Bear 70-109-6 Manual de usuario
70-109-6
TIRE CHANGER USER MANUAL
1 GENERAL INFORMATION
Tire changer has been specifically designed to demount high-speed bus and truck tires with
rims form 14"to 26"and a maximum 1600mm diameter
Any other use is improper and therefore not authorized.before beginning any kind of work
on or with this machine,carefully read and understand the contents of these operating
instructions.
Shall not liable for any injury to persons or damage to things caused by improper use of this
machine.
keep this manual near the machine and consult it as needed during operations.
2 TECHNICAL DATA
Pump motor 1.5KW
Gear-box motor 2.2KW
Handles rim form 14"-26"
Max. wheel diameter 1600mm
Max. wheel width 780mm
Weight(with standard accessories) 570kg
Acoustic pressure level(at work) LPA<70dB(A)
3 GENERAL SAFETY REGULATION
The use of this machine is reserved to specially trained and authorized personnel.
Any unauthorized changes or modifications to the machine,in particular to its electrics
system,relieve form all liability.
Removing or tampering with the safety devices installed on this machine is in violation of
European safety Regulations.
Any work, however minor, on the electric system must be
done exclusively by professionally qualified personnel.
4 SAFETY DEVICES
Tire changer has a number of safety devices designed to guarantee the utmost operator
safety:
1. Check valve on the spindle opening hydraulic line(inside the swivel connector, see
fig.B/1).This prevents the wheel form falling form the spindle if the hydraulic is
accidentally broken.
2. pilot operated dual seal check valve(see Fig.B/2)
This prevents the spindle carrier arm from dropping if the hydraulic circuit accidentally
breaks.
3. Pressure relief valve factory set at 130 bar ±5%(see Fig. B/3).
This limits the pressure in the hydraulic circuit and ensure correct operation of the plant.
4. pump motor overload cut-out(inside the electric enclosure).
This cuts in if the motor overheats to prevent it from burning out.
5. Mechanical tool arm tip lock device (see Fig.B/4).
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Prevents the arm form being moved to its “non-working position”if the tool has been
removed.
CAUTION!
Removing or tampering with safeties is in violation of European Safety Regulations and
relieves manufacturer of any and all liability for injury to persons to damage to things
caused or referable to such acts.
5 TRANSPORT
Depending on customer request, the machine is delivered in 3 packing versions:
1-in a wooden crate with pallet
2-fixed to a pallet
3-no packing
In all cases the machine is protected by a plastic covering.
In the first and second case, the machine must be handled with a fork-lift truck with the
forks positioned as shown in the figure.
6 UNPACKING
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Once the packing material has been removed.check the machine visually for any signs of
damage.
Keep the packing materials out of the reach of children as they can be a source of danger.
N.B.:Keep the packing for possible future transport.
7 INSTALLATION INSTALLATION PLACE
Choose the place the machine is to be installed in compliance with current work place
safety regulations.
The floor should not be broken or uneven so that the machine will be stable and the
platform rollers can move freely.
If the installation is outdoor, it must be protected by some kind of roofing against rain.
The following work environment conditions are applicable:Relative humidity :form 30-95%
without condensation; Temperature: form 0-55℃.
ATTENTION!
The machine must not be operated in explosive atmospheres.
WORKPLACE REQUIREMENTS
Maximum machine space requirements are 1950×1600mm with a minimum distance from
walls as shown in the diagram.
Caution! These measurements are also the tire changers working range. persons
other than specially trained and authorized operators are expressly forbidden to
enter this area.
Position the tire changer lifting it with the specific bracket (1,fig.A) with the tool carrier arm
(2,Fig.A) lowered all the way. the spindle (3,Fig.A) closed and the tool carrier slide (4,Fig.A)
at its stop close to the arm.
It is not essential to anchor the machine to the floor however, the floor must be smooth and
permit the platform rollers to move freely.
