Hunter TC33 Series User manual

Copyright 2021 Hunter Engineering Company
OPERATION INSTRUCTIONS 7102-M029-00 Rev. 00 (04/2021)
TC33 Series Tire Changer
TC33
TC33M

OWNER INFORMATION
Model Number _____________________________________________________________________
Serial Number _____________________________________________________________________
Date Installed______________________________________________________________________
Service and Parts Representative ______________________________________________________
Phone Number_____________________________________________________________________
Sales Representative________________________________________________________________
Phone Number_____________________________________________________________________
Concept and Procedure Explanation
Safety Precautions Trained Declined
Warning and Caution Labels 
Bead Roller 
Maintenance and Performance Checks Trained Declined
Air Pressure Check 
Checking Arm Calibration to Rims 
Adjustment and Filling of Oiler 
Wheel Clamping Trained Declined
Drop Center Identification 
Standard Wheel 
Reverse Drop Center Wheel 
Large Pilot Hole Wheel 
Bead Loosening Trained Declined
Standard Procedure 
Tire Lubrication 
Demounting Trained Declined
Standard Procedure 
Mounting Trained Declined
Standard Procedure 
Low Profile Wheels 
Matching Tire to Rim Trained Declined
Lubrication, Positioning, and Direction of Rotation 
Inflation Trained Declined
Adjustment of Pre-Set Pressures 
Lubrication and Removal of Valve Core 

Individuals and Date Trained
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________

TC33 Series Tire Changer Operation Instructions Contents •
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CONTENTS
1. GETTING STARTED.......................................................................................1
1.1 Introduction.............................................................................................................1
1.2 For Your Safety.......................................................................................................1
Hazard Definitions..................................................................................................1
IMPORTANT SAFETY INSTRUCTIONS...............................................................2
Decal Placement (TC33)........................................................................................3
Decal Placement (TC33M).....................................................................................5
Electrical.................................................................................................................7
Specific Precautions/Power Source.......................................................................7
Equipment Installation and Service........................................................................7
Equipment Specifications.......................................................................................7
Safety Summary.....................................................................................................8
1.3 Tire Bead Loosening with PowerOut (TC33 model only)........................................9
1.4 Wheel Lift Pedal (TC33 model only) (Optional)......................................................9
1.5 Wheel Rotation Pedal.............................................................................................9
1.6 Air Inflation Pedal....................................................................................................9
1.7 Inflator and Pressure Limiter ..................................................................................9
1.8 Bead Press Arm (Optional)...................................................................................10
1.9 Bead Press Arm With Horizontal Roller (TC33 model only) (Optional)................10
1.10 Command Unit (TC33M model only)..................................................................10
1.11 Equipment Components.....................................................................................11
TC33 ....................................................................................................................11
TC33M .................................................................................................................12
2. BASIC PROCEDURES.................................................................................13
2.1 Side Shovel Bead Loosening (TC33 model only).................................................13
2.2 Placing Wheel on TC............................................................................................14
Wheel Support Plate Height Adjustment..............................................................14
Standard and High Offset Wheels .......................................................................15
Reverse Drop Center Wheels..............................................................................16
Large Pilot Hole Wheels ......................................................................................18
2.3 Roller Bead Loosening (TC33M model only)........................................................19
2.4 Demounting Standard Tires from Rim..................................................................20
2.5 Mounting Standard Tire to Rim.............................................................................22
Precautionary Notes.............................................................................................24
2.6 Mounting Tough, Low Profile Tires.......................................................................25
2.7 Tire Inflation..........................................................................................................26
2.8 Removal of Wheel from TC..................................................................................27
3. ADVANCED PROCEDURES........................................................................28
3.1 Advanced Demounting Procedures......................................................................28
Optional Bead Press Arm.....................................................................................28
Optional Bead Press Arm With Horizontal Roller (TC33 model only)..................29
3.2 Advanced Mounting Procedures...........................................................................30
Optional Bead Press Arm.....................................................................................30
Optional Bead Press Arm With Horizontal Roller (TC33 model only)..................30
3.3 Advanced Bead Loosening Procedures (TC33M model only)..............................31
Bead Loosening Soft Sidewall, Tall Profile Tires .................................................31
Bead Loosening Tough, Low Profile Tires...........................................................32
Bead Loosening “AH” Wheels..............................................................................32
3.4 Advanced Demounting Procedures (TC33M model only)....................................34
Using “HM” Bead Lever and Sleeve Protector.....................................................34
Using Bead Depressor “Tail” (Optional) and Bottom Roller to Demount Upper
Bead without Sleeve Protector.............................................................................34

