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(6) Operating Instructions 

 

This unit must be properly operated and properly main-

tained to help avoid accidents that could damage the unit and 
injure the operator or bystanders. This section of the Operat-
ing Instructions manual review basic operations and use of 
controls.  These  instructions  should  be  reviewed  with  all 
employees before they are allowed to work with the machine. 
Keep these instructions near the machine for easy reference.

 

(7) Bead Loosening and Demounting

 

This machine may operate differently from machines you 
have  previously  operated.  Practice  with  a  regular  steel 
wheel and  tire combination  to  familiarize  yourself  with 
the machine’s operation and function. 
 

A. 

Remember to remove all weights from both sides of 

the wheel. Weights left on backside of wheel may cause the 
wheel to be clamped unleveled. This may result in the com-
bination  mount/demount  head  contacting  the  rim  causing 
scratches. On alloy wheels, always rotate the wheel one turn 
after  setting  the  mounting  head  to  insure  proper  wheel 
chucking. 
 

B. 

Always   review  with   the   owner   any  nicks   and 

scratches on expensive wheel and tire combinations prior to 
servicing. 
 

C. 

Review the custom and special wheel section of this 

manual prior to servicing custom or special tire/wheel com-
binations. 
 

Loosening the beads on a partially or fully inflated tire is 
unsafe and causes excess movement and friction against 
the  bumper  pads  and  excessive  wear  on  pivots.  Deflate 
the tire completely to prolong the life of your machine. 
 

1.  Deflate  the  tire  completely  by  removing  the  valve  core 
from the valve stem (figure 1). Be cautious and do not smoke 
as a 

flammable gas could have been introduced into the tire 

at some time

Tires  are  always  installed  and  removed  from  the  rim’s 
narrow side. 
 

D. 

Always  loosen  the  bead  on  the  narrow  side  of  the 

wheel’s drop center first (tire removed in figure 2 for clarity).

 

Figure 2 - Determine Narrow Side of Wheel

 

Figure 1 - Remove Valve Core to Deflate Tire

 

 

E. 

The clamps on the table top may extend beyond the 

table top itself. To avoid damaging the clamps, move them 
to their full inward position before positioning a tire for bead 
loosening. 
 

 

F. 

Use extra care in positioning the bead loosener shoe 

on larger wheels/tires, and on alloy wheels. Make sure the 
shoe  rests  next  to  but  not  on  the  rim,  and  not  on  the  tire 
sidewall. 
 
2. Pull the bead loosener shoe away from the machine and 
roll wheel into position. The valve stem should be in the 2 
o’clock  position  to  accommodate  a  possible  asymmetric 
safety  hump  type  rim.  Position  the  bead  loosener  shoe 
against the tire next to, but not on, the rim. Press the bead 
loosener foot pedal to actuate the shoe and loosen the bead. 
It may be necessary 
to  loosen  the  bead  in  multiple  locations  around  the  tire 
(figure 3). 
 

3. Turn the wheel around and repeat loosening procedure 
on the other side of the wheel (figure 4). This should be the 
long side of the drop center (figure 2).

 

Figure 3 - Position Tire and Bead Loosener Shoe 

Summary of Contents for TWC-412NIC

Page 1: ...ation of the machine such as safety warning and precautions assembly operating main tenance and parts list as sembly diagrams Keep your invoice with this manual for future reference Manufacturer shall...

Page 2: ...x77x100cm Shipping Weight 220kg 230kg Voltage 0 9 1 1 of nominal voltage Frequency 0 98 1 02 of nominal frequency Ambient Temperature 5 40 C Operation Humidity 30 95 Installation altitude NOT exceed 1...

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

Page 4: ...4 1 Optional Upgrade Accessories...

Page 5: ...ker 3 Connect the inflation gun if it is to be installed to its connector 4 Connect the tire changer to a compressed air network Suggested working pressure is 8 bar using the connector which is on the...

Page 6: ...ion against the bumper pads and excessive wear on pivots Deflate the tire completely to prolong the life of your machine 1 Deflate the tire completely by removing the valve core from the valve stem fi...

Page 7: ...the top of the vertical slide to move the demount head into contact with the rim edge Push the locking handle back and lock the slide into place figure 7 Figure 7 Position Mount Demount Tool 8 The mo...

Page 8: ...r bead lift Figure 10 Insert Bead Lifting Tool 11 Push the bead lifting tool down towards the wheel to lift the tire bead up and over the knob portion of the demount head Hold the tool and bead in thi...

Page 9: ...without checking both tire and wheel for damage and to be certain the sizes match Do not let untrained persons operate tire changer and keep bystanders out of service area Forcing the tire onto the r...

Page 10: ...tube type tires mount lower bead first move swing arm out install tube and then mount upper bead 9 Inflation Tire inflation is performed in three steps BEAD SEAL BEAD SEAT and INFLATION These steps ar...

Page 11: ...nd debris to be blown into the air with enough force to injure operator and or bystander Do not use the bead sealing control position to inflate a tire S This unit is equipped with a pressure limiter...

Page 12: ...ating will usually require at least 7 PSI in the tire 40 PSI is the maximum safe pressure at this stage regardless of tire operating pressure Most European import cars and many aftermarket alloy wheel...

Page 13: ...SAFETY REGULATIONS The operator must be a well trained professional personnel This device could only function when work together with our tire changer We won t responsible for any unauthorized modifi...

Page 14: ...The following steps show how to install the DAS ARM 1 Disconnect the tire changer from the electric power source and the compressed air circuit 2 See Fig 3 and 4 for pulling the mounting seat 1 and 2...

Page 15: ...NTROL VALVE Controlling the control valve level could attain the rise or decline of the tool holding arms TRIAL OPERATIONS The DAS ARM must connect with air compressor and 8 bar air pressure is desira...

Page 16: ...epress the corresponding pedal to close or open the jaws for the clamping of the rim 9 2 DEMOUNTING THE TIRE 1 Firstly break and loosen the beads if it is necessary Loosen the locking nut to lower the...

Page 17: ...g block and closed to mount ing head Press down the bead Using a Tire lever take the tire flap top over the mounting head Turn the table clockwise to demount a bead Finally using the tire lever take t...

Page 18: ...nder the rim flange Finally pull out the mounting head and DAS ARM Fill up the air into tire then remove the tire from tire changer Phenomena Switch level is not flexible Analysis 1 Disconnected with...

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