Vulcan-Hart MF50 User manual

- NOTICE -
This Manual is prepared for the use of trained Vulcan Service
Technicians and should not be used by those not properly
qualified. If you have attended a Vulcan Service School for this
product, you may be qualified to perform all the procedures
described in this manual.
This manual is not intended to be all encompassing. If you have
not attended aVulcan ServiceSchool forthisproduct, you should
read, in its entirety, the repair procedure you wish to perform to
determine if you have the necessary tools, instruments and skills
required to perform the procedure. Procedures for which you do
not have the necessary tools, instruments and skills should be
performed by a trained Vulcan Service Technician.
Reproduction or other use of this Manual, without the express
written consent of Vulcan-Hart, is prohibited.
SERVICE MANUAL
MF50
MF85
MOBILE FILTERS
MODEL ML
MF50
MF85 52065 52093
A product of VULCAN-HART LOUISVILLE, KY 40201-0696
Form 24599 (11/97)

MOBILE FILTER
2
TABLE OF CONTENTS
GENERAL............................................................................. 3
Introduction ........................................................................ 3
Cleaning .......................................................................... 3
Tools ............................................................................. 3
ControlLocation..................................................................... 3
REMOVALANDREPLACEMENTOFPARTS ................................................. 3
Motor/switchCover .................................................................. 3
Switch ............................................................................ 4
HeaterTube........................................................................ 4
Motor/Pump....................................................................... 5
SERVICEPROCEDURESANDADJUSTMENTS ............................................... 5
Pump Clean-out ..................................................................... 5
MotorReset........................................................................ 6
HeatingElementTest ................................................................ 6
ELECTRICALOPERATION ............................................................... 6
Component Function ................................................................. 6
WiringDiagram ..................................................................... 7
Schematic ......................................................................... 7
TROUBLESHOOTING ................................................................... 8
© Vulcan 1997

MOBILE FILTER - GENERAL
3
GENERAL
INTRODUCTION
• Mobile filters are used with fryers equipped with
the Filter Ready option or Battery Inter-plumb
Systems.
• Use 1/3 HP pump motor which is rated at 5.6
gal/min.
• The model 50 can be used with 3 and 4 burner
fryers and can handle up to 50 pounds of frying
compound.
• The model 85 can be used with 5 burner fryers
and can handle up to 85 pounds of frying
compound.
CLEANING
Cleaning instructions can be found in the
“INSTRUCTION MANUAL”.
CAUTION: Do not run water or cleaning
compound through the pump.
TOOLS
• Standard set of hand tools
• VOM with AC current tester (Any VOM with a
sensitivity of at least 20,000 ohms per volt can
be used.)
CONTROL LOCATION
SPECIFICATIONS
Model Volts Amps
Motor Amps Heater Width Height* Length
50 120 5.0 .625 12” 16½” 31”
85 120 5.0 .625 16” 16
I
”32 ”
* Height measured with quick connect in raised position.
REMOVAL AND REPLACEMENT OF PARTS
MOTOR/SWITCH COVER
WARNING: HOT OIL AND PARTS CAN CAUSE
BURNS. USE CARE WHEN SERVICING THE
FILTER.
WARNING: UNPLUG UNIT BEFORE SERVICING.
1. Empty the oil from tank and remove the filter.
2. Remove the wheels from the motor end of the
filter.
3. Remove the screws that secure the cover.

MOBILE FILTER - REMOVAL AND REPLACEMENT OF PARTS
4
NOTE: The short screw is used on the right
bracket behind the wheel. The long screws will
interfere with the wheel.
4. Remove the switch cover assembly from the
motor cover.
5. Disconnect the power cord lead wires from the
switch.
6. Remove the screw that secures the ground
wires to the motor cover.
7. Reverse procedure to install.
SWITCH
WARNING: HOT OIL AND PARTS CAN CAUSE
BURNS. USE CARE WHEN SERVICING THE
FILTER.
WARNING: UNPLUG UNIT BEFORE SERVICING.
1. Empty the oil from tank and remove the filter.
2. Remove the motor/switch cover as outlined
under “MOTOR/SWITCH COVER”.
NOTE: Only remove the motor/switch cover
until you can disconnect the lead wires at the
switch.
3. Disconnect the lead wires from the switch.
NOTE: When installing the lead wires, the
heater leads are toward the rear of the unit and
the motor leads are toward the front.
4. Remove the switch boot and knurled nut from
the switch stem.
5. Remove the switch from the switch cover.
6. Reverse procedure to install.
HEATER TUBE
WARNING: HOT OIL AND PARTS CAN CAUSE
BURNS. USE CARE WHEN SERVICING THE
FILTER.
WARNING: UNPLUG UNIT BEFORE SERVICING.
1. Empty the oil from tank and remove the filter.
2. Remove the heater tube cover from the bottom
of the filter tank.
3. Remove the motor/heater cover as outlined
under “MOTOR/HEATER COVER”.
NOTE: You only have to remove the
motor/switch cover far enough to disconnect
the lead wires to the heater and to route the
replacement heater lead wires under the motor.
4. Disconnect the lead wires to the heater.
5. Disconnect the heater tube at the tank fitting
and at the pump inlet.
6. Reverse procedures to assemble.

