Original TWC-401 NIC Tyre Changer

LAUNCH Tyre Changer (TWC-401NIC)

General Notice
Trademark Information
Other product names used herein are for
is a registered trademark of LAUNCH identification purposes only and may be
TECH. CO., LTD. (LAUNCH for short) in China and trademarks of their respective owners.
other countries. All other LAUNCH trademarks, LAUNCH disclaims any and all rights in
service marks, domain names, logos, and company those marks.
names referred to in this manual are either
trademarks, registered trademarks, service marks,
domain names, logos, company names of or are
otherwise the property of LAUNCH or its affiliates. In
countries where any of the LAUNCH trademarks,
service marks, domain names, logos and company
names are not registered, LAUNCH claims other
rights associated with unregistered trademarks,
service marks, domain names, logos, and company
names. Other products or company names referred to
in this manual may be trademarks of their respective
owners. You may not use any trademark, service
mark, domain name, logo, or company name of
LAUNCH or any third party without permission from
the owner of the applicable trademark, service mark,
domain name, logo, or company name. You may
contact LAUNCH by visiting Launch at
http://www.cnlaunch.com, or writing to LAUNCH,
Launch industrial Park, North WuHe Avenue,
Banxuegang industrial Park, Longgang District,
ShenZhen,Guangdong Province, P.R.China. to
request written permission to use Materials on this
manual for purposes or for all other questions relating
to this manual.

Copyright Information
Copyright © 2000 by LAUNCH TECH. CO., LTD. All
rights reserved. No part of this publication may be
reproduced, stored in a retrieval system, or
transmitted in any form or by any means, electronic,
mechanical, photocopying, recording or otherwise,
without the prior written permission of LAUNCH. The
information contained herein is designed only for the
use of this unit. LAUNCH is not responsible for any
use of this information as applied to other units.

Neither LAUNCH nor its affiliates shall be liable to the
purchaser of this unit or third parties for damages,
losses, costs, or expenses incurred by purchaser or
third parties as a result of: accident, misuse, or abuse
of this unit, or unauthorized modifications, repairs, or
alterations to this unit, or failure to strictly comply with
LAUNCH operating and maintenance instructions.

LAUNCH shall not be liable for any damages or
problems arising from the use of any options or any
consumable products other than those designated as
Original LAUNCH Products or LAUNCH Approved
Products by LAUNCH.

i


Safety Precautions

Note
This manual is a necessary part of the product.
Please read carefully.
Keep the manual for later use when maintaining
the machine.
This machine can only be used for the
designated purposes. Never use it for any
other purpose.
The manufacturer is not held responsible for the
damage incurred by improper use or use other
than the intended purpose.

Precautions
The equipment can only be operated by qualified
personnel with special training. Modification to
any components or parts, or use the machine for
other purpose without either obtaining the
agreement from the producer, or observing the
requirement of the instructions may lead to direct
or indirect damage to the equipment.
TWC-401NIC should be installed on the stable
ground.
Keep the back panel 0.5M away from the wall for
good ventilation. Enough room should be left on
both sides of TWC-401NIC for convenient
operation.
Do not put TWC-401NIC in a place with high
temperature or moisture, or near the heating
system, water tap, air-humidifier or chimney.
Do not put TWC-401NIC near the window with
sunlight. Protect the unit with a curtain or
shield if necessary.
Avoid lots of dust, ammonia, alcohol, thinner or
spraying binder.
People who are no operating the machines
should be kept away when it is used.
Use appropriate equipment and tools, protective
and safety equipment, including eyeglasses,
earplugs and working boots.
Pay special attention to the marks on the
machine.
Do not touch or approach the moving parts by
hand during operating.
Do not remove the safety device or keep it from
working properly.
Use #2 lithium lubricants (grease) only within the
safety range. Refer the appendix for the safety
data.
Before moving the tyre changer, contact
maintenance personnel.

ii


Description of Safety Signs

Caution should be taken
To prevent accidents from
when separating the tyre
occurring, make sure to
from rim. The bead breaker
keep hands and other body
shoe will move rapidly and
parts away when fastening
forcefully when the pedal is
the mount/demount head or
depressed. Keep body and
when the turntable is
materials away from the
running.
work area.
.
If the clamping cylinder is
Be careful when connecting
open during clamping,
and disconnecting air
squeezing on hands can be
source Bleed the air in the
resulted. Remember to
cylinder completely when
keep hands away from the
maintaining the air pipes to
inside of the tyre when
prevent accidents from
clamping.
occurring.

High voltage power!
Don’t keep hands or other
Dangerous!
body parts between the
clamping jaw and clamping
rim.

