TMG LC889NV User manual

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Dear customers,
Very pleased that you will purchase and use the tire changer produced by our company
We are the company with reputation of quality. We sincerely wish to produce quality goods under the
ISO9001Quaality system and get the EU CE certificate to help you promote your business.
Carefully read this operational manual before installation and use this operation manual. And also keep it with
care for future reference.
WARNING
This instruction manual is the important part of the product.
Please read it carefully and keep it properly.
This machine is only applied to mount, demount and inflate the tire in the specified scope and
not for any other purpose.
The manufacturer will not be responsible for the damage or injury caused for the operation not
properly and out of the range.

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NOTE
This machine should be operated by the special trained qualified personnel. When operating, the
unauthorized personnel will be kept far away from the machine.
Please note the safety label stuck on the machine.
Operators should wear safety protective facilities such as working suit, protective glasses, and
eye plug and safety shoes. Keep your hands and body from the movable parts as possible as
you can. Necklace, bracelet and loosen clothing may cause dangerous to the operators.
Tire changer should be installed and fixed on the flat and solid floor. The more than 0.5m of
distance from the rear and lateral side of the machine to the wall can guarantee the perfect air
flow and enough operation space.
Do not place the machine in the site of high temperature, high humidity, and dust with flammable
and corrosion gas.
Without the permission from the manufacturer, any change on the machine parts will cause
injury/damage to the machine/operator.
Pay attention that the tire changer should be operated under the specified voltage and air
pressure.
If you want to move the tire changer, you should under the guidance of the professional service
personnel.

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SAFTTY LABEL INSTRUCTION
Do not stand behind the
vertical column to avoid
hurting people when tilt
back.
electrical shock！
Do not reach any part of
your
body under the
demount tool.
When breaking bead, the
bead breaking blade will
quickly move leftwards.
Note: when press the
tire, the opened clamp
cylinder may injury the
hand of the operator.
Remember, do not touch
the side wear the
goggle wall of the tire.
When clamping the rim,
do not reach your hand
or other parts of the body
in between the clamp &
the rim.
Must make sure the wheel
was clamped firmly when
use the quick inflation.
Do not wear loose clothing,
long hair or jewelry.
Keep hands clear of all
pinch points.

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SAFETY LABEL POSITION DIAGRAM
�Pay attention to keep the safety labels complete. When it is not clear of missing, you should change
the new label.
�You should let the operators see the safety labels clearly and understand the meaning of the label.

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CONTENTS
CHAPTER 1 BRIEF INTRODUCTION
1.1 BRIEF INTRODUCTION
1.2 EQUIPMENT OVERALL DIMENSION
1.3 TECHNICAL PARAMETER
1.4 SCOPE OF APPLICATION
1.5 WORK ENVIRONMENT
CHAPTER 2 BASIC CONSTRUCTION AND OPERATIONAL PARTS
CHAPTER 3 INSTALLATION AND CALIBRATION
3.1 UNPACKING
3.2 INSTALLATION OF THE PARTS DETACHED
3.3 AIR TEST
CHAPTER 4 DEMOUNT/MOUNT
4.1 BASIC PRINCIPLE
4.2 DEMOUNT TIRE
4.3 MOUNT TIRE
4.4 INFLATION
CHAPTER 5 REPAIR AND MAINTENANCE
CHAPTER 6 TRANSPORTATION
CHAPTER 7 ELECTRICAL AND PNEUMATIC PRINCIPLE DIAGRAM
CHAPTER 8 COMMON TROUBLESHOOTING

