Coats CHD-9551 Manual

OPERATING AND MAINTENANCE INSTRUCTIONS
Electro-Hydraulic Tire Changer
For Medium and Large Size Tires
CHD-9551
READ these instructions before placing unit in service KEEP
these and other materials delivered with the unit in a binder
near the machine for ease of reference by supervisors and
operators.
85010081/01
Revision 03/18

2
INDEX
1 - GENERAL INFORMATION...............................................................................................................................................................................3
2 - TECHNICAL DATA...........................................................................................................................................................................................3
3 - GENERAL SAFETY REGULATION.....................................................................................................................................................................3
4 - SAFETY DEVICES.............................................................................................................................................................................................3
5 - TRANSPORT.....................................................................................................................................................................................................3
6 - UNPACKING...................................................................................................................................................................................................4
7 - INSTALLATION................................................................................................................................................................................................4
7.1 Installation place........................................................................................................................................................................................................................4
7.2 Workplace requirements...........................................................................................................................................................................................................4
7.3 Electric hook up..........................................................................................................................................................................................................................6
Sense of rotation check
8 - LAYOUT OF FUNCTIONAL PARTS...................................................................................................................................................................7
9 - IDENTIFYING WARNING SIGNALS.................................................................................................................................................................8
10 - IDENTIFICATION OF CONTROL....................................................................................................................................................................9
11- WORKING POSITION.....................................................................................................................................................................................9
12 - CORRECT OPERATION CHECKS..................................................................................................................................................................9
13 - OPERATION................................................................................................................................................................................................11
13.1 Locking the wheel..................................................................................................................................................................................................................11
Light-alloy rim locking
13.2 Tubeless and supersingle wheels..........................................................................................................................................................................................12
Bead breaking
Demounting
Mounting
13.3 Tubed wheels..........................................................................................................................................................................................................................16
Bead breaking
Demounting
Mounting
13.4 Wheels with split ring...............................................................................................................................................................................................................20
Bead breaking and demounting
Mounting
14 - ORDINARY MAINTENANCE.......................................................................................................................................................................23
15 - TROUBLE SHOOTING..................................................................................................................................................................................24
16- MOVING THE MACHINE.............................................................................................................................................................................24
17- STORING......................................................................................................................................................................................................24
18- SCRAPPING A MACHINE............................................................................................................................................................................24
19- DATA ON SERIAL PLATE...............................................................................................................................................................................25
20- ACCESSORIES.............................................................................................................................................................................................25
ELECTRIC DIAGRAM..........................................................................................................................................................................................26

3
Pump motor
Gear-box motor
Handles rim from
Max. wheel diameter
Max. wheel width
Max. wheel weight
Weight (with standard accessories)
Acoustic pressure level (at work)
1,1 kw
1,8 / 1,85 kw
14" - 56"
2.400 mm
1.300 mm
1800 kg
1025 Kg
LpA <70 dB (A)
GENERAL INFORMATION
1
This tyre changer has been specically designed to demount and mount truck, bus and commercial van tyres, with rims from 14" to 56"
and a maximum 2.400 mm 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.
The manufacturer 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.
Any work, however minor, on the electric system must be done exclusively by professionally qualied personnel.
2
TECHNICAL DATA
3
GENERAL SAFETY REGULATIONS
The use of this machine is reserved to specially trained and authorized personnel.
Any unauthorized changes or modications to the machine, in particular to its electric system, relieve the manifacturer from all liability.
Removing or tampering with the safety devices installed on this machine is in violation of European Safety Regulations.
4
SAFETY DEVICES
The 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 g. B/1). This prevents the wheel from falling from
the spindle if the hydraulic line is accidentally broken.
2. Pressure relief valve factory set at 1.885 PSI (130 bar ±10%) (See Fig. B/2).
This limits the pressure in the hydraulic circuit and ensure correct operation of the plant.
3. Pump motor overload shut-out (inside the electric enclosure).
This provides automatic shut-off for the motor to prevent damage from overheating.
TRANSPORT
5
The machine is delivered in a wooden crate with pallet
The machine must be handled with a fork-lift truck with the forks positioned as shown in the gure A/2.
Shipping weight for the machine is 2.745 lbs (1245 kg.)
Electric Power requirement
220V - 3 PH - 60Hz 26.2 Amp