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•Contents TC33 Series Tire Changer Operation Instructions
Demounting Lower Bead without Sleeve Protector..............................................38
Cylindrical Rims/Bead Loosening and Demounting Lower Bead.........................38
3.5 Advanced Mounting Procedures (TC33M model only).........................................39
Mounting of Stiff Sidewall, Low Profile Tires........................................................39
Removal of Bead Depressor “Tail” (Optional)......................................................41
Mounting Low Profile Tires on Rounded Edged Rims .........................................42
3.6 Mounting Stiff, Low Profile Tires on Rounded Edged Rims Only Using Rollers
(TC33M model only)...................................................................................................43
3.7 Matching/Optimizing of Tire to Rim (TC33M model only).....................................44
4. MAINTENANCE AND CALIBRATION.......................................................... 46
4.1 Maintenance Schedule.........................................................................................46
4.2 Maintenance Replacement Parts .........................................................................47
4.3 Calibrating and Adjusting the Position of the Column...........................................48
4.4 Checking and Adjusting the Bead Rollers............................................................48
4.5 Checking and Adjusting the Position of the Bead Breaker Arm ...........................49

TC33 Series Tire Changer Operation Instructions Getting Started •
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•1
1. GETTING STARTED
1.1 Introduction
This manual provides operation instructions and information required to maintain the
TC series tire changer.
The owner of the TC is solely responsible for arranging technical training. The TC is
to be operated only by qualified trained technicians. Maintaining records of personnel
trained is solely the responsibility of the owner and management.
This manual assumes the technician has already been trained in basic tire changing
procedures.
“References”
This manual assumes that you are already familiar with the basics of tire changing.
The first section provides the basic information to operate the TC. The following
sections contain detailed information about equipment, procedures, and
maintenance. “Italics” are used to refer to specific parts of this manual that provide
additional information or explanation. For example, refer to “Equipment Components,”
page 11-12. These references should be read for additional information to the
instructions being presented.
The owner of the TC is solely responsible for arranging technical training. The TC is
to be operated only by a qualified trained technician. Maintaining records of personnel
trained is solely the responsibility of the owner or management.
1.2 For Your Safety
Hazard Definitions
Watch for these symbols:
CAUTION: Hazards or unsafe practices, which could result in minor
personal injury, or product or property damage.
WARNING: Hazards or unsafe practices, which could result in
severe personal injury or death.
DANGER: Immediate hazards, which will result in severe personal
injury or death.
These symbols identify situations that could be detrimental to your safety and/or
cause equipment damage.

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•Getting Started TC33 Series Tire Changer Operation Instructions
IMPORTANT SAFETY INSTRUCTIONS
WARNING: This machine storesand uses significant volumes of compressed air.
Disconnect compressed air at the source and drain all compressed air
before servicing. Severe injury or death can occur if service is
attempted on a compressed air chamberwhile it is charged.
WARNING: This machine uses high voltage electrical power.Shut down and
unplug the machine at the source before servicing. Severe injury or
death can occur ifservice is attempted on a live electrical circuit.
Read and follow all caution and warning labels affixed to equipment and tools.
Read and understand all instructions before operating this machine.
Misuse of this equipment can cause personal injury and shorten the life of the TC.
To prevent accidents or damage to the TC, use only Hunter recommended procedures
and accessories.
Wear OSHA approved eye protection while operating the TC.
Wear non-slip safety footwear when operating the TC.
Do not wear jewelry or loose clothing when operating the TC.
Wear proper back support when lifting or removing wheel from the TC.
Never stand on the TC.
WARNING: Keep hands and clothing clear of moving parts. Keep hands clear
of upper roller when bead loosening or rotating clamped wheel. Do
not lean or reach over tire when inflating.
WARNING: Do not exceed these pressure limitations:
SUPPLY LINE PRESSURE (from compressor) 175 PSI.
OPERATING PRESSURE (gauge on regulator) 145 PSI.
BEAD SEATING PRESSURE (gauge on hose) 40 PSI.
WARNING: Never mount a tire to a rim that is not the same diameter (e.g., 16
1/2 inch tire mounting on a 16 inch rim).
WARNING: After loss of air line pressure ALWAYS raise the wheel lift pedal to
prevent the wheel lift from rising quickly during first operation.
DANGER: Activate blast inflation nozzle only when seating bead.
CAUTION: Do not hose down or power wash electric tire changers.
Bleed air pressure from system before disconnecting supply line or other pneumatic
components. Air is stored in a reservoir for operation of the blast inflation nozzle. Air
pressure can be bled from the system by pulling up on the knob located on top of the
regulator, and then turning it counterclockwise.
Do not activate the blast inflation nozzle if the tire is not properly clamped.
Do not operate TC with worn rubber or plastic parts.