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CHAPTER 1 BRIEF INTRODUCTION
1.1 brief introduction
889NV tire changer is the tire changer featured with tilt column, Italy lever-less technic and
horizontal arm, suitable to mount, demount and inflate all types of car tire with tube and tubeless.
The operation is easy, convenient and safety. It is the necessary equipment for the auto service
shop and tire shop. 889NV can also be equipped with the assist arm, making it easier and more
efficient to mount/demount low profile, hard and RSC tires easier. For the kinds of optional assist
arm, please consult the local dealers.
There’s two basic model in this series: LC889NV – regular model
GT889NV – with quick inflation
1.2 overall dimension and weight
Model L max（mm）W max（mm）H max（mm）N/W kg
LC889NV 1850 1350 2100 290
GT889NV 1850 1350 2100 305
1.3 technical parameter
Work pressure: 8-10bar
Motor parameter: choose the motor with different parameter according to customer’s requirement.
50Hz/60Hz, 0.75-1.1KW, 110-380V
Turntable speed: 6.5rpm
Working Noise: <70dB
1.4 Scope of application

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Model Max.
wheel diameter
Max.
wheel width
Rim diameter
(outward clamp)
Rim diameter
(inward clamp)
LC889NV
GT889NV
1100mm
(43″)
331mm
(13″)
1st gear 11″～22″
2nd gear 12″～23″
3rd gear 13″～24″
1st gear 13″～24″
2nd gear 14″～25"
3rd gear 15″～26″
Like showing in FIG1, the model 887N/GT887N machine equips the adjustable turntable. The default
setting is at the second gear (12″～23″ & 14″～25") when leaves factory. The operator can adjust the
different gear according to the FIG1 showing in order to mount and demount kinds of rims. (Note: the
FIG1 shows the outward clamp range and must change the four clamp at the same time when change
the gear).
1.5 working environment requirement
Environment temperature: 0℃~45℃; Relative humidity: 30~95%; Max. Altitude: 1000M; without dust and
without gas easy to explosive and rusty.The space around machine is not less than indicated in Fig2.
Forbidden to be used in the place containing the gas flammable!

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Chapter 2 Basic Construction and Operational parts
1 Hexangular shaft 2 Knob 3 lifting cylinder of demounting hook 4 lifting cylinder of hex shaft 5
Handle valve 6 Demounting head 7 Turntable 8 Clamping cylinder 9 Clamping jaw 10
Column tilt pedal 11 Clamp pedal 12 Bead breaker pedal 13 Turntable turning pedal 14
crowbar 15 Breaker blade 16 Pin 17 Bead breaker cylinder 18 adjusting bushing 19
Breaker blade handle 20 Bead breaker arm 21 Air tank 22 control valve of demounting hook
23 vertical column 24 Inflation gauge 25Exhaust valve 26 Air regulator 27 Quick inflation pedal
(Note: 21, 25, 27 only for GT889NV model)

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Chapter 3 Installation and Commission
Carefully read the manual before installation and the change on the parts of the machine without
the permission of the manufacturer can cause the damage to the machine;
Installation and commission person must have some knowledge relating to electrical;
Operator must under the special training and pass the examination;
You must carefully check the equipment list and contact the dealers or our company if you are in doubt;
To ensure the installation and commission complete successfully, please prepare the following common
tools: 2pcs open spanners (10″), I pc socket key, 1pc hexangular spanner, 1pc pliers, 1pc screw, 1pc
hammer and 1pc universal electric meter.
3.1 Open the box
3.1.1 In accordance with the instruction on the package box, open the package box and remove the package
material and check if the machine is sounded and the accessories if completed.
3.1.2 Keep the package material far away from the working site and treat it well.
3.2 installation of the parts detached
3.2.1 Installation of the air tank (ignore this step if the model without air tank or entire machine packing)
Remove the side panel and use 2 pcs M8x20 bolts, flat washer and elastic washer and nut to fix the
air tank in main body of machine. Like the picture fig4.
The exhaust valve (FIG3-25) under air tank needs connect 4 hoses. Two 12mm hoses of them insert
the connectors FIG5-B and FIG5-C randomly. The other two 8mm hoses insert the connectors
FIG5-A and FIG5-D.
3.2.2 Install the air regulator (ignore this step if entire machine packing)
Install the air regulator to the right side of the air tank using 2 pieces of M6x10 screw by 5# Allen key
like FIG6.
After installation air regulator, remove the straight connector which connect the two pcs ofφ8 PU hose

