Launch TWC-412NIC User manual

*Read these instructions
before placing unit in ser-
vice.
**Keep these and other ma-
terials with the unit in a
binder near the machine for
easy reference by supervi-
sors and operators.
***You will need the man-
ual for the information of
the machine, such as safety
warning and precautions,
assembly, operating, main-
tenance and parts list / as-
sembly diagrams.
****Keep your invoice
with this manual for future
reference. Manufacturer
shall not be liable for any
injury to persons on damage
to thins caused by failure to
comply with these regula-
tions and can cancel war-
ranty coverage.
Operation Manual
Installation, Operation, Maintenance
TWC-412NIC
Tire Changer

1. Technical Data
Model AB
Electric Requirements See the manufacturer’s serial plate
Max. Wheel Diameter 39” 42”
Max. Wheel Width 13” 14”
Outside Clamping—Rim sizes 10” ~ 18” 11” ~ 21”
Inside Clamping—Rim sizes 12” ~ 20” 13”~ 23”
Max Inflation Pressure 116PSI (8 Bar)
Bead Breaker Force 5500Lbs (2500kgs)
Max Rotating Torque (Turntable) 795 ft.lbs (1078N.m)
Noise Level <70db
Overall Dimensions (L x W x H) 38.2” x30.3” x37.4”
(97x77x95cm)
38.2” x30.3” x37.4”
(97x77x100cm)
Shipping Weight 220kg 230kg
Voltage 0.9 ~ 1.1 of nominal voltage
Frequency 0.98~1.02 of nominal frequency
Ambient Temperature 5~40°C
Operation Humidity 30~95%
Installation altitude NOT exceed 1000m
Transport / Storage temperature -25~55°C
2.ASSEMBLY INSTRUCTION
Fig.1
2-1 Transport
When transporting the machine it must be handle with a forklift truck with the forks
Positioned as show as in the Fig.1.
2-2 Unpacking
When unpacking, check to make sure all parts shown on the spare parts List/Assembly. Diagrams are included. If any parts are missing or broken,
please call the manufacturer or the dealer as soon as possible.

1Bead Breaker Pedal
2Jaw clamp Pedal
3Reverse Pedal
4Turntable
5Jaw
6Mounting head
7Hexagonal shaft
8Swing arm
9Locking handle
10 Column
11 FRL
12 Shovel
13 Rubber wheel support
14 STL
1
2
3
4
5
6
8
10
11
14
13
12
9
7

(4.1) Optional Upgrade Accessories

5-4 Workplace Requirements
1. The machine’s workplace requires 1400(width)×1685(depth) with at least 500 mm of clear space from each wall. Place the tire changer on a firm, smooth
and unbroken floor. Drill four holes in the floor corresponding to the holes pre-drilled in the base of the machine. Holes should be 80mm deep. Its diameter is
10mm. Then insert the expansion
Plugs and lighten with the 10mm spanner.
Fig.3
5-5 Assembly Procedure
1. Temporarily remove the four mounting bolts, washers, and Nuts located at the top / rear of the body assembly.
2. With assistance, set the column on the body assembly, and align the four mounting holes in which the bolts, washers, and nuts were moved.
3. Firmly wrench tightens the column with the four mounting bolt, washers, and nuts mentioned in step 1 above.
5-6 Pneumatic Link Up
1. Push the clamping pedal down completely to ensure that the clamping jaws do not open unexpectedly.
2. Connect the air hose to the union on bottom of the vertical column, which is as a tanker.
3. Connect the inflation gun, if it is to be installed, to its connector.
4. Connect the tire changer to a compressed air network. (Suggested working pressure is 8 bar) using the connector which is on the air-water separator located
right side of the base assembly.
5-7 Electric Link up
1. Before making any electric link up, check to be certain that the main voltage corresponds to what is stamped on the voltage tag.
2. It is absolutely essential that the system is equipped with a good grounding circuit.
3. The machine must be connected to a power supply line circuit bracket set for 30mA.
5.OPERATING INSTRUCTION
5-1 To Preliminary Operating Tests
1. Connect the tire changer to its air and electrical supply sources, and allow adequate time for the compressed air system to reach the recommended 110-PSI.
2. Depress the Reverse Pedal (3,Fig2) down, the turntable should turn in a clockwise direction. Pull the pedal up and the turntable should turn anticlockwise.
3. Press the bead breaker pedal (1,Fig2)to activate the paddle. When the pedal is released. The pedal should return to its original position.
4. Press the jaw clamp pedal (2,Fig.2) once to open the four jaws. Press the pedal again to close the jaws.