Before inflating check if the
This is where the
clamping rim and the tyre
compressed air gun is
match each other, and if
connected with the air pipe.
they are in good condition.
Connect the compressed air
Any negligence may result
gun with the air connector.
in fatal explosion. Similar
accident may occur if the
inflating air exceeds the
The pressure of the
allowed pressure.
compressed air should not
exceed 10bar.

MAX 10bar

iii


The Position of Safety Signs

-

Please change the safety signs if it gets blurred or lost.
When one or more safety signs get lost, don’t operate the machine.
The safety signs must be kept within the sight of the operator.

iv


Table of Contents

General Information………………………………1
Usage… …………………………….….………1
Features ………………………………..………1
Specifications…………………………..………1
Applicable Range…………………………...….1
Working Conditions……………………..…..…1
Main Structure…………………………………2
Operation………..………………………..……3
Principles ………………………………..…….3
Demounting Tyre …………………….…….…3
Mounting Tyre ………………………….…..…5
Inflating Tyre …………………………….…… 6
Trouble shooting ………………………..……7
Maintenance………………..……………....….8
Storing and Scrapping…………..…………...9
TWC-401NIC Oil Safety Data……….….…10
TWC-401NIC Electrical Diagram….……11
TWC-401NIC Air Passage Diagram……14

v


Applicable Range
General Information Max. wheel diameter: 960mm(38″)
Max. rim width: 360mm(14″)
Rim clamping diameter(outer): 10″－17″
Usage Rim clamping diameter(inner): 13″－20″

TWC-401NIC is used for demounting, mounting and
inflating tyres of small vehicles. It features simple Working conditions
operation and high reliability. In addition, it can also be a Working temperature:-40℃－45℃
great help in car repair garage and tyre dealers.
Transport/store temperature:- 40℃－55℃
Humidity: 30－95%
Features Altitude: less than 1000m
The equipment can be used for different purposes of
demounting, mounting and inflating tyres.
The steel mount/demount is cast from excellent alloy
material with special shape and durable performance.
The supplied plastic mount/demount head with the
equipment is made from special engineering plastic
that has enough intensity and not damage the tyre
and rim.
The two clamping cylinder ensures accurate central
alignment, so that the tyres can be held tightly.
The layout of the pedals gives convenience to the
operating personnel.
The bead breaker shoe can be adjusted to match
tyres with different widths.
The tyre is conveniently located.

Specifications
Dimensions
Maximum height: 1765mm (69″)
Length: 1020mm (40″)
Width: 810mm (32″)

Weight
Net weight: 212kg

Electric specifications
Voltage to choose:
A C110V(±5%) 60Hz（±1Hz）
AC220V(±5%) 50Hz（±1Hz）
AC230V(±5%) 60Hz（±1Hz）
Power: 1.1kW
Phase: Single
RPM of turntable: 8/min

Air supply
Working pressure: 8－10 bar
Bead breaker force: 14075N

Noise
Working noise: <70dB(A)

1


Main Structure

Fig.01
The main operating parts are shown in Fig. 01.
A Return spring B Hexagonal column C Hexagonal column D Mount/demount head
locking handle
E Clamping jaw F Turntable H Clamping cylinder I Bead breaker control pedal
control pedal
J Turntable control K Screw handle L Column N Clamping cylinder assembly
pedal
O Hanger P Bead breaker handle Q Bead breaker arm S Bead breaker shoe

T Tyre lever V Air Pressure Regulator, Gauge and Lubricator Assembly

2


Accessories provided are shown in Fig.02
001-Tyre lever Pay special attention to rotary direction marked on
002-Gun inflator with a pressure gauge some flanges or tyres.
003-Brush When inflating the tyre, make sure the pressure
increases in an even way. Check the rim as often
as possible.
Fit the tyre on the rim of matched size.
Never ignore the mounting and demounting
requirements of the special wheel.

Demounting Tyre
Fig.02-a Preparing
Deflate the tyre thoroughly.
Remove all the foreign substance and weights from
the rim (Fig. 03).

Fig.02-b

Fig.03
Demounting
Fig.02-c
Note:
Lubricate the bead with a brush dipped in soap
Operation solution before the shoe touches the bead.
Otherwise the tyre bead will be worn (Fig. 04).
Note:
Do not operate the machine before having completing
training and qualified for operating the tyre changer.
Use appropriate equipment, tools and personal
protective equipment, such as eye-glasses, ear-plugs
and working boots, when operating the tyre changer.
Make sure that the power, air sources and the oil level
in the oil cup are in accordance with the
requirements.