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like FIG7-1 & FIG7-2. (This connector can avoid the PU hose to back into the main body. Connect the
PU hose into the connectors of air regulator like FIG6. (if the machine is without the GT function, just
need to connect the hose like FIG7-1).
3.2.3 Install the bead breaking arm (ignore this step if entire machine packing)
As shown in FIG8, align the installation hole of bead breaking arm (FIG8-1) to the installation hole of
bead breaking arm bracket (FIG8-2). Plug in the pin shaft screw (FIG8-3) and then tighten the lock
nut (FIG8-4).
As shown in Fig9, plug cylinder rod (FIG9-1) into the hole of bead breaking arm slide bush (FIG9-2).
Twist the adjusting device (FIG9-3) onto the end of cylinder rod.
Hang the spring (FIG9-4)like the FIG9.
3.2.4 Installation of the column assembly
Position the column (FIG10-1) at the upper block of
the body (FIG10-2). The surface of the column that
label is stuck on should be forward. Align the
installation hole and plug in the column rotation shaft
(FIG10-3), and use the bolt (FIG10-4) to lock two
sides like FIG10.

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Connect of column with the tilt back cylinder: Align the hole (FIG11-2) at the end of the cylinder rod
and the installation hole at the bottom of the column. Use the 10# Allen key to insert the bolt M12X50
(FIG11-1) to the body upper base like FIG11. Connect the column and the tilt cylinder then fix them
using nuts (FIG11-3). The condition after installation is like FIG12.
Connect the column air hose: insert theφ6 (FIG13-1) into the connector (FIG13-A) behind the body
like FIG13.
Installation of the column protective cover: Position the protective cover (FIG14-1) at the upper block
of column. Align the hole and install it using 4 pcs M6 screws as shown in FIG14.
3.2.5 Connect the inflation gun or inflation gauge.
Take out the inflation gun then connect it (IFG15-1) the open nut (FIG15-2) and tighten it. Hang the
gun to the hook after installation like IFG15.
Install the inflation gauge (FIG16-3): fix it to the installation hole at the side of column using two pcs
M6 screws. Then connect theφ8 hose (FIG16-1) on inflation gauge to the elbow (FIG16-2) on the
machine body back (FIG16).

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3.2.6 Installation of horizontal arm protective cover
Fix the hex bar well when remove the knob to avoid the hex bar sliding down to damage the
machine or people.
First pull out the hoses at both ends of lifting cylinder of hook (FIG17-A, FIG17-B); remove the screws
FIG17-2, 17-3, and 17-4 respectively using the wrench 6#, 5#, 4#. Rotate slightly the connection
board (FIG17-1) to side and install the protective cover (FIG18-1) from hex bar upper end. When
install the cover, need cross the two hoses (FIG18-A) from the cover center hole like IFG18. Then
install the screws which removed in FIG17 separately.

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Fix the protective cover (FGI18-1) to the square bar like FIG19 using 2 pieces of M6x40 screws
(FIG19-1) from both sides. During installation, add the washers (FIG19-2) inside of the protective
cover like FIG20 to avoid damaging the cover.
3.3 Air test:
Column tilt back: Connect the air and press down the lock valve button (FIG3-3) to lock the horizontal
arm. Step down column tilt pedal (FIG3-10) and the column tilt back by 25º. The tilt speed has been
setup before ex-work at about 2 seconds. After longtime of use, the speed will be fast or slow and on
this condition, you can use the speed valve at the heads of the push-out cylinder to adjust. Loose the
nut and turn adjust screw clockwise, the speed will be slow and it will be slow if counterclockwise,
tight the nut after adjust. When the machine out of the factory, the air source fitting has been adjusted
well and if you need to change, you can readjust.
Before the machine out of the factory, the air regulator has been
adjusted well and can be re-adjust if need.
Adjust the pressure: lift-up the adjusting knob (FIG21-B) and
rotate it clockwise, the pressure will raise. Otherwise, decline.
Press down the adjusting knob after adjusting.
Adjust the oil feed: twist the adjusting screw (FIG21-A)
clockwise using the screw driver to slow the dripping speed and
otherwise, quicken it.

