Quantcast BACK-UP ALARM DOES NOT OPERATE - continued - TM-10-3930-673-20-10119

 

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BACK-UP ALARM DOES NOT OPERATE - continued - TM-10-3930-673-20-10118
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TM-10-3930-673-20-1 All Terrain Lifter Army System (ATLAS) 10 000 lb Capacity Manual
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BACK-UP ALARM DOES NOT OPERATE - continued - TM-10-3930-673-20-10120
TM 10-3930-673-20-1
VOLTAGE TEST
(1) Remove four screws from left-hand
instrument panel and lift selector panel
out to get to back-up alarm switch.
(2) Disconnect negative battery cable
(Para 8-44).
(3) Disconnect wire 21 from back-up
switch.
(4) Set multimeter to volts dc.
(5) Connect multimeter positive (+) lead to
wire 21 where wire 21 connects to
back-up switch.
(6) Connect multimeter negative () lead to
known good ground.
(7) Connect negative battery cable
(Para 8-44).
(8) Turn engine start switch ON, BUT DO
NOT START ENGINE
(TM 10-3930-673-10).
(9) Place travel select lever in reverse "R"
position (TM 10-3930-673-10).
(a) If 24 vdc is present, go to Step 17
of this fault.
(b) If 24 vdc is not present, go to
Step 3 of this fault.
(10) Turn engine start switch to OFF
position (TM 10-3930-673-10).
(11) Place travel select lever in neutral "N"
position (TM 10-3930-673-10).
(12) Disconnect negative battery cable
(Para 8-44).
VOLTAGE TEST
(1) Disconnect wire 20 from back-up
switch.
(2) Set multimeter to volts dc.
(3) Connect multimeter positive (+) lead to
wire 20.
(4) Connect multimeter negative () lead to
known good ground.
(5) Connect negative battery cable
(Para 8-44).
(6) Turn engine start switch ON, BUT DO
NOT START ENGINE
(TM 10-3930-673-10).
(a) If 24 vdc is present, replace back-
up switch (Para 8-40).
(b) If 24 vdc is not present, go to
Step 4 of this fault.
(7) Turn engine start switch to OFF
position engine start switch
(TM 10-3930-673-10).
TR01095
(8) Disconnect negative battery cable
(Para 8-44).
2-67

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