Passenger Tire Changers Service Manual 07-13 Rev.B
68
6.19 MH CYLINDER: CHECK AND REPLACEMENT
:
30’
: medium cross screwdriver, end key 19mm, allen key 8mm
: Defective cylinder may cause the following malfunction:
1.
Air
leaking.
2.
Low bead pushing pressure.
3.
Cylinder slides down itself.
TO CHECK THE MH CYLINDER:
Connect the air pressure to the machine.
Remove the plastic cover.
Lower the cylinder and check if it is leaking from the top flange or from the fitting.
Raise the cylinder and check if it leaks air from the lower flange or from the fitting.
Lower the cylinder and remove the hose from the lower fitting.
Keep pressing the control valve
If the air comes out from the fitting the piston seal is defective.
If the air comes out from the hose, the leaking is caused by the control valve.
Make the same operation with the rear side.
TO REPLACE THE CYLINDER:
Place the arm on the turntable in order to hold the arm once
without the cylinder.
Disconnect air pressure from the machine
Unplug the air pipes from the cylinder.
Remove the upper and lower bolts and remove the defective cylinder.