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Chapter 4 Demount/Mount
Note: the operator must be trained and qualified then allow to operate the tire changer. Need to
use the proper device and tools, wear the protective clothes, and use the proper safety
precautions, like goggle, earplug, and safety shoe and so on.
4.1 BASIC PRINCIPLE
In order to avoid damage the rim, especially the alloy rim, when mount and demount the ire, must use the
specified crowbar.
In order to facilitate the removal and protection the tire and rim, between the tire and rim, at the position
which the bead break blade insert to, need to lubricate using industrial lubricants or soap water.
For certain types of tires, pay attention to the tire wall and the rotation direction marked on the tire.
The tire size must be suitable for the rim to mount.
Before mount and demount the tire, need to check whether the rim had damage (deformation or surface of
the outside of the rim, rim axial for radial beat is too big, corrosion or overall wear).
In any case, pay attention to the mounting and demounting request of the special tire from the tire
manufacturers.
When inflate the tire, to increase the pressure uniformly and pay attention to the tire edge situation.
The manufacturer suggested that because hard tires are more popular in the market now, assist arms are
required to be equipped with the lever-less tire changer machine to better play the function of the machine
and improve work efficiency.
4.2 Demount tire
Deflate the air in the tire completely and pull out the core. Use the special tool to detach the weight on
the rim. (FIG22)
Place the tire between then bead breaking blade and tire
pressing runner clog (FIG23). Then step down the tire press
pedal (FIG3-12) to detach the rim from the tire. Repeat the
same operation on the other parts of the tire to make the tire
completely detached from the rim.
Can use the adjusting device (FIG24-1) to shift the gear to
suitable for the different thickness tire. Adjust the depth of bead
break blade to avoid bead too deep to damage the tire or rim.

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After bead breaking, step the clamp pedal (FIG3-11) to open the clamps till 3cm-5cm bigger than rim
diameter. Put the wheel onto the turntable and press down the wheel center. Step the clamp pedal to
fix the wheel firmly. If the tire wall is hard and the clamps cannot enter the joint of the rim and tire. The
assist arm can be used for the assistant operation. Align the
press plate to the rim center then press down 2cm-3cm so that
the rim can be smoothly clamped.
Press the control valve (FIG3-5) to the middle position, the
demounting head should fall down to the working position. Make
the demount tool close to the rim of the wheel. The protection
cover and plastic tail cover in the demount head will contact with
the rim edge. If the tire wall is hard, use the press plate of assist
arm to press the tire lop down like FIG26. Then press the control
valve button to lock the horizontal arm. At this time the
demounting head will move slightly away the rim automatically to
separate the demounting head and rim to avoid scratching the
rim like FIG27.
If there has inner tube in tire, in order to avoid damage
the inner tube, the demounting hook should be
operated about 10cm away from the left side of the
valve as shown in FIG28.

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Pull down the control valve (FIG3-22) of demounting hook to make the demounting hook enter the
inner side of tire lip. If the demounting hook does not insert into the inside of tire lip when down to
the bottom, step the rotation pedal to rotate the turntable a little to make the hook insert into the
inside of tire lip like the FIG29. If the tire lip is harder, use the press plate of assist arm to press down
the tire lip so that the hook can insert into the inside of tire lip smoothly.
After the demounting head into the tire lip, pull upward the control valve to lift the tire lip onto
the circular convex part of demounting head like FIG30. At this time, step the rotation pedal to
observe the tire lip and demounting hook, if there’s no abnormality, step down the rotation
pedal to rotate the turntable clockwise to take out the upper side of tire lip.
If the demounting hook cannot lift the tire lip
because of the harder RSC tire during lifting
the tire lip, can press the tire using assist arm.
The pressing block can press down 40-80cm
on the opposite side of the demounting head,
which helps the demounting hook to lift the
tire lip smoothly like FIG31.
If the demount of the tire is jammed, please stop the machine immediately and then lift up the
pedal to let the turntable rotate counterclockwise to remove the resistance!
After separate the upper tire lip, take out the inner tube
if has. Lift the lower tire lip to rim edge. Lower the hook
and take the lower tire lip like FIG32 then step the
rotation pedal to separate the lower side.