4
lbs 2745
(KG. 1245)
B/2
B/1
A/2
6
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.
7INSTALLATION
Choose the place the machine is to be installed in compliance with current work place safety regulations. The oor 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 roong against rain.
The following work environment conditions are applicable:
Relative humidity: from 30-95% without condensation;
Temperature: from 32°-131° F (0-55° C.)
UNPACKING
7.1
INSTALLATION PLACE
ATTENTION!
The machine must not be operated in explosive atmospheres.
Maximum machine space requirements are 88.2x6.3 inches (2240x 1640 mm) with a minimum distance from walls as shown in the dia-
gram.
CAUTION! These measurements are also the tyre 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 specic 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.
The mobile control unit has no xed position, but it must be
positioned in a way that the user can observe the machine when working
7.2
WORKPLACE REQUIREMENT

5
A
2
1
4
3
1
The universal tire-changer must be installed on a levelled concrete oor at least 8” (20 cm.) thick, with a minimum concrete quality of
B25 in accordance with DIN 1045 requirements (foundations).
For your reference see the side drawing as well as the table herebelow.
If a oor of this type is not available on site, fastening points of the specied concrete quality are acceptable.
The surface, on which the universal tyre-changer is to be installed, must be at and well levelled in all directions.
Inclinations up to 0,25% relative to the horizontal can be compensated using suitable shims, wedges or the alike.
By means of a Widia bit Ø 16, drill a 0,63 inch (130 mm) into the oor passing through the holes provided on the base frame.
If there is an additional oor covering (B), or if shims or wedges are necessary for levelling (C), longer anchor bolts must be used.
Place an anchor bolt into each hole.
Make sure the anchor bolts extend at least 4.9” (125 mm.) into the concrete slab, as indicated in the drawing.
Tighten the anchor bolts fully.
When working with tire assembly, whose weight is higher than 2,204 lbs (1000 kg.), it is necessary to
fasten the tire-changer to the oor by means of proper anchor bolts.
Ground
Reinforced concrete
Electrowelded grid
Pebble gravel
B/5
98.4 inches (2,500 mm)
98.4 inches
(2,500 mm)
27.5 inches (700 mm)
39.3 inches
(1,000 mm)
Foundationsdimensions inch (cm). Concrete
quality
Min. pressure
resistence
Length Width Thickness
B25 937 lbs/sqft
(425 Kg / cm
2
)
78,74
(200)
64,5
(164)
5,9
(15)
3,93
1,96
5,90
3,93
3,93
inches ø 0,31
inches
Ø 0,7
Ø 0,7
Ø 0,7
MAX 0,25%
4,9
4,9
4,9

6
7.3
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 (at-
tached to the cord near the tire changer’s plug).
It is absolutely essential that :
- the system is equipped with a good grounding circuit.
- The current instake is adeguately protected against overcurrents with fuses or automatic magneto-thermic switch.
Note the required power draw as highlighted on the data plate xed to the tire changer. Check to make sure the shop electric wiring
circuit is dimensioned sufciently to carry this.
Work on the electric system, even if minor, must be done exclusively by professionally qualied electrician.
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.
Connect the machine to the mains, switch “ON” (5, g. B/7) and check that the gearbox motor rotation corresponds to the indicating
arrow (6, g. B/6). If not, switch two wires in the plug .
SENSE OF ROTATION CHECKS
B/6 B/7
12
5
6

7
8
D
A
C
a
b
cd
e
f
gh
10
9
5
8
11
1
3
2
4
22
18
14
13 19
17
15
LAYOUT OF FUNCTIONAL PARTS
1 - Lifting bracket
2 - Self-centering chuck holding arm
3 - Self-centering chuck
4 - Sliding ramp
5 - Switch
8 - Handler
9 - Switch
10 - Pedal
11 - Handler
13 - Carriage
14 - Tool holding arm
15 - Arm lever
17 - Bead breaking disk
18 - Tool
19 - Arm locking cylinder
22 - Jaw
WARNING!
During all operations, keep hands and other parts of the body
as far as possible from moving parts of the machine. Necklaces,
bracelets and too large clothes, can be dangerous for the op-
erator.

8
9
IDENTIFYING WARNING SIGNALS
WARNING:
Unreadable and missing warning labels must be replaced immediately. Do not use the tyre changer
if one or more labels are missing. Do not add any object that could prevent the operator from seeing
the labels.Use ref. code #2019225 to order labels set, if needed.

