TM 1-1520-238-T-7
10–160.6
Change 5
10–48A.
FUEL QUANTITY SYSTEM – CAPACITANCE AND INDICATING TEST
10–48A
(USING PSD 60-1AF TEST SET) (cont)
Task
Result
g. Attach T cable (fig. 10–70.7) #1 FWD HIZ
lead connector to TANK UNITS HIZ
receptacle.
NOTE
Do not attach T cable #1/FWD CP lead.
h. Set test set FUNCT switch to MEASURE
EXT.
i. Set test set SELECT switch to TU.
j. On T cable, set TANKS IN/OUT switch to
IN. Check capacitance of #1 FWD LOZ and
#1 FWD HIZ leads on test set LCD indicator.
k. Record #1 FWD LOZ and #1 FWD HIZ T
cable capacitance value.
If capacitance indication is greater than 0.5 pf repair
or replace T cable (TM 1-1500-204-23).
l. Detach T cable #1 FWD LOZ and #1 FWD
HIZ leads from TANK UNITS LOZ and HIZ
receptacles.
NOTE
Do not attach T cable #2/AFT CP lead.
m. Attach T cable #2 AFT LOZ lead connector
to TANK UNIT LOZ receptacle.
n. Attach T cable #2 AFT HIZ lead connector
to TANK UNIT HIZ receptacle.
o. Verify test set FUNCT switch set to
MEASURE EXT.
p. Verify test set SELECT switch set to TU.
q. Verify T cable, set TANKS IN/OUT switch to
IN. Check capacitance of #2 AFT LOZ and
#2 AFTHIZ leads on test set LCD indicator.
r. Record #2 AFT LOZ and #2 AFT HIZ T
cable capacitance value.
If capacitance indication is greater than 0.5 pf repair
or replace T cable (TM 1-1500-204-23).