ELECTRIC HOOK UP
Before making any electric hook up, check to be certain that the mains voltage
corresponds to that stamped on the voltage tag (attached to the cord near the tire
changer’s plug).
It is absolutely essential that:
-the system is equipped with a good grounding circuit.
-The machine is connected to a power supply line circuit breaker set for 30 mA.
3
-The current instate is adequately protected against overcurrents with fuses or
automatic switch with rated values as swohn in the table.
power supply
Rated current
Fuse Switch
220v-1ph-50/60Hz. 10A 16A
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Note the required power draw as highlinghted on the data plate fixed to the tire
changer. Check to make sure the shop electric wiring circuit is dimensioned
sufficiently to carry this.
Work on the electric system, even if minor, must be done
exclusively by professionally qualified personnel.
Manufacturer shall not be liable for any injury to persons or damage to things
caused by failure to comply with these regulations and can cancel warranty
coverage.
SENSE OF ROTATION CHECKS
Connect the machine to the mains, switch “ON”(5,fig.B/7)and check that the gearbox motor
rotation corresponds to the indicating arrow(6,fig.B/6).
8 IDENTIFYING WARNING SIGNALS
WARNING!
Unreadable and missing warning labels must be replaced
immediately.
Don’t interpose any object witch could prevent the operator
from seeing the labels.
Use the code in this table to order labels that you might need.
9 IDENTIFICATION OF CONTROL
The mobile control center(fig.c)enables the operator to work at any position around the
machine .on this mobile control center the following controls are located:
-The lever(8,fig.c)which in position a lifts the chuck arm and in position b lowers it; in
position c moves the tool holder arm and in position dmoves them away.(Note:in order to
memorise this operation, there is a hole in the lever guard corresponding to position c).
-The chuck switch(9,fig.c)when moved upwards, opens the arms of the self-centering
chuck (LOCKING),and when moved down, close the arm of the self-centering
chuck(UN-LOCKING).
-The pedal(10,fig.c)when pressed on the left or right side rotates the self-centering chuck
in the same direction as shown by the arrows placed on the foot pedal.
NOTE:all the controls are very sensitive and small movements of the .machine can be done
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with precision.
The tire changer also has:
Lever(15,Fig.D) to tip the tool carrier arm (14,Fig.4) form its work to its non-working
position and vice-versa.
Handle(19,Fig.D) that permits alternative use of the bead-breaking disk(17,Fig.D)or the
hooked tool(18,Fig.D).
10 WORKING POSITION
The diagram shown here illustrates the various working positions
(A,B,C,D)referred to in the following pages describing how to use the tire changer.
Use of these positions ensures greater precision, speed and safety for those using the
machine.
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11 CORRECT OPERATION CHECKS
Before using the tire changer, a number of checks should be made to ensure it works
correctly.
CAUTION! The operations described here should be done with the tool carrier arm in its
non-working position.
First use lever(15,Fig.d) to tip the arm to this position.
CAUTION!
Do not move your face close to the tool carrier arm when you
release it to tip it as needed.
Lifting arm lift or lower and hydraulic chuck open or close, there is
always a potential for crushing anything in its movement range.
Always work form the position given in the instructions keep well
out of the workin
g
ran
g
e.
1) move the joystick(8,Fig.c)up (a):the spindle carrier arm (2,Fig.a) should lift ;move the
joystick down (b):the arm should lower.
move the joystick towards the left (C):the tool carriage and the mobile platform(13,Fig.D)
should move towards the spindle(3,Fig.A);move the joystick towards the right (d) the
carriage and platform should move away form the spindle.
DANGER!
When the spindle carrier arm is lowered. There is
always a potential for crushing anything in its
movement range. Always work from the position
given in the instructions keep well out of the
working range of the various moving arms.
2)Tum switch lever(9,Fig.C) towards the top:the spindle arm should open; (2,Fig.Ａ) move
the lever down and the spindle arms should close.