Principles Fig.04
To avoid damage when mounting and demounting Place the tyre between the bead breaker shoe and
tyre, especially the alloy ones, use the special tyre rubber pad and keep the shoe between the bead
lever. and rim, about 1cm to the bead (Fig. 05). Depress
For easier demounting and better protection of the pedal I (Fig. 06) to separate the tyre from rim.
tyre and rim, lubricate the area between the rim and Repeat the above steps on other part of the tyre to
tyre bead, where the bead breaker shoe goes in, get the tyre separated thoroughly from the rim.
with industrial lubricant or thick soap solution.
Check for damages (distortions, surface damages,
excessive runout, erosion or overall wear) before
demounting.

3


together, place the wheel on the turntable and
depress pedal H to clamp.
In case of outward clamping (Fig. 08), enlarge the
jaws outward, place the wheel on the turntable
and depress pedal H to clamp.
Pull back the swing arm and turn the handle of the
screw (12) to put the hexagonal column in working
position (Fig.09), and keep a distance of 1~2mm
from the mount/demount head (Fig.10), and then
lock the hexagonal column with locking handle.

Note:
Fig.05 The angle of the mount/demount head has been
adjusted by manufacturer according to standard rim
(15"). Re-adjustment may be necessary to prevent
scratching the tyre when the rim is extremely large or
small.

Fig.06
Place the wheel on the turntable. For the asymmetric
deep groove rim, keep the narrow rim upward.
Depress pedal H (Fig.07) to the end to clamp the rim
Note: Different types of clamping can be chosen in Fig.09
accordance with different rims.

Fig.10
Fig.07 Lift the tyre bead onto the mount/ demount head with
tyre lever (Fig. 11). To make it easy, press the tyre
opposite to the mount/demount head. After settling it
down in the rim groove, depress Pedal J（Fig.12）
lightly to turn the turntable clockwise until the rim is
separated. To avoid damage to the tube when there
is one, it is advisable to place the air inflating valve
about 10cm (Fig.13) away from the mount/ demount
head.

Caution:
In case the demounting is hindered, stop the machine
immediately. Lift up the pedal J (Fig.12) to turn the
Fig.08 turntable counter-clockwise to clear away the
hindrance.
In case of inward clamping, shrink the jaws
4


Caution:
Keep hands and the rest of human body away from
the moving parts of the machine. Never wear necklace,
bracelet or loose clothes when operating the machine
as it may cause danger!

Mounting tyre

Note:
Check the size of tyre and rim to see if they match
Fig.11 each other.
Clamp the rim tightly in the same way as demounting
tyre.
Use lubricant such as thick soap solution on the tyre
and the rim.
Put the bead on the rim with the left side upward,
and pull back the mount/ demount head to the work
position (Fig.15)

Fig.12

Fig.15
Check the coordination of mount/demount head and
rim. Readjust if necessary.
Adjust relative position between the tyre and the
mount/demount head to make the tyre bead cross
the mount/demount head. At the end of the
mount/demount head, the tyre bead should be
Fig.13
placed on the mount/demount head (Fig.16A). At the
beginning of the mount/demount head, the tyre bead
should be placed under the ball protuberance of the
mount/demount head (Fig.16B).

Fig.14
If there is tube in the tyre, remove it.
Lift the lower tyre bead after removing the tube from
the tyre so that the rim at the relative side enters the Fig.16
groove(Fig.14). Depress pedal H (Fig.07) to loose
Press down the central part of the tyre. Depress the
the jaw and take the rim off to complete the
pedal J (Fig.12) to turn the turntable clockwise,
demounting
5


making the lower tyre bead fall into the rim groove Inflating can be highly dangerous. Take precautions
completely. and pay close attention to the procedures. Check if
If a tube needs to be installed in the tyre, check first the compressed air is well connected before inflating.
for the possible damages. Round it onto the rim.
Make sure to keep the tube in the right position Inflating procedures are shown in Fig.19. The machine is
throughout the mounting process. equipped with a gauge to read the pressure in the tyre.
To install the upper tyre bead, place the tyre well and Loose the wheel on the turntable.
readjust position of the tyre bead (same as mount of Connect the outlet of the gun to the air inflation
the lower tyre bead in Fig.17. Press down the tyre valve.
opposite to the mount/demount head to the rim Slowly press the switch on the inflating gun for
groove (Fig.18)). several times during inflation to make sure that the
reading on pressure gauge meets the
manufacturer’s specifications. The pressure
should not exceed 3.5 bar.
If the pressure exceeds the limit, press the button on
the gun inflator so that the pressure goes down to
what is required.