9
10
CONTROLS DESCRIPTION
The diagram B/8 illustrates the various working positions (A,B,C,D) referred to in the following pages describing how to use the tyre changer.
Use of these positions ensures greater precision, speed and safety for those using the machine.
The mobile control unit (C) enables the operator to work at any position around the machine. On this mobile control unit controls are
located:
-The lever (8, g. C) : which in position position [a] lifts the chuck arm, and in position [b] lowers it; in position [c] moves the tool
holder arm and the sliding ramp towards the self-centering chuck, and in position [d] moves them away. Note: to memorize this last
operation, there is a hole in the lever guard corresponding to position [c].
-The lever (11, g. C) : which in position [e] lifts the tool holder arm, and in position [f] in lowers it; in position [g] moves the tool carriage
leftwards, and in position [h] moves it rightwards.
-The chuck (5, g. C) : when moved upwards, opens the arms of the self-centering chuck (locking), and when moved down close
close the arm of the self-centering chuck (unlocking).
-The chuck (9, g. C) : when moved upwards turns the tool with disc towards the spindle, and when moved down ward, turns the tool
with the ngen towards the spindle (17 g. D or 18, g. D).
-The pedal (10, g. C): when pressed on the left or right side rotates the self-centering chuck in the same directionas shown by the
arrows placed on the foot pedal. Both rotations can be made with two different speeds, just placing the selector (12, g B/7) in
position 1 for setting slow rotation and in position 2 for fast rotation of the turntable. The tire changer also has a knob (15, g. D) on the
tool arm, to unlock the double tool and help replacement of double tool with tubeless tires tting/removing tower (on demand, ref.
# 9299274)
WORKING POSITION
CORRECT OPERATION CHECKS
12
Before using the tyre 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.
11
B/8
D
C
a
b
c
d
a
b
cd
e
f
gh
10
9
5
8
11
18
14
13 19
17 15
Act rst on lever (11, Fig. C) 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.
1) Move the lever (8, Fig. C) up (a): the spindle carrier arm (2, Fig. A) should lift; move the lever down (b): the arm should lower.

10
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 vari-
ous moving arms.
Move the joystick towards the lift (c): the tool carriage and the mobile platform (13, Fig. D) shall move towards the spindle (3, Fig. A);
move the jlever towards the hight (d): the carriage and platform shall move away from the spindle.
2) Move the joystick (11, Fig. C) to all available positions and check for each the related movement that must correspond to what
described in chap. 10, “Controls description”.
3) Move switch lever (5, Fig. C) towards the top: the chuck arms (3, Fig. A) should open; move the lever down and the spindle arms
should close.
3) Depress the right pedal (10, Fig. C): the spindle (3, Fig. A) should turn clockwise; depress the left pedal: the spindle should turn coun-
terclockwise.
DANGER!
When the spindle arms open or closed, there is always a potential for crushing anything in their move-
ment range. Always work from the position given in the instructions keep well out of the spindle’s working
range.
D
C
E/1
a
b
cd
e
f
gh
10
9
5
8
11
18
14
13 19
17 15
4) Check to be certain the hydraulic circuit is working correctly:
- move switch lever (5, 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 tting is 1,885 PSI (130 bar ±10%).
If the pressure shown in not as indicated here, DO NOT USE the tire changer and call your nearest Service Center.