DANGER!
When the spindle arms open or closed,there is
always a potential for crushing anything in their
movement range.
Always work form the position given in the imstru-
Ctions keep well out of the spindle’swprking range.
3)depress the right pedal(10,Fig.C): the spindle(2,Fig.A) should turn clockwise; depress the
left pedal: the spindle should turn anticlockwise.
4)check to be certain the hydraulic circuit is working correctly:
-move switch lever(9,Fig.c) towards the top until the spindle arms are fully extended.
-hold the switch lever in this position (Top) and check if the pressure shown on the gauge
on the swivel fitting is 130 bar 5%.
If the pressure shown in not as indicated here, do not use the tire changer and call
your nearest tongguang assistance center.
12 USE
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LOCKING THE WHEEL
WARNING!
During all operations, keep hands and the other parts of the body
as possible form moving parts of the machine.
Necklaces, bracelets and too large clothes can bedangerous for
the operator.
WARNING!
In locking the wheel, make sure that clamps are properly
positioned on the rim, so as to prevent the tire form falling.
1）take the mobile control unit to work position B.
2）pull the tool-holder arm (14,Fig.D) into the upright position.
3)Operating form the mobile control center, move the sliding table
(13,fig.D) away form the self-centering chuck and place the wheel in
ٛvertical position on the sliding table.
4)Continuing to operate form the mobile control center, lift or lower the
arm in order center the self-centering chuck(3,fig.a) relative to the rim.
5)With the jaws(22,fig.A) in the closed position, move the wheel on the
sliding table to the self-centering chuck. Operate the chuck switch
(9,fig.C)to open the self=centering chuck and lock onto the inside wheel
rim. The most convenient locking position on the rim may be selected
according to figE/1-E/2-E/3-E/4-E/5 and E/6.
Always remember that the safest locking is on the central flange.
N.B.for rims with channel, clamp the wheel so that the channel is near the outside of the rim
(fig.E/1)
DANGER!
This operation can be extremely dangerous.
Do it manually only if you are certain you can keep the wheel
balanced.
For large and heavy tires an adequate lifting device must be
used.
DANGER!
Do not very the area with a wheel clamped on the tire changer
and lifted up from the floor.
TUBELESS AND SUPERSINGLE WHEELSBEAD BREAKING
1) Look the wheel on the self-centering chuck, as previously described, and ensure that
the tire is deflated.
2) Take the mobile control unit to work position C.
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3) LOWER THE TOOL-HOLDER ARM (14,Fig.F) into is working position and allow it to
lock.
4) Operating form the mobile centre, rotate the wheel until the outside of the rim skims the
bead-breaker disk(fig.F).
5) Rotate the wheel and at the same time, advance the bead-breaker plate with small
forward movements following the profile of the rim, with the plate.
6) Continue until the first bead is fully detached. To facilitate this operation, lubricate the
bead and the edge of rim with tire lubricant whilst the wheel is rotated.
DANGER!
Always check to be certain that the arm is corrected hooked to
the carriage.
DANGER!
The bead breaker disk must NOT be pressed against the rim but
against the bead.
Remember that the stronger the tire’s adherence to the rim. the slower must be the disk’s
penetration.
CAUTION!
To avoid all risk, lubricate the beads turning the wheel
CLOCKWISE if you are working on the outside plane and
ANTICLOCKWISE if working on the inside plane.
7) Bring the tool carrier arm (14,Fig.F) back form the edge of the rim.Release the hook,
raise the arm to its non-working position, shift it and rehook it in its second work position
(Fig.G).
8) Push the double headed tool lever (19,Fig.G)and turn the head 180º until it locks
automatically.
Then slide the tool-holder arm along the sliding table and lock it in position.
DANGER!
Do not hold your hands on the tool when you bring it back to its
work position. Your hand(s) could be trapped between the tool
and the wheel.
9) Take the mobile control unit to work position D.
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