TC33 Series Tire Changer Operation Instructions Getting Started•
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•3
Wheels equipped with low tire pressure sensors or special tire and rim design may
require certain procedures. Consult manufacturer’s service manuals.
SAVE THESE INSTRUCTIONS
Service and maintain machine regularly as outlined in “Maintenance and Calibration,”
on page 46. For further information contact:
Hunter Engineering Company
11250 Hunter Drive
Bridgeton, Missouri 63044
[phone]
http://www.hunter.com
Decal Placement (TC33)

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•Getting Started TC33 Series Tire Changer Operation Instructions
1 RP6-4221 GROUNDING PLATE
2 RP6-710211210 DECAL-ROTATION DIRECTION
3 RP6-710211220 BEAD BREAKER CONTROL PLATE
4 128-1870-2 DECAL-TC33
5 128-1345-2 DECAL-NEMA L6-20P
6 RP6-999923160 DECAL-WARNING PROP 65
7 RP6-0006 DECAL-AIR PRESSURE
8 128-286-2 DECAL-DANGER AIR BLAST
9 128-287-2 DECAL-WARNING INFLATION
10 128-285-2 DECAL-WARNING PRESSURE LIMITATIONS
11 128-284-2 DECAL-SAFETY INSTRUCTIONS
12 128-501-2 DECAL-MANUAL TIRE BLEED VALVE
13 128-435-2 DECAL-REMOVE CLIP-ON WEIGHTS
14 128-489-2 DECAL-MOUNTING ARM INCLINATION
15 128-504-2 DECAL-DO NOT BREAK BEAD WITH AIR
PRESSURE IN TIRE
16 128-505-2 DECAL-KEEP ARMS AND LEGS CLEAR OF BEAD
BREAKER
17 RP6-4182 DECAL-MOTOR SPECIFICATIONS
18 RP6-4244 DECAL-ROTATING PARTS DANGER
19 RP6-99990758 DECAL-ELECTRICITY DANGER
20 RP6-999915200 DECAL-SERIAL NUMBER
21 RP6-999916311 DECAL-RUBBISH SKIP
22 RP6-1591 DECAL-RED PIPE
23 RP6-999924420 DECAL-KEEP BRACKET FOR OPTIONAL WHEEL
LIFT INSTALLATION
24 RP6-2170 DECAL-MAX. INFLATION PRESSURE RATING
25 128-485-2 DECAL-REVIEW VIDEO BEFORE USING
26 RP6-1541 DECAL-DANGER
27 RP6-2668 DECAL-WHEEL LIFTING DEVICE DANGER
28 RP6-999916880 DECAL-MAX. CAPACITY 80 KG
29 RP6-2166 DECAL-WARNING BEAD BREAKER
30 RP6-999914700 DECAL-BEAD DEPRESSING CONTROLS
31 RP6-2470 DECAL-PUSHBUTTON DATA
32 RP6-999916450 DECAL-LIFTING DEVICE PEDAL

TC33 Series Tire Changer Operation Instructions Getting Started•
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Decal Placement (TC33M)

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•Getting Started TC33 Series Tire Changer Operation Instructions
1 RP6-4221 GROUNDING PLATE
2 RP6-710211210 DECAL-ROTATION DIRECTION
3 RP6-710217670 DECAL-LUBRICATING OIL SPECIFICATIONS
4 RP6-2170 DECAL-MAX. INFLATION PRESSURE RATING
5 128-1345-2 DECAL-NEMA L6-20P
6 RP6-999923160 DECAL-WARNING PROP 65
7 RP6-0006 DECAL-AIR PRESSURE
8 128-286-2 DECAL-DANGER AIR BLAST
9 128-287-2 DECAL-WARNING INFLATION
10 128-285-2 DECAL-WARNING PRESSURE LIMITATIONS
11 128-284-2 DECAL-SAFETY INSTRUCTIONS
12 128-1870-2 DECAL-TC33
13 128-435-2 DECAL-REMOVE CLIP-ON WEIGHTS
14 128-489-2 DECAL-MOUNTING ARM INCLINATION
15 RP6-2166 DECAL-WARNING BEAD BREAKER
16 RP6-999914700 DECAL-BEAD DEPRESSING CONTROLS
17 RP6-4182 DECAL-MOTOR SPECIFICATIONS
18 RP6-4244 DECAL-ROTATING PARTS DANGER
19 RP6-99990758 DECAL-ELECTRICITY DANGER
20 RP6-999915200 DECAL-SERIAL NUMBER
21 RP6-999916311 DECAL-RUBBISH SKIP
22 RP6-1775 DECAL-OIL QUANTITY
23 RP6-1541 DECAL-DANGER
24 128-487-2 DECAL-CAUTION
25 128-488-2 DECAL-ATTENTION
26 128-485-2 DECAL-REVIEW VIDEO BEFORE USING

