TM 1-1520-252-T6-3.3 TRANSMISSION CHIP DETECTOR FUZZ BURN OFF OPERATIONAL CHECK6 - 3 . 3INITIAL SETUPPersonnel Required:Aircraft ElectricianReferences:TM 55-1520-240-23Equipment Condition:TM 55-1520-240-23:Battery ConnectedElectrical Power OnApplicable Configurations:W i t h Tools:Test Set, Chip Detector Fuzz Burn OffTE 145-02-5400-1 (Appx E, E-266)MultimeterMaterials:NoneTASKRESULT1.2.3.4.5.6.7.8.9.10.1112Disconnect plug 235P9 from fuzz burn-offmodule.Connect fuzz bum-off test set (2) to fuzzburn-off module (3). Connect plug 235P9 tofuzz burn-off test set.Check That MAINT PNL circuit breaker (1) isclosed.If MAINT PNL circuit breaker (1) is open, close it. Ifit opens again, go to Task 8-14.4.NOTEWhen the fuzz burn off test set is pluggedin, the latch TEST/RESET switch is dis-abled.Connect multimeter to fuzz bum-off test set(2). Adjust multimeter to 50VDC scale.Turn test set ON/OFF switch (4) to ON.Test set POWER light (5) shall come on. If it doesnot, go to Task 6-3.4.Multimeter shall read above 24VDC. If it does not,repair or replace test set as required.Multimeter reading shall drop below 14VDC andreturn to original reading. If it does not, repair orreplace fuzz burn off module (3) as required.Verify that corresponding latch indicator trips(black/white).Results should be the same for steps 6 and 7 ateach selector switch position on the test set.Adjust fuzz burn-off test set selector switch(6) to FWD XMSN.Press and release fuzz burn-off test set TESTswitch (7).Repeat steps 6 end 7 for each selector switchposition on fuzz burn-off test set.NOTEWait at least seven seconds before re-peating test on any one selector switchposition.Turn test set ON/OFF switch (4) to OFF. OpenMAINT PNL circuit breaker (1). Disconnectmultimeter from fuzz burn-off test set (2).Disconnect fuzz burn-off test set. Connectplug 235P9 to fuzz burn-off module (3).Close MAINT PNL circuit breaker (1).Set GND RESET/TEST switch on maintenancepanel at sta 516 to RESET.Indicator reset (black/white).FOLLOW-ON MAINTENANCE:TM 55-1520-240-23:Battery disconnected.Electrical power off.6-88Change 12END OF TASK
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