Caution: Danger of explosion!
The safety procedures should be closely followed.
Review and abide by the following instructions.
Otherwise serious injury or death can be resulted.
The manufacturer shall not be held responsible for
Fig.17 any possible accident when the safety procedures are
not followed.
Carefully check the dimensions of rim and
tyre to see if they match each other. Check
and make sure that the tyre is not worn or
damaged before inflation.
When a high pressure is required, remove the
tyre from the tyre changer and resume the
inflation in a special protective hood.
Be careful when inflating the tyre. Keep
hands and the rest of human body away from
tyre

Fig.18
Depress the pedal J (Fig.12) to turn the turntable
while keeping pressing on the tyre. When only
10~15cm is left, slow down to avoid damage of the
tyre bead. Stop the motor if there is any indication
for damage. Lift the pedal J and turn the turntable
counter-clockwise. Try again when the tyre is back
to the original shape.

Note:
.
It is not necessary to move the handle of the
screw every time if the size of rim matches the
Fig.19
tyre. Just move the swing arm.
In the process of operation, keep head and
hands away from the area between the tyre and
the swing arm to avoid injury.

Inflating tyre

Danger!!

6


Trouble Shooting
Symptom Cause Solution
Turntable can turn only in Power switch is damaged. Replace the power switch.
one direction.
Turntable doesn’t turn. Belt is damaged. Replace the belt.
Power switch is damaged. Replace the power switch.
There is problem with Check power wire of motor. If the motor
motor. is damaged, replace it.
Belt is loose. Tension the belt.
Turntable can not lock the Jaws are worn. Replace the jaws.
rim tightly. Cylinder pad of the Clean or replace the pad.
turntable is damaged.
Bead breaker shoe does not Return spring is damaged. Replace the return spring.
work.
Pedal can not be restored to Return spring is damaged. Replace the return spring.
its original position.
There is abnormal noise at The fixing screw is loose. Tighten the fixing screw.
the moving part. There is foreign matter Get rid of the foreign matter.
inside.
The motor does not turn or The moving part is stuck. Get rid of the stuck point.
the output torque is not The capacitor is failed. Replace the capacitor.
enough. The voltage is too low. Pause and wait for the device to be
The circuit is open. restored.
Repair.
Cylinder is weak in output. There is air leakage. Strengthen the muffler.
Mechanical hindrance is Fix the mechanical problem.
causing the problem. Replace the compressor.
The pressure of the
compressed air is not high
enough.
Air leakage is found. Air hose is damaged. Replace the related part.
The outlet of the air valve
is damaged.
The gasket cement is Add gasket cement.
gone.

7


Maintenance

Note:
Only the specialized technician can do the
maintenance. Before any maintenance is performed,
disconnect the power and keep the plug within the
sight of the maintenance personnel. and shut off
compressed air, push the air valve switch to “Off”
position and depress pedal 16 for 3 or 4 times to bleed
the residual compressed air in the machine.

To keep the tyre change in good condition and to Fig.21
prolong the work life, it is necessary to do regular
maintenance according to the instructions on the user’s
manual. Otherwise, the normal operation and
reliability of the machine will be affected, or personal
injury would be caused.
Keep the machine and working area clean and
prevent dust or foreign matter from entering the
moving parts.
Keep the hexagonal column clean and dry (clean
with diesel as in Fig. 20).
Keep the swing arm clean and lubricate it
periodically so that it can move expectably.
Weekly clean the turntable, jaws, guideways (Fig. Fig.22
21); clean and lubricate the column.
Weekly lubricate the faying surface between moving
parts and rubbing surface with lithium lubricant.
Check the oil level in the sprayer regularly. If the oil
level does not reach the second line, fill SAE20 (Fig.
22).
Clear away the condensed material in the water
separator around the sprayer regularly.
Regularly check and adjust the tension of the belt.
Check all connecting parts and bolts regularly and
tighten them if necessary.
Note: About 15 days after starting to use the
equipment, fasten the jaw and positioning bolts A (Fig.
23). Fig.23

Fig.20
8


Storing and Scrapping
Storing
When the equipment needs to be stored for a long time:
Disconnect the power and compressed air.
Lubricate all the parts: slide block and groove.
Empty all the oil/liquid cups.
Cover the equipment with plastic shield.

Scrapping
When the equipment can no longer be used, disconnect
the power and compressed air and dispose in
accordance with the local regulations.