TC33 Series Tire Changer Operation Instructions Getting Started•
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•7
Electrical
The TC is manufactured to operate at a specific voltage and amperage rating.
Make sure that the appropriate electrical supply circuit is of the same voltage and
amperage ratings as marked on the TC.
WARNING: DO NOT ALTER THE ELECTRICAL PLUG. Plugging the
electrical plug into an unsuitable supply circuit will damage the
equipment.
Make sure that the electrical supply circuit and the appropriate receptacle is installed with
proper grounding.
To prevent the possibility of electrical shock injury or damage to the equipment when
servicing the TC, power must be disconnected by removing the power cord from the
electrical power outlet.
Specific Precautions/Power Source
The TC is intended to operate from a power source that will apply 208-230VAC, 1 phase,
15 amp 50/60 Hz, power cable includes NEMA 20 amp plug, L6-20P, between the supply
conductors of the power cord. The power cord supplied utilizes a twist lock connector,
NEMA L6-20P. This machine must be connected to a 20 amp branch circuit. Please refer
all power source issues to a certified electrician. Refer to “Installation Instructions for TC
Tire Changer.
CAUTION: A protective ground connection, through the grounding
conductor in the power cord, is essential for safe operation.
Use only a power cord that is in good condition.
Equipment Installation and Service
A factory-authorized representative should perform installation.
This equipment contains no user serviceable parts. All repairs must be referred to a
qualified Hunter Service Representative.
Equipment Specifications
Electrical
Voltage: 208-230VAC, 1 phase, 50/60 Hz, power cable includes
NEMA 20 amp plug, L6-20P
Amperage: 15 amperes
Wattage: 3450 watts (peak)
Air
Air Pressure Requirements: 115-175 PSI (8-12.0 bar)
Approximate Air Consumption: 4 CFM (110 Liters/Minute)

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•Getting Started TC33 Series Tire Changer Operation Instructions
Mechanical
Clamping System Rotating
Speed: CW – variable up to 14 rpm CCW – 7rpm
Torque: 867 ft-lbs
Max. Tire Diameter: 50 in.
Max Bead Roller Opening Width: 17 in. (TC33) – 15 in. (TC33M)
Diameter Range: 10-26 in. (TC33) – 12-24 in. (TC33M)
Bead Roller Power; Each Roller: 2645 lbs.
Safety Summary
Explanation of Symbols
These symbols may appear on the equipment.
Alternating current.
Earth ground terminal.
Protective conductor terminal.
l ON (supply) condition.
OFF (supply) condition.
Risk of electrical shock.
Stand-by switch.

TC33 Series Tire Changer Operation Instructions Getting Started•
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•9
1.3 Tire Bead Loosening with PowerOut (TC33 model only)
WARNING: Keep arms and legs from between the bead breaker arm
and the side of the housing.
The bead loosener shovel is controlled by a handle on the shovel itself. Pulling
upward on the handle will insert push the shovel into the tire for bead loosening.
Pushing downward on the handle will pull the shovel back outward under power.
Repeat as necessary to loosen entire bead on both sides of wheel. Use care around
TPMS sensors.
1.4 Wheel Lift Pedal (TC33 model only) (Optional)
Press down on the wheel lift pedal to raise wheel lift. PULL UP THE WHEEL LIFT
PEDAL TO LOWER THE LIFT. When the pedal is released the wheel lift WILL
REMAIN IN POSITION.
1.5 Wheel Rotation Pedal
The right pedal on the front of TC base controls the rotation of the wheel. Refer to
“Equipment Components,” on page 11-12.
Step down on the pedal to rotate the wheel clockwise (variable speed).
Lift the pedal to rotate the wheel counterclockwise (fixed speed).
CAUTION: Keep hands clear of wheel, tire, and rollers during bead
loosening.
1.6 Air Inflation Pedal
The left or the central pedal on the front of TC base is a two-stage design. Refer to
“Equipment Components,” on page 11-12. The pedal controls the air going to the
inflation hose and the blast inflation nozzle.
CAUTION: Keep hands clear of wheel during sealing and seating of
bead.
CAUTION: When operating air inflation hose, do not lean over the tire.
Step down partially on the pedal to inflate tires through inflation hose.
Step down completely on the pedal to activate the blast inflator nozzle to seal tire
beads.
Refer to “2.7” on page 26 for complete inflation operation instructions.
1.7 Inflator and Pressure Limiter
As a safety device, the pressure limiter prevents the operator from using excessive
air pressure to seat the tire bead during tire inflation. Bead seating pressure should
never exceed 40 psi. If tires being mounted require more than 40 psi for inflation
pressure, the tire/wheel assembly should be removed from the tire changer, placed in
an inflation cage, and inflated per manufacturer’s instructions.
While inflating the tire, the pressure gauge will read zero until the inflation pedal is
released. At that time, the gauge will give the correct air pressure reading in the tire.
Refer to “2.7” on page 26 for complete inflation operation instructions.