11
13.1
RIM CLAMPING
13 OPERATION
WARNING!
In rim clamping, make sure that jaws are properly positioned on the rim, so as to prevent the tire from
falling over
1) Take the mobile control unit to work position B.
2) Pull the tool-holder arm (14, g. D) into the upright position.
3) Operating from the mobile control centre, move the sliding table (13, g. D) away from the self-centering chuck and place the tire
assembly in vertical position over the sliding ramp.
DANGER! POTENTIALLY HAZARDOUS OPERATION!
Do it manually only if you are certain you can keep the tire assembly balanced. For large and heavy tyres an
adequate lifting device must be used.
4) Continuing to operate from the mobile control centre, lift or lower the arm in order centre the self-centering chuck (3, g. A) relative
to the rim.
5) With the jaws (22, g. A) in the closed position, move the tire assembly on the sliding ramp to the self-centering chuck. Operate the
chuck switch (5, g. C) to open the self-centering chuck and clamp the inner side of the rim.
E/2
E/3
E/4
E/5
The most convenient clamping position on the rim may be selected according to gs E/1 - E/2 - E/3 - E/4 - E/5 and E/6.
Always remember that the safest clamping is on the central ange.
For rims with drop center clamping, clamp the wheel so that the drop center is near the outside of the rim (g. E/1).
For rims exceeding a diameter of 46" and without a ange with center hole, the rim can be clamped with the 4 clamping extensions
provided on demand (# 9299270)
(# 9299272) LIGHT-ALLOY RIM CLAMPING
A set of clamps - especially designed for operating on light alloy rims without damaging them - is available upon request.
These clamps are to be inserted (bayonet-like mounting) into the jaw support of the self-centering chuck (see g. E/7).
Thanks to a wing screw the clamp can be locked on the support.
Clamp the rim as illustrated in g. E/8. The specially-made alloy-rim pliers are also available (# 9299271).

12
13.2
DANGER!
Do not very the work area with a wheel clamped on the tire changer and lifted up from the oor.
TUBELESS AND SUPERSINGLE TIRES
BEAD LOOSENING
1) Clamp the tire assembly on the self-centering chuck, as previously described, and ensure that the tire is deated.
3) Lower the tool-holder arm (14, g. F) into working position and allow it to lock.
2) Take the mobile control unit to work position C.
DANGER!
Always check to be certain that the arm is correctly hooked to the carriage.
E/6
E/7
E/8
DANGER!
The bead loosener disk must NOT be pressed against the rim but against the tire bead.
5) Rotate the wheel and at the same time, advance the loosener disk plate with small forward movements following the prole of the
rim.
6) Continue until the rst bead is fully detached.
To facilitate this operation, lubricate the bead and the edge of the rim with tire lubricant whilst the tire assembly is rotated.
CAUTION!
To avoid all risk, lubricate the beads turning the tire assembly CLOCKWISE if you are working on the outside
face and COUNTERCLOCKWISE if working on the inside face.
4) Operating from the mobile control centre, manoeuvre the wheel until the outside of the rim skims the bead-loosener disk (g. F).

13
Remember that the stronger the tire’s adherence to the rim, the slower must be the disk’s penetration.
7) Move the tool carrier arm (14, Fig. F) back from 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).
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 tire assembly.
8) Push the double headed tool lever (9, g.C) and turn the head180° until it locks automatically. Then slide the tool-holder arm along
the sliding table and lock it in position.
Repeat the operation previously described until the second bead is completely loosened.
During the bead loosening operation, the nger tool (18, g.G) can be lowered so that it is out of the way.
9) Take the mobile control unit to work position D.
F G
14 18
DEMOUNTING
Tubeless tires can be demounted in two ways:
1) If the tire is not difcult to demount, once the beads have been loosened, use the bead disk to push against the inside plane of the
tire until both beads come off the rim (See Fig. H). Always keep the tire rotating while pushing with the bead disck
2) With Supersingle or very hard tires the procedure described above cannot be used. The hook tool will have to be used as follows:
- Transfer the tool carrier arm to the outside plane of the tire.
- Insert lever (17, Fig. I) between rim and bead at the right of the tool.
-Press down on the lever and lower the tire assembly to bring the edge of the rim about 2 inches (5 cm) from the hooked tool.
-Turn the tire assembly counterclockwise pressing down on lever until the bead is completely off.
-Move the tool carrier arm to its non-working position and then move it to the inside face of the tire assembly.
- Rotate the tire assembly and at the same time move the hook tool forward inserting it between rim and bead until it is anchored to
the bead (See Fig. I).
-Move the rim 1.5-2 inch (4-5 cm) from the tool taking care that it does not unhook from the bead.
-Move the hook tool towards the outside until the red reference dot is by the outside edge of the rim.
Take the mobile control unit to work position C.
Take the mobile control unit to position B.
Take the mobile control unit to work position D.