(6) Operating Instructions
This unit must be properly operated and properly main-
tained to help avoid accidents that could damage the unit and
injure the operator or bystanders. This section of the Operat-
ing Instructions manual review basic operations and use of
controls. These instructions should be reviewed with all
employees before they are allowed to work with the machine.
Keep these instructions near the machine for easy reference.
(7) Bead Loosening and Demounting
This machine may operate differently from machines you
have previously operated. Practice with a regular steel
wheel and tire combination to familiarize yourself with
the machine’s operation and function.
A. Remember to remove all weights from both sides of
the wheel. Weights left on backside of wheel may cause the
wheel to be clamped unleveled. This may result in the com-
bination mount/demount head contacting the rim causing
scratches. On alloy wheels, always rotate the wheel one turn
after setting the mounting head to insure proper wheel
chucking.
B. Always review with the owner any nicks and
scratches on expensive wheel and tire combinations prior to
servicing.
C. Review the custom and special wheel section of this
manual prior to servicing custom or special tire/wheel com-
binations.
Loosening the beads on a partially or fully inflated tire is
unsafe and causes excess movement and friction against
the bumper pads and excessive wear on pivots. Deflate
the tire completely to prolong the life of your machine.
1. Deflate the tire completely by removing the valve core
from the valve stem (figure 1). Be cautious and do not smoke
as a flammable gas could have been introduced into the tire
at some time.
Tires are always installed and removed from the rim’s
narrow side.
D. Always loosen the bead on the narrow side of the
wheel’s drop center first (tire removed in figure 2 for clarity).
Figure 2 - Determine Narrow Side of Wheel
Figure 1 - Remove Valve Core to Deflate Tire
E. The clamps on the table top may extend beyond the
table top itself. To avoid damaging the clamps, move them
to their full inward position before positioning a tire for bead
loosening.
F. Use extra care in positioning the bead loosener shoe
on larger wheels/tires, and on alloy wheels. Make sure the
shoe rests next to but not on the rim, and not on the tire
sidewall.
2. Pull the bead loosener shoe away from the machine and
roll wheel into position. The valve stem should be in the 2
o’clock position to accommodate a possible asymmetric
safety hump type rim. Position the bead loosener shoe
against the tire next to, but not on, the rim. Press the bead
loosener foot pedal to actuate the shoe and loosen the bead.
It may be necessary
to loosen the bead in multiple locations around the tire
(figure 3).
3. Turn the wheel around and repeat loosening procedure
on the other side of the wheel (figure 4). This should be the
long side of the drop center (figure 2).
Figure 3 - Position Tire and Bead Loosener Shoe

G. It will be easier to outside clamp the wheel to the
table top if the long side of the rim is loosened last.
4. Apply tire manufacturer’s approved rubber lubricant
liberally to entire circumference of both tire beads after
loosening (figure 5).
5. Determine the mounting side of the wheel. The mounting
side is the narrow side of the drop center. See figure 2 for
more information on the drop center.
6. Place tire/wheel assembly on table top with mounting
side up (figure 6). Use the clamp control pedal to move the
clamps inward (push pedal down) or outward (toggle pedal
up). Clamp steel wheels from the inside (clamps push out-
ward against wheel). Clamp mag and custom wheels from
the outside (clamps push inward against the outside rim
edge). Refer to the Custom and Special Wheels section.
7. Move the swing arm into position. Pull the locking handle
forward to release the slide. Push down on the top of the
vertical slide to move the demount head into contact with the
rim edge. Push the locking handle back and lock the slide into
place (figure 7).
Figure 7 - Position
Mount/Demount
Tool
8. The mount/demount head should be in contact with the rim
edge. Turn the swing arm adjusting knob to move the mount
demount head away from the rim 1/8 to 1/4 inch (figure 8).
9. Check metal head positioning. Mount/demount metal
head should be positioned with 3/16 to 1/8 inch clearance
between the top of the rim edge and the bottom of the head,
and 1/8 to 1/4 inch clearance between the rim edge and the
head roller. This clearance will be maintained as long as the
locking handle and adjustment knob are not changed. The
operator may swing the arm out of the way and back into
place again without needing to reposition the head (when
changing a like set of wheels) (figure 9).
Figure 4 - Position Tire and Bead Loosener Shoe With Wheel
Turned Around
Figure 5 - Apply Rubber Lubricant to Tire Beads
Figure 6 - Place Tire/Wheel Assembly on Table top
Figure 9 - Proper (Metal) Mount/Demount Head Position