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Then step the tilt pedal (FIG3-10) to tilt the column back and
take out the tire like FIG33. Finish the demounting tire
operation.
4.3 Mount tire
Before mount the tire, check that the tire and rim size are the same!
Clean up the oil and rust on the rim and lock the rim on the turntable. Note: the demount groove must
be at upper side to mount. Spread the lubrication liquid or soap liquid around the lip. Tilt the tire
against the rim and keep the front end upwards. Press down the column tilt pedal to make the column
return to the original position. Move the demount head to firmly contacted rim. Position the left of the
lip above the tail of the demount tool and the right under the hump of the demount tool (FIG34). Press
down the right side of the tire as hard as you can and step turntable pedal to rotate the turntable
clockwise to guide the lip into the tire detach slot completely.
If there is tube, raise up the demount tool and put in the tube and position the core.
In the same way, Position the left of the lip above the tail of the demount tool and the right under the
hump of the demount tool. Press hard the right side tire wall. If there’s assist arm, need position the
fixture press rod and rotation rod like FIG35 and press the tire lip down rim the tire detach slot. Then
step the rotation pedal to observe the tire lip and demounting hook, if there’s no abnormality, step
down the rotation pedal to rotate the turntable clockwise to mount the upper side of tire lip into the rim.
If there has resistance and feel the tire is torn or the turntable is stuck, please release the pedal
immediately, and step the pedal upward to reverse the motor and eliminate the resistance. Repeat
the operation till mount the tire completely.

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4.4 Inflation
When inflating the tire, you should be careful and follow the operation procedure strictly. Please
check whether the air connection is intact before inflating. The machine is equipped with inflation
device with a pressure gauge (inflation gun or inflation gauge box), which is used for tire inflation
and air pressure monitoring.
Warning! Explosive!
When inflation, you must follow the above safety operation and abide by the following
instruction:
Carefully check is the size of the rim same to the size of the tire and also check the wear condition of
the tire to secure there is no damage before inflation.
When the inflation pressure is relatively high, you should remove the tire from the machine and inflate in
the protective cover.
When inflate the tire, be carefully, keep your hands and body far away from the tire.
4.4.1 Regular inflation
Loose the tire from the turntable.
Connect the inflation hose with the tire air core. (FIG36)
In the process of inflation, you should repeat stepping the inflation pedal. Confirm the
pressure indicated on the pressure gauge not exceed the scope specified by the
manufacturer. In this machine, there is a pressure decrease valve to keep the inflation
pressure not exceed 3.5bar. Customers can get different inflation pressure by adjusting the
pressure decrease valve according to their own requirement.
If the inflation pressure too high, you can press down the deflation press button on the
inflation device to reach the required air pressure.
Must make sure the wheel was clamped firmly to avoid the risk.
4.4.2 Rapid Inflation (only for the machines with GT)
For the tubeless tire with bad sealing match, when the ordinary inflation is invalid, the rapid pre-inflation can

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be carried out before the ordinary inflation.
Clamp the wheel and connect the inflation hose.
The quick inflation pedal (FIG3-27) on the right side of machine cabinet has two gears: first gear
regular inflation; second gear quick inflation like FIG37. Step down the inflation pedal (FIG3-23)
to the bottom position (second gear) and observe if the tire lip contacts the rim. If not, repeat the
above operation. Then quickly release the pedal when the tire is full to the position of the first
gear. While inflate, observe the pressure gauge to confirm the pressure indicated on the
pressure gauge not exceeds the pressure specified by the manufacturer