John Bean EEWB304B, Service Manual

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Checkout and maintenance
1-7
F 52 READ OUTPUT VOLTAGE OF THE WIDTH POTENTIOMETER
This function is only available with the JBC vPI System III balancer.
Slide the SAPE in the home position. 1.
Press and release the
2.
<F>
key, toggle the
<Up / DOWN>
arrow keys until
“F”
“52”
is displayed and press enter
Displays 3.
“A8” “dTH” and then changes to “3.15” “0.05” “3.10” The voltage
should read 3.15vDC ± 0.05 in the home position and greater than 0.20vDC when
the tip of the SAPE arm is touching the backing collar.
F/P 53 DISPLAY TEST
used to diagnose the display panel. Once activated the display will either scroll a message or all LED’s will
light up. Pressing
<sTOp>
displays
“goo” “_d_” “ByE”
and cancels this test.
F/P 55 CHECK AC AND DC VOLTAGES
Press and release the <F/p>
key, turn the shaft until the display reads
“F/p” “55”
and press enter. machine
displays
“pOr VOL tst”
for one second, the display toggles between AC voltage and DC voltage. Example:
“AC 230” and “dc 5.15”. Although some machines require only 120vAC the machine still displays AC 230
volts, the step up transformer generates 230vAC on these units. Press STOP button to exit this function.
F/P 56 CHECK PEDAL AND HOOD SWITCHES ON POWER CLAMP
Press and release the <F/p>
key, turn the shaft until the display reads
“F/p” “56”
and press enter. Depend
-
ing on the type of vibratory will depend on the status. Power Clamp vibratory will measure the status of the
Hood switch and both pedal switches. units without the power clamp vibratory will measure the status of the
hood switch only.
Display Left Window status Display Right Window status
Hd
Hood up
Ped
Pedal up
Pedal static
Hood Down Pedal Down
F/P 59 DISPLAYS THE UNBALANCE OF THE BARE SHAFT
Press and release the <F/p>
key, turn the shaft until the display reads “
F/p
” “F” “59” is displayed and press
enter. Display should read 0.10 or less. Anything greater than .10 requires bare shaft calibration F84. Press
<STOP> to exit this function.
F/P 60 READ SHAFT RPM
This test displays the motor RPm, a reading of 190 RPm’s +/- 10 on a vPI III and SOT Low Digital or 90
RPm’s on a vPI I,II. It is recommended that a tire and wheel be used for this test. Press “STOP” to exit this
function.
F/P 63 CONTINUOUS BALANCING
mount a tire and wheel assembly. Activating this code puts the balancer in a continuous spin cycle and up
-
dates the amount of imbalance every 5 seconds. Press <STOP> to cancel this test.
F/P 64 DISPLAYS THE TRANSDUCER OUTPUT
Transducer output should be steady. Any slight vibration of the unit should cause the readings to fluctuate.
After activating F/p
64 the display will change to “ADE” “1-2” “___” for one second. By forcing the shaft rear
-
ward the read should display negative, forcing the shaft forward the reading should display a positive voltage.
Press the F/p
key to toggle to the front transducer (2).