H. The tool clearance may change with machine use and
should be inspected often. Failure to maintain the proper
clearance may result in damage to the wheel rim and/or tire.
J. Normal table top rotation for demounting is clockwise.
Depress the table top pedal to rotate this direction. To rotate
the table top counterclockwise, lift the pedal up with your toe.
K. Table top rotation can be stopped at any time by re-
moving your foot from the rotation pedal.
At times during the mounting and demounting pro-
cedure, the bead lifting tool may encounter resistance and
can be thrown. Keep one hand firmly on the tool to avoid
possible tool disconnect. Use the reversing feature to back
out of jam-ups. A thrown tool can cause injury.
10. Insert the smooth curved end of the bead lifting tool over
the forward end of the demount head and below the top bead of
the tire. Lift the bead up and over the knob on the Mounting
head (figure 10). Also, note the valve stem position to the
Mounting head. Use your free hand to press down on the tire
opposite the Mounting head to allow the bead to utilize the
drop center area of the rim, this position reduces stresses in the
bead and allows an easier bead lift.
Figure 10 - Insert Bead Lifting Tool
11. Push the bead lifting tool down towards the wheel to lift
the tire bead up and over the knob portion of the demount head.
Hold the tool and bead in this position (figure 11).
Figure 11 - Lift Bead Over Demount Head
12. Depress the table top pedal to rotate the wheel. The
Mounting head will guide the tire bead up and over the edge
of the wheel. Continue rotation until the upper bead is de-
mounted.
L. Push down on the tire across from the demount head
during table top rotation to utilize the drop center area of the
wheel. This reduces the tensional force on the top or first
bead during demount (figure 10).
Figure 12 - Demounting Lower Bead
13. Lift and hold the tire at an angle so that the lower bead
is resting in the drop center directly across from the de-
mount head, and is loose below the demount head (figure
12). Insert the smooth curved end of the bead lifting tool
down over the forward end of the mount/demount tool and
below the lower bead. Lift the bead up and over the knob
on the demount head (figure 13).
Figure 13 - Guide Lower Bead Over Tool Head
14. Depress the table top pedal to rotate the wheel. The
demount head will guide the bead up and over the edge of
the wheel. Continue rotation until lower bead is de-
mounted.
M. With tube-type tires, demount the upper bead and
remove the tube before demounting the lower bead.

(8) Mounting
This information must be read and followed carefully to
prevent accidents and injuries during mounting.
Attempts to force a bead seat on mismatched tires and
wheels can cause the tire to violently explode, causing
serious personal injury or death to operator and/or
bystanders.
Check tire and wheel carefully before mounting. Make
sure the tire bead diameter and wheel diameter match
exactly. Consult the Tire Guide and/or Rubber Manu-
facturer's Association for approved rim widths for tire
sizes.
Never mount a damaged tire. Never mount a tire on a
rusty or damaged wheel. Damaged tires and/or wheels
may explode.
When in doubt do not mount
Never mount a tire and wheel handed to you by anyone
without checking both tire and wheel for damage and to
be certain the sizes match. Do not let untrained persons
operate tire changer and keep bystanders out of service
area.
Forcing the tire onto the rim can cause bead damage.
If you damage the tire bead during mounting, STOP!,
remove tire and mark it as damaged. Do not mount a
damaged tire.
1. Before any mounting, inspect tire for damage and
verify size match between tire and wheel (fig. 14).
Figure 14 - Verify Size Match Between Tire and Wheel
2. Inspect wheel closely for damage. Clean the
wheel and remove any light corrosion or rubber residue
(figure 15). Do not attempt to service a heavily corroded
wheel, damaged wheel, or bent wheel.
Figure 15 - Inspect and Clean the Wheel
3. Inspect valve stem and replace if necessary. Next
lubricate tire beads liberally with tire manufacturer’s
approved rubber lubricant (figure 16).
Figure 16 - Lubricate Tire Beads Liberally