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•Getting Started TC33 Series Tire Changer Operation Instructions
1.8 Bead Press Arm (Optional)
The bead press arm assists with tire mounting. The bead press arm moves in tandem
with the mount / demount head.
The controls on the bead press arm move the bead press up or down.
Refer to “Equipment Components,” on page 11-12.
1.9 Bead Press Arm With Horizontal Roller (TC33 model only)
(Optional) The bead press arm assists with tire mounting. The bead press arm move in tandem
with the mount/demount head.
The control on the bead press arm move the roller press up or down.
Refer to “Equipment Components,” on page 11-12.
1.10 Command Unit (TC33M model only)
The command unit governs all the movements necessary to complete bead roller
operations. Refer to “Equipment Components,” on page 11-12.
The command unit is used to position the bead roller into the working position.
For proper operation of the command unit, place your hand over controller with index
finger and middle finger over lever buttons. Push and pull the command unit to bring
the rollers to the correct rim diameter.
The command unit consists of 2 levers (A).
The left lever control the lower bead breaker
roller. The right lever control the upper bead
breaker roller.
Each lever has 3 positions:
- The first (1) rest position stops the bead
breaker roller operated in its current position;
- the second (2) held position lowers the upper
bead breaker roller or lifts the lower bead
breaker roller;
- the third (3) held position lifts the upper bead
breaker roller or lowers the lower bead
breaker roller to their rest positions.

TC33 Series Tire Changer Operation Instructions Getting Started•
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•11
1.11 Equipment Components
TC33

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•Getting Started TC33 Series Tire Changer Operation Instructions
TC33M

TC33 Series Tire Changer Operation Instructions Basic Procedures•
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•13
2. BASIC PROCEDURES
2.1 Side Shovel Bead Loosening (TC33 model only)
For bead loosening with rollers, refer to “Roller Bead Loosening,” page 19.
Remove valve stem core and deflate tire completely.
WARNING: All air pressure inside the tire must be removed before
proceeding. Never attempt to loosen the bead until all air
is removed from the tire. Failure to remove all air from
tire may result in injury to operator, or damage to
equipment, tire, or wheel.
Remove all weights from the rim to protect the rim and to extend life of the
mount/demount head.
The lever (1) allows to operate the bead breaker arm cylinder/side shovel. This lever
has two stable positions with hold control: when the handle is lifted, the side shovel is
pushed into the tire for bead loosening (2); when the handle is pressed downward the
side shovel opens outwards.
Press the lever downward to make the side shovel open outwards.
Position the wheel against the side of the TC, between the bead breaker arm and the
housing.
Lift the lever. The bead breaker arm will be pulled toward the TC to loosen the bead.
Press the lever downward again to swing the arm to the open position. Once the arm
has been swung to the open position, release the lever.
If the bead has not completely loosened, rotate the wheel and repeat the bead
loosening procedure at a different area on the tire.
Turn the wheel and loosen the opposite bead using the same procedure.

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•Basic Procedures TC33 Series Tire Changer Operation Instructions
2.2 Placing Wheel on TC
Wheel Support Plate Height Adjustment
The wheel support plate on the TC is height adjustable to allow a wide range of
wheels to be serviced.
Use the highest setting for most high offset wheels.
Standard wheels typically use the middle height.
Use the lowest height for most reverse drop-center wheels.
To adjust center support height, pull the knob outwards on center support and raise or
lower center support table to desired height.