14
-Place the tool carrier arm in the working position, then the bead disk to push against the inside face of the tire (see g. H). It’s is best to
do this with the wheel turning.
I
H
17
-Always keep the rotating counterclockwise, while pushing with the bead disk.
Turn the wheel counterclockwise pushing with disk until the tire comes completely off the rim.
DANGER!
When the beads come off the rim, the tire will fall. Check to make sure there are no by-standers in the work
area.
MOUNTING
Tubeless tires can be mounted using either the bead loosener disk or the hook tool. If the tire is not problematic, use the bead loosener
disk. If the tire is very rigid, the hook tool must be used.
TIRE MOUNTING WITH THE DISK
Follow these steps:
1) If the rim has been removed from the spindle, put it back on the spindle as described in the section on “RIM CLAMPING”.
2) Lubricate both beads and the rim with tyre manufacturer recommended lubricant.
3) Attach the g-clamp to the outside edge of the rim at the highest point (See Fig. M).
CAUTION!
Make sure the g-clamp is rmly attached to the rim.
Take the mobile control unit to work position B.
4) Put the tire on the platform and lower the spindle (make sure the g-clamp is at the high point).
5) Lift the rim with the tire hooked to it and turn it anticlockwise about 6-8 inches (15-20 cm). The tyre will be positioned included across
the rim.
Take the mobile control unit to work position B.

15
L
M
6) Position the bead loosener disk against the second bead of the tire and turn the spindle until the g-clamp is at the low point (at 6
o’clock).
7) Move the disk away from the tire assembly.
8) Remove the g-clamp and riposition it at 6 o’clock outside the second bead (See Fig. N).
9) Turn the spindle clockwise 90° to bring the g-clamp to 9 o’clock.
10) Move the disk forward until it is about 0.5-1 inches (1-2 cm) inside the edge of the rim. Begin to turn the spindle clockwise checking
to make sure that, with a 90° turn, the second bead begins to slip into the drop center.
11) When the bead is fully mounted, move the tool away from the tire assembly, tip it to its non-working position and remove the g-
clamp.
Take the mobile control unit to work position C.
13) Close the arms of the spindle completely. Support the tire assembly to prevent it falling off.
DANGER!
Potentially hazardous operation!
Do it manually only if you are certain you can keep the tire assembly balanced. For large and heavy tires
14) Move the ramp to remove the tire asembly from the spindle.
15) Remove the tire assembly.
If the tire permits it, the operation described above can be speeded up by mounting both beads at the same time:
- Follow the steps described under points 1,2,3,4 described above but instead of attaching the g-clamp to just the rst bead (refer to
point 4) clip it to both.
- Lift the rim with the tire hooked to it and turn it counterclockwise 6-8 inches (15-20 cm) (g-clamp at 10 o’clock).
- Follow the steps described in points 10,11,12,13,14,15 above.
Take the mobile control unit to work position B.
N

16
MOUNTING WITH THE HOOKED TOOL
1) Follow the steps described in points 1,2,3,4,5 for mounting with the disk.
2) Move the tool carrier arm to its non-working position. Move it to the inside face of the tire and rehook it at this position.
3) Check to make sure the hook tool is positioned facing the tire bead. If not, press lever (9, Fig. C) and turn it 180°.
Take the mobile control unit to work position D.
4) Move the tool forward until the red reference dot is lined up with the outside edge of the rim and about 1/4 inch (5 mm) from it (See
Fig. O).
5) Move to the outside of the tire assembly and check the exact position of the hook visually and adjust it as needed. Then turn the
spindle clockwise until the clip is at the bottom (6 o’clock). The rst bead will be on the rim.
6) Remove the g-clamp.
Take the mobile control unit to work position D.
7) Remove the tool from the tire.
8) Move the tool carrier arm to its non-working position. Move it to the outside plane of the tire and rehook it in this position.
9) Turn the tool 180° with lever (9, Fig. C).
10) Attach the g-clamp at the bottom (6 o’clock) outside the second bead (See Fig. N).
Take the mobile control unit to work position C.
11) Turn the spindle counterclockwise to about 90° (clip at 9 o’clock).
12) Bring the tool forward until the red reference dot is lined up with the outside edge of the rim and about 1/4 inch (5 mm) from it. Begin
to turn the spindle counterclockwise and check if, after about 90° of rotation the second bead has started to slip into the drop center.
Continue turning until the g-clamp is at the bottom (6 o’clock).
The second bead will now be mounted on the rim.
13) Follow the steps described in points 11, 12, 13, 14, 15 for mounting with the disk, since this will ensure that the tire assembly is removed
correctly from the machine.
Take the mobile control unit to work position C.
O
N
13.3
TUBE TIRE
BEAD LOOSENING
WARNING: Release ination valve when deating the tyre so that the valve, falling inside the rim, is not an obstacle during bead loosen-
ing.
Follow all the steps described previously for bead loosening tubeless tyres.
With tube tires, however, stop disk movement as soon as the bead has loosened to avoid damaging the tube ination valve.
DEMOUNTING
Take the mobile control unit to work position C.