4. Place tire over wheel and move swing arm into position
making sure the valve stem is at the 9 o’clock position in
front of bead lock. Position tire so that lower bead is above
the rear extension of the mount/demount tool and below the
front knob (figure 17).
Figure 17 - Position Tire Against (Mount/Demount Tool)
5. Depress table top pedal and rotate wheel to mount lower
bead. Use drop center of wheel by forcing down on tire just
ahead of the mounting tool, and follow as tire rotates. Rotate
table top until lower bead is mounted.
6. For top bead installation, rotate the table top until the valve
stem is directly across from the mount head. Lift the upper
bead up and over the rear of the mount head. With your left
hand press down on the tire between the mount head and the
valve stem to hold the tire in the drop center. Depress table top
pedal and rotate tire until bead is mounted. Be careful to en-
sure bead stays in the rim drop center in the area ahead of
Mounting head (figure 18).
Figure 18 - Mounting Top Bead
N. If table top rotation stalls, reverse the table top mo-
mentarily until tire bead is again loose on the wheel. Reposi-
tion tire on Mounting head, make sure bead is correctly posi-
tioned in drop center of the wheel; then attempt mounting
again.
P. For low profile or stiff sidewall tires, it may be ad-
vantageous to use the bead lifting tool to initially hold the
upper bead down in the drop center.
R. For tube type tires, mount lower bead first, move
swing arm out, install tube, and then mount upper bead.
(9) Inflation
Tire inflation is performed in three steps: BEAD SEAL,
BEAD SEAT, and INFLATION. These steps are ex-
plained in detail on page 12. Read the explanation of each
step and understand them thoroughly before proceeding.
The inflation pedal, located at the rear of the left side of the
machine, controls the flow of air through theinflation hose,
and has three positions. Note: The clip-on chuck on the end
of the hose should always be an open/freeflow style with all
parts in proper working order.
Position 1 - Tire Pressure –With the inflation hose
attached to the tire valve and the pedal in this position, the
air gauge will register the air pressure in the tire. Whenever
your foot is removed from the pedal, it will return to this
position.
Position 2 - Tire Inflation –This is the first activated
position. With the inflation hose attached to the tire valve
and the pedal in this position, line pressure is allowed to
flow through the valve system and into the tire for inflation.
Correct tire pressure is not indicated on the gauge in this
position.
Position 3 - Bead Sealing –This is the second and last
activated position. With the inflation hose attached to the
tire valve and the pedal in this position, line pressure is
allowed to flow through the valve and to the airflate bead
seal jets on the table top for bead sealing.
1. If the rim has been clamped from the outside for
tire mounting, release the clamps, lift the tire, and move
the clamps to the center of the table top.
Note the Inflation Pedal Positions (See Diagram)

