John Bean EEWH553A Series, Operation Instructions Manual

 - Page 18 - 

4.0 MOUNTING AND DEMOUNTING PRECAUTIONS

IMPORTANT!
BEFORE MOUNTING A TIRE ON A RIM, PAY ATTENTION 
TO THE FOLLOWING:
A. THE RIM MUST BE CLEAN AND IN GOOD CONDI-
TION: IF NECESSARY CLEAN IT AFTER REMOVING 
ALL WHEEL-WEIGHTS INCLUDING ‘TAPE WEIGHTS’ 
INSIDE THE RIM.
B. THE TIRE MUST BE CLEAN AND DRY, WITHOUT ANY 
DAMAGE TO THE BEAD.
C. REPLACE THE RUBBER VALVE STEM WITH A NEW 
ONE OR REPLACE THE ‘O’ RING IF THE VALVE STEM 
IS MADE OF METAL.
D. IF THE TIRE REQUIRES A TUBE, MAKE SURE THE 
TUBE IS DRY AND IN GOOD CONDITION.
E. LUBRICATION IS NECESSARY TO MOUNT THE TIRE 
CORRECTLY AND GET A PROPER CENTERING. BE 
SURE YOU ARE USING APPROVED LUBRICANT ONLY.
F. MAKE SURE THE TIRE IS THE CORRECT SIZE FOR 
THE RIM.

4.1 DEMOUNTING TUBELESS TIRES 

A.

 Remove all wheel-weights from the rim.  Remove the 

valve stem or valve stem core and defl ate the tire (Fig.11).

      535a

Fig.11

B.

 Break both beads.

Hold open the Bead Breaker, roll the tire/rim into the Breaker 
area (Fig. 12).  Ensure that the Tire/rim assembly is against 
the rubber breaker pads on the side of the machine.  Make 
certain that the bead breaker blade is not over the top of any 
portion of the rim.  Now activate the bead breaker pedal.  As 
soon as the bead dislodges from the rim, release the breaker 
foot pedal.  It may be necessary to rotate the tire 90 degrees 
and repeat the above procedure to dislodge all beads. 

Pay extra attention during this operation as 
it is easy to mistakenly keep your foot on the 
bead breaking pedal too long.  This could po-
tentially result in bead or rim damage (Fig.12)

536

Fig.12

NOTICE !
ON CHEVROLET CORVETTE WHEELS WITH THE OP-
TIONAL LOW PRESSURE SENSOR INSTALLED, BREAK 
THE BEAD AT 90 DEGREES OFFSET FROM THE VALVE 
STEM. DAMAGE TO THE WHEEL AND/OR SENSOR  WILL 
RESULT IF THE BEAD IS BROKEN AT ANY OTHER POINT 
ON THE RIM.

C.

 Set the rim clamps to the proper position: retract clamps 

to clamp the wheel from the outside and expand clamps to 
clamp from the inside.

When clamping small wheels (14” or smaller) from the out-
side, set the clamps at a diameter nearly equal to the rim 
diameter, before placing the wheel on the clamps.  This will 
help avoid the possibility of pinching the tire as the clamps 
retract.

NOTICE !
TO MINIMIZE THE RISK OF SCRATCHING ALLOY OR 
CLEAR COATED RIMS, THESE RIMS SHOULD BE 
CLAMPED FROM THE OUTSIDE.

1/16”