17
1) Tip the tool carrier arm (14, Fig. D) to its non-working position. Move it to the outside face of the tire and rehook it in this position.
2) Rotate the tire assembly and at the same time move the hook tool (18, Fig. D) forward inserting it between rim and bead until it is
anchored to the tool.
3) Move the rim 1.5-2inch (4-5 cm) from the tool taking care that it does not unhook from the bead.
4) Move the hook tool towards the outside until the red reference dot is by the outside face of the rim.
5) Insert lever (see Fig. P) between rim and bead at the right of the tool.
6) Press down on the lever and lower the tire assembly bring the edge of the rim about /4 inch (5 mm) from the hooked tool.
7) Turn the tire counterclockwise pressing down on lever until the bead is completely off.
8) Move the tool carrier arm to its non-working position. Lower the spindle until the tire is pressed down against the ramp . As the ramp is
moved slightly towards the outside, the tyre will open a little and thus create enough space to remove the inner tube.
9) Remove the inner tube and lift the tire assembly back up.
Take the mobile control unit to work position B.
P D
18
14
13 19
17
15
Take the mobile control unit to work position D.
10) Move the tool carrier arm to the inside face of the tire, turn the hook tool 180° and lower the arm to its work position. Insert it between
rim and bead and move it until the bead is by the front edge of the rim (best to do this with the tire assembly turning).
11) Move the rim about 4-5 cm from the tool making sure the hook does not detach from the rim.
Take the mobile control unit to work position B.
12) Move the hook tool so that its red reference dot is about 1,2 inch (3 cm) inside the rim.
13) Insert lever between rim and bead at the right of the tool (See Fig. Q).
14) Press down on the lever and lower the tire to bring the edge of the rim about 2 inches (5 cm) from the hooked tool.
Turn the tire assembly counterclockwise pressing down on lever until the tyre comes completely off the rim.
DANGER!
When the beads come off the rim, the tire will fall. Check to make sure there are no by-standers in the
work area.
MOUNTING
1) If the rim has been removed from the spindle, put it back on the spindle as described in the section on “RIM CLAMPING”.
2) Lubricate both beads and the rim with tire manufacturer recommended lubricant.
3) Attach the g-clamp to the outside edge of the rim at the highest point (See Fig. R).
CAUTION!
Make sure the g-clamp is rmly attached to the rim.

18
4) Put the tire on the ramp and lower the spindle (make sure the g-clamp is at the high point) to hook the rst bead on the g-clamp.
Take the mobile control unit to work position B.
Q R
5) Lift the rim with the tire hooked to it and turn it counterclockwise about 6-8 inches (15-20 cm). The tyre will be positioned inclined
across the rim.
6) Move the tool carrier arm to its non-working position. Move it to the inside face of the tire and rehook it in this position.
7) Check to make sure the hook tool is positioned facing the bead. If not, press lever (9, Fig. C) and turn it 180°.
8) Move the tool forward until the red reference dot is lined up with the outside edge of the rim and about 1/4 inch (5 mm) from it (See
Fig. S).
9) Move to the outside of the tire assembly and check the exact position of the hook visually and adjust it as needed. Then turn the
spindle clockwise until the g-clamp is at the bottom (6 o’clock). The rst bead will be on the rim.
Remove the g-clamp.
Take the mobile control unit to work position D.
10) Remove the tool from the tire.
11) Move the tool carrier arm to its non-working position. Move it to the outside face of the tire.
12) Turn the tool 180° with lever (19, Fig. D).
13) Turn the spindle until the valve hole is at the bottom (6 o’clock).
14) Move the ramp (4 Fig. A) under the tire assembly and lower the spindle until the tire is pressed down against the platform . As the
platform is moved slightly towards the outside, the tire will open a little and thus create enough space to insert the inner tube.
NB: The valve hole may be asymmetrical to the centre of the rim. In this case position and insert the inner tube as shown in Fig. T.
Insert the valve through the hole and x it with its locking ring.
15) Place the inner tube in the drop center of the rim (NB: to facilitate this, turn the spindle clockwise).
Take the mobile control unit to work position D.
Take the mobile control unit to work position C.
Take the mobile control unit to work position B.