(10) Bead Sealing
1. Position valve stem in front of operator and connect the in-
flation hose with the clip-on chuck. Hold tire up against upper
edge of the wheel. Be sure tire’s top bead does not cover the
bottom of the valve stem (figure 19).
Figure 19 - Lift Tire Upwards for Bead Sealing
2. Depress inflation pedal to position 2 and hold about one
second to begin air flow through tire valve, then depress
pedal to position 3 and hold briefly —less than one full
second. The blast of air from the jets will expand tire and
seal the beads.
3. Release the inflation pedal and allow it to return to posi-
tion 1. Verify that both beads are completely sealed to the
wheel. Repeat these steps if beads have not sealed. It may
be necessary to wait a few seconds for the air storage tank
pressure to recover before attempting again.
1. Once tire pressure is indicated on the air gauge (inflation
pedal in position 1; foot removed from pedal), continue to
inject air into the tire (inflation pedal position 2) in short
intervals. Check the pressure frequently. Stand back during
bead seat. Keep hands, arms, and entire body away from tire
during this procedure (figure 20). Tire beads should move
outward and “pop” into their bead seat position as pressure
inside the tire increases. If this does not happen, a problem
exists. Investigate carefully.
Use of bead sealing jets without a tire in place can cause
dirt and debris to be blown into the air with enough force
to injure operator and/or bystander. Do not use the bead
sealing control position to inflate a tire.
S. This unit is equipped with a pressure limiter to assist
the operator with proper tire inflation. When the inflation
pedal is held in position 2, the pressure limiter cycles the
machine between position 2 (inflation) and position 1 (at rest,
no airflow to tire). This cycling helps to prevent over infla-
tion of the tire. Tires can still be over inflated and explode
with the use of this pressure limiter if all of the instructions in
this manual are not followed completely. The pressure lim-
iter will keep most car and light truck tires from inflating
beyond 60 PSI (smaller tires may reach higher pressures). It
is the operator's responsibility to follow all instructions and
to control inflation pressure as specified in these instructions.
Check the function of the pressure limiter regularly and
maintain it according to the instructions provided in this
manual for safe and proper operation. Do not tamper with or
attempt to adjust the pressure limiter. Tires requiring infla-
tion beyond 60 PSI should be inflated in a safety cage.
T. If tire and wheel are properly lubricated and operator
cannot achieve bead seal after three or four attempts, the
valve core may be removed from the valve stem to allow
more air flow into the tire to assist with bead seal. After
bead seal is achieved, remove the clip-on chuck and rein-
stall the valve core. Reattach the clip-on chuck after core
is installed.
Figure 20 - Stand Back during Bead Seat

(11) Stages of Inflation on a Conventional Tire and Rim
Review these descriptions and diagrams carefully. Refer to them as necessary during bead sealing, bead seating, and inflation to
verify that you are proceeding properly and safely.
Bead Sealing
Bead sealing is the process of capturing air pressure between the tire and the rim. The tire will usually contain about 1/2 to 2 PSI
at initial bead seal.
Bead Seating
Bead seating usually occurs on the long tapered side of the wheel first and the shorter side last. Bead seating will usually require
at least 7 PSI in the tire. 40 PSI is the maximum safe pressure at this stage regardless of tire operating pressure. Most European
import cars and many aftermarket alloy wheels are very tight and can be difficult to bead seat. Also note that asymmetrical hump
and run-flat tires are extremely difficult to bead seat. Follow tire manufacturer’s recommended procedure for bead seating.
Inflation
After the beads are seated, the tire is ready to be inflated. Do not inflate the tire above the manufacturer’s recommended pressure
as stamped on the tire sidewall. The typical inflation pressure for automobile tires is between 24 and 45 PSI. Light truck inflation
pressure typically covers a wider range.

DAS ARM INSTRUCTION MANUAL
1. GENERAL
The DAS has been designed as a tire changer accessory to help the operator to mount the tire on the rim or to demount it.
The use of this device is limited to that specified in this manual. Any other use is improper and therefore not authorized. Be-
fore beginning any kind of work on or with this machine, carefully read and understand the contents of these operating in-
structions.
We shall not be liable for any injury to persons or damage to things caused by improper use of this machine.
Please keep this manual handy for consulting.
TECHNICAL PARAMETERS
SAFETY REGULATIONS
The operator must be a well –trained professional personnel.
This device could only function when work together with our tire changer.
We won’t responsible for any unauthorized modifications.
INSTALLATIONS
NOTICE:
The installation of this auxiliary device should be done by professional personnel.
Before any assemblies，turn off the power of both electricity and compressed air.
TRANSPORTAION
Move the machine with a forklift truck as illustrated in Fig-1
UNPACKING
Remove the packaging carefully and check the machine，if there are any damages or defects，please contact
with us or with the dealer timely.
Please keep the packaging out of the children’s reach.
Please keep the packaging for possible future needs.
Working Pressure 8~10 bar
Net Weight 40kg
Noise Level <70dB
Fig.1

