CEMB USA C211 (C) - Manual (Page 19)

I 0147 - 18 I 0147 - 19 GB GB
11 - Self-diagnostics
When + are pressed together, a test is enabled for the correct operation of the displays and LED’s of the
PC board after the end of which the wording
appears on the left display. At this point, correct operation of the
position sensor can be checked by looking at the positioning LED’s regarding the outside:
- When the wheel is moved slowly in the direction of rotation of the machine, the AUTO LED should start flashing
while the ALU-S LED should remain steady.
- When the wheel is moved slowly in the opposite direction, the AUTO LED should start flashing while the ALU1 LED
should remain steady.
- When switching from reset, the wording “ ” should appear on the right display..
- Press .
- A number appears on the RIGHT display, which is useful for calibrating the rim distance gauge (only for specialized
personnel).
- Press .
12 - Routine maintenance (see exploded drawings)
Before carrying out any operation, disconnect the machine from the mains.
12.1 - To replace the driving pulley
- Remove the head and the weight shelf being careful not to pull away the electrical cables.
- Unscrew the pulley mounting screw in order to replace the pulley.
- Check supply pressure of the spinner device (see PRESSURE ADJUSTMENT FOR SPIN AND BRAKING DEVICE ).
- Excessive pressure will cause premature damage of the rubber.
12.2 - To replace the brake pad
Back-off the two screws fastening the worn brake pad to the motor mounting brake. Securely fix the new brake pad
by tightening the screws.
12.3 - To replace the fuses
Remove the weight shelf in order to gain access to the power supply board on which two fuses are installed. If the
fuses need replacement, use ones of the same current rating. If the fault persists, contact the Technical Service De-
partment.
12.4 - Maintenance of the special pneumatic circuit
It is important to periodically clean the compressed air filter and check that there be sufficient lubricating
oil The bowl should be filled 3/4; to top up, use mineral oil of medium viscosity (30 cSt at 20° C) (WAIR-
SOL, LXOL grade). Normal oil flow rate is one drop every 10 operations.
N.B.: DRAIN FREQUENTLY ANY CONDENSATE BUILT UP IN THE FILTER BOWL VIA RELATIVE
VALVE.
NONE OF THE OTHER MACHINE PARTS REQUIRE MAINTENANCE.