19
S
T
16) Turn the spindle until the valve is at the bottom (6 o’clock).
17) Inate the inner tube a little (until it has no folds) so as not to pinch it while mounting the second bead.
18) Attach an extension to the valve and then remove the locking ring.
The purpose of this operation is to allow the valve to be loose so that it is not ripped out during second bead mounting.
19) Lift the tire assembly again and attach the g-clamp outside the second bead about 8 inches (20 cm) to the right of the valve (See
Fig. U).
20) Turn the spindle clockwise until the g-clamp is at 9 o’clock.
21) Move the tool carrier arm (14, Fig. D) to its working position.
22) Bring the tool forward until the red reference dot is lined up with the outside edge of the rim and about 1/4 inch (5 mm) from it.
23) Turn the spindle a little clockwise until you can insert the bead guide lever into its seating on the hook tool (See Fig. V). This lever can
be supplied on demand.
24) Pull back on this lever which will guide the bead into drop center. Continue to turn the spindle until the tire is completely mounted
on the rim.
25) Remove the g-clamp. Remove the hook tool by turning the spindle counterclockwise and moving it towards the outside.
26) Tip the tool carrier arm to its non-working position.
27) Position the ramp directly under the tire assembly and lower the spindle until the tire rests on the ramp.
DANGER! POTENTIALLY HAZARDOUS OPERATION!
Do it manually only if you are certain you can keep the tire assembly balanced. For large and heavy tires an adequate
lifting device must be used
28) When the tire is resting on the ramp, check to make sure the valve is perfectly centered with its hole. If it is not, turn the spindle slightly
to adjust the position. Fix the valve with its locking ring and remove the extension.
29) Close the arms of the spindle completely. Support the tire to prevent it falling off.
Take the mobile control unit to work position B.
Take the mobile control unit to work position C.
U V

20
30) Move the ramp to release the tire from the spindle.
31) Remove the tire.
13.4
TIRES WITH SPLIT RING
BEAD LOOSENING AND DEMOUNTING
TIRE ASSEMBLIES WITH 3-PIECE RINGS
1) Clamp the tire assembly on the spindle as described previously and check to make sure it has been deated.
2) Take the mobile control unit to work position B.
3) Lower the tool carrier arm (14, Fig. D) to its work position until it is locked in position by its hook.
4) Position the bead loosener disk level with the rim (See Fig. W).
5) Turn the spindle and at the same time move the disk forward a bit at a time following the contour of the rim until the rst bead is com-
pletely free (NB: lubricate while doing this).
CAUTION! If the tire has an inner tube, work very carefully and be prepared to stop the disk immediately once the bead has been broken
so as not to damage the valve and the inner tube.
6) Repeat this procedure but this time bring the disk against the split-ring (See Fig. Z) until the lock ring is freed. Remove this with the special
lever (19, Fig. Z) or with the help of the disk.
7) Remove the split-ring.
8) Move the tool carrier arm (14, Fig. D) back from the edge of the rim. Release the hook and tip the arm to its non-working position.
Move the tool carrier arm to the inside face of the tire assembly.
9) Press lever (9, Fig. C) and turn the tool head 180° which will automatically lock in this position. Lower the arm to its working position.
10) Turn the spindle and at the same time bring the bead loosener disk up against the tire following the contour of the split-ring until the
second bead has been broken (NB: Lubricate during this process).
Continue to move the disk forward until about half the tire has demounted from the rim (See Fig. K).
11) Move the tool carrier arm to its non-working position.
12) Move the ramp (4, Fig. A) directly under the tire.
13) Lower the spindle until the tire is resting on the ramp.
W Z
19
Take the mobile control unit to work position B.
14) Move the ramp towards the outside until the tire is completely off the rim. Watch out for the valve!
TIRE ASSEMBLIES WITH 5-SEGMENT SPLIT RINGS
1) Clamp the tire assembly on the spindle as described previously and make sure it is deated.
Take the mobile control unit to work position C.