic Lift Fryer Introduction
Be Prepared for Emergencies
Be prepared for fires, injuries, or other emergencies.
Keep a first aid kit and a fire extinguisher near the equipment. You
must use a 40-pound Type BC fire extinguisher and keep it within
25 feet of your equipment.
Keep emergency numbers for doctors, ambulance services,
hospitals, and the fire department near your telephone.
Know your responsibilities as an Employer
• Make certain your employees know how to operate the
equipment.
• Make certain your employees are aware of the safety
precautions on the equipment and in this manual.
• Make certain that you have thoroughly trained your employees
about operating the equipment safely.
• Make certain the equipment is in proper working condition. If you
make unauthorized modifications to the equipment, you will
reduce the function and safety of the equipment.
6
Automatic Lift Fryer Introduction
Safety Labels
7
Automatic Lift Fryer Installation
Installation
Serious injury, equipment damage or death could result if attempting to install
this fryer yourself. Ensure that an authorized BKI service agent installs the fryer.
Unpacking and Handling
It is the owners’ responsibility to file all freight claims with the delivering truck line. Inspect all cartons and
crates for damage as soon as they arrive. If damage to cartons or crates is found, or if a shortage is
found, note this on the bill of lading (all copies) prior to signing.
If damage is found when the equipment is opened, immediately call the delivering truck line and follow up
the call with a written report indicating concealed damage to your shipment. Ask for an immediate
inspection of your concealed damage item. Packaging material MUST be retained to show the inspector
from the truck line.
Assembly and Mounting
1. Remove all packing materials from the interior and exterior of the fryer.
2. Lock the casters so the fryer does not move. Every time the fryer is used, make sure the casters
are locked so the fryer cannot move.
3. Clean the fryer pot before filling with shortening.
4. Place the DRAIN handle in the CLOSED position.
Wiring
Electrocution, equipment failure or property damage could result if an unlicensed
electrician performs the electrical installation. Ensure that a licensed electrician
perform the electrical installation in accordance with local codes, or in the absence
of local codes, with the National Electrical Code, ANSI NFPA 70-20XX.
This unit, when installed by an authorized BKI service agent, must be wired for use in accordance with all
applicable local, state, and federal codes. For specific electrical requirements and conne ction s refer to the
wiring diagram attached to the unit or provided in the Service Manual.
8
Automatic Lift Fryer Installation
Initial Test and Adjustment
1. Fill pot with shortening to about one inch below the mark.
Use only high-quality shortening that has low moisture content, a high smoke
point and no additives.
Overfilling the fryer pot with shortening could lead to serious injury. Ensure that
the fryer pot is filled with shortening only to the fill mark when shortening is hot.
Do not use any shortening other than what is specified in this manual and do not
overfill the fryer pot.
2. Place the FILTER/OFF/FRY switch to the FRY position. The shortening should begin to heat and
begin to reach the fill mark inside the pot. Add more shortening as required to reach the fill mark.
Refer to the troubleshooting section if this does not occur.
9
Automatic Lift Fryer Maintenance
Maintenance
Failure to comply with the maintenance below could result in a serious accident.
Your fryer will need periodic maintenance and servicing. We strongly suggest
that you use only a service company that is authorized by BKI to do this work.
Scheduled Maintenance
Use the following table to help manage scheduled maintenance activities.
FREQUENCY PERFORMED BY PART ACTIVITY
Daily
Weekly
Every 6 Months
User Filter Pad Replace filter pad. Refer to the
procedure in this manual.
User Filter system Filter the shortening using the
procedure in this manual.
User Fryer Pot Perform the boil-out procedure
in this manual.
Authorized BKI
service agent
Connections,
Fittings
Check for leakage while oil is
pumping.
10
Automatic Lift Fryer Maintenance
Filtering Procedure
Breaded foods require frequent filtering. An excess amount of breading left in the fryer pot will reduce the
life of the shortening. We recommend the shortening be filtered after every three frying cycle loads. If the
shortening starts to show signs of foaming or has a bad taste, do not use it. The fryer pot should be
cleaned before refilling with new shortening. Best results for filtering are obtained while the shortening is
hot. You should filter at the end of every business day.
Always wear appropriate personal protection equipment during the filtering
process to guard against possible injury from hot oil.
1. Set the FILTER/OFF/FRY switch to OFF.
2. Make certain that the filter pad is clean and not torn.
IMPORTANT: Make certain the vat cover is properly positioned underneath the drain valve.
Also make certain the filter vat and filter screen is under the main drain valve before starting
the filtering process.
3. Move the DRAIN handle slowly to the OPEN position so that the shortening starts to flow
evenly. This is to prevent excessive splashing of hot shortening.
4. When the pot is empty, place the DRAIN handle in the CLOSED position.
To refill the pot automatically, use the steps below:
• Place the FILL handle to the THRU POT position.
• Position the FILTER/OFF/FRY switch to FILTER and shortening will automatically pump
into the pot.
• Let the filter continue to pump the shortening until the fill mark in the fryer pot is reached
or until air starts bubbling through the shortening.
• As soon as air is seen in the shortening, first place the FILL handle to the THRU HOSE
position then position the FILTER/OFF/FRY switch to OFF to prevent shortening
degradation and prevent the filter pump and lines from filling up with shortening.
• Add new shortening if the fill mark has not been reached.