MOBILE FILTER - SERVICE PROCEDURES AND ADJUSTMENTS
5
MOTOR / PUMP
WARNING: HOT OIL AND PARTS CAN CAUSE
BURNS. USE CARE WHEN SERVICING THE
FILTER.
WARNING: UNPLUG UNIT BEFORE SERVICING.
1. Empty the oil from tank and remove the filter.
2. Remove the motor/switch cover as outlined
under “MOTOR/SWITCH COVER”.
3. Disconnect the heater tube at the pump inlet
and loosen the heater tube at the tank.
4. Remove the right bracket to access the motor
mounting bolts.
5. Remove the pump from the from the pump
base.
6. Disconnect the lead wires at the motor.
7. Reverse the procedure to install.
SERVICE PROCEDURES AND ADJUSTMENTS
WARNING: CERTAIN PROCEDURES IN THIS SECTION REQUIRE ELECTRICAL TEST OR
MEASUREMENTS WHILE THE POWER IS APPLIED TO THE MACHINE. EXERCISE EXTREME CAUTION AT
ALL TIMES. IF TEST POINTS ARE NOT EASILY ACCESSIBLE, DISCONNECT POWER, ATTACH TEST
EQUIPMENT AND REAPPLY POWER TO TEST.
PUMP CLEAN-OUT
WARNING: HOT OIL AND PARTS CAN CAUSE
BURNS. USE CARE WHEN SERVICING THE
FILTER.
WARNING: UNPLUG UNIT BEFORE SERVICING.
1. Empty the oil from tank and remove the filter.
2. Remove the heater tube cover.
3. Loosen the heater tube at the tank and
disconnect the heater tube at the pump inlet.
4. Remove the screws that secure the pump to
the motor and the screws that hold the pump
together.

MOBILE FILTER - ELECTRICAL OPERATION
6
5. Separate the castings one piece at a time,
being careful not to damage the “O”rings
between the castings.
NOTE: Only remove the first two castings.
6. Clean the passageways.
7. Assemble the pump, making sure the “O”rings
are installed in the groove.
8. Reverse procedure to install.
MOTOR RESET
1. Turn the switch to the off position.
2. Press the reset button.
3. Turn the switch to the pump position.
HEATING ELEMENT TEST
1. Access the heaters leads.
2. Verify the voltage to the heater.
3. Check amp reading to the heater.
NOTE: values ±10%
.625 amp
4. WARNING: UNPLUG UNIT BEFORE
SERVICING.
5. Disconnect the heater lead wires and check the
resistance (cold) of the heater.
NOTE: values +10% / -5%
192 ohms
ELECTRICAL OPERATION
COMPONENT FUNCTION
Motor ............... Turnspump.
Switch .............. 3positionswitchthatdirectspowertothemotorand to the heater tube.
Heater Tube .......... Heatstube between inlet of pump and tank.

MOBILE FILTER - ELECTRICAL OPERATION
7
WIRING DIAGRAM
SCHEMATIC

MOBILE FILTER - TROUBLESHOOTING
TROUBLESHOOTING
SYMPTOM CAUSES
Motor will not run. 1. Unit unplugged.
2. Main circuit breaker open.
3. Switch in incorrect position or a malfunction.
4. Motor needs reset.
5. Wiring problem.
6. Motor malfunction.
Will not pump, motor runs. 1. Filter plugged.
2. Heater tube plugged.
3. Pump malfunction.
Heater tube does not heat. 1. Unit unplugged.
2. Main circuit breaker open.
3. Switch in incorrect position or a malfunction.
4. Heater malfunction.
5. Wiring problem.
FORM 24599 (11/97) Printed in USA