9


TWC-401NIC Oil Safety Data

No. 2 lithium lubricant
Item Quality Index
Cone penetration (1/10mm) 278
Drop point ℃ 185
Corrosion (T2 Copper, 100℃, 24h) No change in the copper
Wire separator (100℃, 22h)% 4
Evaporation (100℃, 22h)% 2
Oxidation stability (99℃, 100h) 0.2
Anti-erosion Grade I
Foreign substance (microscopic method)
Above 10 μm Lower than 5000
Relative viscosity (-15℃,10s-1), /Pa·s) Lower than 800
Drip loss Lower than 8

SAE20 Lubricant
Item Quality Index
Density (15℃) 0.880
Flash point ℃ 213
Freezing point ℃ -21
Viscosity 40℃ 66.2
Viscosity 100℃ 8.2
Viscosity index 95

10

LAUNCH

AC110V
60Hz

This protective ciruit should be
fulfiled by the customer
QF1 Remarks
protective current ：
No. Name Model
2
2.5mm 40A QF1 air-break switch rated current 40A EN60947-2
current：19A
industrial power Mennekes socket 536#
SOCKET EN60309
socket 32A/2P+E/230V/IP44

industrial power plug
maximum current ：32A
1 3 5 7 9 11

11
2 4 6 8 1O 12
No. Name Model Remarks
SW1 switch 32A EN60947-3
TWC-401NIC Electrical Diagram

industrial power plug Mennekes plug 274#
PLUG EN60309
32A/2P+E/230V/IP44

U1 U2 U3 U4 V1 Z1

Remarks：if the motor movement is contrary to the right
turning,change the phase wire(Z1 and V1).
Tyre Changer (TWC-401NIC)

LAUNCH

AC230V
60Hz

QF1 No. Name Model Remarks
protective current：
1.5mm2 20A QF1 air-break switch rated current 20A EN60947-2
current：9.1A industrial power Mennekes socket 536#
SOCKET EN60309

maximum current：32A

1 3 5 7 9 11

12
2 4 6 8 1O 12

PLUG EN60309
32A/2P+E/230V/IP44
U1 U2 U3 U4 V1 Z1

turning,change the phase wire(Z1 and V1).

LAUNCH

AC220V
50HZ

QF1 No. Name Model Remarks
protective current ：
1.5mm 2 20A QF1 air-break switch rated current 20A EN60947-2
current：9.1A industrial power Mennekes socket 536#
SOCKET EN60309

maximum current ：32A
1 3 5 7 9 11

13
2 4 6 8 1O 12

PLUG EN60309
32A/2P+E/230V/IP44
U1 Z1 Z2 U2

turning,change the phase wire(Z1 and Z2).


Jaw clamping Bead breaking

TWC-401NIC Air Passage Diagram

14


to be in warranty, it will be repaired or replaced at no
Warranty charge. If the unit is determined to be out of warranty,
it will be repaired for a nominal service charge plus
return freight. Send the unit pre-paid to:
THIS WARRANTY IS EXPRESSLY LIMITED TO
PERSONS WHO PURCHASE LAUNCH PRODUCTS Attn: Overseas Department
FOR PURPOSES OF RESALE OR USE IN THE LAUNCH TECH. CO., LTD.
ORDINARY COURSE OF THE BUYER’S Launch industrial Park,
BUSINESS. North WuHe Avenue,
Banxuegang industrial Park,
LAUNCH electronic product is warranted against Longgang District,
defects in materials and workmanship for one year ShenZhen,Guangdong Province,
(12 months) from date of delivery to the user. This P.R.China.
warranty does not cover any part that has been
abused, altered, used for a purpose other than for
which it was intended, or used in a manner
inconsistent with instructions regarding use. The
exclusive remedy for any automotive meter found to
be defective is repair or replacement, and LAUNCH
shall not be liable for any consequential or incidental
damages. Final determination of defects shall be
made by LAUNCH in accordance with procedures
established by LAUNCH. No agent, employee, or
representative of LAUNCH has any authority to bind
LAUNCH to any affirmation, representation, or
warranty concerning LAUNCH automotive meters,
except as stated herein.

Disclaimer

THE ABOVE WARRANTY IS IN LIEU OF ANY
OTHER WARRANTY, EXPRESSED OR IMPLIED,
INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE.

Order Information

Replaceable and optional parts can be ordered
directly from your LAUNCH authorized tool supplier.
Your order should include the following information:
1. Quantity
2. Part number
3. Item description

Customer Service

If you have any questions on the operation of the unit,
please contact us:
Tel: 86-755-84528860
Fax: 86-755-84528872
E-mail: overseasales@cnlaunch.com.

If your unit requires repair service, return it to the
manufacturer with a copy of the sales receipt and a
note describing the problem. If the unit is determined

Original TWC-401 NIC Tyre Changer

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