To refill the pot through the rinse hose, use the steps below:
• Make certain that the rinse hose is connected to rinse hose connector.
• Holding the hose by the handle, place hose nozzle inside the pot.
• Position the FILL lever in the THRU HOSE position.
• Position the FILTER/OFF/FRY switch to FILTER and shortening will automatically pump
into the pot.
• Let the filter continue to pump the shortening until the fill mark in the fryer pot is reached
or until air starts bubbling through the shortening.
11
Automatic Lift Fryer Maintenance
• As soon as air is seen in the shortening, position the FILTER/OFF/FRY switch to OFF to
prevent shortening degradation.
• Add new shortening if the fill mark has not been reached.
Boil-Out Procedure
Boil-outs remove microscopic particles o f carbon that build up on the walls of the fryer pot. To avoid
eventual carbon build-up, off flavors, and shortening breakdown, boil-outs should be done once a week
on each fryer following these procedures.
Always wear appropriate personal protection equipment during the boil-out
process to guard against possible injury from hot cleaning solution.
1. Position the FILTER/OFF/FRY switch to OFF.
2. Drain the clean shortening into an adequate storage container. (Allow the shortening to cool to
room temperature before attempting storage.)
3. CLOSE the drain and fill the fryer pot with HOT water to the shortening level fill mark. Do not
overfill by allowing the water level higher than the fill mark.
4. Add ½ cup (4 ounces) of BKI cleaner.
5. Wash down the inside of the pot with the pot brush to loosen the sediment.
6. Set the temperature of the solution as follows:
• BLF-75F – Position the FILTER/OFF/FRY switch to ON. Set the thermostat to a temperature
of 190º F.
• BLF-75FC – Position the FILTER/OFF/FRY switch to ON. Press PROG (program), type
1733, and press ENTER. The fryer pot will heat to a temperature of 190º F during the CLEAN
cycle to allow the CLEAN function to be performed. NOTE: The fryer pot must be below 255º
F to enter the CLEAN mode.
7. Bring the cleaning solution to a rolling boil and maintain the boil for 5 minutes.
8. Place the FILTER/OFF/FRY switch to OFF.
9. Scrub the inside of the fryer pot again.
10. Before draining the cleaning solution, remove the filter bag, screen and pipe connections from
the filter vat. This must be done before draining the cleaning solution. NEVER pump water or
detergent through the filter system.
11. After 15 minutes, slowly open the drain valve. Drain the solution into the filter vat and discard.
12. Rinse the pot with hot water, using the pot brush to remove remaining sediment, drain and
discard.
13. Close the drain and refill the fryer pot with hot water to the proper level.
14. Add approximately 4 to 6 ounces of distilled (white) vinegar to develop a neutralizing solution. Stir
the solution briefly. Leave in the pot for three to five minutes and discard. NOTE: Foaming of
shortening after boil-outs is caused by failure to follow proper neutralizing procedures.
12
Automatic Lift Fryer Maintenance
15. Repeat steps 12 through 14 as needed to remove all traces of cleaning solution.
16. Rinse the pot again with Cool water, drain and discard.
Damage to the fryer could result if the fryer pot is not completely dry before filling
with shortening. Refill the fryer pot with shortening ONLY when it is completely
dry.
17. Dry the fryer pot and filter vat COMPLETELY.
18. Close the main drain and fill with new shortening to the proper level.
Filter Pad Replacement
The filter pad must be replaced daily. If the shortening has a milky color when it is pumped into the pot,
the filter pad should be replaced immediately.
If the filter pad is not properly closed, breading crumbs will get through the pad
opening and clog the pump. Ensure that the filter pad is properly closed upon
replacement.
1. Place the filter screen inside the filter pad.
2. Fold the end of the pad and seal with the bag clip.
13
Automatic Lift Fryer
Troubleshooting
Refer to the table below for troubleshooting information.
Problem Cause Possible Solution
Shortening Heating Too
Slowly
Bad thermostat or loose wires Contact an authorized BKI
Weak heating elements or heating
Breading build-up on heating
Filter System Not
Working
Connections not tight Tighten the connections. If
Filter valve not open Contact an authorized BKI
Filter paper on screen clogged with
Motor hums, but does not pump Check for clogged pump. If
Motor and pump coupling worn Contact an authorized BKI
No power to control panel Make sure drain valve is
Computer Hangs
Low voltage or improper voltage Contact an authorized BKI
service agent for corrective
action.
service agent for corrective
action.
Contact an authorized BKI
elements breaking down or coil on
contactor bad
elements
Uncertain Press the reset button on end of
crumbs
Computer malfunction. Press and hold the Toggle/Clear
service agent for corrective
action.
Clean heating elements. If
problems persist, contact an
authorized BKI service agent for
corrective action.
pump and hi-limit reset button
under control panel. If problems
persist, contact an authorized
BKI service agent for corrective
action.
problems persist, contact an
authorized BKI service agent for
corrective action.
service agent for corrective
action.
Change filter paper. If problems
persist, contact an authorized
BKI service agent for corrective
action.
problems persist, contact an
authorized BKI service agent for
corrective action.
service agent for corrective
action.
completely closed. If problems
persist, contact an authorized
BKI service agent for corrective
action.
button while moving the
FRY/OFF/FILTER switch from
FRY to OFF and back to FRY. If
problems persist, contact an
authorized BKI service agent for
corrective action.
14
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