WORKPLACE REQUIREMENTS
maximum machine space requirements and minimum distance of 500mm from walls.
ASSEMBLY
The following steps show how to install the DAS ARM
1) Disconnect the tire changer from the electric power source and the compressed air circuit.
2) See Fig 3 and 4 for pulling the mounting seat 1 and 2 together and screw them tight of DAS ARM
installation.
3) Finally, connect the air hose.
Fig.
3
Fig.3 Fig.4
Fig.2

LAYOUT OF FUNCTIONAL PARTS
Fig-5 shows functional members of the DAS ARM
1-mounting block
2-swing arm D2
3-Valve control
4-swing arm D1
5-mounting seat 2
6-mounting panel
7-mounting seat 1
8-201 A / B swing arm
9-mounting head
10-bead roller
11-201 A/ B vertical column
12-DAS Swing Arm
13-Valve Control
6 SPECIFECATION OF CONTROL VALVE
Controlling the control valve level could attain the rise or decline of the tool holding arms.
TRIAL OPERATIONS
The DAS ARM must connect with air compressor， and 8 bar air pressure is desirable.
SAFETY REGULATIONS
WARNING:
Unreadable or missing warning labels must be replaced immediately.
Operations are not permitted when one or more labels are missed.
It is not allowed to prevent the view of the operator to see the labels when running the machine.
It’s reasonable to set up some labels as Fig.6 shows.
Fig.5
Fig.6

OPERATIONS
The DAS ARM has been designed to facilitate the operations of wheel locking and mounting/demounting
the tire on or from the rim.
9.1 CLAMPING THE TIRE
Correctly follow this manual，release the beads both side of the tire. It’s
more forceful to use the DAS ARM. Clamping the tire from outside is recom-
mended. （Plastic protections are available Fig-7）.
1—Depress the corresponding pedal to open the jaws，and turn the spindle
to its non-working position.
2—Lay the wheel onto the turntable，depress the corresponding pedal to
close or open the jaws for the clamping of the rim.
9.2 DEMOUNTING THE TIRE
1. Firstly break and loosen the beads if it is necessary.
Loosen the locking nut to lower the pressing roller，make sure the
roller is above the tire and not touching it.
Turn the control lever to bottom，lower the roller holding arm to press
the tire with pressing roller. Depress the corresponding pedal to turn
the turntable to loosen the bead. Turn the turntable repeatedly if it is
necessary.（Fig-8）
NOTICE:
Before any operations, lubricate the bead of the wheel.
After loosen the bead, more depress the roller holding arm and begin the next demounting.
2. Demount the upper bead.
Fig.7
Fig.8

Pull down the mounting head closed to rim, but not
touch the rim. See pictures Fig. 9.
Pull down the mounting block and closed to mount-
ing head. Press down the bead. Using a Tire lever take
the tire flap top over the mounting head.
Turn the table clockwise to demount a bead.
Finally, using the tire lever take the bottom of tire
flap and bring it on the mounting head.
Turn the table until the bead is out of the rim.

MOUNT TIRES
Pull up the bead up of the rim. Pull down the
mounting head closed to rim.
Turn the table until the bead press down closed
to rim flange
Using a bead roller and mounting block press
down the tire flap under the rim flange.
Turn the table until the tire flap is under the rim
flange
Finally, pull out the mounting head and DAS
ARM. Fill up the air into tire, then remove the tire
from tire changer.
Phenomena Switch level is not flexible
Analysis
1) Disconnected with compressed air
2) Air hose is folded or broken
3) Valve is broken
Solution
1) Connect with the compressor according to the manual
2) Inspect the air hose，replace the broken hose and joint
3) Please contact with the department of after sale
10 TROUBLE SHOOTING AND MAINTENANCE