TB 9-4920-463-24
b. Adjustments. No adjustments can be made.
13. Single Interrupter Logic Test
a. Performance Check
(1) Set Vibrex tester CAM RATE switch to 1800 and stop Vibrex tester.
(2) Disconnect magnetic pickup from CHANNEL A and connect to CHANNEL B.
(3) Set TI controls as follows:
(a)
INTERRUPTER LOGIC switch to SINGLE.
(b)
RPM RANGE switch to X10.
(c)
FUNCTION switch to B.
(d)
RPM TUNE dial to 180.
(e)
MAGNETIC PICKUP switch to COMMON.
(4) Remove two opposite pairs of interrupter screws on Vibrex tester leaving only
two opposite single screws.
(5) Run Vibrex tester and push and hold TEST pushbutton on the TI. Only the
12:00 o'clock light should light.
(6) Release TEST pushbutton and observe clock position of lighted light.
(7) Push and hold VERIFY TUNE pushbutton on TI and adjust RPM TUNE dial
to return light to clock position observed in (6) above.
(8) Release VERIFY TUNE pushbutton and observe new clock position.
(9) Repeat (7) and (8) above until there is no change when VERIFY TUNE
pushbutton is pushed or released.
(10) Verify the following indications on TI:
(a) PHAZOR indication is between 8:30 and 9:30 o'clock.
(b) IPS meter indication is between 0.72 and 0.88.
(c) RPM TUNE dial is between 176 and 184.
(11) Set Vibrex tester CAM RATE switch to 900.
(12) Set TI RPM RANGE switch to X1 and RPM TUNE dial to 900.
(13) Repeat (7) through (9) above and verify the following indications:
(a) IPS meter indication is between 0.36 and 0.44.
(b) RPM TUNE dial is between 882 and 918.
b. Adjustments. No adjustments can be made.
14. Balance Mode Test
a. Performance Check
(1) Set Vibrex tester CAM RATE switch to 1800 RPM.
(2) Set TI RPM RANGE switch to X10 and RPM TUNE dial to 180.
(3) Set Strobex MODE switch to A.
